./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product61_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_4ba450a5-409c-4d88-9e61-8a6795973c09/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4ba450a5-409c-4d88-9e61-8a6795973c09/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4ba450a5-409c-4d88-9e61-8a6795973c09/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4ba450a5-409c-4d88-9e61-8a6795973c09/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product61_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4ba450a5-409c-4d88-9e61-8a6795973c09/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4ba450a5-409c-4d88-9e61-8a6795973c09/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 62215579489c65348c20dcb35d4d11bc17ff5b74 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:17:29,667 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:17:29,668 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:17:29,675 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:17:29,676 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:17:29,676 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:17:29,677 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:17:29,678 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:17:29,680 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:17:29,680 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:17:29,681 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:17:29,681 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:17:29,682 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:17:29,682 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:17:29,683 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:17:29,684 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:17:29,684 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:17:29,686 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:17:29,687 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:17:29,688 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:17:29,689 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:17:29,690 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:17:29,691 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:17:29,691 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:17:29,691 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:17:29,692 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:17:29,693 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:17:29,693 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:17:29,694 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:17:29,695 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:17:29,695 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:17:29,695 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:17:29,696 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:17:29,696 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:17:29,696 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:17:29,697 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:17:29,697 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4ba450a5-409c-4d88-9e61-8a6795973c09/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 15:17:29,707 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:17:29,707 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:17:29,708 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:17:29,708 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:17:29,708 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:17:29,709 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:17:29,709 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:17:29,709 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 15:17:29,709 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:17:29,709 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:17:29,709 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 15:17:29,709 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 15:17:29,709 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:17:29,710 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:17:29,710 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:17:29,710 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:17:29,710 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:17:29,711 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:17:29,711 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:17:29,711 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:17:29,711 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:17:29,711 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:17:29,711 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:17:29,711 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:17:29,712 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:17:29,712 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:17:29,712 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:17:29,712 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:17:29,712 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:17:29,712 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:17:29,712 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:17:29,713 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:17:29,713 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:17:29,713 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 15:17:29,713 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:17:29,713 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:17:29,713 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 15:17:29,713 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_4ba450a5-409c-4d88-9e61-8a6795973c09/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 -> 62215579489c65348c20dcb35d4d11bc17ff5b74 [2018-11-18 15:17:29,732 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:17:29,740 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:17:29,742 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:17:29,743 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:17:29,743 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:17:29,744 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4ba450a5-409c-4d88-9e61-8a6795973c09/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product61_true-unreach-call_false-termination.cil.c [2018-11-18 15:17:29,781 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4ba450a5-409c-4d88-9e61-8a6795973c09/bin-2019/utaipan/data/765560b9a/72441b5b36c9414e9830b126463bfc83/FLAG8b59b50a8 [2018-11-18 15:17:30,240 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:17:30,240 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4ba450a5-409c-4d88-9e61-8a6795973c09/sv-benchmarks/c/product-lines/minepump_spec4_product61_true-unreach-call_false-termination.cil.c [2018-11-18 15:17:30,250 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4ba450a5-409c-4d88-9e61-8a6795973c09/bin-2019/utaipan/data/765560b9a/72441b5b36c9414e9830b126463bfc83/FLAG8b59b50a8 [2018-11-18 15:17:30,263 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4ba450a5-409c-4d88-9e61-8a6795973c09/bin-2019/utaipan/data/765560b9a/72441b5b36c9414e9830b126463bfc83 [2018-11-18 15:17:30,265 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:17:30,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:17:30,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:17:30,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:17:30,270 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:17:30,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:17:30" (1/1) ... [2018-11-18 15:17:30,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345e74ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:30, skipping insertion in model container [2018-11-18 15:17:30,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:17:30" (1/1) ... [2018-11-18 15:17:30,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:17:30,312 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:17:30,531 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:17:30,540 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:17:30,648 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:17:30,669 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:17:30,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:30 WrapperNode [2018-11-18 15:17:30,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:17:30,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:17:30,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:17:30,670 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:17:30,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:30" (1/1) ... [2018-11-18 15:17:30,688 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:30" (1/1) ... [2018-11-18 15:17:30,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:17:30,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:17:30,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:17:30,695 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:17:30,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:30" (1/1) ... [2018-11-18 15:17:30,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:30" (1/1) ... [2018-11-18 15:17:30,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:30" (1/1) ... [2018-11-18 15:17:30,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:30" (1/1) ... [2018-11-18 15:17:30,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:30" (1/1) ... [2018-11-18 15:17:30,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:30" (1/1) ... [2018-11-18 15:17:30,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:30" (1/1) ... [2018-11-18 15:17:30,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:17:30,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:17:30,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:17:30,730 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:17:30,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4ba450a5-409c-4d88-9e61-8a6795973c09/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 15:17:30,773 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-18 15:17:30,773 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-18 15:17:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-18 15:17:30,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-18 15:17:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:17:30,774 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:17:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-18 15:17:30,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-18 15:17:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:17:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-18 15:17:30,774 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-18 15:17:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-18 15:17:30,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-18 15:17:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-18 15:17:30,775 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-18 15:17:30,775 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 15:17:30,775 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 15:17:30,775 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-18 15:17:30,775 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-18 15:17:30,775 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-11-18 15:17:30,775 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-11-18 15:17:30,775 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-18 15:17:30,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-18 15:17:30,776 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-18 15:17:30,776 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-18 15:17:30,776 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-18 15:17:30,776 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-18 15:17:30,776 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-18 15:17:30,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-18 15:17:30,776 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 15:17:30,776 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 15:17:30,776 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-18 15:17:30,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-18 15:17:30,777 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 15:17:30,777 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 15:17:30,777 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-18 15:17:30,777 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-18 15:17:30,777 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 15:17:30,777 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 15:17:30,777 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 15:17:30,777 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 15:17:30,778 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-18 15:17:30,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-18 15:17:30,778 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-18 15:17:30,778 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-18 15:17:30,778 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-11-18 15:17:30,778 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-11-18 15:17:30,778 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-18 15:17:30,778 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-18 15:17:30,778 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-18 15:17:30,779 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-18 15:17:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-18 15:17:30,779 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-18 15:17:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-18 15:17:30,779 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-18 15:17:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:17:30,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:17:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 15:17:30,779 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 15:17:30,780 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-18 15:17:30,780 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-18 15:17:30,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:17:30,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:17:31,223 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:17:31,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:17:31 