./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product60_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_629bd5d8-ef73-4f31-b506-3d7905a64ed0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_629bd5d8-ef73-4f31-b506-3d7905a64ed0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_629bd5d8-ef73-4f31-b506-3d7905a64ed0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_629bd5d8-ef73-4f31-b506-3d7905a64ed0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product60_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_629bd5d8-ef73-4f31-b506-3d7905a64ed0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_629bd5d8-ef73-4f31-b506-3d7905a64ed0/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 e5628f313afbfffa53e61454ca424855ee3b0eb7 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 11:54:09,581 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:54:09,582 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:54:09,588 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:54:09,589 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:54:09,589 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:54:09,590 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:54:09,591 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:54:09,592 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:54:09,592 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:54:09,593 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:54:09,593 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:54:09,594 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:54:09,595 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:54:09,595 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:54:09,596 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:54:09,596 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:54:09,597 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:54:09,599 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:54:09,600 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:54:09,600 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:54:09,601 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:54:09,603 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:54:09,603 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:54:09,603 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:54:09,603 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:54:09,604 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:54:09,605 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:54:09,605 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:54:09,606 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:54:09,606 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:54:09,607 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:54:09,607 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:54:09,607 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:54:09,607 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:54:09,608 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:54:09,608 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_629bd5d8-ef73-4f31-b506-3d7905a64ed0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 11:54:09,617 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:54:09,617 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:54:09,618 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:54:09,618 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 11:54:09,618 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 11:54:09,618 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 11:54:09,618 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 11:54:09,618 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 11:54:09,618 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 11:54:09,619 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 11:54:09,619 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 11:54:09,619 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 11:54:09,619 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 11:54:09,619 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:54:09,620 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:54:09,620 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:54:09,620 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:54:09,620 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:54:09,620 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:54:09,620 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:54:09,620 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:54:09,621 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:54:09,621 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:54:09,621 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:54:09,621 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:54:09,621 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:54:09,621 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:54:09,621 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:54:09,622 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:54:09,622 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:54:09,622 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:54:09,622 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:54:09,622 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:54:09,622 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 11:54:09,622 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:54:09,622 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:54:09,623 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 11:54:09,623 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_629bd5d8-ef73-4f31-b506-3d7905a64ed0/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 -> e5628f313afbfffa53e61454ca424855ee3b0eb7 [2018-11-18 11:54:09,647 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:54:09,656 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:54:09,658 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:54:09,659 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:54:09,660 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:54:09,660 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_629bd5d8-ef73-4f31-b506-3d7905a64ed0/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product60_true-unreach-call_false-termination.cil.c [2018-11-18 11:54:09,695 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_629bd5d8-ef73-4f31-b506-3d7905a64ed0/bin-2019/utaipan/data/28e9bf230/c93fe0c1ec834ce1a59f676bbf169bdd/FLAGc5f4a6c1f [2018-11-18 11:54:10,117 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:54:10,118 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_629bd5d8-ef73-4f31-b506-3d7905a64ed0/sv-benchmarks/c/product-lines/minepump_spec4_product60_true-unreach-call_false-termination.cil.c [2018-11-18 11:54:10,125 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_629bd5d8-ef73-4f31-b506-3d7905a64ed0/bin-2019/utaipan/data/28e9bf230/c93fe0c1ec834ce1a59f676bbf169bdd/FLAGc5f4a6c1f [2018-11-18 11:54:10,133 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_629bd5d8-ef73-4f31-b506-3d7905a64ed0/bin-2019/utaipan/data/28e9bf230/c93fe0c1ec834ce1a59f676bbf169bdd [2018-11-18 11:54:10,134 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:54:10,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:54:10,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:54:10,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:54:10,138 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:54:10,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:54:10" (1/1) ... [2018-11-18 11:54:10,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c3b532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:10, skipping insertion in model container [2018-11-18 11:54:10,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:54:10" (1/1) ... [2018-11-18 11:54:10,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:54:10,172 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:54:10,368 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:54:10,376 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:54:10,472 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:54:10,494 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:54:10,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:10 WrapperNode [2018-11-18 11:54:10,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:54:10,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:54:10,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:54:10,495 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:54:10,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:10" (1/1) ... [2018-11-18 11:54:10,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:10" (1/1) ... [2018-11-18 11:54:10,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:54:10,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:54:10,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:54:10,521 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:54:10,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:10" (1/1) ... [2018-11-18 11:54:10,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:10" (1/1) ... [2018-11-18 11:54:10,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:10" (1/1) ... [2018-11-18 11:54:10,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:10" (1/1) ... [2018-11-18 11:54:10,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:10" (1/1) ... [2018-11-18 11:54:10,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:10" (1/1) ... [2018-11-18 11:54:10,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:10" (1/1) ... [2018-11-18 11:54:10,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:54:10,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:54:10,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:54:10,546 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:54:10,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_629bd5d8-ef73-4f31-b506-3d7905a64ed0/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 11:54:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-18 11:54:10,586 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-18 11:54:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-18 11:54:10,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-18 11:54:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:54:10,587 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:54:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-11-18 11:54:10,587 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-11-18 11:54:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-18 11:54:10,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-18 11:54:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:54:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-18 11:54:10,588 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-18 11:54:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-18 11:54:10,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-18 11:54:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-18 11:54:10,588 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-18 11:54:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 11:54:10,588 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 11:54:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-18 11:54:10,588 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-18 11:54:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-11-18 11:54:10,589 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-11-18 11:54:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-18 11:54:10,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-18 11:54:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-18 11:54:10,589 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-18 11:54:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-18 11:54:10,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-18 11:54:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-18 11:54:10,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-18 11:54:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-18 11:54:10,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-18 11:54:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 11:54:10,590 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 11:54:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 11:54:10,590 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 11:54:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-18 11:54:10,590 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-18 11:54:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-11-18 11:54:10,590 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-11-18 11:54:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 11:54:10,591 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 