./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product51_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_39cca85b-340d-41c2-820e-a6b7925f2fd1/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_39cca85b-340d-41c2-820e-a6b7925f2fd1/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_39cca85b-340d-41c2-820e-a6b7925f2fd1/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_39cca85b-340d-41c2-820e-a6b7925f2fd1/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product51_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_39cca85b-340d-41c2-820e-a6b7925f2fd1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_39cca85b-340d-41c2-820e-a6b7925f2fd1/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 82fb1dfaeb04705f6833d1531288fda63f898d4b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 17:50:14,738 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:50:14,739 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:50:14,748 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:50:14,749 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:50:14,749 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:50:14,751 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:50:14,752 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:50:14,753 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:50:14,754 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:50:14,755 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:50:14,755 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:50:14,756 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:50:14,756 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:50:14,757 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:50:14,758 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:50:14,759 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:50:14,760 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:50:14,761 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:50:14,763 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:50:14,764 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:50:14,765 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:50:14,767 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:50:14,767 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:50:14,767 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:50:14,768 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:50:14,769 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:50:14,770 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:50:14,770 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:50:14,771 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:50:14,771 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:50:14,772 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:50:14,772 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:50:14,772 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:50:14,773 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:50:14,773 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:50:14,774 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_39cca85b-340d-41c2-820e-a6b7925f2fd1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 17:50:14,785 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:50:14,785 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:50:14,785 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:50:14,786 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:50:14,786 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:50:14,786 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:50:14,786 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:50:14,786 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 17:50:14,786 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:50:14,787 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:50:14,787 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 17:50:14,787 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 17:50:14,787 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:50:14,788 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:50:14,788 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:50:14,788 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:50:14,788 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:50:14,789 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:50:14,789 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:50:14,789 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:50:14,789 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:50:14,789 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:50:14,789 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:50:14,790 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:50:14,790 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:50:14,790 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:50:14,790 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:50:14,790 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:50:14,790 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:50:14,790 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:50:14,790 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:50:14,791 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:50:14,791 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:50:14,791 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 17:50:14,791 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:50:14,791 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:50:14,791 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 17:50:14,791 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_39cca85b-340d-41c2-820e-a6b7925f2fd1/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 -> 82fb1dfaeb04705f6833d1531288fda63f898d4b [2018-11-18 17:50:14,814 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:50:14,822 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:50:14,824 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:50:14,825 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:50:14,826 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:50:14,826 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_39cca85b-340d-41c2-820e-a6b7925f2fd1/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product51_true-unreach-call_false-termination.cil.c [2018-11-18 17:50:14,861 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_39cca85b-340d-41c2-820e-a6b7925f2fd1/bin-2019/utaipan/data/c5dd9adbc/ccafc87558994033a39a034a6756b309/FLAG519f78123 [2018-11-18 17:50:15,294 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:50:15,294 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_39cca85b-340d-41c2-820e-a6b7925f2fd1/sv-benchmarks/c/product-lines/minepump_spec4_product51_true-unreach-call_false-termination.cil.c [2018-11-18 17:50:15,304 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_39cca85b-340d-41c2-820e-a6b7925f2fd1/bin-2019/utaipan/data/c5dd9adbc/ccafc87558994033a39a034a6756b309/FLAG519f78123 [2018-11-18 17:50:15,312 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_39cca85b-340d-41c2-820e-a6b7925f2fd1/bin-2019/utaipan/data/c5dd9adbc/ccafc87558994033a39a034a6756b309 [2018-11-18 17:50:15,315 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:50:15,316 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:50:15,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:50:15,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:50:15,320 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:50:15,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:50:15" (1/1) ... [2018-11-18 17:50:15,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c3b532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:15, skipping insertion in model container [2018-11-18 17:50:15,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:50:15" (1/1) ... [2018-11-18 17:50:15,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:50:15,359 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:50:15,557 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:50:15,565 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:50:15,673 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:50:15,690 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:50:15,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:15 WrapperNode [2018-11-18 17:50:15,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:50:15,691 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:50:15,691 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:50:15,691 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:50:15,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:15" (1/1) ... [2018-11-18 17:50:15,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:15" (1/1) ... [2018-11-18 17:50:15,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:50:15,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:50:15,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:50:15,718 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:50:15,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:15" (1/1) ... [2018-11-18 17:50:15,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:15" (1/1) ... [2018-11-18 17:50:15,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:15" (1/1) ... [2018-11-18 17:50:15,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:15" (1/1) ... [2018-11-18 17:50:15,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:15" (1/1) ... [2018-11-18 17:50:15,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:15" (1/1) ... [2018-11-18 17:50:15,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:15" (1/1) ... [2018-11-18 17:50:15,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:50:15,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:50:15,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:50:15,751 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:50:15,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39cca85b-340d-41c2-820e-a6b7925f2fd1/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:50:15,792 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-18 17:50:15,792 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-18 17:50:15,792 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-18 17:50:15,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-18 17:50:15,792 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:50:15,792 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:50:15,792 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-11-18 17:50:15,792 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-11-18 17:50:15,793 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-18 17:50:15,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-18 17:50:15,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:50:15,793 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-18 17:50:15,793 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-18 17:50:15,793 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-18 17:50:15,793 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-18 17:50:15,793 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-18 17:50:15,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-18 17:50:15,793 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 17:50:15,793 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 17:50:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-18 17:50:15,794 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-18 17:50:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-18 17:50:15,794 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-18 17:50:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-18 17:50:15,794 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-18 17:50:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-18 17:50:15,794 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-18 17:50:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-18 17:50:15,795 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-18 17:50:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 17:50:15,795 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 17:50:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 17:50:15,795 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 17:50:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-18 17:50:15,795 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-18 17:50:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 17:50:15,796 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 17:50:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 17:50:15,796 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 17:50:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-18 17:50:15,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-18 17:50:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-18 17:50:15,796 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-18 17:50:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-18 17:50:15,797 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-18 17:50:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-18 17:50:15,797 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-18 17:50:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-18 17:50:15,797 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-18 17:50:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:50:15,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:50:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 17:50:15,797 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 17:50:15,798 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-18 17:50:15,798 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-18 17:50:15,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:50:15,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:50:16,222 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:50:16,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:50:16 BoogieIcfgContainer [2018-11-18 