BoogieIcfgContainer [2018-11-18 15:17:31,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:17:31,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:17:31,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:17:31,226 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:17:31,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:17:30" (1/3) ... [2018-11-18 15:17:31,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ccdbeab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:17:31, skipping insertion in model container [2018-11-18 15:17:31,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:30" (2/3) ... [2018-11-18 15:17:31,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ccdbeab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:17:31, skipping insertion in model container [2018-11-18 15:17:31,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:17:31" (3/3) ... [2018-11-18 15:17:31,228 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product61_true-unreach-call_false-termination.cil.c [2018-11-18 15:17:31,234 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:17:31,241 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:17:31,250 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:17:31,273 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:17:31,273 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:17:31,273 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:17:31,273 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:17:31,273 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:17:31,273 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:17:31,273 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:17:31,273 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:17:31,288 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states. [2018-11-18 15:17:31,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 15:17:31,294 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:31,295 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 15:17:31,297 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:31,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:31,301 INFO L82 PathProgramCache]: Analyzing trace with hash -391302279, now seen corresponding path program 1 times [2018-11-18 15:17:31,303 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:31,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:31,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:31,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:31,332 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:31,493 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 15:17:31,495 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:17:31,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:17:31,495 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:31,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 15:17:31,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 15:17:31,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:17:31,511 INFO L87 Difference]: Start difference. First operand 168 states. Second operand 2 states. [2018-11-18 15:17:31,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:31,544 INFO L93 Difference]: Finished difference Result 310 states and 383 transitions. [2018-11-18 15:17:31,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 15:17:31,545 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-18 15:17:31,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:31,555 INFO L225 Difference]: With dead ends: 310 [2018-11-18 15:17:31,555 INFO L226 Difference]: Without dead ends: 155 [2018-11-18 15:17:31,559 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 15:17:31,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-11-18 15:17:31,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2018-11-18 15:17:31,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-11-18 15:17:31,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 183 transitions. [2018-11-18 15:17:31,599 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 183 transitions. Word has length 46 [2018-11-18 15:17:31,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:31,599 INFO L480 AbstractCegarLoop]: Abstraction has 155 states and 183 transitions. [2018-11-18 15:17:31,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 15:17:31,600 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 183 transitions. [2018-11-18 15:17:31,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 15:17:31,602 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:31,602 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 15:17:31,602 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:31,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:31,603 INFO L82 PathProgramCache]: Analyzing trace with hash 224099551, now seen corresponding path program 1 times [2018-11-18 15:17:31,603 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:31,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:31,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:31,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:31,604 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:31,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:31,682 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 15:17:31,682 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:17:31,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:17:31,682 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:31,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:17:31,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:17:31,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:17:31,684 INFO L87 Difference]: Start difference. First operand 155 states and 183 transitions. Second operand 3 states. [2018-11-18 15:17:31,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:31,708 INFO L93 Difference]: Finished difference Result 257 states and 303 transitions. [2018-11-18 15:17:31,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:17:31,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-11-18 15:17:31,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:31,709 INFO L225 Difference]: With dead ends: 257 [2018-11-18 15:17:31,709 INFO L226 Difference]: Without dead ends: 145 [2018-11-18 15:17:31,710 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 15:17:31,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-11-18 15:17:31,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2018-11-18 15:17:31,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-11-18 15:17:31,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 170 transitions. [2018-11-18 15:17:31,719 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 170 transitions. Word has length 48 [2018-11-18 15:17:31,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:31,720 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 170 transitions. [2018-11-18 15:17:31,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:17:31,720 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 170 transitions. [2018-11-18 15:17:31,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-18 15:17:31,721 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:31,721 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 15:17:31,721 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:31,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:31,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1863624711, now seen corresponding path program 1 times [2018-11-18 15:17:31,722 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:31,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:31,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:31,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:31,723 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:31,874 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 15:17:31,874 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:17:31,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:17:31,875 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:31,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:17:31,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:17:31,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:17:31,876 INFO L87 Difference]: Start difference. First operand 145 states and 170 transitions. Second operand 7 states. [2018-11-18 15:17:32,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:32,202 INFO L93 Difference]: Finished difference Result 266 states and 317 transitions. [2018-11-18 15:17:32,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:17:32,203 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-11-18 15:17:32,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:32,204 INFO L225 Difference]: With dead ends: 266 [2018-11-18 15:17:32,204 INFO L226 Difference]: Without dead ends: 145 [2018-11-18 15:17:32,205 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:17:32,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-11-18 15:17:32,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2018-11-18 15:17:32,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-11-18 15:17:32,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 169 transitions. [2018-11-18 15:17:32,214 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 169 transitions. Word has length 52 [2018-11-18 15:17:32,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:32,215 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 169 transitions. [2018-11-18 15:17:32,215 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:17:32,215 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 169 transitions. [2018-11-18 15:17:32,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-18 15:17:32,216 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:32,217 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:17:32,217 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:32,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:32,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1094040186, now seen corresponding path program 1 times [2018-11-18 15:17:32,217 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:32,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:32,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:32,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:32,218 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:32,332 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 15:17:32,332 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:17:32,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:17:32,333 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:32,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:17:32,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:17:32,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:17:32,334 INFO L87 Difference]: Start difference. First operand 145 states and 169 transitions. Second operand 5 states. [2018-11-18 15:17:32,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:32,998 INFO L93 Difference]: Finished difference Result 380 states and 456 transitions. [2018-11-18 15:17:32,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:17:32,999 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2018-11-18 15:17:32,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:33,001 INFO L225 Difference]: With dead ends: 380 [2018-11-18 15:17:33,001 INFO L226 Difference]: Without dead ends: 259 [2018-11-18 15:17:33,002 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 15:17:33,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2018-11-18 15:17:33,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 240. [2018-11-18 15:17:33,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2018-11-18 15:17:33,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 270 transitions. [2018-11-18 15:17:33,024 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 270 transitions. Word has length 70 [2018-11-18 15:17:33,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:33,024 INFO L480 AbstractCegarLoop]: Abstraction has 240 states and 270 transitions. [2018-11-18 15:17:33,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:17:33,025 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 270 transitions. [2018-11-18 15:17:33,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-18 15:17:33,026 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:33,026 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, 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 15:17:33,027 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:33,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:33,027 INFO L82 PathProgramCache]: Analyzing trace with hash -31205295, now seen corresponding path program 1 times [2018-11-18 15:17:33,027 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:33,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:33,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:33,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:33,028 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:33,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:33,131 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 15:17:33,132 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:17:33,133 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 15:17:33,133 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:33,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 15:17:33,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 15:17:33,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:17:33,134 INFO L87 Difference]: Start difference. First operand 240 states and 270 transitions. Second operand 10 states. [2018-11-18 15:17:33,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:33,572 INFO L93 Difference]: Finished difference Result 779 states and 947 transitions. [2018-11-18 15:17:33,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 15:17:33,572 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2018-11-18 15:17:33,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:33,576 INFO L225 Difference]: With dead ends: 779 [2018-11-18 15:17:33,577 INFO L226 Difference]: Without dead ends: 563 [2018-11-18 15:17:33,578 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-11-18 15:17:33,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2018-11-18 