11:54:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 11:54:10,591 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 11:54:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-18 11:54:10,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-18 11:54:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-18 11:54:10,591 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-18 11:54:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-18 11:54:10,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-18 11:54:10,592 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-18 11:54:10,592 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-18 11:54:10,592 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-18 11:54:10,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-18 11:54:10,592 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-18 11:54:10,592 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-18 11:54:10,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:54:10,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:54:10,592 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 11:54:10,592 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 11:54:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-18 11:54:10,593 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-18 11:54:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:54:10,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:54:11,044 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:54:11,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:54:11 BoogieIcfgContainer [2018-11-18 11:54:11,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:54:11,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:54:11,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:54:11,047 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:54:11,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:54:10" (1/3) ... [2018-11-18 11:54:11,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ddcea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:54:11, skipping insertion in model container [2018-11-18 11:54:11,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:10" (2/3) ... [2018-11-18 11:54:11,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ddcea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:54:11, skipping insertion in model container [2018-11-18 11:54:11,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:54:11" (3/3) ... [2018-11-18 11:54:11,050 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product60_true-unreach-call_false-termination.cil.c [2018-11-18 11:54:11,056 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:54:11,061 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:54:11,070 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:54:11,092 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:54:11,093 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:54:11,093 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:54:11,093 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:54:11,093 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:54:11,093 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:54:11,093 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:54:11,093 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:54:11,108 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states. [2018-11-18 11:54:11,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 11:54:11,114 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:11,115 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 11:54:11,117 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:54:11,122 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:11,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1077933045, now seen corresponding path program 1 times [2018-11-18 11:54:11,123 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:54:11,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:11,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:11,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:11,152 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:54:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:11,309 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 11:54:11,310 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:54:11,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:54:11,311 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:54:11,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:54:11,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:54:11,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:54:11,323 INFO L87 Difference]: Start difference. First operand 168 states. Second operand 2 states. [2018-11-18 11:54:11,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:11,353 INFO L93 Difference]: Finished difference Result 310 states and 377 transitions. [2018-11-18 11:54:11,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:54:11,355 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-18 11:54:11,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:11,364 INFO L225 Difference]: With dead ends: 310 [2018-11-18 11:54:11,365 INFO L226 Difference]: Without dead ends: 155 [2018-11-18 11:54:11,368 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 11:54:11,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-11-18 11:54:11,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2018-11-18 11:54:11,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-11-18 11:54:11,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 180 transitions. [2018-11-18 11:54:11,407 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 180 transitions. Word has length 46 [2018-11-18 11:54:11,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:11,407 INFO L480 AbstractCegarLoop]: Abstraction has 155 states and 180 transitions. [2018-11-18 11:54:11,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:54:11,407 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 180 transitions. [2018-11-18 11:54:11,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 11:54:11,409 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:11,409 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 11:54:11,409 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:54:11,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:11,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1908837773, now seen corresponding path program 1 times [2018-11-18 11:54:11,410 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:54:11,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:11,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:11,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:11,410 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:54:11,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:11,484 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 11:54:11,484 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:54:11,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:54:11,484 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:54:11,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:54:11,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:54:11,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:54:11,486 INFO L87 Difference]: Start difference. First operand 155 states and 180 transitions. Second operand 3 states. [2018-11-18 11:54:11,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:11,509 INFO L93 Difference]: Finished difference Result 247 states and 285 transitions. [2018-11-18 11:54:11,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:54:11,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-11-18 11:54:11,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:11,511 INFO L225 Difference]: With dead ends: 247 [2018-11-18 11:54:11,511 INFO L226 Difference]: Without dead ends: 145 [2018-11-18 11:54:11,513 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 11:54:11,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-11-18 11:54:11,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2018-11-18 11:54:11,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-11-18 11:54:11,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 167 transitions. [2018-11-18 11:54:11,524 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 167 transitions. Word has length 48 [2018-11-18 11:54:11,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:11,524 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 167 transitions. [2018-11-18 11:54:11,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:54:11,524 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 167 transitions. [2018-11-18 11:54:11,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 11:54:11,525 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:11,526 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] [2018-11-18 11:54:11,526 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:54:11,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:11,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1041096570, now seen corresponding path program 1 times [2018-11-18 11:54:11,526 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:54:11,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:11,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:11,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:11,527 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:54:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:11,659 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 11:54:11,660 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:54:11,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 11:54:11,660 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:54:11,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 11:54:11,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 11:54:11,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:54:11,661 INFO L87 Difference]: Start difference. First operand 145 states and 167 transitions. Second operand 7 states. [2018-11-18 11:54:12,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:12,070 INFO L93 Difference]: Finished difference Result 438 states and 522 transitions. [2018-11-18 11:54:12,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 11:54:12,070 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2018-11-18 11:54:12,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:12,073 INFO L225 Difference]: With dead ends: 438 [2018-11-18 11:54:12,073 INFO L226 Difference]: Without dead ends: 317 [2018-11-18 11:54:12,074 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 11:54:12,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2018-11-18 11:54:12,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 305. [2018-11-18 11:54:12,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2018-11-18 11:54:12,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 363 transitions. [2018-11-18 11:54:12,097 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 363 transitions. Word has length 53 [2018-11-18 11:54:12,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:12,097 INFO L480 AbstractCegarLoop]: Abstraction has 305 states and 363 transitions. [2018-11-18 11:54:12,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 11:54:12,097 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 363 transitions. [2018-11-18 11:54:12,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-18 11:54:12,098 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:12,098 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:12,099 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:54:12,099 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:12,099 INFO L82 PathProgramCache]: Analyzing trace with hash 293532203, now seen corresponding path program 1 times [2018-11-18 11:54:12,099 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:54:12,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:12,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:12,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:12,100 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:54:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:12,226 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 11:54:12,227 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:54:12,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 11:54:12,227 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:54:12,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 11:54:12,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 11:54:12,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-18 11:54:12,228 INFO L87 Difference]: Start difference. First operand 305 states and 363 transitions. Second operand 10 states. [2018-11-18 11:54:12,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:12,790 INFO L93 Difference]: Finished