17:50:16,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:50:16,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:50:16,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:50:16,226 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:50:16,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:50:15" (1/3) ... [2018-11-18 17:50:16,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78fb6aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:50:16, skipping insertion in model container [2018-11-18 17:50:16,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:15" (2/3) ... [2018-11-18 17:50:16,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78fb6aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:50:16, skipping insertion in model container [2018-11-18 17:50:16,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:50:16" (3/3) ... [2018-11-18 17:50:16,229 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51_true-unreach-call_false-termination.cil.c [2018-11-18 17:50:16,237 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:50:16,242 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:50:16,250 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:50:16,274 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:50:16,274 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:50:16,274 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:50:16,274 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:50:16,274 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:50:16,274 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:50:16,275 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:50:16,275 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:50:16,287 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2018-11-18 17:50:16,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 17:50:16,294 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:16,295 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:50:16,297 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:16,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:16,302 INFO L82 PathProgramCache]: Analyzing trace with hash -300280968, now seen corresponding path program 1 times [2018-11-18 17:50:16,304 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:16,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:16,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:16,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:16,335 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:16,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:50:16,499 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:50:16,500 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 17:50:16,500 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:16,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 17:50:16,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 17:50:16,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:50:16,517 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 2 states. [2018-11-18 17:50:16,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:16,547 INFO L93 Difference]: Finished difference Result 272 states and 337 transitions. [2018-11-18 17:50:16,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 17:50:16,548 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-18 17:50:16,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:16,557 INFO L225 Difference]: With dead ends: 272 [2018-11-18 17:50:16,557 INFO L226 Difference]: Without dead ends: 136 [2018-11-18 17:50:16,560 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:50:16,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-11-18 17:50:16,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2018-11-18 17:50:16,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-11-18 17:50:16,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 160 transitions. [2018-11-18 17:50:16,596 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 160 transitions. Word has length 46 [2018-11-18 17:50:16,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:16,596 INFO L480 AbstractCegarLoop]: Abstraction has 136 states and 160 transitions. [2018-11-18 17:50:16,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 17:50:16,596 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 160 transitions. [2018-11-18 17:50:16,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 17:50:16,599 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:16,599 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:50:16,599 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:16,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:16,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1665914753, now seen corresponding path program 1 times [2018-11-18 17:50:16,599 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:16,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:16,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:16,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:16,601 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:16,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:50:16,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:50:16,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:50:16,685 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:16,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 17:50:16,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:50:16,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:50:16,687 INFO L87 Difference]: Start difference. First operand 136 states and 160 transitions. Second operand 3 states. [2018-11-18 17:50:16,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:16,705 INFO L93 Difference]: Finished difference Result 213 states and 249 transitions. [2018-11-18 17:50:16,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:50:16,705 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-11-18 17:50:16,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:16,707 INFO L225 Difference]: With dead ends: 213 [2018-11-18 17:50:16,707 INFO L226 Difference]: Without dead ends: 126 [2018-11-18 17:50:16,708 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:50:16,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-11-18 17:50:16,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2018-11-18 17:50:16,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-11-18 17:50:16,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 147 transitions. [2018-11-18 17:50:16,718 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 147 transitions. Word has length 48 [2018-11-18 17:50:16,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:16,719 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 147 transitions. [2018-11-18 17:50:16,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 17:50:16,719 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 147 transitions. [2018-11-18 17:50:16,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-18 17:50:16,720 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:16,720 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:50:16,720 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:16,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:16,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1711024509, now seen corresponding path program 1 times [2018-11-18 17:50:16,721 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:16,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:16,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:16,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:16,722 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:16,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:50:16,824 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:50:16,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 17:50:16,825 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:16,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 17:50:16,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 17:50:16,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 17:50:16,826 INFO L87 Difference]: Start difference. First operand 126 states and 147 transitions. Second operand 7 states. [2018-11-18 17:50:17,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:17,164 INFO L93 Difference]: Finished difference Result 381 states and 460 transitions. [2018-11-18 17:50:17,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 17:50:17,164 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-11-18 17:50:17,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:17,167 INFO L225 Difference]: With dead ends: 381 [2018-11-18 17:50:17,168 INFO L226 Difference]: Without dead ends: 279 [2018-11-18 17:50:17,168 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 17:50:17,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2018-11-18 17:50:17,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 271. [2018-11-18 17:50:17,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2018-11-18 17:50:17,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 327 transitions. [2018-11-18 17:50:17,197 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 327 transitions. Word has length 52 [2018-11-18 17:50:17,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:17,198 INFO L480 AbstractCegarLoop]: Abstraction has 271 states and 327 transitions. [2018-11-18 17:50:17,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 17:50:17,198 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 327 transitions. [2018-11-18 17:50:17,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-18 17:50:17,200 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:17,200 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:50:17,200 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:17,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:17,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1861781747, now seen corresponding path program 1 times [2018-11-18 17:50:17,201 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:17,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:17,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:17,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:17,202 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:17,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:50:17,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:50:17,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 17:50:17,312 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:17,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 17:50:17,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 17:50:17,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-18 17:50:17,312 INFO L87 Difference]: Start difference. First operand 271 states and 327 transitions. Second operand 10 states. [2018-11-18 17:50:17,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:17,859 INFO L93 Difference]: Finished difference Result 964 states and 1256 transitions. [2018-11-18 17:50:17,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 17:50:17,859 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2018-11-18 17:50:17,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:17,862 INFO L225 Difference]: With dead ends: 964 [2018-11-18 17:50:17,863 INFO L226 Difference]: Without dead ends: 717 [2018-11-18 17:50:17,867 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-11-18 17:50:17,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2018-11-18 17:50:17,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 705. [2018-11-18 17:50:17,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2018-11-18 17:50:17,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 885 transitions. [2018-11-18 17:50:17,915 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 885 transitions. Word has length 58 [2018-11-18 17:50:17,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:17,916 INFO L480 AbstractCegarLoop]: Abstraction has 705 states and 885 transitions. [2018-11-18 17:50:17,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 17:50:17,916 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 885 transitions. [2018-11-18 17:50:17,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 17:50:17,919 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:17,919 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:50:17,920 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:17,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:17,921 INFO L82 PathProgramCache]: Analyzing trace with hash 57699539, now seen corresponding path program 1 times [2018-11-18 17:50:17,921 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:17,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:17,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:17,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:17,922 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:17,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:50:17,983 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:50:17,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 17:50:17,983 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:17,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 17:50:17,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 17:50:17,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 17:50:17,984 INFO L87 Difference]: Start difference. First operand 705 states and 885 transitions. Second operand 4 states. [2018-11-18 17:50:18,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:18,266 INFO L93 Difference]: Finished difference Result 1779 states and 2436 transitions. [2018-11-18 17:50:18,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 17:50:18,271 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2018-11-18 17:50:18,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:18,276 INFO L225 Difference]: With dead ends: 1779 [2018-11-18 17:50:18,276 INFO L226 Difference]: Without dead ends: 1098 [2018-11-18 17:50:18,278 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:50:18,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2018-11-18 17:50:18,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 