15:17:33,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 553. [2018-11-18 15:17:33,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2018-11-18 15:17:33,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 642 transitions. [2018-11-18 15:17:33,613 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 642 transitions. Word has length 84 [2018-11-18 15:17:33,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:33,614 INFO L480 AbstractCegarLoop]: Abstraction has 553 states and 642 transitions. [2018-11-18 15:17:33,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 15:17:33,614 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 642 transitions. [2018-11-18 15:17:33,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-11-18 15:17:33,617 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:33,617 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 15:17:33,617 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:33,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:33,618 INFO L82 PathProgramCache]: Analyzing trace with hash -744823200, now seen corresponding path program 1 times [2018-11-18 15:17:33,618 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:33,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:33,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:33,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:33,619 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:33,723 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-11-18 15:17:33,724 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:17:33,724 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:17:33,724 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 149 with the following transitions: [2018-11-18 15:17:33,726 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [78], [81], [83], [84], [99], [102], [103], [104], [108], [114], [118], [122], [125], [130], [136], [138], [141], [160], [161], [173], [174], [175], [177], [180], [184], [185], [227], [231], [237], [245], [249], [252], [254], [260], [267], [270], [274], [275], [278], [279], [280], [281], [282], [284], [285], [286], [287], [288], [289], [290], [291], [292], [300], [301], [304], [314], [315], [316], [317], [320], [321], [328], [329], [336], [337], [338], [339], [340], [341], [342], [344], [345], [348], [349] [2018-11-18 15:17:33,751 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:17:33,751 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:17:34,067 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 15:17:34,068 INFO L272 AbstractInterpreter]: Visited 54 different actions 54 times. Never merged. Never widened. Performed 2089 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2089 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 15:17:34,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:34,081 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 15:17:34,300 INFO L227 lantSequenceWeakener]: Weakened 82 states. On average, predicates are now at 97.38% of their original sizes. [2018-11-18 15:17:34,300 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 15:17:34,339 INFO L415 sIntCurrentIteration]: We unified 147 AI predicates to 147 [2018-11-18 15:17:34,339 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 15:17:34,340 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 15:17:34,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2018-11-18 15:17:34,340 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:34,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:17:34,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:17:34,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:17:34,341 INFO L87 Difference]: Start difference. First operand 553 states and 642 transitions. Second operand 7 states. [2018-11-18 15:17:35,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:35,250 INFO L93 Difference]: Finished difference Result 1122 states and 1321 transitions. [2018-11-18 15:17:35,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:17:35,250 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 148 [2018-11-18 15:17:35,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:35,253 INFO L225 Difference]: With dead ends: 1122 [2018-11-18 15:17:35,253 INFO L226 Difference]: Without dead ends: 715 [2018-11-18 15:17:35,254 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 147 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:17:35,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2018-11-18 15:17:35,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 711. [2018-11-18 15:17:35,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 711 states. [2018-11-18 15:17:35,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 827 transitions. [2018-11-18 15:17:35,283 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 827 transitions. Word has length 148 [2018-11-18 15:17:35,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:35,284 INFO L480 AbstractCegarLoop]: Abstraction has 711 states and 827 transitions. [2018-11-18 15:17:35,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:17:35,284 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 827 transitions. [2018-11-18 15:17:35,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-11-18 15:17:35,286 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:35,286 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, 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] [2018-11-18 15:17:35,286 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:35,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:35,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1825885454, now seen corresponding path program 1 times [2018-11-18 15:17:35,286 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:35,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:35,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:35,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:35,287 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:35,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:35,346 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-11-18 15:17:35,346 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:17:35,346 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:17:35,347 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 157 with the following transitions: [2018-11-18 15:17:35,347 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [82], [83], [84], [87], [89], [92], [99], [102], [104], [108], [114], [118], [122], [125], [130], [136], [138], [141], [156], [157], [160], [161], [162], [164], [169], [172], [173], [174], [175], [177], [180], [184], [185], [220], [221], [224], [227], [231], [237], [240], [244], [245], [249], [252], [254], [257], [267], [270], [274], [275], [278], [279], [280], [281], [282], [284], [285], [286], [287], [288], [289], [290], [291], [292], [300], [301], [304], [306], [307], [308], [309], [310], [311], [314], [315], [316], [317], [320], [321], [324], [325], [326], [327], [328], [329], [334], [335], [336], [337], [338], [339], [340], [341], [342], [344], [345], [346], [347] [2018-11-18 15:17:35,350 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:17:35,350 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:17:35,458 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 15:17:35,459 INFO L272 AbstractInterpreter]: Visited 60 different actions 60 times. Never merged. Never widened. Performed 2105 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2105 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 15:17:35,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:35,460 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 15:17:35,590 INFO L227 lantSequenceWeakener]: Weakened 75 states. On average, predicates are now at 96.43% of their original sizes. [2018-11-18 15:17:35,590 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 15:17:35,650 INFO L415 sIntCurrentIteration]: We unified 155 AI predicates to 155 [2018-11-18 15:17:35,650 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 15:17:35,650 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 15:17:35,651 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2018-11-18 15:17:35,651 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:35,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 15:17:35,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 15:17:35,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-11-18 15:17:35,652 INFO L87 Difference]: Start difference. First operand 711 states and 827 transitions. Second operand 11 states. [2018-11-18 15:17:37,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:37,476 INFO L93 Difference]: Finished difference Result 1676 states and 1993 transitions. [2018-11-18 15:17:37,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 15:17:37,476 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 156 [2018-11-18 15:17:37,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:37,479 INFO L225 Difference]: With dead ends: 1676 [2018-11-18 15:17:37,479 INFO L226 Difference]: Without dead ends: 989 [2018-11-18 15:17:37,480 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 158 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-11-18 15:17:37,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2018-11-18 15:17:37,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 985. [2018-11-18 15:17:37,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 985 states. [2018-11-18 15:17:37,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1144 transitions. [2018-11-18 15:17:37,510 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1144 transitions. Word has length 156 [2018-11-18 15:17:37,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:37,510 INFO L480 AbstractCegarLoop]: Abstraction has 985 states and 1144 transitions. [2018-11-18 15:17:37,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 15:17:37,510 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1144 transitions. [2018-11-18 15:17:37,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-11-18 15:17:37,514 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:37,514 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, 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] [2018-11-18 15:17:37,515 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:37,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:37,515 INFO L82 PathProgramCache]: Analyzing trace with hash 125266341, now seen corresponding path program 1 times [2018-11-18 15:17:37,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:37,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:37,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:37,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:37,516 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:37,596 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-18 15:17:37,597 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:17:37,597 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:17:37,597 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 149 with the following transitions: [2018-11-18 15:17:37,597 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [81], [83], [84], [87], [89], [92], [99], [102], [104], [108], [114], [118], [122], [128], [130], [136], [138], [141], [156], [157], [160], [161], [162], [164], [169], [172], [173], [174], [175], [177], [180], [184], [185], [220], [221], [224], [227], [231], [237], [240], [244], [245], [249], [252], [254], [257], [267], [275], [278], [279], [280], [281], [282], [284], [285], [286], [287], [288], [289], [290], [291], [292], [300], [301], [304], [306], [307], [308], [309], [310], [311], [314], [315], [320], [321], [324], [325], [326], [327], [328], [329], [334], [335], [336], [337], [338], [339], [340], [341], [342], [344], [345], [346], [347] [2018-11-18 15:17:37,600 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:17:37,600 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:17:38,895 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 15:17:38,895 INFO L272 AbstractInterpreter]: Visited 119 different actions 842 times. Merged at 17 different actions 69 times. Never widened. Performed 32027 root evaluator evaluations with a maximum evaluation depth of 3. Performed 32027 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 3 different actions. Largest state had 132 variables. [2018-11-18 15:17:38,897 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:38,898 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 15:17:38,898 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:17:38,898 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4ba450a5-409c-4d88-9e61-8a6795973c09/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 15:17:38,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:38,905 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 15:17:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:39,007 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:17:39,042 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-18 15:17:39,042 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:17:39,377 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-18 15:17:39,404 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 15:17:39,404 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-11-18 15:17:39,404 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:39,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:17:39,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:17:39,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:17:39,405 INFO L87 Difference]: Start difference. First operand 985 states and 1144 transitions. Second operand 6 states. [2018-11-18 15:17:39,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:39,501 INFO L93 Difference]: Finished difference Result 1992 states and 2382 transitions. [2018-11-18 15:17:39,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:17:39,502 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 148 [2018-11-18 15:17:39,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:39,506 INFO L225 Difference]: With dead ends: 1992 [2018-11-18 15:17:39,506 INFO L226 Difference]: Without dead ends: 1031 [2018-11-18 15:17:39,509 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 293 SyntacticMatches, 4 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 