difference Result 1100 states and 1400 transitions. [2018-11-18 11:54:12,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 11:54:12,791 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2018-11-18 11:54:12,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:12,796 INFO L225 Difference]: With dead ends: 1100 [2018-11-18 11:54:12,796 INFO L226 Difference]: Without dead ends: 819 [2018-11-18 11:54:12,799 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-11-18 11:54:12,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2018-11-18 11:54:12,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 807. [2018-11-18 11:54:12,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2018-11-18 11:54:12,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 993 transitions. [2018-11-18 11:54:12,846 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 993 transitions. Word has length 58 [2018-11-18 11:54:12,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:12,847 INFO L480 AbstractCegarLoop]: Abstraction has 807 states and 993 transitions. [2018-11-18 11:54:12,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 11:54:12,847 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 993 transitions. [2018-11-18 11:54:12,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 11:54:12,850 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:12,850 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:12,850 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:54:12,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:12,850 INFO L82 PathProgramCache]: Analyzing trace with hash -381051983, now seen corresponding path program 1 times [2018-11-18 11:54:12,850 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:54:12,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:12,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:12,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:12,852 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:54:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:12,932 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 11:54:12,932 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:54:12,932 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 11:54:12,932 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:54:12,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 11:54:12,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 11:54:12,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:54:12,933 INFO L87 Difference]: Start difference. First operand 807 states and 993 transitions. Second operand 4 states. [2018-11-18 11:54:13,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:13,157 INFO L93 Difference]: Finished difference Result 2010 states and 2682 transitions. [2018-11-18 11:54:13,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 11:54:13,159 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2018-11-18 11:54:13,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:13,163 INFO L225 Difference]: With dead ends: 2010 [2018-11-18 11:54:13,163 INFO L226 Difference]: Without dead ends: 1227 [2018-11-18 11:54:13,165 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:54:13,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2018-11-18 11:54:13,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1080. [2018-11-18 11:54:13,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1080 states. [2018-11-18 11:54:13,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1337 transitions. [2018-11-18 11:54:13,211 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1337 transitions. Word has length 62 [2018-11-18 11:54:13,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:13,211 INFO L480 AbstractCegarLoop]: Abstraction has 1080 states and 1337 transitions. [2018-11-18 11:54:13,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 11:54:13,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1337 transitions. [2018-11-18 11:54:13,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-11-18 11:54:13,214 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:13,214 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:13,214 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:54:13,215 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:13,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1666472192, now seen corresponding path program 1 times [2018-11-18 11:54:13,215 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:54:13,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:13,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:13,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:13,216 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:54:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:13,298 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-18 11:54:13,298 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:13,298 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:54:13,299 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 92 with the following transitions: [2018-11-18 11:54:13,300 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [59], [94], [98], [104], [108], [112], [115], [120], [126], [128], [134], [137], [140], [152], [153], [176], [177], [192], [199], [202], [237], [264], [268], [269], [272], [273], [274], [275], [276], [278], [279], [280], [281], [282], [283], [284], [285], [286], [292], [304], [305], [310], [311], [312], [313], [326], [327], [332], [333], [334] [2018-11-18 11:54:13,324 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:54:13,325 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:54:13,679 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 11:54:13,680 INFO L272 AbstractInterpreter]: Visited 68 different actions 80 times. Merged at 7 different actions 7 times. Never widened. Performed 3147 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3147 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 133 variables. [2018-11-18 11:54:13,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:13,697 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 11:54:13,697 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:13,697 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_629bd5d8-ef73-4f31-b506-3d7905a64ed0/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 11:54:13,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:13,704 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 11:54:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:13,777 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:54:13,857 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 11:54:13,857 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:54:13,982 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 11:54:13,998 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 11:54:13,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-11-18 11:54:13,999 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 11:54:13,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 11:54:13,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 11:54:14,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-11-18 11:54:14,000 INFO L87 Difference]: Start difference. First operand 1080 states and 1337 transitions. Second operand 12 states. [2018-11-18 11:54:16,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:16,010 INFO L93 Difference]: Finished difference Result 2540 states and 3388 transitions. [2018-11-18 11:54:16,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-11-18 11:54:16,011 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 91 [2018-11-18 11:54:16,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:16,017 INFO L225 Difference]: With dead ends: 2540 [2018-11-18 11:54:16,017 INFO L226 Difference]: Without dead ends: 1767 [2018-11-18 11:54:16,020 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 186 SyntacticMatches, 8 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=645, Invalid=2547, Unknown=0, NotChecked=0, Total=3192 [2018-11-18 11:54:16,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2018-11-18 11:54:16,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1548. [2018-11-18 11:54:16,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1548 states. [2018-11-18 11:54:16,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 1938 transitions. [2018-11-18 11:54:16,092 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 1938 transitions. Word has length 91 [2018-11-18 11:54:16,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:16,092 INFO L480 AbstractCegarLoop]: Abstraction has 1548 states and 1938 transitions. [2018-11-18 11:54:16,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 11:54:16,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 1938 transitions. [2018-11-18 11:54:16,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-11-18 11:54:16,096 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:16,097 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:54:16,097 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:54:16,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:16,097 INFO L82 PathProgramCache]: Analyzing trace with hash 420813846, now seen corresponding path program 1 times [2018-11-18 11:54:16,097 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:54:16,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:16,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:16,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:16,098 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:54:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:16,215 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 11:54:16,215 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:16,215 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:54:16,215 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2018-11-18 11:54:16,215 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [73], [74], [77], [79], [85], [89], [92], [93], [94], [98], [104], [108], [112], [118], [120], [126], [128], [134], [140], [148], [149], [150], [151], [152], [153], [154], [156], [161], [164], [165], [167], [170], [174], [175], [176], [177], [185], [186], [189], [192], [196], [202], [232], [236], [237], [243], [246], [248], [251], [258], [261], [269], [272], [273], [274], [275], [276], [278], [279], [280], [281], [282], [283], [284], [285], [286], [290], [291], [292], [294], [295], [296], [297], [300], [301], [302], [303], [312], [313], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [326], [327], [332], [333], [334], [336], [337], [338], [339], [342], [343] [2018-11-18 11:54:16,219 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:54:16,219 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:54:17,120 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 11:54:17,121 INFO L272 AbstractInterpreter]: Visited 126 different actions 452 times. Merged at 18 different actions 34 times. Never widened. Performed 16173 root evaluator evaluations with a maximum evaluation depth of 5. Performed 16173 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 5 fixpoints after 3 different actions. Largest state had 133 variables. [2018-11-18 11:54:17,132 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:17,132 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 11:54:17,132 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:17,132 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_629bd5d8-ef73-4f31-b506-3d7905a64ed0/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 11:54:17,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:17,143 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 11:54:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:17,229 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:54:17,268 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-18 11:54:17,269 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:54:17,474 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 11:54:17,500 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:54:17,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-11-18 11:54:17,501 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:54:17,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 11:54:17,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:54:17,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:54:17,502 INFO L87 Difference]: Start difference. First operand 1548 states and 1938 transitions. Second operand 6 states. [2018-11-18 11:54:17,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:17,554 INFO L93 Difference]: Finished difference Result 3128 states and 4118 transitions. [2018-11-18 11:54:17,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:54:17,554 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2018-11-18 11:54:17,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:17,560 INFO L225 Difference]: With