954. [2018-11-18 17:50:18,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 954 states. [2018-11-18 17:50:18,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1205 transitions. [2018-11-18 17:50:18,335 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1205 transitions. Word has length 62 [2018-11-18 17:50:18,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:18,335 INFO L480 AbstractCegarLoop]: Abstraction has 954 states and 1205 transitions. [2018-11-18 17:50:18,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 17:50:18,336 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1205 transitions. [2018-11-18 17:50:18,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-11-18 17:50:18,338 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:18,338 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 17:50:18,338 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:18,338 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:18,338 INFO L82 PathProgramCache]: Analyzing trace with hash 719558837, now seen corresponding path program 1 times [2018-11-18 17:50:18,339 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:18,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:18,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:18,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:18,340 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:18,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:18,420 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-11-18 17:50:18,420 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:18,421 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:50:18,421 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 91 with the following transitions: [2018-11-18 17:50:18,423 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [59], [90], [94], [100], [104], [108], [111], [116], [122], [124], [127], [129], [132], [145], [146], [160], [161], [174], [181], [184], [219], [244], [248], [249], [252], [253], [254], [255], [256], [258], [259], [260], [261], [262], [263], [264], [265], [266], [272], [282], [283], [286], [287], [288], [289], [298], [299], [304], [305], [306] [2018-11-18 17:50:18,453 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:50:18,453 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:50:18,935 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 17:50:18,936 INFO L272 AbstractInterpreter]: Visited 60 different actions 72 times. Merged at 7 different actions 7 times. Never widened. Performed 2886 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2886 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 133 variables. [2018-11-18 17:50:18,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:18,958 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 17:50:19,271 INFO L227 lantSequenceWeakener]: Weakened 80 states. On average, predicates are now at 97.66% of their original sizes. [2018-11-18 17:50:19,272 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 17:50:19,483 INFO L415 sIntCurrentIteration]: We unified 89 AI predicates to 89 [2018-11-18 17:50:19,483 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 17:50:19,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 17:50:19,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [7] total 27 [2018-11-18 17:50:19,484 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:19,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-18 17:50:19,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-18 17:50:19,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2018-11-18 17:50:19,485 INFO L87 Difference]: Start difference. First operand 954 states and 1205 transitions. Second operand 22 states. [2018-11-18 17:50:23,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:23,369 INFO L93 Difference]: Finished difference Result 1984 states and 2526 transitions. [2018-11-18 17:50:23,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-18 17:50:23,369 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 90 [2018-11-18 17:50:23,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:23,374 INFO L225 Difference]: With dead ends: 1984 [2018-11-18 17:50:23,374 INFO L226 Difference]: Without dead ends: 1251 [2018-11-18 17:50:23,377 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 103 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=191, Invalid=1069, Unknown=0, NotChecked=0, Total=1260 [2018-11-18 17:50:23,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2018-11-18 17:50:23,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1228. [2018-11-18 17:50:23,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1228 states. [2018-11-18 17:50:23,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1527 transitions. [2018-11-18 17:50:23,435 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1527 transitions. Word has length 90 [2018-11-18 17:50:23,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:23,436 INFO L480 AbstractCegarLoop]: Abstraction has 1228 states and 1527 transitions. [2018-11-18 17:50:23,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-18 17:50:23,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1527 transitions. [2018-11-18 17:50:23,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-11-18 17:50:23,439 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:23,439 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 17:50:23,439 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:23,439 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:23,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1177375627, now seen corresponding path program 1 times [2018-11-18 17:50:23,440 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:23,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:23,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:23,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:23,441 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:23,496 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 17:50:23,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:50:23,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:50:23,496 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:23,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 17:50:23,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 17:50:23,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:50:23,497 INFO L87 Difference]: Start difference. First operand 1228 states and 1527 transitions. Second operand 5 states. [2018-11-18 17:50:23,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:23,545 INFO L93 Difference]: Finished difference Result 2069 states and 2654 transitions. [2018-11-18 17:50:23,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 17:50:23,546 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 118 [2018-11-18 17:50:23,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:23,551 INFO L225 Difference]: With dead ends: 2069 [2018-11-18 17:50:23,551 INFO L226 Difference]: Without dead ends: 1260 [2018-11-18 17:50:23,553 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:50:23,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2018-11-18 17:50:23,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1242. [2018-11-18 17:50:23,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1242 states. [2018-11-18 17:50:23,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1539 transitions. [2018-11-18 17:50:23,614 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1539 transitions. Word has length 118 [2018-11-18 17:50:23,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:23,615 INFO L480 AbstractCegarLoop]: Abstraction has 1242 states and 1539 transitions. [2018-11-18 17:50:23,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 17:50:23,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1539 transitions. [2018-11-18 17:50:23,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-11-18 17:50:23,617 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:23,619 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 17:50:23,619 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:23,619 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:23,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1231768525, now seen corresponding path program 1 times [2018-11-18 17:50:23,619 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:23,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:23,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:23,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:23,620 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:23,680 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 17:50:23,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:50:23,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:50:23,681 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:23,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 17:50:23,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 17:50:23,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:50:23,682 INFO L87 Difference]: Start difference. First operand 1242 states and 1539 transitions. Second operand 5 states. [2018-11-18 17:50:24,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:24,282 INFO L93 Difference]: Finished difference Result 2572 states and 3336 transitions. [2018-11-18 17:50:24,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 17:50:24,283 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 118 [2018-11-18 17:50:24,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:24,293 INFO L225 Difference]: With dead ends: 2572 [2018-11-18 17:50:24,293 INFO L226 Difference]: Without dead ends: 1869 [2018-11-18 17:50:24,296 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 17:50:24,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1869 states. [2018-11-18 17:50:24,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1869 to 1697. [2018-11-18 17:50:24,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1697 states. [2018-11-18 17:50:24,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2107 transitions. [2018-11-18 17:50:24,392 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2107 transitions. Word has length 118 [2018-11-18 17:50:24,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:24,393 INFO L480 AbstractCegarLoop]: Abstraction has 1697 states and 2107 transitions. [2018-11-18 17:50:24,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 17:50:24,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2107 transitions. [2018-11-18 17:50:24,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-11-18 17:50:24,397 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:24,397 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 17:50:24,397 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:24,397 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:24,397 INFO L82 PathProgramCache]: Analyzing trace with hash -2118940067, now seen corresponding path program 1 times [2018-11-18 17:50:24,397 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:24,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:24,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:24,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:24,398 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:24,469 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 17:50:24,470 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:24,470 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:50:24,470 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 131 with the following transitions: [2018-11-18 17:50:24,470 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [63], [64], [67], [69], [72], [79], [82], [83], [86], [88], [90], [94], [100], [104], [108], [114], [116], [122], [124], [127], [143], [144], [145], [146], [147], [148], [149], [151], [154], [158], [159], [160], [161], [171], [174], [178], [184], [214], [218], [219], [223], [226], [228], [231], [241], [249], [252], [253], [254], [255], [256], [258], [259], [260], [261], [262], [263], [264], [265], [266], [270], [271], [272], [274], [275], [276], [277], [280], [281], [288], [289], [292], [293], [294], [295], [296], [297], [298], [299], [304], [305], [306], [308], [309], [310], [311] [2018-11-18 17:50:24,473 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:50:24,473 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:50:24,645 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 17:50:24,645 INFO L272 AbstractInterpreter]: Visited 58 different actions 58 times. Never merged. Never widened. Performed 1863 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1863 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 17:50:24,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:24,650 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 17:50:24,834 INFO L227 lantSequenceWeakener]: Weakened 69 states. On average, predicates are now at 97.31% of their original sizes. [2018-11-18 17:50:24,834 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 17:50:24,982 INFO L415 sIntCurrentIteration]: We unified 129 AI predicates to 129 [2018-11-18 17:50:24,982 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 17:50:24,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 17:50:24,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-11-18 17:50:24,982 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:24,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 17:50:24,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 17:50:24,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-11-18 17:50:24,983 INFO L87 Difference]: Start difference. First operand 1697 states and 2107 transitions. Second operand 13 states. [2018-11-18 17:50:26,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:26,685 INFO L93 Difference]: Finished difference Result 3217 states and 4027 transitions. [2018-11-18 17:50:26,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 17:50:26,686 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 130 [2018-11-18 17:50:26,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:26,691 