15:17:39,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2018-11-18 15:17:39,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1015. [2018-11-18 15:17:39,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2018-11-18 15:17:39,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1175 transitions. [2018-11-18 15:17:39,553 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1175 transitions. Word has length 148 [2018-11-18 15:17:39,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:39,554 INFO L480 AbstractCegarLoop]: Abstraction has 1015 states and 1175 transitions. [2018-11-18 15:17:39,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:17:39,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1175 transitions. [2018-11-18 15:17:39,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-11-18 15:17:39,557 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:39,557 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:17:39,557 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:39,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:39,557 INFO L82 PathProgramCache]: Analyzing trace with hash 493488813, now seen corresponding path program 1 times [2018-11-18 15:17:39,557 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:39,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:39,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:39,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:39,558 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:39,671 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-18 15:17:39,672 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:17:39,672 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:17:39,672 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2018-11-18 15:17:39,672 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [81], [83], [84], [87], [89], [92], [99], [102], [104], [108], [114], [118], [122], [125], [128], [130], [136], [138], [141], [156], [157], [160], [161], [162], [164], [169], [172], [173], [174], [175], [177], [182], [184], [185], [220], [221], [224], [227], [231], [237], [240], [244], [245], [249], [252], [254], [257], [267], [270], [274], [275], [278], [279], [280], [281], [282], [284], [285], [286], [287], [288], [289], [290], [291], [292], [300], [301], [304], [306], [307], [308], [309], [310], [311], [314], [315], [316], [317], [320], [321], [324], [325], [326], [327], [328], [329], [334], [335], [336], [337], [338], [339], [340], [341], [342], [344], [345], [346], [347] [2018-11-18 15:17:39,676 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:17:39,676 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:17:39,953 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 15:17:39,953 INFO L272 AbstractInterpreter]: Visited 61 different actions 88 times. Merged at 5 different actions 5 times. Never widened. Performed 5164 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5164 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 15:17:39,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:39,974 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 15:17:40,174 INFO L227 lantSequenceWeakener]: Weakened 71 states. On average, predicates are now at 96.43% of their original sizes. [2018-11-18 15:17:40,175 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 15:17:40,312 INFO L415 sIntCurrentIteration]: We unified 151 AI predicates to 151 [2018-11-18 15:17:40,313 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 15:17:40,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 15:17:40,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [8] total 18 [2018-11-18 15:17:40,313 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:40,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 15:17:40,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 15:17:40,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-11-18 15:17:40,314 INFO L87 Difference]: Start difference. First operand 1015 states and 1175 transitions. Second operand 12 states. [2018-11-18 15:17:41,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:41,983 INFO L93 Difference]: Finished difference Result 2003 states and 2334 transitions. [2018-11-18 15:17:41,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 15:17:41,984 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 152 [2018-11-18 15:17:41,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:41,987 INFO L225 Difference]: With dead ends: 2003 [2018-11-18 15:17:41,987 INFO L226 Difference]: Without dead ends: 1012 [2018-11-18 15:17:41,989 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 155 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-11-18 15:17:41,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2018-11-18 15:17:42,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 995. [2018-11-18 15:17:42,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 995 states. [2018-11-18 15:17:42,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1147 transitions. [2018-11-18 15:17:42,026 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1147 transitions. Word has length 152 [2018-11-18 15:17:42,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:42,026 INFO L480 AbstractCegarLoop]: Abstraction has 995 states and 1147 transitions. [2018-11-18 15:17:42,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 15:17:42,026 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1147 transitions. [2018-11-18 15:17:42,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-11-18 15:17:42,029 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:42,029 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:17:42,029 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:42,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:42,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1969631288, now seen corresponding path program 1 times [2018-11-18 15:17:42,030 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:42,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:42,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:42,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:42,031 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:42,269 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 15:17:42,269 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:17:42,269 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:17:42,269 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 161 with the following transitions: [2018-11-18 15:17:42,269 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [82], [83], [84], [87], [89], [92], [99], [102], [104], [108], [114], [118], [122], [125], [130], [133], [136], [138], [141], [156], [157], [160], [161], [162], [164], [169], [172], [173], [174], [175], [177], [182], [184], [185], [190], [192], [220], [221], [224], [227], [231], [237], [240], [244], [245], [249], [252], [254], [257], [267], [270], [274], [275], [278], [279], [280], [281], [282], [284], [285], [286], [287], [288], [289], [290], [291], [292], [300], [301], [304], [306], [307], [308], [309], [310], [311], [314], [315], [316], [317], [318], [319], [320], [321], [324], [325], [326], [327], [328], [329], [334], [335], [336], [337], [338], [339], [340], [341], [342], [344], [345], [346], [347] [2018-11-18 15:17:42,271 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:17:42,271 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:17:43,688 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 15:17:43,688 INFO L272 AbstractInterpreter]: Visited 128 different actions 724 times. Merged at 20 different actions 63 times. Never widened. Performed 38438 root evaluator evaluations with a maximum evaluation depth of 3. Performed 38438 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 10 fixpoints after 4 different actions. Largest state had 132 variables. [2018-11-18 15:17:43,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:43,689 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 15:17:43,689 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:17:43,689 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4ba450a5-409c-4d88-9e61-8a6795973c09/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 15:17:43,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:43,695 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 15:17:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:43,767 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:17:43,983 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 15:17:43,983 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:17:44,886 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 15:17:44,902 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 15:17:44,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-11-18 15:17:44,903 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:44,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 15:17:44,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 15:17:44,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-18 15:17:44,903 INFO L87 Difference]: Start difference. First operand 995 states and 1147 transitions. Second operand 8 states. [2018-11-18 15:17:45,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:45,377 INFO L93 Difference]: Finished difference Result 2330 states and 2739 transitions. [2018-11-18 15:17:45,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 15:17:45,378 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 160 [2018-11-18 15:17:45,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:45,382 INFO L225 Difference]: With dead ends: 2330 [2018-11-18 15:17:45,382 INFO L226 Difference]: Without dead ends: 1618 [2018-11-18 15:17:45,384 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 301 SyntacticMatches, 9 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-18 15:17:45,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2018-11-18 15:17:45,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 1615. [2018-11-18 15:17:45,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1615 states. [2018-11-18 15:17:45,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 1856 transitions. [2018-11-18 15:17:45,425 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 1856 transitions. Word has length 160 [2018-11-18 15:17:45,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:45,426 INFO L480 AbstractCegarLoop]: Abstraction has 1615 states and 1856 transitions. [2018-11-18 15:17:45,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 15:17:45,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 1856 transitions. [2018-11-18 15:17:45,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-11-18 15:17:45,428 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:45,428 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:17:45,428 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:45,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:45,428 INFO L82 PathProgramCache]: Analyzing trace with hash 114457966, now seen corresponding path program 1 times [2018-11-18 15:17:45,428 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:45,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:45,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:45,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:45,429 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:45,522 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-18 15:17:45,522 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:17:45,522 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 15:17:45,522 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:45,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 15:17:45,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 15:17:45,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 15:17:45,523 INFO L87 Difference]: Start difference. First operand 1615 states and 1856 transitions. Second operand 9 states. [2018-11-18 15:17:46,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:46,148 INFO L93 Difference]: Finished difference Result 2826 states and 3275 transitions. [2018-11-18 15:17:46,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 15:17:46,148 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2018-11-18 15:17:46,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:46,152 INFO L225 Difference]: With dead ends: 2826 [2018-11-18 15:17:46,152 INFO L226 Difference]: Without dead ends: 1494 [2018-11-18 15:17:46,155 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2018-11-18 15:17:46,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2018-11-18 15:17:46,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1483. [2018-11-18 15:17:46,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1483 states. [2018-11-18 15:17:46,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 1684 transitions. [2018-11-18 15:17:46,191 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 1684 transitions. Word has length 152 [2018-11-18 15:17:46,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:46,192 INFO L480 AbstractCegarLoop]: Abstraction has 1483 states and 1684 transitions. [2018-11-18 15:17:46,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 15:17:46,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 1684 transitions. [2018-11-18 15:17:46,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-11-18 15:17:46,194 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:46,194 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:17:46,194 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:46,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:46,194 INFO L82 PathProgramCache]: Analyzing trace with hash 997693362, now seen corresponding path program 1 times [2018-11-18 15:17:46,194 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:46,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:46,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:46,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:46,195 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:46,258 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-18 15:17:46,258 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:17:46,258 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 15:17:46,258 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:46,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:17:46,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:17:46,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:17:46,259 