dead ends: 3128 [2018-11-18 11:54:17,560 INFO L226 Difference]: Without dead ends: 1604 [2018-11-18 11:54:17,563 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 297 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:54:17,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-11-18 11:54:17,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1588. [2018-11-18 11:54:17,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1588 states. [2018-11-18 11:54:17,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 1982 transitions. [2018-11-18 11:54:17,614 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 1982 transitions. Word has length 151 [2018-11-18 11:54:17,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:17,614 INFO L480 AbstractCegarLoop]: Abstraction has 1588 states and 1982 transitions. [2018-11-18 11:54:17,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 11:54:17,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 1982 transitions. [2018-11-18 11:54:17,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-11-18 11:54:17,617 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:17,617 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:54:17,617 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:54:17,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:17,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1976656684, now seen corresponding path program 1 times [2018-11-18 11:54:17,618 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:54:17,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:17,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:17,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:17,618 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:54:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:17,693 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 11:54:17,694 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:17,694 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:54:17,694 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2018-11-18 11:54:17,694 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [73], [74], [77], [79], [85], [89], [92], [93], [94], [98], [104], [108], [112], [118], [120], [126], [128], [134], [140], [148], [149], [150], [151], [152], [153], [154], [156], [161], [164], [165], [167], [172], [174], [175], [176], [177], [185], [186], [189], [192], [196], [202], [232], [236], [237], [243], [246], [248], [251], [258], [261], [269], [272], [273], [274], [275], [276], [278], [279], [280], [281], [282], [283], [284], [285], [286], [290], [291], [292], [294], [295], [296], [297], [300], [301], [302], [303], [312], [313], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [326], [327], [332], [333], [334], [336], [337], [338], [339], [342], [343] [2018-11-18 11:54:17,697 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:54:17,697 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:54:17,789 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 11:54:17,789 INFO L272 AbstractInterpreter]: Visited 55 different actions 55 times. Never merged. Never widened. Performed 1858 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1858 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-18 11:54:17,796 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:17,796 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 11:54:17,951 INFO L227 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 96.61% of their original sizes. [2018-11-18 11:54:17,951 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 11:54:18,004 INFO L415 sIntCurrentIteration]: We unified 150 AI predicates to 150 [2018-11-18 11:54:18,004 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 11:54:18,004 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 11:54:18,004 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2018-11-18 11:54:18,004 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:54:18,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 11:54:18,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 11:54:18,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-18 11:54:18,005 INFO L87 Difference]: Start difference. First operand 1588 states and 1982 transitions. Second operand 11 states. [2018-11-18 11:54:19,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:19,601 INFO L93 Difference]: Finished difference Result 3452 states and 4319 transitions. [2018-11-18 11:54:19,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 11:54:19,602 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2018-11-18 11:54:19,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:19,607 INFO L225 Difference]: With dead ends: 3452 [2018-11-18 11:54:19,607 INFO L226 Difference]: Without dead ends: 1888 [2018-11-18 11:54:19,610 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2018-11-18 11:54:19,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2018-11-18 11:54:19,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1838. [2018-11-18 11:54:19,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2018-11-18 11:54:19,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2269 transitions. [2018-11-18 11:54:19,670 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2269 transitions. Word has length 151 [2018-11-18 11:54:19,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:19,671 INFO L480 AbstractCegarLoop]: Abstraction has 1838 states and 2269 transitions. [2018-11-18 11:54:19,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 11:54:19,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2269 transitions. [2018-11-18 11:54:19,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-11-18 11:54:19,674 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:19,674 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:54:19,674 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:54:19,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:19,674 INFO L82 PathProgramCache]: Analyzing trace with hash 489133, now seen corresponding path program 1 times [2018-11-18 11:54:19,675 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:54:19,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:19,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:19,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:19,675 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:54:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:19,787 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 11:54:19,787 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:19,787 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:54:19,787 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-11-18 11:54:19,787 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [98], [104], [108], [112], [115], [118], [120], [126], [128], [134], [140], [148], [149], [150], [151], [152], [153], [154], [156], [161], [164], [165], [167], [172], [174], [175], [176], [177], [185], [186], [189], [192], [196], [202], [232], [236], [237], [243], [246], [248], [251], [258], [261], [264], [268], [269], [272], [273], [274], [275], [276], [278], [279], [280], [281], [282], [283], [284], [285], [286], [290], [291], [292], [294], [295], [296], [297], [300], [301], [302], [303], [304], [305], [312], [313], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [326], [327], [332], [333], [334], [336], [337], [338], [339], [342], [343] [2018-11-18 11:54:19,790 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:54:19,790 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:54:20,887 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 11:54:20,887 INFO L272 AbstractInterpreter]: Visited 131 different actions 598 times. Merged at 17 different actions 48 times. Never widened. Performed 18637 root evaluator evaluations with a maximum evaluation depth of 5. Performed 18637 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-11-18 11:54:20,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:20,900 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 11:54:20,900 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:20,900 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_629bd5d8-ef73-4f31-b506-3d7905a64ed0/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 11:54:20,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:20,908 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 11:54:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:20,989 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:54:21,055 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:54:21,055 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:54:21,263 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 11:54:21,279 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 11:54:21,279 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-11-18 11:54:21,279 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 11:54:21,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 11:54:21,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 11:54:21,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-11-18 11:54:21,280 INFO L87 Difference]: Start difference. First operand 1838 states and 2269 transitions. Second operand 14 states. [2018-11-18 11:54:23,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:23,231 INFO L93 Difference]: Finished difference Result 3841 states and 5240 transitions. [2018-11-18 11:54:23,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-18 11:54:23,231 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 155 [2018-11-18 11:54:23,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:23,239 INFO L225 Difference]: With dead ends: 3841 [2018-11-18 11:54:23,239 INFO L226 Difference]: Without dead ends: 2576 [2018-11-18 11:54:23,242 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 306 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=265, Invalid=995, Unknown=0, NotChecked=0, Total=1260 [2018-11-18 11:54:23,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2576 states. [2018-11-18 11:54:23,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2576 to 2108. [2018-11-18 11:54:23,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2108 states. [2018-11-18 11:54:23,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2108 states to 2108 states and 2594 transitions. [2018-11-18 11:54:23,320 INFO L78 Accepts]: Start accepts. Automaton has 2108 states and 2594 transitions. Word has length 155 [2018-11-18 11:54:23,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:23,321 INFO L480 AbstractCegarLoop]: Abstraction has 2108 states and 2594 transitions. [2018-11-18 11:54:23,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 11:54:23,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2108 states and 2594 transitions. [2018-11-18 11:54:23,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-11-18 11:54:23,324 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:23,324 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:54:23,324 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:54:23,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:23,325 INFO L82 PathProgramCache]: Analyzing trace with hash -668414448, now seen corresponding path program 1 times [2018-11-18 11:54:23,325 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:54:23,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:23,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:23,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:23,326 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:54:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:23,396 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 11:54:23,396 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:23,397 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:54:23,397 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-11-18 11:54:23,397 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [73], [74], [77], [79], [85], [89], [92], [93], [94], [98], [104], [108], [112], [118], [120], [123], [126], [128], [134], [140], [148], [149], [150], [151], [152], [153], [154], [156], [161], [164], [165], [167], [172], [174], [175], [176], [177], [182], [184], [185], [186], [189], [192], [196], [202], [232], [236], [237], [243], [246], [248], [251], [258], [261], [269], [272], [273], [274], [275], [276], [278], [279], [280], [281], [282], [283], [284], [285], [286], [290], [291], [292], [294], [295], [296], [297], [300], [301], [302], [303], [306], [307], [312], [313], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [326], [327], [332], [333], [334], [336], [337], [338], [339], [342], [343] [2018-11-18 11:54:23,399 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:54:23,399 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:54:23,547 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 11:54:23,547 INFO L272 AbstractInterpreter]: Visited 60 different actions 