INFO L225 Difference]: With dead ends: 3217 [2018-11-18 17:50:26,691 INFO L226 Difference]: Without dead ends: 1818 [2018-11-18 17:50:26,693 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 133 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2018-11-18 17:50:26,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2018-11-18 17:50:26,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1806. [2018-11-18 17:50:26,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1806 states. [2018-11-18 17:50:26,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1806 states to 1806 states and 2236 transitions. [2018-11-18 17:50:26,747 INFO L78 Accepts]: Start accepts. Automaton has 1806 states and 2236 transitions. Word has length 130 [2018-11-18 17:50:26,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:26,747 INFO L480 AbstractCegarLoop]: Abstraction has 1806 states and 2236 transitions. [2018-11-18 17:50:26,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 17:50:26,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1806 states and 2236 transitions. [2018-11-18 17:50:26,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-18 17:50:26,750 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:26,750 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 17:50:26,751 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:26,751 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:26,751 INFO L82 PathProgramCache]: Analyzing trace with hash -234698752, now seen corresponding path program 1 times [2018-11-18 17:50:26,751 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:26,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:26,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:26,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:26,752 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:26,820 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-18 17:50:26,821 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:50:26,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 17:50:26,821 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:26,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 17:50:26,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:50:26,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:50:26,822 INFO L87 Difference]: Start difference. First operand 1806 states and 2236 transitions. Second operand 6 states. [2018-11-18 17:50:26,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:26,869 INFO L93 Difference]: Finished difference Result 2982 states and 3756 transitions. [2018-11-18 17:50:26,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 17:50:26,870 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2018-11-18 17:50:26,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:26,875 INFO L225 Difference]: With dead ends: 2982 [2018-11-18 17:50:26,875 INFO L226 Difference]: Without dead ends: 1860 [2018-11-18 17:50:26,877 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 17:50:26,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2018-11-18 17:50:26,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1860. [2018-11-18 17:50:26,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1860 states. [2018-11-18 17:50:26,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1860 states to 1860 states and 2302 transitions. [2018-11-18 17:50:26,932 INFO L78 Accepts]: Start accepts. Automaton has 1860 states and 2302 transitions. Word has length 134 [2018-11-18 17:50:26,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:26,932 INFO L480 AbstractCegarLoop]: Abstraction has 1860 states and 2302 transitions. [2018-11-18 17:50:26,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 17:50:26,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1860 states and 2302 transitions. [2018-11-18 17:50:26,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-18 17:50:26,935 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:26,935 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 17:50:26,935 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:26,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:26,936 INFO L82 PathProgramCache]: Analyzing trace with hash -744171842, now seen corresponding path program 1 times [2018-11-18 17:50:26,936 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:26,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:26,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:26,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:26,936 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:26,995 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-18 17:50:26,995 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:50:26,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 17:50:26,995 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:26,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 17:50:26,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:50:26,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:50:26,996 INFO L87 Difference]: Start difference. First operand 1860 states and 2302 transitions. Second operand 6 states. [2018-11-18 17:50:27,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:27,134 INFO L93 Difference]: Finished difference Result 1881 states and 2330 transitions. [2018-11-18 17:50:27,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 17:50:27,135 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2018-11-18 17:50:27,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:27,139 INFO L225 Difference]: With dead ends: 1881 [2018-11-18 17:50:27,139 INFO L226 Difference]: Without dead ends: 1878 [2018-11-18 17:50:27,140 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 17:50:27,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2018-11-18 17:50:27,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1860. [2018-11-18 17:50:27,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1860 states. [2018-11-18 17:50:27,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1860 states to 1860 states and 2297 transitions. [2018-11-18 17:50:27,193 INFO L78 Accepts]: Start accepts. Automaton has 1860 states and 2297 transitions. Word has length 134 [2018-11-18 17:50:27,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:27,194 INFO L480 AbstractCegarLoop]: Abstraction has 1860 states and 2297 transitions. [2018-11-18 17:50:27,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 17:50:27,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1860 states and 2297 transitions. [2018-11-18 17:50:27,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-18 17:50:27,197 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:27,197 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 17:50:27,197 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:27,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:27,197 INFO L82 PathProgramCache]: Analyzing trace with hash 736205025, now seen corresponding path program 1 times [2018-11-18 17:50:27,197 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:27,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:27,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:27,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:27,198 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:27,263 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 17:50:27,263 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:27,263 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:50:27,263 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-11-18 17:50:27,264 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [64], [67], [69], [75], [79], [82], [83], [86], [88], [89], [90], [94], [100], [104], [108], [111], [114], [116], [122], [124], [127], [143], [144], [145], [146], [147], [148], [149], [151], [156], [158], [159], [160], [161], [171], [174], [178], [184], [214], [218], [219], [223], [226], [228], [231], [238], [241], [244], [248], [249], [252], [253], [254], [255], [256], [258], [259], [260], [261], [262], [263], [264], [265], [266], [270], [271], [272], [274], [275], [278], [279], [280], [281], [282], [283], [288], [289], [292], [293], [294], [295], [296], [297], [298], [299], [304], [305], [306], [308], [309], [310], [311], [314], [315] [2018-11-18 17:50:27,266 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:50:27,266 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:50:28,329 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:50:28,330 INFO L272 AbstractInterpreter]: Visited 115 different actions 698 times. Merged at 19 different actions 71 times. Never widened. Performed 25844 root evaluator evaluations with a maximum evaluation depth of 5. Performed 25844 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 13 fixpoints after 4 different actions. Largest state had 132 variables. [2018-11-18 17:50:28,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:28,334 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:50:28,334 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:28,334 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39cca85b-340d-41c2-820e-a6b7925f2fd1/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 17:50:28,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:28,341 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:50:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:28,443 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:50:28,503 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-18 17:50:28,503 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:50:28,793 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 17:50:28,854 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 17:50:28,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-11-18 17:50:28,854 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:28,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 17:50:28,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 17:50:28,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-18 17:50:28,855 INFO L87 Difference]: Start difference. First operand 1860 states and 2297 transitions. Second operand 5 states. [2018-11-18 17:50:28,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:28,913 INFO L93 Difference]: Finished difference Result 3317 states and 4205 transitions. [2018-11-18 17:50:28,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 17:50:28,913 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2018-11-18 17:50:28,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:28,918 INFO L225 Difference]: With dead ends: 3317 [2018-11-18 17:50:28,918 INFO L226 Difference]: Without dead ends: 1481 [2018-11-18 17:50:28,921 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 273 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-18 17:50:28,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2018-11-18 17:50:28,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1481. [2018-11-18 17:50:28,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1481 states. [2018-11-18 17:50:28,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 1813 transitions. [2018-11-18 17:50:28,967 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 1813 transitions. Word has length 138 [2018-11-18 17:50:28,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:28,967 INFO L480 AbstractCegarLoop]: Abstraction has 1481 states and 1813 transitions. [2018-11-18 17:50:28,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 17:50:28,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 1813 transitions. [2018-11-18 17:50:28,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-18 17:50:28,971 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:28,971 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 17:50:28,971 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:28,971 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:28,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1214337472, now seen corresponding path program 1 times [2018-11-18 17:50:28,971 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:28,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:28,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:28,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:28,972 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:28,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:29,081 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 17:50:29,081 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:29,081 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:50:29,081 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-11-18 17:50:29,081 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [64], [67], [69], [75], [79], [82], [83], [87], [88], [89], [90], [94], [100], [104], [108], [111], [114], [116], [122], [124], [127], [143], [144], [145], [146], [147], [148], [149], [151], [156], [158], [159], [160], [161], [171], [174], [178], [184], [214], [218], [219], [223], [226], [228], [231], [238], [241], [244], [248], [249], [252], [253], [254], [255], [256], [258], [259], [260], [261], [262], [263], [264], [265], [266], [270], [271], [272], [274], [275], [278], [279], [280], [281], [282], [283], [288], [289], [292], [293], [294], [295], [296], [297], [298], [299], [304], [305], [306], [308], [309], [310], [311], [314], [315] [2018-11-18 17:50:29,084 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:50:29,084 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:50:29,715 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:50:29,715 INFO L272 AbstractInterpreter]: Visited 115 different actions 529 times. Merged at 19 different actions 59 times. Never widened. Performed 17246 root evaluator evaluations with a maximum evaluation depth of 5. Performed 17246 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 10 fixpoints after 4 different actions. Largest state had 132 variables. [2018-11-18 17:50:29,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:29,722 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:50:29,722 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:29,722 