INFO L87 Difference]: Start difference. First operand 1483 states and 1684 transitions. Second operand 6 states. [2018-11-18 15:17:46,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:46,391 INFO L93 Difference]: Finished difference Result 1494 states and 1696 transitions. [2018-11-18 15:17:46,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 15:17:46,392 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2018-11-18 15:17:46,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:46,396 INFO L225 Difference]: With dead ends: 1494 [2018-11-18 15:17:46,396 INFO L226 Difference]: Without dead ends: 1491 [2018-11-18 15:17:46,397 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 15:17:46,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2018-11-18 15:17:46,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1483. [2018-11-18 15:17:46,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1483 states. [2018-11-18 15:17:46,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 1682 transitions. [2018-11-18 15:17:46,431 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 1682 transitions. Word has length 156 [2018-11-18 15:17:46,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:46,432 INFO L480 AbstractCegarLoop]: Abstraction has 1483 states and 1682 transitions. [2018-11-18 15:17:46,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:17:46,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 1682 transitions. [2018-11-18 15:17:46,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-11-18 15:17:46,434 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:46,434 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:17:46,434 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:46,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:46,435 INFO L82 PathProgramCache]: Analyzing trace with hash 49806472, now seen corresponding path program 1 times [2018-11-18 15:17:46,435 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:46,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:46,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:46,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:46,435 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:46,516 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-18 15:17:46,516 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:17:46,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 15:17:46,516 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:46,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 15:17:46,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 15:17:46,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 15:17:46,517 INFO L87 Difference]: Start difference. First operand 1483 states and 1682 transitions. Second operand 9 states. [2018-11-18 15:17:46,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:46,572 INFO L93 Difference]: Finished difference Result 2154 states and 2464 transitions. [2018-11-18 15:17:46,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 15:17:46,572 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 174 [2018-11-18 15:17:46,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:46,576 INFO L225 Difference]: With dead ends: 2154 [2018-11-18 15:17:46,576 INFO L226 Difference]: Without dead ends: 1499 [2018-11-18 15:17:46,578 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:17:46,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2018-11-18 15:17:46,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1493. [2018-11-18 15:17:46,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1493 states. [2018-11-18 15:17:46,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 1692 transitions. [2018-11-18 15:17:46,616 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 1692 transitions. Word has length 174 [2018-11-18 15:17:46,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:46,616 INFO L480 AbstractCegarLoop]: Abstraction has 1493 states and 1692 transitions. [2018-11-18 15:17:46,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 15:17:46,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 1692 transitions. [2018-11-18 15:17:46,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-11-18 15:17:46,619 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:46,619 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:17:46,619 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:46,619 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:46,619 INFO L82 PathProgramCache]: Analyzing trace with hash -2001177526, now seen corresponding path program 1 times [2018-11-18 15:17:46,619 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:46,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:46,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:46,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:46,620 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:46,717 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-18 15:17:46,718 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:17:46,718 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:17:46,718 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 175 with the following transitions: [2018-11-18 15:17:46,718 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [56], [57], [58], [60], [63], [67], [68], [69], [72], [74], [75], [78], [82], [83], [84], [87], [89], [95], [99], [102], [103], [104], [108], [114], [118], [122], [125], [128], [130], [136], [138], [141], [156], [157], [158], [159], [160], [161], [162], [164], [169], [172], [173], [174], [175], [177], [182], [184], [185], [220], [221], [224], [227], [231], [237], [240], [244], [245], [249], [252], [254], [257], [264], [267], [270], [274], [275], [278], [279], [280], [281], [282], [284], [285], [286], [287], [288], [289], [290], [291], [292], [294], [295], [298], [299], [300], [301], [302], [303], [304], [306], [307], [308], [309], [312], [313], [314], [315], [316], [317], [320], [321], [324], [325], [326], [327], [328], [329], [334], [335], [336], [337], [338], [339], [340], [341], [342], [344], [345], [346], [347], [350], [351] [2018-11-18 15:17:46,720 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:17:46,720 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:17:47,388 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 15:17:47,388 INFO L272 AbstractInterpreter]: Visited 142 different actions 682 times. Merged at 16 different actions 44 times. Never widened. Performed 21272 root evaluator evaluations with a maximum evaluation depth of 5. Performed 21272 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 132 variables. [2018-11-18 15:17:47,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:47,405 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 15:17:47,405 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:17:47,405 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4ba450a5-409c-4d88-9e61-8a6795973c09/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 15:17:47,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:47,450 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 15:17:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:47,509 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:17:47,570 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:17:47,570 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:17:47,748 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-18 15:17:47,763 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 15:17:47,764 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-11-18 15:17:47,764 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 15:17:47,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 15:17:47,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 15:17:47,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-11-18 15:17:47,765 INFO L87 Difference]: Start difference. First operand 1493 states and 1692 transitions. Second operand 14 states. [2018-11-18 15:17:48,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:48,775 INFO L93 Difference]: Finished difference Result 2695 states and 3391 transitions. [2018-11-18 15:17:48,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 15:17:48,776 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 174 [2018-11-18 15:17:48,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:48,784 INFO L225 Difference]: With dead ends: 2695 [2018-11-18 15:17:48,784 INFO L226 Difference]: Without dead ends: 2030 [2018-11-18 15:17:48,787 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 342 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 15:17:48,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2030 states. [2018-11-18 15:17:48,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2030 to 1747. [2018-11-18 15:17:48,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1747 states. [2018-11-18 15:17:48,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1747 states to 1747 states and 1996 transitions. [2018-11-18 15:17:48,873 INFO L78 Accepts]: Start accepts. Automaton has 1747 states and 1996 transitions. Word has length 174 [2018-11-18 15:17:48,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:48,874 INFO L480 AbstractCegarLoop]: Abstraction has 1747 states and 1996 transitions. [2018-11-18 15:17:48,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 15:17:48,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1747 states and 1996 transitions. [2018-11-18 15:17:48,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-11-18 15:17:48,879 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:48,879 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:17:48,879 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:48,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:48,880 INFO L82 PathProgramCache]: Analyzing trace with hash -917363120, now seen corresponding path program 1 times [2018-11-18 15:17:48,880 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:48,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:48,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:48,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:48,881 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:48,977 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 53 proven. 6 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-18 15:17:48,978 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:17:48,978 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:17:48,978 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 235 with the following transitions: [2018-11-18 15:17:48,979 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [56], [57], [58], [60], [63], [67], [68], [69], [72], [74], [75], [78], [81], [83], [84], [87], [89], [95], [99], [102], [103], [104], [108], [114], [118], [122], [128], [130], [133], [136], [138], [141], [156], [157], [158], [159], [160], [161], [162], [164], [169], [172], [173], [174], [175], [177], [180], [182], [184], [185], [188], [190], [192], [220], [221], [224], [227], [231], [237], [240], [244], [245], [249], [252], [254], [257], [260], [264], [267], [275], [278], [279], [280], [281], [282], [284], [285], [286], [287], [288], [289], [290], [291], [292], [294], [295], [298], [299], [300], [301], [302], [303], [304], [306], [307], [308], [309], [312], [313], [314], [315], [318], [319], [320], [321], [324], [325], [326], [327], [328], [329], [334], [335], [336], [337], [338], [339], [340], [341], [342], [344], [345], [346], [347], [348], [349], [350], [351] [2018-11-18 15:17:48,980 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:17:48,981 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:17:51,117 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 15:17:51,118 INFO L272 AbstractInterpreter]: Visited 147 different actions 1888 times. Merged at 26 different actions 245 times. Widened at 1 different actions 1 times. Performed 65241 root evaluator evaluations with a maximum evaluation depth of 5. Performed 65241 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 40 fixpoints after 4 different actions. Largest state had 132 variables. [2018-11-18 15:17:51,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:51,121 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 15:17:51,121 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:17:51,121 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4ba450a5-409c-4d88-9e61-8a6795973c09/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 15:17:51,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:51,127 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 15:17:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:51,189 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:17:51,265 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-11-18 15:17:51,265 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:17:51,484 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 53 proven. 6 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-18 15:17:51,500 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 15:17:51,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-11-18 15:17:51,501 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:51,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:17:51,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:17:51,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-18 15:17:51,502 INFO L87 Difference]: Start difference. First operand 1747 states and 1996 transitions. Second operand 5 states. [2018-11-18 15:17:51,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:51,543 INFO L93 Difference]: Finished difference Result 2824 states and 3295 transitions. [2018-11-18 15:17:51,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 15:17:51,543 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 234 [2018-11-18 15:17:51,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:51,547 INFO L225 Difference]: With dead ends: 2824 [2018-11-18 15:17:51,547 INFO L226 Difference]: Without dead ends: 1354 [2018-11-18 15:17:51,550 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 465 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 15:17:51,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2018-11-18 15:17:51,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1354. [2018-11-18 15:17:51,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1354 states. [2018-11-18 15:17:51,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 1552 transitions. [2018-11-18 15:17:51,590 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 1552 transitions. Word has length 234 [2018-11-18 15:17:51,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:51,591 INFO L480 AbstractCegarLoop]: Abstraction has 1354 states and 1552 transitions. [2018-11-18 15:17:51,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:17:51,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 1552 transitions. [2018-11-18 15:17:51,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-11-18 15:17:51,594 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:51,595 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:17:51,595 INFO L423 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:51,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:51,595 INFO L82 PathProgramCache]: Analyzing trace with hash 866258493, now seen corresponding path program 2 times [2018-11-18 15:17:51,595 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:51,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:51,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:51,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:51,596 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:51,692 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 47 proven. 