84 times. Merged at 4 different actions 4 times. Never widened. Performed 4548 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4548 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-18 11:54:23,556 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:23,556 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 11:54:23,691 INFO L227 lantSequenceWeakener]: Weakened 70 states. On average, predicates are now at 96.6% of their original sizes. [2018-11-18 11:54:23,691 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 11:54:23,762 INFO L415 sIntCurrentIteration]: We unified 154 AI predicates to 154 [2018-11-18 11:54:23,762 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 11:54:23,763 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 11:54:23,763 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [8] total 20 [2018-11-18 11:54:23,763 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:54:23,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 11:54:23,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 11:54:23,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2018-11-18 11:54:23,764 INFO L87 Difference]: Start difference. First operand 2108 states and 2594 transitions. Second operand 14 states. [2018-11-18 11:54:26,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:26,360 INFO L93 Difference]: Finished difference Result 4305 states and 5324 transitions. [2018-11-18 11:54:26,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 11:54:26,360 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 155 [2018-11-18 11:54:26,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:26,370 INFO L225 Difference]: With dead ends: 4305 [2018-11-18 11:54:26,370 INFO L226 Difference]: Without dead ends: 2221 [2018-11-18 11:54:26,375 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 161 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2018-11-18 11:54:26,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2018-11-18 11:54:26,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 2166. [2018-11-18 11:54:26,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2166 states. [2018-11-18 11:54:26,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2166 states to 2166 states and 2657 transitions. [2018-11-18 11:54:26,489 INFO L78 Accepts]: Start accepts. Automaton has 2166 states and 2657 transitions. Word has length 155 [2018-11-18 11:54:26,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:26,489 INFO L480 AbstractCegarLoop]: Abstraction has 2166 states and 2657 transitions. [2018-11-18 11:54:26,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 11:54:26,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2166 states and 2657 transitions. [2018-11-18 11:54:26,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-11-18 11:54:26,494 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:26,494 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:54:26,494 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:54:26,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:26,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1816468793, now seen corresponding path program 1 times [2018-11-18 11:54:26,495 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:54:26,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:26,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:26,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:26,496 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:54:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:26,575 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 11:54:26,575 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:54:26,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 11:54:26,575 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:54:26,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 11:54:26,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 11:54:26,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:54:26,576 INFO L87 Difference]: Start difference. First operand 2166 states and 2657 transitions. Second operand 4 states. [2018-11-18 11:54:26,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:26,739 INFO L93 Difference]: Finished difference Result 3480 states and 4263 transitions. [2018-11-18 11:54:26,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 11:54:26,740 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 156 [2018-11-18 11:54:26,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:26,743 INFO L225 Difference]: With dead ends: 3480 [2018-11-18 11:54:26,744 INFO L226 Difference]: Without dead ends: 1338 [2018-11-18 11:54:26,747 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:54:26,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2018-11-18 11:54:26,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1308. [2018-11-18 11:54:26,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1308 states. [2018-11-18 11:54:26,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1308 states to 1308 states and 1566 transitions. [2018-11-18 11:54:26,787 INFO L78 Accepts]: Start accepts. Automaton has 1308 states and 1566 transitions. Word has length 156 [2018-11-18 11:54:26,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:26,787 INFO L480 AbstractCegarLoop]: Abstraction has 1308 states and 1566 transitions. [2018-11-18 11:54:26,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 11:54:26,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1308 states and 1566 transitions. [2018-11-18 11:54:26,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-11-18 11:54:26,789 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:26,790 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:54:26,790 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:54:26,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:26,790 INFO L82 PathProgramCache]: Analyzing trace with hash -862344081, now seen corresponding path program 1 times [2018-11-18 11:54:26,790 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:54:26,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:26,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:26,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:26,791 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:54:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:26,857 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 38 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-18 11:54:26,857 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:26,858 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:54:26,858 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 185 with the following transitions: [2018-11-18 11:54:26,858 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [73], [74], [77], [79], [85], [89], [92], [93], [94], [98], [104], [108], [112], [118], [120], [126], [128], [131], [134], [137], [140], [148], [149], [150], [151], [152], [153], [154], [156], [161], [164], [165], [167], [172], [174], [175], [176], [177], [185], [186], [189], [192], [196], [199], [202], [232], [236], [237], [241], [242], [243], [246], [248], [251], [258], [261], [269], [272], [273], [274], [275], [276], [278], [279], [280], [281], [282], [283], [284], [285], [286], [290], [291], [292], [294], [295], [296], [297], [300], [301], [302], [303], [308], [309], [310], [311], [312], [313], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [326], [327], [332], [333], [334], [336], [337], [338], [339], [342], [343] [2018-11-18 11:54:26,859 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:54:26,860 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:54:27,182 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 11:54:27,182 INFO L272 AbstractInterpreter]: Visited 88 different actions 153 times. Merged at 14 different actions 14 times. Never widened. Performed 5258 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5258 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 133 variables. [2018-11-18 11:54:27,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:27,184 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 11:54:27,184 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:27,184 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_629bd5d8-ef73-4f31-b506-3d7905a64ed0/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 11:54:27,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:27,195 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 11:54:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:27,273 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:54:27,354 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-18 11:54:27,354 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:54:27,512 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 38 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-18 11:54:27,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:54:27,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-11-18 11:54:27,536 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:54:27,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:54:27,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:54:27,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-18 11:54:27,537 INFO L87 Difference]: Start difference. First operand 1308 states and 1566 transitions. Second operand 5 states. [2018-11-18 11:54:27,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:27,578 INFO L93 Difference]: Finished difference Result 2304 states and 2825 transitions. [2018-11-18 11:54:27,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 11:54:27,578 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 184 [2018-11-18 11:54:27,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:27,582 INFO L225 Difference]: With dead ends: 2304 [2018-11-18 11:54:27,582 INFO L226 Difference]: Without dead ends: 1020 [2018-11-18 11:54:27,584 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 365 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-18 11:54:27,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2018-11-18 11:54:27,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 1020. [2018-11-18 11:54:27,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1020 states. [2018-11-18 11:54:27,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1219 transitions. [2018-11-18 11:54:27,636 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1219 transitions. Word has length 184 [2018-11-18 11:54:27,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:27,637 INFO L480 AbstractCegarLoop]: Abstraction has 1020 states and 1219 transitions. [2018-11-18 11:54:27,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:54:27,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1219 transitions. [2018-11-18 11:54:27,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-11-18 11:54:27,640 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:27,640 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, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 11:54:27,640 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:54:27,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:27,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1863916177, now seen corresponding path program 1 times [2018-11-18 11:54:27,640 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:54:27,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:27,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:27,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:27,641 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:54:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:27,748 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 43 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-11-18 11:54:27,748 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:27,748 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:54:27,748 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 211 with the following transitions: [2018-11-18 11:54:27,749 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [55], [57], [58], [59], [62], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [98], [104], [108], [112], [115], [118], [120], [126], [128], [134], [140], [148], [149], [150], [151], [152], [153], [154], [156], [161], [164], [165], [167], [172], [174], [175], [176], [177], [185], [186], [189], [192], [196], [202], [232], [236], [237], [243], [246], [248], [251], [258], [261], [264], [268], [269], [272], [273], [274], [275], [276], [278], [279], [280], [281], [282], [283], [284], [285], [286], [290], [291], [292], [294], [295], [296], [297], [300], [301], [302], [303], [304], [305], [312], [313], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [326], [327], [332], [333], [334], [336], [337], [338], [339], [342], [343] [2018-11-18 11:54:27,750 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:54:27,750 