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39cca85b-340d-41c2-820e-a6b7925f2fd1/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 [2018-11-18 17:50:29,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:29,739 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:50:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:29,806 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:50:29,872 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:50:29,872 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:50:30,055 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 17:50:30,073 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 17:50:30,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-11-18 17:50:30,074 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 17:50:30,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 17:50:30,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 17:50:30,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-11-18 17:50:30,074 INFO L87 Difference]: Start difference. First operand 1481 states and 1813 transitions. Second operand 14 states. [2018-11-18 17:50:31,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:31,118 INFO L93 Difference]: Finished difference Result 3199 states and 4349 transitions. [2018-11-18 17:50:31,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 17:50:31,119 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 138 [2018-11-18 17:50:31,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:31,127 INFO L225 Difference]: With dead ends: 3199 [2018-11-18 17:50:31,128 INFO L226 Difference]: Without dead ends: 2181 [2018-11-18 17:50:31,131 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 270 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2018-11-18 17:50:31,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2018-11-18 17:50:31,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 1665. [2018-11-18 17:50:31,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1665 states. [2018-11-18 17:50:31,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 2049 transitions. [2018-11-18 17:50:31,218 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 2049 transitions. Word has length 138 [2018-11-18 17:50:31,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:31,219 INFO L480 AbstractCegarLoop]: Abstraction has 1665 states and 2049 transitions. [2018-11-18 17:50:31,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 17:50:31,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 2049 transitions. [2018-11-18 17:50:31,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-18 17:50:31,221 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:31,222 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 17:50:31,222 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:31,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:31,222 INFO L82 PathProgramCache]: Analyzing trace with hash -558791763, now seen corresponding path program 1 times [2018-11-18 17:50:31,222 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:31,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:31,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:31,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:31,223 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:31,296 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 17:50:31,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:50:31,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 17:50:31,296 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:31,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 17:50:31,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 17:50:31,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 17:50:31,297 INFO L87 Difference]: Start difference. First operand 1665 states and 2049 transitions. Second operand 4 states. [2018-11-18 17:50:31,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:31,452 INFO L93 Difference]: Finished difference Result 1865 states and 2298 transitions. [2018-11-18 17:50:31,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 17:50:31,453 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 140 [2018-11-18 17:50:31,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:31,455 INFO L225 Difference]: With dead ends: 1865 [2018-11-18 17:50:31,455 INFO L226 Difference]: Without dead ends: 673 [2018-11-18 17:50:31,458 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 17:50:31,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2018-11-18 17:50:31,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 673. [2018-11-18 17:50:31,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 673 states. [2018-11-18 17:50:31,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 808 transitions. [2018-11-18 17:50:31,490 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 808 transitions. Word has length 140 [2018-11-18 17:50:31,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:31,490 INFO L480 AbstractCegarLoop]: Abstraction has 673 states and 808 transitions. [2018-11-18 17:50:31,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 17:50:31,490 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 808 transitions. [2018-11-18 17:50:31,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-11-18 17:50:31,492 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:31,492 INFO L375 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, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 17:50:31,493 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:31,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:31,493 INFO L82 PathProgramCache]: Analyzing trace with hash -281164993, now seen corresponding path program 2 times [2018-11-18 17:50:31,493 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:31,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:31,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:31,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:31,494 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:31,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:31,597 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-11-18 17:50:31,598 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:31,599 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:50:31,599 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-18 17:50:31,599 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-18 17:50:31,599 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:31,599 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39cca85b-340d-41c2-820e-a6b7925f2fd1/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 [2018-11-18 17:50:31,611 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 17:50:31,611 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-18 17:50:31,721 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-18 17:50:31,721 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 17:50:31,727 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:50:31,811 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-18 17:50:31,811 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:50:32,044 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-11-18 17:50:32,070 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 17:50:32,070 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8] total 15 [2018-11-18 17:50:32,070 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:32,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 17:50:32,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 17:50:32,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-11-18 17:50:32,071 INFO L87 Difference]: Start difference. First operand 673 states and 808 transitions. Second operand 9 states. [2018-11-18 17:50:32,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:32,929 INFO L93 Difference]: Finished difference Result 1651 states and 2078 transitions. [2018-11-18 17:50:32,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-18 17:50:32,929 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 192 [2018-11-18 17:50:32,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:32,933 INFO L225 Difference]: With dead ends: 1651 [2018-11-18 17:50:32,933 INFO L226 Difference]: Without dead ends: 1120 [2018-11-18 17:50:32,935 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 378 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2018-11-18 17:50:32,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2018-11-18 17:50:32,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1079. [2018-11-18 17:50:32,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1079 states. [2018-11-18 17:50:32,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1283 transitions. [2018-11-18 17:50:32,983 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1283 transitions. Word has length 192 [2018-11-18 17:50:32,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:32,984 INFO L480 AbstractCegarLoop]: Abstraction has 1079 states and 1283 transitions. [2018-11-18 17:50:32,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 17:50:32,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1283 transitions. [2018-11-18 17:50:32,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-11-18 17:50:32,987 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:32,987 INFO L375 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, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 17:50:32,987 INFO L423 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:32,987 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:32,987 INFO L82 PathProgramCache]: Analyzing trace with hash 2055227517, now seen corresponding path program 1 times [2018-11-18 17:50:32,988 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:32,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:32,988 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:50:32,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:32,988 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:33,097 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-18 17:50:33,097 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:33,097 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:50:33,097 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 193 with the following transitions: [2018-11-18 17:50:33,098 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [55], [57], [58], [59], [64], [67], [69], [75], [79], [82], [83], [87], [88], [89], [90], [94], [100], [104], [108], [111], [114], [116], [122], [124], [127], [143], [144], [145], [146], [147], [148], [149], [151], [156], [158], [159], [160], [161], [171], [174], [178], [184], [214], [218], [219], [223], [226], [228], [231], [238], [241], [244], [248], [249], [252], [253], [254], [255], [256], [258], [259], [260], [261], [262], [263], [264], [265], [266], [270], [271], [272], [274], [275], [278], [279], [280], [281], [282], [283], [288], [289], [292], [293], [294], [295], [296], [297], [298], [299], [304], [305], [306], [308], [309], [310], [311], [314], [315] [2018-11-18 17:50:33,099 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:50:33,099 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:50:33,830 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:50:33,830 INFO L272 AbstractInterpreter]: Visited 116 different actions 531 times. Merged at 22 different actions 62 times. Never widened. Performed 17143 root evaluator evaluations with a maximum evaluation depth of 5. Performed 17143 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 12 fixpoints after 4 different actions. Largest state had 132 variables. [2018-11-18 17:50:33,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:33,834 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:50:33,834 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:33,834 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39cca85b-340d-41c2-820e-a6b7925f2fd1/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 [2018-11-18 17:50:33,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:33,841 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:50:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:33,911 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:50:33,977 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-11-18 17:50:33,977 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:50:34,126 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-18 17:50:34,141 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 17:50:34,141 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-11-18 17:50:34,141 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:34,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 17:50:34,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:50:34,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-18 17:50:34,142 INFO L87 Difference]: Start difference. First operand 1079 states and 1283 transitions. Second operand 6 states. [2018-11-18 17:50:34,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:34,184 INFO L93 Difference]: Finished difference Result 1973 states and 2381 transitions. [2018-11-18 17:50:34,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 17:50:34,185 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 192 [2018-11-18 17:50:34,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:34,188 INFO L225 Difference]: With dead ends: 1973 [2018-11-18 17:50:34,189 INFO L226 Difference]: Without dead ends: 1038 [2018-11-18 17:50:34,191 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 379 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-18 17:50:34,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2018-11-18 17:50:34,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1038. [2018-11-18 17:50:34,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1038 states. [2018-11-18 17:50:34,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1222 transitions. [2018-11-18 17:50:34,235 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1222 transitions. Word has length 192 [2018-11-18 17:50:34,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:34,235 INFO L480 AbstractCegarLoop]: Abstraction has 1038 states and 1222 transitions. [2018-11-18 17:50:34,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 17:50:34,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1222 transitions. [2018-11-18 17:50:34,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-11-18 17:50:34,240 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:34,240 INFO L375 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, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 17:50:34,240 INFO L423 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:34,240 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:34,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1696925187, now seen corresponding path program 1 times [2018-11-18 17:50:34,240 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:34,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:34,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:34,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:34,241 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:34,383 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 53 proven. 