14 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-11-18 15:17:51,693 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:17:51,693 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:17:51,693 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-18 15:17:51,693 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-18 15:17:51,693 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:17:51,693 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4ba450a5-409c-4d88-9e61-8a6795973c09/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 15:17:51,701 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 15:17:51,701 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-18 15:17:51,827 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-18 15:17:51,828 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 15:17:51,833 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:17:51,931 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-18 15:17:51,931 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:17:52,216 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 47 proven. 14 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-11-18 15:17:52,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 15:17:52,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8] total 15 [2018-11-18 15:17:52,234 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:52,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 15:17:52,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 15:17:52,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-11-18 15:17:52,235 INFO L87 Difference]: Start difference. First operand 1354 states and 1552 transitions. Second operand 9 states. [2018-11-18 15:17:53,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:53,069 INFO L93 Difference]: Finished difference Result 1972 states and 2286 transitions. [2018-11-18 15:17:53,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 15:17:53,070 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 244 [2018-11-18 15:17:53,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:53,071 INFO L225 Difference]: With dead ends: 1972 [2018-11-18 15:17:53,071 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:17:53,074 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 481 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2018-11-18 15:17:53,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:17:53,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:17:53,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:17:53,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:17:53,075 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 244 [2018-11-18 15:17:53,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:53,075 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:17:53,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 15:17:53,075 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:17:53,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:17:53,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:17:53,190 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,192 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,194 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,196 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,199 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,199 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,202 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,203 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,297 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,303 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,303 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,307 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,307 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,311 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,311 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,318 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,319 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,321 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,322 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,323 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,324 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,325 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,357 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,358 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,360 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,361 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,362 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,362 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,363 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,364 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,365 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,366 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,366 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,367 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,476 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,476 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,480 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,480 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,565 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,566 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:53,745 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 19 [2018-11-18 15:17:53,905 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 29 [2018-11-18 15:17:54,381 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 33 [2018-11-18 15:17:54,587 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 31 [2018-11-18 15:17:54,919 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 43 [2018-11-18 15:17:55,411 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 28 [2018-11-18 15:17:56,228 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 42 [2018-11-18 15:17:56,331 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 31 [2018-11-18 15:17:56,333 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 70 76) the Hoare annotation is: true [2018-11-18 15:17:56,333 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 70 76) no Hoare annotation was computed. [2018-11-18 15:17:56,333 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 77 85) no Hoare annotation was computed. [2018-11-18 15:17:56,333 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 77 85) the Hoare annotation is: true [2018-11-18 15:17:56,334 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 77 85) no Hoare annotation was computed. [2018-11-18 15:17:56,334 INFO L428 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 510 534) the Hoare annotation is: true [2018-11-18 15:17:56,334 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 510 534) no Hoare annotation was computed. [2018-11-18 15:17:56,334 INFO L421 ceAbstractionStarter]: At program point L524(line 524) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or (< ~waterLevel~0 2) .cse2 .cse3))) [2018-11-18 15:17:56,334 INFO L425 ceAbstractionStarter]: For program point L522(lines 522 528) no Hoare annotation was computed. [2018-11-18 15:17:56,334 INFO L421 ceAbstractionStarter]: At program point L520(line 520) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or (< ~waterLevel~0 2) .cse2 .cse3))) [2018-11-18 15:17:56,334 INFO L425 ceAbstractionStarter]: For program point L520-1(line 520) no Hoare annotation was computed. [2018-11-18 15:17:56,334 INFO L425 ceAbstractionStarter]: For program point L518(lines 518 531) no Hoare annotation was computed. [2018-11-18 15:17:56,334 INFO L425 ceAbstractionStarter]: For program point L518-1(lines 510 534) no Hoare annotation was computed. [2018-11-18 15:17:56,334 INFO L428 ceAbstractionStarter]: At program point L516(line 516) the Hoare annotation is: true [2018-11-18 15:17:56,334 INFO L425 ceAbstractionStarter]: For program point L516-1(line 516) no Hoare annotation was computed. [2018-11-18 15:17:56,334 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 974 996) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:17:56,335 INFO L421 ceAbstractionStarter]: At program point L986(line 986) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~11 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:17:56,335 INFO L421 ceAbstractionStarter]: At program point L986-1(line 986) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~11 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:17:56,335 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 974 996) no Hoare annotation was computed. [2018-11-18 15:17:56,335 INFO L425 ceAbstractionStarter]: For program point L984(lines 984 991) no Hoare annotation was computed. [2018-11-18 15:17:56,335 INFO L425 ceAbstractionStarter]: For program point L984-1(lines 984 991) no Hoare annotation was computed. [2018-11-18 15:17:56,335 INFO L425 ceAbstractionStarter]: For program point L982(line 982) no Hoare annotation was computed. [2018-11-18 15:17:56,335 INFO L421 ceAbstractionStarter]: At program point L981(line 981) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:17:56,335 INFO L421 ceAbstractionStarter]: At program point L980(line 980) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:17:56,335 INFO L421 ceAbstractionStarter]: At program point L980-1(line 980) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:17:56,335 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 974 996) no Hoare annotation was computed. [2018-11-18 15:17:56,335 INFO L421 ceAbstractionStarter]: At program point L178(line 178) the Hoare annotation is: (let ((.cse3 (< ~methaneLevelCritical~0 1)) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse5 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (= |old(~pumpRunning~0)| 0) .cse1 .cse2) (or .cse3 .cse4 .cse5 .cse1 (not (= ~waterLevel~0 1))) (or .cse5 (or .cse3 .cse4 (< ~waterLevel~0 2) .cse1)) (or .cse0 .cse1 .cse2 .cse5))) [2018-11-18 15:17:56,335 INFO L425 ceAbstractionStarter]: For program point L178-1(lines 159 183) no Hoare annotation was computed. [2018-11-18 15:17:56,335 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 159 183) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~waterLevel~0 1))) (or .cse2 (or .cse0 .cse1 (< ~waterLevel~0 2) .cse3)) (or (< ~waterLevel~0 1) .cse3 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2018-11-18 15:17:56,336 INFO L421 ceAbstractionStarter]: At program point L173(line 173) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 15:17:56,336 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 159 183) no Hoare annotation was computed. [2018-11-18 15:17:56,336 INFO L421 ceAbstractionStarter]: At program point L169(line 169) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 .cse3) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2 .cse3))) [2018-11-18 15:17:56,336 INFO L425 ceAbstractionStarter]: For program point L167(lines 167 175) no Hoare annotation was computed. [2018-11-18 15:17:56,336 INFO L421 ceAbstractionStarter]: At program point L165(line 165) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse3))) [2018-11-18 15:17:56,336 INFO L425 ceAbstractionStarter]: For program point L165-1(line 165) no Hoare annotation was computed. [2018-11-18 15:17:56,336 INFO L425 ceAbstractionStarter]: For program point L163(lines 163 180) no Hoare annotation was computed. [2018-11-18 15:17:56,336 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 254 262) no Hoare annotation was computed. [2018-11-18 15:17:56,336 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 254 262) the Hoare annotation is: true [2018-11-18 15:17:56,336 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 254 262) no Hoare annotation was computed. [2018-11-18 15:17:56,336 INFO L428 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 318 336) the Hoare annotation is: true [2018-11-18 15:17:56,336 INFO L425 ceAbstractionStarter]: For program point L327(lines 327 331) no Hoare annotation was computed. [2018-11-18 15:17:56,336 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 318 336) no Hoare annotation was computed. [2018-11-18 15:17:56,337 INFO L428 ceAbstractionStarter]: At program point L325(line 325) the Hoare annotation is: true [2018-11-18 15:17:56,337 INFO L425 ceAbstractionStarter]: For program point L327-2(lines 327 331) no Hoare annotation was computed. [2018-11-18 15:17:56,337 INFO L425 ceAbstractionStarter]: For program point L325-1(line 325) no Hoare annotation was computed. [2018-11-18 15:17:56,337 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 318 336) no Hoare annotation was computed. [2018-11-18 15:17:56,337 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 63 69) no Hoare annotation was computed. [2018-11-18 15:17:56,337 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 63 69) the Hoare annotation is: true [2018-11-18 15:17:56,337 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 964 973) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:17:56,337 