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:54:28,577 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 11:54:28,577 INFO L272 AbstractInterpreter]: Visited 132 different actions 610 times. Merged at 20 different actions 57 times. Never widened. Performed 18673 root evaluator evaluations with a maximum evaluation depth of 5. Performed 18673 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 12 fixpoints after 4 different actions. Largest state had 133 variables. [2018-11-18 11:54:28,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:28,580 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 11:54:28,580 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:28,581 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_629bd5d8-ef73-4f31-b506-3d7905a64ed0/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 11:54:28,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:28,588 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 11:54:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:28,676 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:54:28,771 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-11-18 11:54:28,771 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:54:29,047 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 43 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-11-18 11:54:29,072 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:54:29,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-11-18 11:54:29,073 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:54:29,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 11:54:29,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:54:29,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-18 11:54:29,074 INFO L87 Difference]: Start difference. First operand 1020 states and 1219 transitions. Second operand 6 states. [2018-11-18 11:54:29,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:29,118 INFO L93 Difference]: Finished difference Result 1335 states and 1597 transitions. [2018-11-18 11:54:29,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:54:29,119 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 210 [2018-11-18 11:54:29,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:29,120 INFO L225 Difference]: With dead ends: 1335 [2018-11-18 11:54:29,120 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 11:54:29,122 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 415 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-18 11:54:29,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 11:54:29,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 11:54:29,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 11:54:29,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 11:54:29,123 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 210 [2018-11-18 11:54:29,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:29,123 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:54:29,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 11:54:29,123 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 11:54:29,124 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 11:54:29,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 11:54:29,167 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,194 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,216 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,217 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,218 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,222 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,410 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,427 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,428 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,430 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,443 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,453 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,458 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,460 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,546 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,563 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,565 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,565 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,566 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,613 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,617 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,620 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,620 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,621 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,661 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,663 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,665 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,667 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,672 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,674 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,799 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,811 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,812 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,815 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,832 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,838 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,838 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,881 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,887 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,888 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:29,889 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:30,183 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 31 [2018-11-18 11:54:31,524 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 36 [2018-11-18 11:54:31,674 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2018-11-18 11:54:31,674 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2018-11-18 11:54:31,674 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2018-11-18 11:54:31,674 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2018-11-18 11:54:31,674 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 68 76) no Hoare annotation was computed. [2018-11-18 11:54:31,674 INFO L428 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 548 572) the Hoare annotation is: true [2018-11-18 11:54:31,674 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 548 572) no Hoare annotation was computed. [2018-11-18 11:54:31,674 INFO L421 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= ~systemActive~0 0)) .cse1) (or (< ~waterLevel~0 2) .cse2))) [2018-11-18 11:54:31,674 INFO L425 ceAbstractionStarter]: For program point L560(lines 560 566) no Hoare annotation was computed. [2018-11-18 11:54:31,674 INFO L421 ceAbstractionStarter]: At program point L558(line 558) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= ~systemActive~0 0)) .cse1) (or (< ~waterLevel~0 2) .cse2))) [2018-11-18 11:54:31,674 INFO L425 ceAbstractionStarter]: For program point L558-1(line 558) no Hoare annotation was computed. [2018-11-18 11:54:31,675 INFO L425 ceAbstractionStarter]: For program point L556(lines 556 569) no Hoare annotation was computed. [2018-11-18 11:54:31,675 INFO L425 ceAbstractionStarter]: For program point L556-1(lines 548 572) no Hoare annotation was computed. [2018-11-18 11:54:31,675 INFO L428 ceAbstractionStarter]: At program point L554(line 554) the Hoare annotation is: true [2018-11-18 11:54:31,675 INFO L425 ceAbstractionStarter]: For program point L554-1(line 554) no Hoare annotation was computed. [2018-11-18 11:54:31,675 INFO L421 ceAbstractionStarter]: At program point L161(line 161) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 11:54:31,675 INFO L421 ceAbstractionStarter]: At program point L161-1(line 161) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 11:54:31,675 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 155 177) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 11:54:31,675 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 155 177) no Hoare annotation was computed. [2018-11-18 11:54:31,675 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 155 177) no Hoare annotation was computed. [2018-11-18 11:54:31,675 INFO L421 ceAbstractionStarter]: At program point L167(line 167) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= main_~tmp~0 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 11:54:31,676 INFO L421 ceAbstractionStarter]: At program point L167-1(line 167) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= main_~tmp~0 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 11:54:31,676 INFO L425 ceAbstractionStarter]: For program point L165(lines 165 172) no Hoare annotation was computed. [2018-11-18 11:54:31,676 INFO L425 ceAbstractionStarter]: For program point L165-1(lines 165 172) no Hoare annotation was computed. [2018-11-18 11:54:31,676 INFO L425 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-18 11:54:31,676 INFO L421 ceAbstractionStarter]: At program point L162(line 162) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 11:54:31,676 INFO L425 ceAbstractionStarter]: For program point stopSystemEXIT(lines 806 820) no Hoare annotation was computed. [2018-11-18 11:54:31,676 INFO L421 ceAbstractionStarter]: At program point L812(line 812) the Hoare annotation is: (and (or (< ~waterLevel~0 2) (= |old(~systemActive~0)| 0) (and (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1))) [2018-11-18 11:54:31,676 INFO L425 ceAbstractionStarter]: For program point L810(lines 810 816) no Hoare annotation was computed. [2018-11-18 11:54:31,676 INFO L421 ceAbstractionStarter]: At program point stopSystemENTRY(lines 806 820) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~waterLevel~0 2) (= |old(~systemActive~0)| 0) (and (not (= ~systemActive~0 0)) .cse0)) (or .cse0 (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1))))) [2018-11-18 11:54:31,676 INFO L425 ceAbstractionStarter]: For program point stopSystemFINAL(lines 806 820) no Hoare annotation was computed. [2018-11-18 11:54:31,676 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 723 731) no Hoare annotation was computed. [2018-11-18 11:54:31,676 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 723 731) the Hoare annotation is: true [2018-11-18 11:54:31,676 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 723 731) no Hoare annotation was computed. [2018-11-18 11:54:31,677 INFO L425 ceAbstractionStarter]: For program point L796(lines 796 800) no Hoare annotation was computed. [2018-11-18 11:54:31,677 INFO L428 ceAbstractionStarter]: At program point L794(line 794) the Hoare annotation is: true [2018-11-18 11:54:31,677 INFO L425 ceAbstractionStarter]: For program point L796-2(lines 796 800) no Hoare annotation was computed. [2018-11-18 11:54:31,677 INFO L428 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 787 805) the Hoare annotation is: true [2018-11-18 11:54:31,677 INFO L425 ceAbstractionStarter]: For program point L794-1(line 794) no Hoare annotation was computed. [2018-11-18 11:54:31,677 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 787 805) no Hoare annotation was computed. [2018-11-18 11:54:31,677 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 787 805) no Hoare annotation was computed. [2018-11-18 11:54:31,677 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2018-11-18 11:54:31,677 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2018-11-18 11:54:31,677 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 145 154) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 11:54:31,677 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 145 154) no Hoare annotation was computed. [2018-11-18 11:54:31,677 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 145 154) no Hoare annotation was computed. [2018-11-18 11:54:31,677 INFO L428 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 712 722) the Hoare annotation is: true [2018-11-18 11:54:31,677 INFO L428 ceAbstractionStarter]: At program point L717(line 717) the Hoare annotation is: true [2018-11-18 11:54:31,677 INFO L425 ceAbstractionStarter]: For program point L717-1(line 717) no Hoare annotation was computed. [2018-11-18 11:54:31,678 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 712 722) no Hoare annotation was computed. [2018-11-18 11:54:31,678 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 712 722) no Hoare annotation was computed. [2018-11-18 11:54:31,678 INFO L421 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 704 711) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~waterLevel~0 2) (= ~systemActive~0 0) .cse0) (or .cse0 (< ~waterLevel~0 1) (not (= ~systemActive~0 1))))) [2018-11-18 11:54:31,678 INFO L425 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 704 711) no Hoare annotation was computed. [2018-11-18 11:54:31,678 INFO L425 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 