17 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-11-18 17:50:34,384 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:34,384 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:50:34,384 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 195 with the following transitions: [2018-11-18 17:50:34,384 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [64], [67], [69], [75], [79], [82], [83], [86], [87], [88], [89], [90], [94], [100], [104], [108], [111], [114], [116], [122], [124], [127], [143], [144], [145], [146], [147], [148], [149], [151], [154], [156], [158], [159], [160], [161], [171], [174], [178], [184], [214], [218], [219], [223], [226], [228], [231], [238], [241], [244], [248], [249], [252], [253], [254], [255], [256], [258], [259], [260], [261], [262], [263], [264], [265], [266], [270], [271], [272], [274], [275], [278], [279], [280], [281], [282], [283], [288], [289], [292], [293], [294], [295], [296], [297], [298], [299], [304], [305], [306], [308], [309], [310], [311], [314], [315] [2018-11-18 17:50:34,386 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:50:34,386 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:50:35,708 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:50:35,708 INFO L272 AbstractInterpreter]: Visited 117 different actions 859 times. Merged at 32 different actions 168 times. Widened at 1 different actions 1 times. Performed 27821 root evaluator evaluations with a maximum evaluation depth of 5. Performed 27821 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 24 fixpoints after 8 different actions. Largest state had 132 variables. [2018-11-18 17:50:35,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:35,709 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:50:35,709 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:35,709 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39cca85b-340d-41c2-820e-a6b7925f2fd1/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 [2018-11-18 17:50:35,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:35,716 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:50:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:35,777 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:50:35,810 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 78 proven. 18 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-18 17:50:35,810 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:50:35,938 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 53 proven. 17 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-11-18 17:50:35,954 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 17:50:35,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2018-11-18 17:50:35,954 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 17:50:35,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 17:50:35,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 17:50:35,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-11-18 17:50:35,954 INFO L87 Difference]: Start difference. First operand 1038 states and 1222 transitions. Second operand 12 states. [2018-11-18 17:50:36,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:36,389 INFO L93 Difference]: Finished difference Result 1837 states and 2237 transitions. [2018-11-18 17:50:36,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 17:50:36,389 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 194 [2018-11-18 17:50:36,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:36,392 INFO L225 Difference]: With dead ends: 1837 [2018-11-18 17:50:36,392 INFO L226 Difference]: Without dead ends: 932 [2018-11-18 17:50:36,394 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 388 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-11-18 17:50:36,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2018-11-18 17:50:36,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 857. [2018-11-18 17:50:36,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 857 states. [2018-11-18 17:50:36,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 969 transitions. [2018-11-18 17:50:36,435 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 969 transitions. Word has length 194 [2018-11-18 17:50:36,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:36,435 INFO L480 AbstractCegarLoop]: Abstraction has 857 states and 969 transitions. [2018-11-18 17:50:36,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 17:50:36,436 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 969 transitions. [2018-11-18 17:50:36,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-11-18 17:50:36,438 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:36,439 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 17:50:36,439 INFO L423 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:36,439 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:36,439 INFO L82 PathProgramCache]: Analyzing trace with hash -11137990, now seen corresponding path program 1 times [2018-11-18 17:50:36,439 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:36,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:36,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:36,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:36,440 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:36,528 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 72 proven. 4 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2018-11-18 17:50:36,529 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:36,529 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:50:36,529 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 241 with the following transitions: [2018-11-18 17:50:36,529 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [55], [57], [58], [59], [62], [63], [64], [67], [69], [72], [75], [79], [82], [83], [86], [87], [88], [89], [90], [94], [100], [104], [108], [111], [114], [116], [122], [124], [127], [143], [144], [145], [146], [147], [148], [149], [151], [154], [156], [158], [159], [160], [161], [171], [174], [178], [184], [214], [218], [219], [223], [226], [228], [231], [238], [241], [244], [248], [249], [252], [253], [254], [255], [256], [258], [259], [260], [261], [262], [263], [264], [265], [266], [270], [271], [272], [274], [275], [276], [277], [278], [279], [280], [281], [282], [283], [288], [289], [292], [293], [294], [295], [296], [297], [298], [299], [304], [305], [306], [308], [309], [310], [311], [314], [315] [2018-11-18 17:50:36,531 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:50:36,531 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:50:37,905 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:50:37,905 INFO L272 AbstractInterpreter]: Visited 123 different actions 994 times. Merged at 36 different actions 193 times. Never widened. Performed 37263 root evaluator evaluations with a maximum evaluation depth of 5. Performed 37263 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 30 fixpoints after 7 different actions. Largest state had 132 variables. [2018-11-18 17:50:37,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:37,906 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:50:37,906 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:37,906 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39cca85b-340d-41c2-820e-a6b7925f2fd1/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 17:50:37,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:37,912 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:50:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:37,980 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:50:38,015 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-18 17:50:38,015 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:50:38,175 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 72 proven. 4 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2018-11-18 17:50:38,191 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 17:50:38,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-11-18 17:50:38,191 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:38,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 17:50:38,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:50:38,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:50:38,192 INFO L87 Difference]: Start difference. First operand 857 states and 969 transitions. Second operand 6 states. [2018-11-18 17:50:38,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:38,220 INFO L93 Difference]: Finished difference Result 1103 states and 1246 transitions. [2018-11-18 17:50:38,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 17:50:38,221 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 240 [2018-11-18 17:50:38,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:38,222 INFO L225 Difference]: With dead ends: 1103 [2018-11-18 17:50:38,222 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 17:50:38,224 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 475 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 17:50:38,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 17:50:38,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 17:50:38,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 17:50:38,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 17:50:38,225 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 240 [2018-11-18 17:50:38,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:38,225 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 17:50:38,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 17:50:38,225 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 17:50:38,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 17:50:38,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 17:50:38,417 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,427 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,430 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,431 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,432 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,631 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,638 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,642 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,642 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,665 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,677 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,683 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,686 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,687 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,687 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,688 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,927 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,934 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,939 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,946 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,950 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,964 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:38,964 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:50:39,195 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 18 [2018-11-18 17:50:40,081 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 40 [2018-11-18 17:50:40,704 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 299 305) the Hoare annotation is: true [2018-11-18 17:50:40,704 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 299 305) no Hoare annotation was computed. [2018-11-18 17:50:40,704 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 306 314) no Hoare annotation was computed. [2018-11-18 17:50:40,704 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 306 314) the Hoare annotation is: true [2018-11-18 17:50:40,704 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 306 314) no Hoare annotation was computed. [2018-11-18 17:50:40,704 INFO L421 ceAbstractionStarter]: At program point L161(line 161) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 (< ~waterLevel~0 1) .cse1) (or (< ~waterLevel~0 2) (not (= 1 ~pumpRunning~0)) .cse1) (or .cse0 (not (= ~systemActive~0 0))))) [2018-11-18 17:50:40,704 INFO L425 ceAbstractionStarter]: For program point L159(lines 159 165) no Hoare annotation was computed. [2018-11-18 17:50:40,704 INFO L428 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 147 171) the Hoare annotation is: true [2018-11-18 17:50:40,704 INFO L421 ceAbstractionStarter]: At program point L157(line 157) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse3 (not (= ~systemActive~0 0))) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (< ~waterLevel~0 2))) (and (or .cse0 (< ~waterLevel~0 1) .cse1) (or .cse2 (not (= 1 ~pumpRunning~0)) .cse1) (or .cse3 .cse0 (not (= ~waterLevel~0 1))) (or .cse3 (or .cse0 .cse2)))) [2018-11-18 17:50:40,704 INFO L425 ceAbstractionStarter]: For program point L157-1(line 157) no Hoare annotation was computed. [2018-11-18 