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 964 973) no Hoare annotation was computed. [2018-11-18 15:17:56,337 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 964 973) no Hoare annotation was computed. [2018-11-18 15:17:56,337 INFO L428 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 243 253) the Hoare annotation is: true [2018-11-18 15:17:56,337 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 243 253) no Hoare annotation was computed. [2018-11-18 15:17:56,337 INFO L428 ceAbstractionStarter]: At program point L248(line 248) the Hoare annotation is: true [2018-11-18 15:17:56,337 INFO L425 ceAbstractionStarter]: For program point L248-1(line 248) no Hoare annotation was computed. [2018-11-18 15:17:56,337 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 243 253) no Hoare annotation was computed. [2018-11-18 15:17:56,337 INFO L421 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 235 242) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (= |old(~pumpRunning~0)| 0)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 15:17:56,338 INFO L425 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 235 242) no Hoare annotation was computed. [2018-11-18 15:17:56,338 INFO L425 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 235 242) no Hoare annotation was computed. [2018-11-18 15:17:56,338 INFO L425 ceAbstractionStarter]: For program point L490(lines 490 496) no Hoare annotation was computed. [2018-11-18 15:17:56,338 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 486 499) no Hoare annotation was computed. [2018-11-18 15:17:56,338 INFO L428 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 486 499) the Hoare annotation is: true [2018-11-18 15:17:56,338 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 486 499) no Hoare annotation was computed. [2018-11-18 15:17:56,338 INFO L425 ceAbstractionStarter]: For program point L193(lines 193 201) no Hoare annotation was computed. [2018-11-18 15:17:56,338 INFO L421 ceAbstractionStarter]: At program point L191(line 191) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse2 (< ~waterLevel~0 1)) (.cse3 (not (= ~systemActive~0 1))) (.cse5 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse2 .cse3 .cse5) (or .cse2 .cse3 .cse5 .cse4))) [2018-11-18 15:17:56,338 INFO L425 ceAbstractionStarter]: For program point L191-1(line 191) no Hoare annotation was computed. [2018-11-18 15:17:56,338 INFO L425 ceAbstractionStarter]: For program point L189(lines 189 206) no Hoare annotation was computed. [2018-11-18 15:17:56,338 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 185 209) no Hoare annotation was computed. [2018-11-18 15:17:56,338 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 185 209) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2018-11-18 15:17:56,338 INFO L421 ceAbstractionStarter]: At program point L204(line 204) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (< ~waterLevel~0 1)) (.cse3 (not (= ~systemActive~0 1))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse3 (not (= ~waterLevel~0 1))) (or .cse5 (or .cse0 (< ~waterLevel~0 2) .cse3)) (or .cse1 .cse3 .cse4 .cse5))) [2018-11-18 15:17:56,339 INFO L425 ceAbstractionStarter]: For program point L204-1(lines 185 209) no Hoare annotation was computed. [2018-11-18 15:17:56,339 INFO L421 ceAbstractionStarter]: At program point L199(line 199) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 .cse2) (or (and (= processEnvironment_~tmp~2 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse0 .cse1 .cse2))) [2018-11-18 15:17:56,339 INFO L421 ceAbstractionStarter]: At program point L195(line 195) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (and (= processEnvironment_~tmp~2 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1 .cse2) (or .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 15:17:56,339 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 125 131) no Hoare annotation was computed. [2018-11-18 15:17:56,339 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 125 131) the Hoare annotation is: true [2018-11-18 15:17:56,339 INFO L425 ceAbstractionStarter]: For program point L353(lines 353 357) no Hoare annotation was computed. [2018-11-18 15:17:56,339 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 341 404) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:17:56,339 INFO L425 ceAbstractionStarter]: For program point L351-1(lines 351 396) no Hoare annotation was computed. [2018-11-18 15:17:56,339 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 341 404) no Hoare annotation was computed. [2018-11-18 15:17:56,339 INFO L421 ceAbstractionStarter]: At program point L397(lines 350 398) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:17:56,339 INFO L425 ceAbstractionStarter]: For program point L387(lines 387 391) no Hoare annotation was computed. [2018-11-18 15:17:56,339 INFO L421 ceAbstractionStarter]: At program point L387-2(lines 381 392) the Hoare annotation is: (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse4 (<= 2 ~waterLevel~0)) (.cse5 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse2 (<= 1 ~waterLevel~0)) (.cse3 (= test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and .cse4 .cse1 .cse3) (and .cse5 .cse4 .cse3) (not (= ~systemActive~0 1)) (and .cse5 .cse0 .cse2 .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 15:17:56,340 INFO L425 ceAbstractionStarter]: For program point L352(lines 351 396) no Hoare annotation was computed. [2018-11-18 15:17:56,340 INFO L425 ceAbstractionStarter]: For program point L381(lines 381 392) no Hoare annotation was computed. [2018-11-18 15:17:56,340 INFO L421 ceAbstractionStarter]: At program point L373(line 373) the Hoare annotation is: (let ((.cse3 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= 1 ~waterLevel~0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 .cse2) (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse3 (<= 2 ~waterLevel~0) .cse2) (and .cse3 .cse0 .cse1 .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 15:17:56,340 INFO L425 ceAbstractionStarter]: For program point L371(lines 371 377) no Hoare annotation was computed. [2018-11-18 15:17:56,340 INFO L425 ceAbstractionStarter]: For program point L371-1(lines 371 377) no Hoare annotation was computed. [2018-11-18 15:17:56,340 INFO L421 ceAbstractionStarter]: At program point L363(line 363) the Hoare annotation is: (let ((.cse3 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= 1 ~waterLevel~0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 .cse2) (and .cse3 (<= 2 ~waterLevel~0) .cse2) (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse3 .cse0 .cse1 .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 15:17:56,340 INFO L421 ceAbstractionStarter]: At program point L394(lines 351 396) the Hoare annotation is: (let ((.cse3 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= 1 ~waterLevel~0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse3 (<= 2 ~waterLevel~0) .cse2) (not (= ~systemActive~0 1)) (and .cse3 .cse0 .cse1 .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 15:17:56,340 INFO L425 ceAbstractionStarter]: For program point L361(lines 361 367) no Hoare annotation was computed. [2018-11-18 15:17:56,340 INFO L425 ceAbstractionStarter]: For program point L361-1(lines 361 367) no Hoare annotation was computed. [2018-11-18 15:17:56,340 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 341 404) no Hoare annotation was computed. [2018-11-18 15:17:56,340 INFO L421 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 210 217) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~methaneLevelCritical~0 0)) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)))) [2018-11-18 15:17:56,340 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 210 217) no Hoare annotation was computed. [2018-11-18 15:17:56,340 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 210 217) no Hoare annotation was computed. [2018-11-18 15:17:56,341 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 500 508) no Hoare annotation was computed. [2018-11-18 15:17:56,341 INFO L428 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 500 508) the Hoare annotation is: true [2018-11-18 15:17:56,341 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 500 508) no Hoare annotation was computed. [2018-11-18 15:17:56,341 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:17:56,341 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 15:17:56,341 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:17:56,341 INFO L425 ceAbstractionStarter]: For program point L225(lines 225 231) no Hoare annotation was computed. [2018-11-18 15:17:56,341 INFO L421 ceAbstractionStarter]: At program point L223(line 223) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 2)) (.cse3 (not (= ~systemActive~0 1))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse1 .cse2 .cse3 .cse0))) [2018-11-18 15:17:56,341 INFO L425 ceAbstractionStarter]: For program point L223-1(line 223) no Hoare annotation was computed. [2018-11-18 15:17:56,341 INFO L425 ceAbstractionStarter]: For program point activatePumpEXIT(lines 218 234) no Hoare annotation was computed. [2018-11-18 15:17:56,341 INFO L421 ceAbstractionStarter]: At program point activatePumpENTRY(lines 218 234) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 2)) (.cse3 (not (= ~systemActive~0 1))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse1 .cse2 .cse3 .cse0))) [2018-11-18 15:17:56,342 INFO L421 ceAbstractionStarter]: At program point L229(line 229) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2018-11-18 15:17:56,342 INFO L425 ceAbstractionStarter]: For program point L229-1(lines 218 234) no Hoare annotation was computed. [2018-11-18 15:17:56,342 INFO L428 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 477 485) the Hoare annotation is: true [2018-11-18 15:17:56,342 INFO L425 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 477 485) no Hoare annotation was computed. [2018-11-18 15:17:56,342 INFO L425 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 477 485) no Hoare annotation was computed. [2018-11-18 15:17:56,342 INFO L425 ceAbstractionStarter]: For program point L306-1(line 306) no Hoare annotation was computed. [2018-11-18 15:17:56,342 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 299 317) no Hoare annotation was computed. [2018-11-18 15:17:56,342 INFO L428 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 299 317) the Hoare annotation is: true [2018-11-18 15:17:56,342 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 299 317) no Hoare annotation was computed. [2018-11-18 15:17:56,342 INFO L425 ceAbstractionStarter]: For program point L308(lines 308 312) no Hoare annotation was computed. [2018-11-18 15:17:56,342 INFO L428 ceAbstractionStarter]: At program point L306(line 306) the Hoare annotation is: true [2018-11-18 15:17:56,342 INFO L425 ceAbstractionStarter]: For program point L308-2(lines 308 312) no Hoare annotation was computed. [2018-11-18 15:17:56,343 INFO L421 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 433 444) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse3 (= 0 ~methaneLevelCritical~0))) (and (or (< |old(~methaneLevelCritical~0)| 1) .cse0 (< ~waterLevel~0 1) .cse1 (<= 1 ~methaneLevelCritical~0)) (or (or (< ~waterLevel~0 2) .cse1 .cse2) .cse3) (or .cse0 .cse1 (not (= ~waterLevel~0 1)) .cse2 .cse3))) [2018-11-18 15:17:56,343 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 433 444) no Hoare annotation was computed. [2018-11-18 15:17:56,343 INFO L425 ceAbstractionStarter]: For program point L437-1(lines 433 444) no Hoare annotation was computed. [2018-11-18 15:17:56,343 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 903 932) no Hoare annotation was computed. [2018-11-18 15:17:56,343 INFO L425 ceAbstractionStarter]: For program point L917(lines 917 921) no Hoare annotation was computed. [2018-11-18 15:17:56,343 INFO L428 ceAbstractionStarter]: At program point L917-1(lines 917 921) the Hoare annotation is: true [2018-11-18 15:17:56,343 INFO L425 ceAbstractionStarter]: For program point L913-1(lines 913 927) no Hoare annotation was computed. [2018-11-18 15:17:56,343 INFO L428 ceAbstractionStarter]: At program point L913-3(lines 913 927) the Hoare annotation is: true [2018-11-18 15:17:56,343 INFO L428 ceAbstractionStarter]: At program point L909(line 909) the Hoare annotation is: true [2018-11-18 15:17:56,343 INFO L425 ceAbstractionStarter]: For program point L909-1(line 909) no Hoare annotation was computed. [2018-11-18 15:17:56,343 INFO L428 ceAbstractionStarter]: At program point L928(lines 903 932) the Hoare annotation is: true [2018-11-18 15:17:56,343 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 903 932) the Hoare annotation is: true [2018-11-18 15:17:56,343 INFO L425 ceAbstractionStarter]: For program point L924(line 924) no Hoare annotation was computed. [2018-11-18 15:17:56,343 INFO L425 ceAbstractionStarter]: For program point L914(line 914) no Hoare annotation was computed. [2018-11-18 15:17:56,344 INFO L428 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 445 453) the Hoare annotation is: true [2018-11-18 15:17:56,344 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 445 453) no Hoare annotation was computed. [2018-11-18 15:17:56,344 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 445 453) no Hoare annotation was computed. [2018-11-18 15:17:56,344 INFO L421 ceAbstractionStarter]: At program point L114(line 114) the Hoare annotation is: (let ((.cse7 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse11 (+ ~waterLevel~0 1))) (let ((.cse6 (= 0 ~pumpRunning~0)) (.cse3 (< |old(~waterLevel~0)| 2)) (.cse0 (<= .cse11 |old(~waterLevel~0)|)) (.cse1 (<= |old(~waterLevel~0)| .cse11)) (.cse8 (< ~methaneLevelCritical~0 1)) (.cse9 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not (= ~systemActive~0 1))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse10 (and .cse7 .cse2))) (and (or (and .