704 711) no Hoare annotation was computed. [2018-11-18 11:54:31,678 INFO L425 ceAbstractionStarter]: For program point L982(lines 982 988) no Hoare annotation was computed. [2018-11-18 11:54:31,678 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 978 991) no Hoare annotation was computed. [2018-11-18 11:54:31,678 INFO L428 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 978 991) the Hoare annotation is: true [2018-11-18 11:54:31,678 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 978 991) no Hoare annotation was computed. [2018-11-18 11:54:31,678 INFO L421 ceAbstractionStarter]: At program point L672(line 672) the Hoare annotation is: (or (< ~waterLevel~0 1) (and (= 0 ~pumpRunning~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1))) [2018-11-18 11:54:31,678 INFO L425 ceAbstractionStarter]: For program point L672-1(lines 653 677) no Hoare annotation was computed. [2018-11-18 11:54:31,678 INFO L421 ceAbstractionStarter]: At program point L667(line 667) the Hoare annotation is: (or (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-18 11:54:31,678 INFO L421 ceAbstractionStarter]: At program point L663(line 663) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (and (<= 1 processEnvironment_~tmp~6) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse0 .cse1))) [2018-11-18 11:54:31,678 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 653 677) no Hoare annotation was computed. [2018-11-18 11:54:31,679 INFO L425 ceAbstractionStarter]: For program point L661(lines 661 669) no Hoare annotation was computed. [2018-11-18 11:54:31,679 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 653 677) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-18 11:54:31,679 INFO L421 ceAbstractionStarter]: At program point L659(line 659) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1))) [2018-11-18 11:54:31,679 INFO L425 ceAbstractionStarter]: For program point L659-1(line 659) no Hoare annotation was computed. [2018-11-18 11:54:31,679 INFO L425 ceAbstractionStarter]: For program point L657(lines 657 674) no Hoare annotation was computed. [2018-11-18 11:54:31,679 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 619 625) no Hoare annotation was computed. [2018-11-18 11:54:31,679 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 619 625) the Hoare annotation is: true [2018-11-18 11:54:31,679 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 830 897) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 11:54:31,679 INFO L421 ceAbstractionStarter]: At program point L890(lines 839 891) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 11:54:31,679 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 830 897) no Hoare annotation was computed. [2018-11-18 11:54:31,679 INFO L421 ceAbstractionStarter]: At program point L880(line 880) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (and .cse0 (<= 2 ~waterLevel~0)) (not (= ~systemActive~0 0))) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 11:54:31,679 INFO L425 ceAbstractionStarter]: For program point L878(lines 878 884) no Hoare annotation was computed. [2018-11-18 11:54:31,679 INFO L421 ceAbstractionStarter]: At program point L878-1(lines 870 885) the Hoare annotation is: (let ((.cse1 (= test_~splverifierCounter~0 0)) (.cse0 (= ~systemActive~0 1))) (or (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~systemActive~0 0) (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse1 (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0) .cse0))) [2018-11-18 11:54:31,680 INFO L425 ceAbstractionStarter]: For program point L841(lines 840 889) no Hoare annotation was computed. [2018-11-18 11:54:31,680 INFO L421 ceAbstractionStarter]: At program point L872(line 872) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) (not (= ~systemActive~0 0)) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 11:54:31,680 INFO L425 ceAbstractionStarter]: For program point L870(lines 870 885) no Hoare annotation was computed. [2018-11-18 11:54:31,680 INFO L421 ceAbstractionStarter]: At program point L862(line 862) the Hoare annotation is: (let ((.cse1 (= test_~splverifierCounter~0 0)) (.cse0 (= ~systemActive~0 1))) (or (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~systemActive~0 0) (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse1 (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0) .cse0))) [2018-11-18 11:54:31,680 INFO L425 ceAbstractionStarter]: For program point L860(lines 860 866) no Hoare annotation was computed. [2018-11-18 11:54:31,680 INFO L425 ceAbstractionStarter]: For program point L860-1(lines 860 866) no Hoare annotation was computed. [2018-11-18 11:54:31,680 INFO L421 ceAbstractionStarter]: At program point L887(lines 840 889) the Hoare annotation is: (let ((.cse1 (= test_~splverifierCounter~0 0)) (.cse0 (= ~systemActive~0 1))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 0) (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse1 (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0) .cse0))) [2018-11-18 11:54:31,680 INFO L421 ceAbstractionStarter]: At program point L852(line 852) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= 1 ~waterLevel~0)) (.cse2 (= ~systemActive~0 1)) (.cse3 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and .cse0 .cse1 .cse2 .cse3) (and (= ~systemActive~0 0) .cse0 .cse1 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse2 .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 11:54:31,680 INFO L425 ceAbstractionStarter]: For program point L850(lines 850 856) no Hoare annotation was computed. [2018-11-18 11:54:31,680 INFO L425 ceAbstractionStarter]: For program point L850-1(lines 850 856) no Hoare annotation was computed. [2018-11-18 11:54:31,680 INFO L425 ceAbstractionStarter]: For program point L842(lines 842 846) no Hoare annotation was computed. [2018-11-18 11:54:31,680 INFO L425 ceAbstractionStarter]: For program point L840-1(lines 840 889) no Hoare annotation was computed. [2018-11-18 11:54:31,681 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 830 897) no Hoare annotation was computed. [2018-11-18 11:54:31,681 INFO L421 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 678 685) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-18 11:54:31,681 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 678 685) no Hoare annotation was computed. [2018-11-18 11:54:31,681 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 678 685) no Hoare annotation was computed. [2018-11-18 11:54:31,681 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 992 1000) no Hoare annotation was computed. [2018-11-18 11:54:31,681 INFO L428 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 992 1000) the Hoare annotation is: true [2018-11-18 11:54:31,681 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 992 1000) no Hoare annotation was computed. [2018-11-18 11:54:31,681 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:54:31,681 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 11:54:31,681 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:54:31,681 INFO L425 ceAbstractionStarter]: For program point activatePumpEXIT(lines 687 703) no Hoare annotation was computed. [2018-11-18 11:54:31,681 INFO L421 ceAbstractionStarter]: At program point L698(line 698) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-18 11:54:31,681 INFO L425 ceAbstractionStarter]: For program point L698-1(lines 687 703) no Hoare annotation was computed. [2018-11-18 11:54:31,681 INFO L421 ceAbstractionStarter]: At program point activatePumpENTRY(lines 687 703) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-18 11:54:31,681 INFO L425 ceAbstractionStarter]: For program point L694(lines 694 700) no Hoare annotation was computed. [2018-11-18 11:54:31,682 INFO L421 ceAbstractionStarter]: At program point L692(line 692) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-18 11:54:31,682 INFO L425 ceAbstractionStarter]: For program point L692-1(line 692) no Hoare annotation was computed. [2018-11-18 11:54:31,682 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 768 786) no Hoare annotation was computed. [2018-11-18 11:54:31,682 INFO L425 ceAbstractionStarter]: For program point L777(lines 777 781) no Hoare annotation was computed. [2018-11-18 11:54:31,682 INFO L428 ceAbstractionStarter]: At program point L775(line 775) the Hoare annotation is: true [2018-11-18 11:54:31,682 INFO L425 ceAbstractionStarter]: For program point L777-2(lines 777 781) no Hoare annotation was computed. [2018-11-18 11:54:31,682 INFO L425 ceAbstractionStarter]: For program point L775-1(line 775) no Hoare annotation was computed. [2018-11-18 11:54:31,682 INFO L428 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 768 786) the Hoare annotation is: true [2018-11-18 11:54:31,682 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 768 786) no Hoare annotation was computed. [2018-11-18 11:54:31,682 INFO L428 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 969 977) the Hoare annotation is: true [2018-11-18 11:54:31,682 INFO L425 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 969 977) no Hoare annotation was computed. [2018-11-18 11:54:31,682 INFO L425 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 969 977) no Hoare annotation was computed. [2018-11-18 11:54:31,682 INFO L425 ceAbstractionStarter]: For program point L929-1(lines 925 936) no Hoare annotation was computed. [2018-11-18 11:54:31,682 INFO L421 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 925 936) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 0)) (or (= ~methaneLevelCritical~0 1) (not (= |old(~methaneLevelCritical~0)| 1)) .cse0 .cse1 .cse2))) [2018-11-18 11:54:31,682 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 925 936) no Hoare annotation was computed. [2018-11-18 11:54:31,683 INFO L428 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 937 945) the Hoare annotation is: true [2018-11-18 11:54:31,683 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 937 945) no Hoare annotation was computed. [2018-11-18 11:54:31,683 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 937 945) no Hoare annotation was computed. [2018-11-18 11:54:31,683 INFO L421 ceAbstractionStarter]: At program point L608(line 608) the Hoare annotation is: (let ((.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< |old(~waterLevel~0)| 1))) (and (or .cse0 .cse1 (= ~waterLevel~0 |old(~waterLevel~0)|) .cse2) (or .cse0 .cse2 .cse3 (not (= |old(~waterLevel~0)| 1))) (or (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse3) (or (< |old(~waterLevel~0)| 2) .cse2)) (or .cse0 (not (= ~systemActive~0 0)) .cse1))) [2018-11-18 11:54:31,683 INFO L421 ceAbstractionStarter]: At program point L606(lines 606 612) the Hoare annotation is: (let ((.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (and .cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 (<= |old(~waterLevel~0)| 1) .cse1 .cse2) (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse3) (let ((.cse4 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or (and (<= 2 ~waterLevel~0) .cse4) (and (= 0 ~pumpRunning~0) .cse4) (or (< |old(~waterLevel~0)| 2) .cse1))) (or .cse0 (not (= ~systemActive~0 0)) (< |old(~waterLevel~0)| 1) .cse3)))) [2018-11-18 11:54:31,683 INFO L421 ceAbstractionStarter]: At program point L601(line 601) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< |old(~waterLevel~0)| 1)) (.cse0 (not (= ~systemActive~0 1)))) (and (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (< |old(~waterLevel~0)| 2) .cse0)) (or .cse1 (not (= ~systemActive~0 0)) .cse2) (or .cse1 .cse2 .cse0))) [2018-11-18 11:54:31,683 INFO L425 ceAbstractionStarter]: For program point L599(lines 598 617) no Hoare annotation was computed. [2018-11-18 11:54:31,683 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 595 618) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 (or (< |old(~waterLevel~0)| 2) .cse1)) (or .cse2 .cse1 .cse0 (not (= |old(~waterLevel~0)| 1))) (or .cse2 (not (= ~systemActive~0 0)) (< |old(~waterLevel~0)| 1) .cse0))) [2018-11-18 11:54:31,683 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 595 618) no Hoare annotation was computed. [2018-11-18 11:54:31,683 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 595 618) no Hoare annotation was computed. [2018-11-18 11:54:31,683 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 80 109) no Hoare annotation was computed. [2018-11-18 11:54:31,683 INFO L425 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-18 11:54:31,684 INFO L425 ceAbstractionStarter]: For program point L94(lines 94 98) no Hoare annotation was computed. [2018-11-18 11:54:31,684 INFO L428 ceAbstractionStarter]: At program point L94-1(lines 94 98) the Hoare annotation is: true [2018-11-18 11:54:31,684 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 80 109) the Hoare annotation is: true [2018-11-18 11:54:31,684 INFO L425 