17:50:40,704 INFO L425 ceAbstractionStarter]: For program point L155(lines 155 168) no Hoare annotation was computed. [2018-11-18 17:50:40,704 INFO L425 ceAbstractionStarter]: For program point L155-1(lines 147 171) no Hoare annotation was computed. [2018-11-18 17:50:40,704 INFO L428 ceAbstractionStarter]: At program point L153(line 153) the Hoare annotation is: true [2018-11-18 17:50:40,704 INFO L425 ceAbstractionStarter]: For program point L153-1(line 153) no Hoare annotation was computed. [2018-11-18 17:50:40,704 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 147 171) no Hoare annotation was computed. [2018-11-18 17:50:40,704 INFO L425 ceAbstractionStarter]: For program point L130-1(lines 130 137) no Hoare annotation was computed. [2018-11-18 17:50:40,705 INFO L425 ceAbstractionStarter]: For program point L128(line 128) no Hoare annotation was computed. [2018-11-18 17:50:40,705 INFO L421 ceAbstractionStarter]: At program point L127(line 127) the Hoare annotation is: (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:50:40,705 INFO L421 ceAbstractionStarter]: At program point L126(line 126) the Hoare annotation is: (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:50:40,705 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 120 142) the Hoare annotation is: (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:50:40,705 INFO L421 ceAbstractionStarter]: At program point L126-1(line 126) the Hoare annotation is: (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:50:40,705 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 120 142) no Hoare annotation was computed. [2018-11-18 17:50:40,705 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 120 142) no Hoare annotation was computed. [2018-11-18 17:50:40,705 INFO L421 ceAbstractionStarter]: At program point L132(line 132) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= ~systemActive~0 1) (= main_~tmp~0 1) (= main_~tmp~0 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 17:50:40,705 INFO L421 ceAbstractionStarter]: At program point L132-1(line 132) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= ~systemActive~0 1) (= main_~tmp~0 1) (= main_~tmp~0 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 17:50:40,705 INFO L425 ceAbstractionStarter]: For program point L130(lines 130 137) no Hoare annotation was computed. [2018-11-18 17:50:40,705 INFO L425 ceAbstractionStarter]: For program point stopSystemEXIT(lines 515 529) no Hoare annotation was computed. [2018-11-18 17:50:40,705 INFO L421 ceAbstractionStarter]: At program point L521(line 521) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (not (= 0 |old(~pumpRunning~0)|)) (or (and (= ~systemActive~0 1) .cse0) (not (= |old(~systemActive~0)| 1))) (or (or (= |old(~systemActive~0)| 0) (< ~waterLevel~0 2)) (and (not (= ~systemActive~0 0)) .cse0)))) [2018-11-18 17:50:40,705 INFO L425 ceAbstractionStarter]: For program point L519(lines 519 525) no Hoare annotation was computed. [2018-11-18 17:50:40,705 INFO L421 ceAbstractionStarter]: At program point stopSystemENTRY(lines 515 529) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= |old(~systemActive~0)| 0)) (.cse4 (and (not .cse0) .cse1))) (and (or (and .cse0 .cse1) (not .cse2) .cse3) (or .cse4 .cse2 .cse3) (or (and (= ~systemActive~0 1) .cse1) (not (= |old(~systemActive~0)| 1))) (or (or .cse2 (< ~waterLevel~0 2)) .cse4)))) [2018-11-18 17:50:40,706 INFO L425 ceAbstractionStarter]: For program point stopSystemFINAL(lines 515 529) no Hoare annotation was computed. [2018-11-18 17:50:40,706 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 432 440) no Hoare annotation was computed. [2018-11-18 17:50:40,706 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 432 440) the Hoare annotation is: true [2018-11-18 17:50:40,706 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 432 440) no Hoare annotation was computed. [2018-11-18 17:50:40,706 INFO L428 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 496 514) the Hoare annotation is: true [2018-11-18 17:50:40,706 INFO L425 ceAbstractionStarter]: For program point L505(lines 505 509) no Hoare annotation was computed. [2018-11-18 17:50:40,706 INFO L428 ceAbstractionStarter]: At program point L503(line 503) the Hoare annotation is: true [2018-11-18 17:50:40,706 INFO L425 ceAbstractionStarter]: For program point L505-2(lines 505 509) no Hoare annotation was computed. [2018-11-18 17:50:40,706 INFO L425 ceAbstractionStarter]: For program point L503-1(line 503) no Hoare annotation was computed. [2018-11-18 17:50:40,706 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 496 514) no Hoare annotation was computed. [2018-11-18 17:50:40,706 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 496 514) no Hoare annotation was computed. [2018-11-18 17:50:40,706 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 292 298) no Hoare annotation was computed. [2018-11-18 17:50:40,706 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 292 298) the Hoare annotation is: true [2018-11-18 17:50:40,707 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 107 116) the Hoare annotation is: (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:50:40,707 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 107 116) no Hoare annotation was computed. [2018-11-18 17:50:40,707 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 107 116) no Hoare annotation was computed. [2018-11-18 17:50:40,707 INFO L421 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 413 420) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (or (= ~systemActive~0 0) (< ~waterLevel~0 2)) .cse0) (or .cse0 (not (= ~systemActive~0 1))))) [2018-11-18 17:50:40,707 INFO L425 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 413 420) no Hoare annotation was computed. [2018-11-18 17:50:40,707 INFO L425 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 413 420) no Hoare annotation was computed. [2018-11-18 17:50:40,707 INFO L425 ceAbstractionStarter]: For program point L386-1(line 386) no Hoare annotation was computed. [2018-11-18 17:50:40,707 INFO L425 ceAbstractionStarter]: For program point L384(lines 384 401) no Hoare annotation was computed. [2018-11-18 17:50:40,707 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 380 404) no Hoare annotation was computed. [2018-11-18 17:50:40,707 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 380 404) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 .cse2) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse2 .cse1))) [2018-11-18 17:50:40,707 INFO L421 ceAbstractionStarter]: At program point L399(line 399) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)))) [2018-11-18 17:50:40,707 INFO L425 ceAbstractionStarter]: For program point L399-1(lines 380 404) no Hoare annotation was computed. [2018-11-18 17:50:40,708 INFO L421 ceAbstractionStarter]: At program point L394(line 394) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-18 17:50:40,708 INFO L421 ceAbstractionStarter]: At program point L390(line 390) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 (and (<= 1 processEnvironment_~tmp~3) (= |old(~pumpRunning~0)| ~pumpRunning~0))))) [2018-11-18 17:50:40,708 INFO L425 ceAbstractionStarter]: For program point L388(lines 388 396) no Hoare annotation was computed. [2018-11-18 17:50:40,708 INFO L421 ceAbstractionStarter]: At program point L386(line 386) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-18 17:50:40,708 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 257 270) no Hoare annotation was computed. [2018-11-18 17:50:40,708 INFO L425 ceAbstractionStarter]: For program point L261(lines 261 267) no Hoare annotation was computed. [2018-11-18 17:50:40,708 INFO L428 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 257 270) the Hoare annotation is: true [2018-11-18 17:50:40,708 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 257 270) no Hoare annotation was computed. [2018-11-18 17:50:40,708 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 346 352) no Hoare annotation was computed. [2018-11-18 17:50:40,708 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 346 352) the Hoare annotation is: true [2018-11-18 17:50:40,708 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 531 596) the Hoare annotation is: (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:50:40,708 INFO L425 ceAbstractionStarter]: For program point L543(lines 543 547) no Hoare annotation was computed. [2018-11-18 17:50:40,709 INFO L425 ceAbstractionStarter]: For program point L541-1(lines 541 588) no Hoare annotation was computed. [2018-11-18 17:50:40,709 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 531 596) no Hoare annotation was computed. [2018-11-18 17:50:40,709 INFO L421 ceAbstractionStarter]: At program point L589(lines 540 590) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 17:50:40,709 INFO L421 ceAbstractionStarter]: At program point L579(line 579) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) .cse0) (and (= ~systemActive~0 1) .cse0) (not (= |old(~waterLevel~0)| 1)) (and (and (<= 2 ~waterLevel~0) .cse0) (not (= ~systemActive~0 0))))) [2018-11-18 17:50:40,709 INFO L425 ceAbstractionStarter]: For program point L577(lines 577 583) no Hoare annotation was computed. [2018-11-18 17:50:40,709 INFO L421 ceAbstractionStarter]: At program point L577-1(lines 571 584) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse0 .cse1) (and (= ~systemActive~0 0) .cse2 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (and .cse2 (<= 1 ~waterLevel~0) .cse0 .cse1))) [2018-11-18 17:50:40,709 INFO L425 ceAbstractionStarter]: For program point L542(lines 541 588) no Hoare annotation was computed. [2018-11-18 17:50:40,709 INFO L425 ceAbstractionStarter]: For program point L571(lines 571 584) no Hoare annotation was computed. [2018-11-18 17:50:40,709 INFO L421 ceAbstractionStarter]: At program point L563(line 563) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse0 .cse1) (and (= ~systemActive~0 0) .cse2 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (and .cse2 (<= 1 ~waterLevel~0) .cse0 .cse1))) [2018-11-18 17:50:40,709 INFO L425 ceAbstractionStarter]: For program point L561(lines 561 567) no Hoare annotation was computed. [2018-11-18 17:50:40,709 INFO L425 ceAbstractionStarter]: For program point L561-1(lines 561 567) no Hoare annotation was computed. [2018-11-18 17:50:40,710 INFO L421 ceAbstractionStarter]: At program point L586(lines 541 588) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse2 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse2 .cse1) (not (= |old(~waterLevel~0)| 1)) (and .cse0 (<= 1 ~waterLevel~0) .cse2 .cse1))) [2018-11-18 17:50:40,710 INFO L421 ceAbstractionStarter]: At program point L553(line 553) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 0) .cse2 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and .cse2 (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)))) [2018-11-18 17:50:40,710 INFO L425 ceAbstractionStarter]: For program point L551(lines 551 557) no Hoare annotation was computed. [2018-11-18 17:50:40,710 INFO L425 ceAbstractionStarter]: For program point L551-1(lines 551 557) no Hoare annotation was computed. [2018-11-18 17:50:40,710 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 531 596) no Hoare annotation was computed. [2018-11-18 17:50:40,710 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 271 279) no Hoare annotation was computed. [2018-11-18 17:50:40,710 INFO L428 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 271 279) the Hoare annotation is: true [2018-11-18 17:50:40,710 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 271 279) no Hoare annotation was computed. [2018-11-18 17:50:40,710 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:50:40,710 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 17:50:40,710 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:50:40,710 INFO L425 ceAbstractionStarter]: For program point activatePumpFINAL(lines 405 412) no Hoare annotation was computed. [2018-11-18 17:50:40,711 INFO L425 ceAbstractionStarter]: For program point activatePumpEXIT(lines 405 412) no Hoare annotation was computed. [2018-11-18 17:50:40,711 INFO L421 ceAbstractionStarter]: At program point activatePumpENTRY(lines 405 412) the Hoare annotation is: (or (< ~waterLevel~0 2) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 17:50:40,711 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 477 495) no Hoare annotation was computed. [2018-11-18 17:50:40,711 INFO L425 ceAbstractionStarter]: For program point L486(lines 486 490) no Hoare annotation was computed. [2018-11-18 17:50:40,711 INFO L428 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 477 495) the Hoare annotation is: true [2018-11-18 17:50:40,711 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 477 495) no Hoare annotation was computed. [2018-11-18 17:50:40,711 INFO L428 ceAbstractionStarter]: At program point L484(line 484) the Hoare annotation is: true [2018-11-18 17:50:40,711 INFO L425 ceAbstractionStarter]: For program point L486-2(lines 486 490) no Hoare annotation was computed. [2018-11-18 17:50:40,711 INFO L425 ceAbstractionStarter]: For program point L484-1(line 484) no Hoare annotation was computed. [2018-11-18 17:50:40,711 INFO L428 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 248 256) the Hoare annotation is: true [2018-11-18 17:50:40,711 INFO L425 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 248 256) no Hoare annotation was computed. [2018-11-18 17:50:40,711 INFO L425 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 248 256) no Hoare annotation was computed. [2018-11-18 17:50:40,711 INFO L425 ceAbstractionStarter]: For program point L208-1(lines 204 215) no Hoare annotation was computed. [2018-11-18 17:50:40,711 INFO L428 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 204 215) the Hoare annotation is: true [2018-11-18 17:50:40,711 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 204 215) no Hoare annotation was computed. [2018-11-18 17:50:40,711 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 322 345) the Hoare annotation is: (let ((.