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (and .cse6 .cse2)) (or (and .cse6 .cse7 .cse2) (or .cse8 .cse3 .cse4) (and .cse0 (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse2)) (or .cse8 .cse9 .cse10 .cse4 (not (= |old(~waterLevel~0)| 1))) (or .cse9 (< |old(~waterLevel~0)| 1) .cse4 .cse5 .cse10)))) [2018-11-18 15:17:56,344 INFO L421 ceAbstractionStarter]: At program point L112(lines 112 118) the Hoare annotation is: (let ((.cse6 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse10 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse11 (+ ~waterLevel~0 1))) (let ((.cse7 (< ~methaneLevelCritical~0 1)) (.cse0 (< |old(~waterLevel~0)| 2)) (.cse3 (<= .cse11 |old(~waterLevel~0)|)) (.cse5 (<= |old(~waterLevel~0)| .cse11)) (.cse4 (= 0 ~pumpRunning~0)) (.cse8 (not (= 0 |old(~pumpRunning~0)|))) (.cse9 (and .cse6 .cse10)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or (or .cse0 .cse1 .cse2) (and .cse3 (not (= |old(~pumpRunning~0)| 0)) .cse4 .cse5) .cse6) (or .cse7 .cse8 (< |old(~waterLevel~0)| 1) .cse1 .cse9) (or (or .cse7 .cse0 .cse1) (and .cse3 .cse4 .cse5) (and .cse4 .cse10)) (or .cse8 .cse9 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2)))) [2018-11-18 15:17:56,344 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 101 124) the Hoare annotation is: (let ((.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse4 (< ~methaneLevelCritical~0 1)) (.cse0 (< |old(~waterLevel~0)| 2)) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or (or .cse0 .cse1 .cse2) .cse3) (or .cse4 .cse5 .cse3 .cse1 (not (= |old(~waterLevel~0)| 1))) (or .cse5 (< |old(~waterLevel~0)| 1) .cse1 .cse2 .cse3) (or (or .cse4 .cse0 .cse1) .cse3))) [2018-11-18 15:17:56,344 INFO L421 ceAbstractionStarter]: At program point L107(line 107) the Hoare annotation is: (let ((.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (< |old(~waterLevel~0)| 1)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse4 (< ~methaneLevelCritical~0 1)) (.cse0 (< |old(~waterLevel~0)| 2)) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or (or .cse0 .cse1 .cse2) .cse3) (or .cse4 .cse5 .cse6 .cse1) (or .cse5 .cse6 .cse1 .cse2) (or (or .cse4 .cse0 .cse1) .cse3))) [2018-11-18 15:17:56,345 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 101 124) no Hoare annotation was computed. [2018-11-18 15:17:56,345 INFO L425 ceAbstractionStarter]: For program point L105(lines 104 123) no Hoare annotation was computed. [2018-11-18 15:17:56,345 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 101 124) no Hoare annotation was computed. [2018-11-18 15:17:56,345 INFO L421 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 409 420) the Hoare annotation is: (let ((.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) .cse3) (or .cse3 (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)))))) [2018-11-18 15:17:56,345 INFO L425 ceAbstractionStarter]: For program point L413-1(lines 409 420) no Hoare annotation was computed. [2018-11-18 15:17:56,345 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 409 420) no Hoare annotation was computed. [2018-11-18 15:17:56,345 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 957 963) no Hoare annotation was computed. [2018-11-18 15:17:56,345 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 957 963) the Hoare annotation is: true [2018-11-18 15:17:56,345 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:17:56,345 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-11-18 15:17:56,345 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:17:56,345 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:17:56,346 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 133 157) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~waterLevel~0 1))) (or .cse2 (or .cse0 .cse1 (< ~waterLevel~0 2) .cse3)) (or .cse1 (< ~waterLevel~0 1) .cse3 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2018-11-18 15:17:56,346 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 133 157) no Hoare annotation was computed. [2018-11-18 15:17:56,346 INFO L421 ceAbstractionStarter]: At program point L152(line 152) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 15:17:56,346 INFO L425 ceAbstractionStarter]: For program point L152-1(lines 133 157) no Hoare annotation was computed. [2018-11-18 15:17:56,346 INFO L421 ceAbstractionStarter]: At program point L147(line 147) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse2 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 (< ~waterLevel~0 1) .cse1 .cse2) (or (or .cse0 (< ~waterLevel~0 2) .cse1 .cse3) .cse2) (or .cse0 .cse1 (not (= ~waterLevel~0 1)) .cse3 .cse2))) [2018-11-18 15:17:56,346 INFO L421 ceAbstractionStarter]: At program point L143(line 143) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 (< ~waterLevel~0 1) .cse1 (and (<= 2 ~waterLevel~0) .cse2)) (or .cse0 .cse1 (not (= ~waterLevel~0 1)) .cse3) (or .cse2 (or .cse0 (< ~waterLevel~0 2) .cse1 .cse3)))) [2018-11-18 15:17:56,346 INFO L425 ceAbstractionStarter]: For program point L141(lines 141 149) no Hoare annotation was computed. [2018-11-18 15:17:56,346 INFO L421 ceAbstractionStarter]: At program point L139(line 139) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~waterLevel~0 1))) (or .cse2 (or .cse0 .cse1 (< ~waterLevel~0 2) .cse3)) (or .cse1 (< ~waterLevel~0 1) .cse3 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2018-11-18 15:17:56,346 INFO L425 ceAbstractionStarter]: For program point L139-1(line 139) no Hoare annotation was computed. [2018-11-18 15:17:56,347 INFO L425 ceAbstractionStarter]: For program point L137(lines 137 154) no Hoare annotation was computed. [2018-11-18 15:17:56,347 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 421 432) no Hoare annotation was computed. [2018-11-18 15:17:56,347 INFO L425 ceAbstractionStarter]: For program point L425-1(lines 421 432) no Hoare annotation was computed. [2018-11-18 15:17:56,347 INFO L421 ceAbstractionStarter]: At program point waterRiseENTRY(lines 421 432) the Hoare annotation is: (let ((.cse4 (not (= ~systemActive~0 1)))) (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< |old(~waterLevel~0)| 1)) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (or (not (= 0 ~pumpRunning~0)) .cse4))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 (< |old(~waterLevel~0)| 2) .cse1 .cse3) (or (< ~methaneLevelCritical~0 1) .cse0 .cse3 .cse2)))) [2018-11-18 15:17:56,347 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 40 47) no Hoare annotation was computed. [2018-11-18 15:17:56,347 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2018-11-18 15:17:56,347 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2018-11-18 15:17:56,347 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2018-11-18 15:17:56,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:17:56 BoogieIcfgContainer [2018-11-18 15:17:56,362 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:17:56,363 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:17:56,363 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:17:56,363 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:17:56,363 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:17:31" (3/4) ... [2018-11-18 15:17:56,366 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:17:56,371 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-18 15:17:56,371 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-18 15:17:56,371 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-18 15:17:56,371 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 15:17:56,371 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-11-18 15:17:56,371 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-18 15:17:56,372 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-18 15:17:56,372 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-18 15:17:56,372 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-18 15:17:56,372 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-18 15:17:56,372 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-18 15:17:56,372 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-18 15:17:56,372 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-18 15:17:56,372 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 15:17:56,372 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-18 15:17:56,372 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-11-18 15:17:56,372 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-18 15:17:56,372 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 15:17:56,372 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-18 15:17:56,373 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-18 15:17:56,373 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-18 15:17:56,373 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 15:17:56,373 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 15:17:56,373 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-18 15:17:56,373 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 15:17:56,373 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-18 15:17:56,373 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-18 15:17:56,373 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 15:17:56,374 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 15:17:56,374 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-18 15:17:56,379 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2018-11-18 15:17:56,379 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 15:17:56,379 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 15:17:56,396 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((0 == pumpRunning && 1 <= methaneLevelCritical) && 1 <= waterLevel) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || ((0 == methaneLevelCritical && 2 <= waterLevel) && splverifierCounter == 0)) || !(systemActive == 1)) || (((0 == methaneLevelCritical && 0 == pumpRunning) && 1 <= waterLevel) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 15:17:56,396 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 15:17:56,432 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4ba450a5-409c-4d88-9e61-8a6795973c09/bin-2019/utaipan/witness.graphml [2018-11-18 15:17:56,432 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:17:56,433 INFO L168 Benchmark]: Toolchain (without parser) took 26167.60 ms. Allocated memory was 1.0 GB in the beginning and 2.7 GB in the end (delta: 1.6 GB). Free memory was 955.4 MB in the beginning and 2.0 GB in the end (delta: -1.1 GB). Peak memory consumption was 555.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:17:56,434 INFO L168 Benchmark]: CDTParser took 0.13 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 15:17:56,434 INFO L168 Benchmark]: CACSL2BoogieTranslator took 402.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -159.2 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:17:56,434 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.23 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 15:17:56,434 INFO L168 Benchmark]: Boogie Preprocessor took 34.21 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 15:17:56,434 INFO L168 Benchmark]: RCFGBuilder took 493.65 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: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:17:56,435 INFO L168 Benchmark]: TraceAbstraction took 25138.37 ms. Allocated memory was 1.2 GB in the beginning and 2.7 GB in the end (delta: 1.5 GB). Free memory was 1.1 GB in the beginning and 2.0 GB in the end (delta: -987.1 MB). Peak memory consumption was 1.9 GB. Max. memory is 11.5 GB. [2018-11-18 15:17:56,435 INFO L168 Benchmark]: Witness Printer took 70.02 ms. Allocated memory is still 2.7 GB. Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: 41.9 kB). Peak memory consumption was 41.9 kB. Max. memory is 11.5 GB. [2018-11-18 15:17:56,436 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 402.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -159.2 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.23 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 34.21 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 493.65 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: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 25138.37 ms. Allocated memory was 1.2 GB in the beginning and 2.7 GB in the end (delta: 1.5 GB). Free memory was 1.1 GB in the beginning and 2.0 GB in the end (delta: -987.1 MB). Peak memory consumption was 1.9 GB. Max. memory is 11.5 GB. * Witness Printer took 70.02 ms. Allocated memory is still 2.7 GB. Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: 41.9 kB). Peak memory consumption was 41.9 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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: 351]: Loop Invariant Derived loop invariant: ((((((((0 == pumpRunning && 1 <= methaneLevelCritical) && 1 <= waterLevel) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || ((0 == methaneLevelCritical && 2 <= waterLevel) && splverifierCounter == 0)) || !(systemActive == 1)) || (((0 == methaneLevelCritical && 0 == pumpRunning) && 1 <= waterLevel) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 913]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 350]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 903]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 168 locations, 1 error locations. SAFE Result, 25.0s OverallTime, 16 OverallIterations, 3 TraceHistogramMax, 9.2s AutomataDifference, 0.0s DeadEndRemovalTime, 3.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 3317 SDtfs, 2601 SDslu, 10092 SDs, 0 SdLazy, 5556 SolverSat, 805 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 2554 GetRequests, 2348 SyntacticMatches, 27 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1747occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.3s AbstIntTime, 7 AbstIntIterations, 3 AbstIntStrong, 0.9982300919923931 AbsIntWeakeningRatio, 0.8388520971302428 AbsIntAvgWeakeningVarsNumRemoved, 48.29801324503311 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 16 MinimizatonAttempts, 381 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 69 LocationsWithAnnotation, 4492 PreInvPairs, 4635 NumberOfFragments, 2198 HoareAnnotationTreeSize, 4492 FomulaSimplifications, 7993 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 69 FomulaSimplificationsInter, 22681 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 3158 NumberOfCodeBlocks, 3082 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 4092 ConstructedInterpolants, 0 QuantifiedInterpolants, 1012440 SizeOfPredicates, 26 NumberOfNonLiveVariables, 4110 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 26 InterpolantComputations, 12 PerfectInterpolantSequences, 1319/1421 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...