ceAbstractionStarter]: For program point L90-1(lines 90 104) no Hoare annotation was computed. [2018-11-18 11:54:31,684 INFO L428 ceAbstractionStarter]: At program point L90-3(lines 90 104) the Hoare annotation is: true [2018-11-18 11:54:31,684 INFO L428 ceAbstractionStarter]: At program point L86(line 86) the Hoare annotation is: true [2018-11-18 11:54:31,684 INFO L425 ceAbstractionStarter]: For program point L86-1(line 86) no Hoare annotation was computed. [2018-11-18 11:54:31,684 INFO L428 ceAbstractionStarter]: At program point L105(lines 80 109) the Hoare annotation is: true [2018-11-18 11:54:31,684 INFO L425 ceAbstractionStarter]: For program point L101(line 101) no Hoare annotation was computed. [2018-11-18 11:54:31,684 INFO L421 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 901 912) the Hoare annotation is: (or (= ~waterLevel~0 |old(~waterLevel~0)|) (or (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1)))) [2018-11-18 11:54:31,684 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 901 912) no Hoare annotation was computed. [2018-11-18 11:54:31,684 INFO L425 ceAbstractionStarter]: For program point L905-1(lines 901 912) no Hoare annotation was computed. [2018-11-18 11:54:31,684 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 137 143) no Hoare annotation was computed. [2018-11-18 11:54:31,684 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 137 143) the Hoare annotation is: true [2018-11-18 11:54:31,684 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:54:31,685 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 11:54:31,685 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 11:54:31,685 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:54:31,685 INFO L425 ceAbstractionStarter]: For program point startSystemEXIT(lines 821 828) no Hoare annotation was computed. [2018-11-18 11:54:31,685 INFO L421 ceAbstractionStarter]: At program point startSystemENTRY(lines 821 828) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 1)) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= |old(~systemActive~0)| 1))) (.cse2 (not (= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse3) (or (not (= ~methaneLevelCritical~0 1)) .cse3 .cse0 .cse1 .cse2) (or (= |old(~systemActive~0)| 0) (not (= ~systemActive~0 0)) (< ~waterLevel~0 2)))) [2018-11-18 11:54:31,685 INFO L425 ceAbstractionStarter]: For program point startSystemFINAL(lines 821 828) no Hoare annotation was computed. [2018-11-18 11:54:31,685 INFO L421 ceAbstractionStarter]: At program point L641(line 641) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~5) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (or .cse0 .cse1) (< ~waterLevel~0 2) .cse2) (or .cse0 .cse2 .cse1 (not (= ~waterLevel~0 1))))) [2018-11-18 11:54:31,685 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 627 651) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= ~systemActive~0 1))) [2018-11-18 11:54:31,685 INFO L421 ceAbstractionStarter]: At program point L637(line 637) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-18 11:54:31,685 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 627 651) no Hoare annotation was computed. [2018-11-18 11:54:31,685 INFO L425 ceAbstractionStarter]: For program point L635(lines 635 643) no Hoare annotation was computed. [2018-11-18 11:54:31,685 INFO L421 ceAbstractionStarter]: At program point L633(line 633) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= ~systemActive~0 1))) [2018-11-18 11:54:31,686 INFO L425 ceAbstractionStarter]: For program point L633-1(line 633) no Hoare annotation was computed. [2018-11-18 11:54:31,686 INFO L425 ceAbstractionStarter]: For program point L631(lines 631 648) no Hoare annotation was computed. [2018-11-18 11:54:31,686 INFO L421 ceAbstractionStarter]: At program point L646(line 646) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-18 11:54:31,686 INFO L425 ceAbstractionStarter]: For program point L646-1(lines 627 651) no Hoare annotation was computed. [2018-11-18 11:54:31,686 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 913 924) no Hoare annotation was computed. [2018-11-18 11:54:31,686 INFO L425 ceAbstractionStarter]: For program point L917-1(lines 913 924) no Hoare annotation was computed. [2018-11-18 11:54:31,686 INFO L421 ceAbstractionStarter]: At program point waterRiseENTRY(lines 913 924) the Hoare annotation is: (let ((.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< |old(~waterLevel~0)| 1)) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse3 .cse2 (< |old(~waterLevel~0)| 2)) (or .cse0 (not (= ~systemActive~0 0)) .cse1 .cse3))) [2018-11-18 11:54:31,686 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 574 581) no Hoare annotation was computed. [2018-11-18 11:54:31,686 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 574 581) the Hoare annotation is: true [2018-11-18 11:54:31,686 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 578) no Hoare annotation was computed. [2018-11-18 11:54:31,686 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 574 581) no Hoare annotation was computed. [2018-11-18 11:54:31,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:54:31 BoogieIcfgContainer [2018-11-18 11:54:31,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 11:54:31,696 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:54:31,696 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:54:31,696 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:54:31,697 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:54:11" (3/4) ... [2018-11-18 11:54:31,699 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 11:54:31,704 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-18 11:54:31,704 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-18 11:54:31,704 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-18 11:54:31,704 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 11:54:31,704 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure stopSystem [2018-11-18 11:54:31,705 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-18 11:54:31,705 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-18 11:54:31,705 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-18 11:54:31,705 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-18 11:54:31,705 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-18 11:54:31,705 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-18 11:54:31,705 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-18 11:54:31,705 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-18 11:54:31,705 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 11:54:31,705 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-18 11:54:31,705 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-11-18 11:54:31,705 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-18 11:54:31,705 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 11:54:31,705 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-18 11:54:31,705 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-18 11:54:31,706 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-18 11:54:31,706 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 11:54:31,706 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-18 11:54:31,706 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 11:54:31,706 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 11:54:31,706 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-18 11:54:31,706 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-18 11:54:31,706 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-11-18 11:54:31,706 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 11:54:31,706 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 11:54:31,707 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-18 11:54:31,713 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2018-11-18 11:54:31,713 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 11:54:31,713 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 11:54:31,736 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0) || !(\old(systemActive) == 1)) || (((systemActive == 0 && 0 == pumpRunning) && 1 <= waterLevel) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (((splverifierCounter == 0 && waterLevel == \old(waterLevel)) && pumpRunning == 0) && systemActive == 1) [2018-11-18 11:54:31,736 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 11:54:31,773 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_629bd5d8-ef73-4f31-b506-3d7905a64ed0/bin-2019/utaipan/witness.graphml [2018-11-18 11:54:31,774 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:54:31,774 INFO L168 Benchmark]: Toolchain (without parser) took 21639.52 ms. Allocated memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: 1.2 GB). Free memory was 950.0 MB in the beginning and 986.6 MB in the end (delta: -36.6 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-11-18 11:54:31,775 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:54:31,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -155.6 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2018-11-18 11:54:31,775 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.90 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 11:54:31,775 INFO L168 Benchmark]: Boogie Preprocessor took 24.81 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:54:31,776 INFO L168 Benchmark]: RCFGBuilder took 498.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 63.5 MB). Peak memory consumption was 63.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:54:31,776 INFO L168 Benchmark]: TraceAbstraction took 20651.01 ms. Allocated memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: 1.1 GB). Free memory was 1.0 GB in the beginning and 986.6 MB in the end (delta: 52.1 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-11-18 11:54:31,776 INFO L168 Benchmark]: Witness Printer took 77.52 ms. Allocated memory is still 2.3 GB. Free memory is still 986.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:54:31,777 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 358.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -155.6 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.90 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 24.81 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 498.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 63.5 MB). Peak memory consumption was 63.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 20651.01 ms. Allocated memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: 1.1 GB). Free memory was 1.0 GB in the beginning and 986.6 MB in the end (delta: 52.1 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. * Witness Printer took 77.52 ms. Allocated memory is still 2.3 GB. Free memory is still 986.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 578]: 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: 90]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 840]: Loop Invariant Derived loop invariant: (((((((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0) || !(\old(systemActive) == 1)) || (((systemActive == 0 && 0 == pumpRunning) && 1 <= waterLevel) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (((splverifierCounter == 0 && waterLevel == \old(waterLevel)) && pumpRunning == 0) && systemActive == 1) - InvariantResult [Line: 80]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 839]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 32 procedures, 168 locations, 1 error locations. SAFE Result, 20.6s OverallTime, 13 OverallIterations, 3 TraceHistogramMax, 9.8s AutomataDifference, 0.0s DeadEndRemovalTime, 2.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 2689 SDtfs, 4155 SDslu, 7968 SDs, 0 SdLazy, 6381 SolverSat, 2214 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 2081 GetRequests, 1876 SyntacticMatches, 28 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2166occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.8s AbstIntTime, 7 AbstIntIterations, 2 AbstIntStrong, 0.9982818235392003 AbsIntWeakeningRatio, 0.875 AbsIntAvgWeakeningVarsNumRemoved, 38.828947368421055 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 1009 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 69 LocationsWithAnnotation, 5325 PreInvPairs, 5402 NumberOfFragments, 1416 HoareAnnotationTreeSize, 5325 FomulaSimplifications, 38337 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 69 FomulaSimplificationsInter, 14835 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 2311 NumberOfCodeBlocks, 2311 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3079 ConstructedInterpolants, 0 QuantifiedInterpolants, 614432 SizeOfPredicates, 19 NumberOfNonLiveVariables, 4016 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 23 InterpolantComputations, 9 PerfectInterpolantSequences, 843/912 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...