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~systemActive~0 0))) (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) (or .cse2 .cse3)) (or .cse0 .cse1 .cse3 (not (= |old(~waterLevel~0)| 1))) (or .cse0 (or .cse1 .cse2 .cse3)))) [2018-11-18 17:50:40,712 INFO L421 ceAbstractionStarter]: At program point L335(line 335) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 (< |old(~waterLevel~0)| 1) .cse1 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse2)) (or (let ((.cse3 (+ ~waterLevel~0 1))) (and (<= .cse3 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| .cse3) .cse2)) (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse1)) (or .cse0 (not (= ~systemActive~0 0))))) [2018-11-18 17:50:40,712 INFO L421 ceAbstractionStarter]: At program point L333(lines 333 339) the Hoare annotation is: (let ((.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse0 (not (= ~systemActive~0 0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (and .cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse4 (not (= ~systemActive~0 1)))) (and (or .cse0 (or .cse1 (not (= |old(~waterLevel~0)| 2)))) (or .cse2 .cse1 .cse0) (or .cse1 (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse3) (< |old(~waterLevel~0)| 1) .cse4 .cse2) (or (let ((.cse5 (+ ~waterLevel~0 1))) (and (<= .cse5 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| .cse5))) (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse4))))) [2018-11-18 17:50:40,712 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 322 345) no Hoare annotation was computed. [2018-11-18 17:50:40,712 INFO L421 ceAbstractionStarter]: At program point L328(line 328) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse0)) (or .cse1 (not (= ~systemActive~0 0))) (or .cse1 (< |old(~waterLevel~0)| 1) .cse0))) [2018-11-18 17:50:40,712 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 322 345) no Hoare annotation was computed. [2018-11-18 17:50:40,712 INFO L425 ceAbstractionStarter]: For program point L326(lines 325 344) no Hoare annotation was computed. [2018-11-18 17:50:40,712 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 42 71) no Hoare annotation was computed. [2018-11-18 17:50:40,712 INFO L425 ceAbstractionStarter]: For program point L56(lines 56 60) no Hoare annotation was computed. [2018-11-18 17:50:40,712 INFO L428 ceAbstractionStarter]: At program point L56-1(lines 56 60) the Hoare annotation is: true [2018-11-18 17:50:40,712 INFO L425 ceAbstractionStarter]: For program point L52-1(lines 52 66) no Hoare annotation was computed. [2018-11-18 17:50:40,712 INFO L428 ceAbstractionStarter]: At program point L52-3(lines 52 66) the Hoare annotation is: true [2018-11-18 17:50:40,712 INFO L428 ceAbstractionStarter]: At program point L48(line 48) the Hoare annotation is: true [2018-11-18 17:50:40,712 INFO L425 ceAbstractionStarter]: For program point L48-1(line 48) no Hoare annotation was computed. [2018-11-18 17:50:40,712 INFO L428 ceAbstractionStarter]: At program point L67(lines 42 71) the Hoare annotation is: true [2018-11-18 17:50:40,712 INFO L425 ceAbstractionStarter]: For program point L63(line 63) no Hoare annotation was computed. [2018-11-18 17:50:40,712 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 42 71) the Hoare annotation is: true [2018-11-18 17:50:40,712 INFO L425 ceAbstractionStarter]: For program point L53(line 53) no Hoare annotation was computed. [2018-11-18 17:50:40,712 INFO L421 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 180 191) the Hoare annotation is: (or (= ~waterLevel~0 |old(~waterLevel~0)|) (not (= 1 ~pumpRunning~0)) (or (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1)))) [2018-11-18 17:50:40,712 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 180 191) no Hoare annotation was computed. [2018-11-18 17:50:40,712 INFO L425 ceAbstractionStarter]: For program point L184-1(lines 180 191) no Hoare annotation was computed. [2018-11-18 17:50:40,712 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 99 105) no Hoare annotation was computed. [2018-11-18 17:50:40,712 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 99 105) the Hoare annotation is: true [2018-11-18 17:50:40,713 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:50:40,713 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-11-18 17:50:40,713 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 17:50:40,713 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:50:40,713 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 354 378) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 17:50:40,713 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 354 378) no Hoare annotation was computed. [2018-11-18 17:50:40,713 INFO L421 ceAbstractionStarter]: At program point L373(line 373) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-18 17:50:40,713 INFO L425 ceAbstractionStarter]: For program point L373-1(lines 354 378) no Hoare annotation was computed. [2018-11-18 17:50:40,713 INFO L421 ceAbstractionStarter]: At program point L368(line 368) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~2) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 17:50:40,713 INFO L421 ceAbstractionStarter]: At program point L364(line 364) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 17:50:40,713 INFO L425 ceAbstractionStarter]: For program point L362(lines 362 370) no Hoare annotation was computed. [2018-11-18 17:50:40,713 INFO L421 ceAbstractionStarter]: At program point L360(line 360) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 17:50:40,713 INFO L425 ceAbstractionStarter]: For program point L360-1(line 360) no Hoare annotation was computed. [2018-11-18 17:50:40,713 INFO L425 ceAbstractionStarter]: For program point L358(lines 358 375) no Hoare annotation was computed. [2018-11-18 17:50:40,713 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 192 203) no Hoare annotation was computed. [2018-11-18 17:50:40,713 INFO L421 ceAbstractionStarter]: At program point waterRiseENTRY(lines 192 203) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< |old(~waterLevel~0)| 1) .cse1 .cse2) (or .cse2 .cse0 (not (= ~systemActive~0 0))) (or .cse2 .cse1 (< |old(~waterLevel~0)| 2) (not (= 1 ~pumpRunning~0))))) [2018-11-18 17:50:40,713 INFO L425 ceAbstractionStarter]: For program point L196-1(lines 192 203) no Hoare annotation was computed. [2018-11-18 17:50:40,713 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 598 605) no Hoare annotation was computed. [2018-11-18 17:50:40,713 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 602) no Hoare annotation was computed. [2018-11-18 17:50:40,713 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 598 605) the Hoare annotation is: true [2018-11-18 17:50:40,714 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 598 605) no Hoare annotation was computed. [2018-11-18 17:50:40,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:50:40 BoogieIcfgContainer [2018-11-18 17:50:40,724 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 17:50:40,724 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:50:40,724 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:50:40,724 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:50:40,724 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:50:16" (3/4) ... [2018-11-18 17:50:40,727 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 17:50:40,732 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-18 17:50:40,732 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-18 17:50:40,732 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-18 17:50:40,732 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 17:50:40,732 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure stopSystem [2018-11-18 17:50:40,732 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-18 17:50:40,733 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-18 17:50:40,733 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-18 17:50:40,733 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-18 17:50:40,733 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-18 17:50:40,733 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-18 17:50:40,733 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-18 17:50:40,733 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 17:50:40,733 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-18 17:50:40,733 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-18 17:50:40,733 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 17:50:40,733 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-18 17:50:40,733 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-18 17:50:40,733 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-18 17:50:40,734 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 17:50:40,734 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 17:50:40,734 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 17:50:40,734 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-18 17:50:40,734 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-18 17:50:40,734 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 17:50:40,734 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 17:50:40,734 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-18 17:50:40,740 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2018-11-18 17:50:40,741 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 17:50:40,741 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 17:50:40,761 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(systemActive) == 1) || ((systemActive == 0 && 0 == pumpRunning) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || (((2 <= waterLevel && pumpRunning == 1) && systemActive == 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || (((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0) [2018-11-18 17:50:40,761 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) [2018-11-18 17:50:40,799 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_39cca85b-340d-41c2-820e-a6b7925f2fd1/bin-2019/utaipan/witness.graphml [2018-11-18 17:50:40,799 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:50:40,800 INFO L168 Benchmark]: Toolchain (without parser) took 25484.41 ms. Allocated memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: 1.4 GB). Free memory was 956.4 MB in the beginning and 1.5 GB in the end (delta: -525.1 MB). Peak memory consumption was 875.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:50:40,800 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:50:40,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:50:40,800 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:50:40,801 INFO L168 Benchmark]: Boogie Preprocessor took 32.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:50:40,801 INFO L168 Benchmark]: RCFGBuilder took 471.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 62.8 MB). Peak memory consumption was 62.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:50:40,801 INFO L168 Benchmark]: TraceAbstraction took 24500.35 ms. Allocated memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: 1.2 GB). Free memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: -435.4 MB). Peak memory consumption was 1.6 GB. Max. memory is 11.5 GB. [2018-11-18 17:50:40,801 INFO L168 Benchmark]: Witness Printer took 75.00 ms. Allocated memory is still 2.4 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:50:40,803 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 374.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 471.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 62.8 MB). Peak memory consumption was 62.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 24500.35 ms. Allocated memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: 1.2 GB). Free memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: -435.4 MB). Peak memory consumption was 1.6 GB. Max. memory is 11.5 GB. * Witness Printer took 75.00 ms. Allocated memory is still 2.4 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 602]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 540]: Loop Invariant Derived loop invariant: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 541]: Loop Invariant Derived loop invariant: ((((!(\old(systemActive) == 1) || ((systemActive == 0 && 0 == pumpRunning) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || (((2 <= waterLevel && pumpRunning == 1) && systemActive == 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || (((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 149 locations, 1 error locations. SAFE Result, 24.4s OverallTime, 18 OverallIterations, 4 TraceHistogramMax, 10.4s AutomataDifference, 0.0s DeadEndRemovalTime, 2.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 3116 SDtfs, 3260 SDslu, 9014 SDs, 0 SdLazy, 5604 SolverSat, 1371 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 2610 GetRequests, 2386 SyntacticMatches, 27 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 809 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1860occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.8s AbstIntTime, 7 AbstIntIterations, 2 AbstIntStrong, 0.9975291647551578 AbsIntWeakeningRatio, 0.9908256880733946 AbsIntAvgWeakeningVarsNumRemoved, 67.03211009174312 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 18 MinimizatonAttempts, 1039 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 61 LocationsWithAnnotation, 5501 PreInvPairs, 5594 NumberOfFragments, 1273 HoareAnnotationTreeSize, 5501 FomulaSimplifications, 15273 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 61 FomulaSimplificationsInter, 16186 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 3318 NumberOfCodeBlocks, 3262 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 4382 ConstructedInterpolants, 0 QuantifiedInterpolants, 951644 SizeOfPredicates, 25 NumberOfNonLiveVariables, 4935 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 30 InterpolantComputations, 14 PerfectInterpolantSequences, 1859/1994 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...