./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product61_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_03d780aa-525f-4235-8821-4593cc9e2c33/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_03d780aa-525f-4235-8821-4593cc9e2c33/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_03d780aa-525f-4235-8821-4593cc9e2c33/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_03d780aa-525f-4235-8821-4593cc9e2c33/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product61_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_03d780aa-525f-4235-8821-4593cc9e2c33/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_03d780aa-525f-4235-8821-4593cc9e2c33/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 62215579489c65348c20dcb35d4d11bc17ff5b74 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 07:30:11,708 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 07:30:11,709 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 07:30:11,715 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 07:30:11,715 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 07:30:11,715 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 07:30:11,716 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 07:30:11,717 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 07:30:11,718 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 07:30:11,718 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 07:30:11,718 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 07:30:11,719 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 07:30:11,719 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 07:30:11,719 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 07:30:11,720 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 07:30:11,720 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 07:30:11,721 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 07:30:11,722 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 07:30:11,723 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 07:30:11,723 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 07:30:11,724 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 07:30:11,724 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 07:30:11,725 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 07:30:11,726 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 07:30:11,726 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 07:30:11,726 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 07:30:11,727 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 07:30:11,727 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 07:30:11,727 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 07:30:11,728 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 07:30:11,728 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 07:30:11,728 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 07:30:11,729 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 07:30:11,729 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 07:30:11,729 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 07:30:11,729 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 07:30:11,730 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_03d780aa-525f-4235-8821-4593cc9e2c33/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 07:30:11,737 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 07:30:11,737 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 07:30:11,737 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 07:30:11,737 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 07:30:11,737 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 07:30:11,738 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 07:30:11,738 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 07:30:11,738 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 07:30:11,738 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 07:30:11,738 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 07:30:11,738 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 07:30:11,738 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 07:30:11,738 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 07:30:11,739 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 07:30:11,739 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 07:30:11,739 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 07:30:11,739 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 07:30:11,739 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 07:30:11,739 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 07:30:11,739 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 07:30:11,739 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 07:30:11,739 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 07:30:11,739 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 07:30:11,739 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 07:30:11,740 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 07:30:11,740 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 07:30:11,740 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 07:30:11,740 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 07:30:11,740 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 07:30:11,740 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 07:30:11,740 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 07:30:11,740 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 07:30:11,740 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 07:30:11,740 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 07:30:11,741 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 07:30:11,741 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 07:30:11,741 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_03d780aa-525f-4235-8821-4593cc9e2c33/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62215579489c65348c20dcb35d4d11bc17ff5b74 [2018-12-03 07:30:11,759 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 07:30:11,768 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 07:30:11,771 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 07:30:11,772 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 07:30:11,772 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 07:30:11,773 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_03d780aa-525f-4235-8821-4593cc9e2c33/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product61_true-unreach-call_false-termination.cil.c [2018-12-03 07:30:11,812 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03d780aa-525f-4235-8821-4593cc9e2c33/bin-2019/utaipan/data/60014382b/12244a2b25804953b2bea2a6258f90bf/FLAGf49be9cef [2018-12-03 07:30:12,239 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 07:30:12,239 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_03d780aa-525f-4235-8821-4593cc9e2c33/sv-benchmarks/c/product-lines/minepump_spec4_product61_true-unreach-call_false-termination.cil.c [2018-12-03 07:30:12,245 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03d780aa-525f-4235-8821-4593cc9e2c33/bin-2019/utaipan/data/60014382b/12244a2b25804953b2bea2a6258f90bf/FLAGf49be9cef [2018-12-03 07:30:12,253 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_03d780aa-525f-4235-8821-4593cc9e2c33/bin-2019/utaipan/data/60014382b/12244a2b25804953b2bea2a6258f90bf [2018-12-03 07:30:12,255 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 07:30:12,256 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 07:30:12,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 07:30:12,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 07:30:12,258 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 07:30:12,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:30:12" (1/1) ... [2018-12-03 07:30:12,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:30:12, skipping insertion in model container [2018-12-03 07:30:12,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:30:12" (1/1) ... [2018-12-03 07:30:12,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 07:30:12,292 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 07:30:12,453 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:30:12,496 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 07:30:12,538 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:30:12,554 INFO L195 MainTranslator]: Completed translation [2018-12-03 07:30:12,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:30:12 WrapperNode [2018-12-03 07:30:12,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 07:30:12,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 07:30:12,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 07:30:12,555 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 07:30:12,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:30:12" (1/1) ... [2018-12-03 07:30:12,569 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:30:12" (1/1) ... [2018-12-03 07:30:12,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 07:30:12,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 07:30:12,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 07:30:12,575 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 07:30:12,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:30:12" (1/1) ... [2018-12-03 07:30:12,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:30:12" (1/1) ... [2018-12-03 07:30:12,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:30:12" (1/1) ... [2018-12-03 07:30:12,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:30:12" (1/1) ... [2018-12-03 07:30:12,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:30:12" (1/1) ... [2018-12-03 07:30:12,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:30:12" (1/1) ... [2018-12-03 07:30:12,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:30:12" (1/1) ... [2018-12-03 07:30:12,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 07:30:12,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 07:30:12,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 07:30:12,598 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 07:30:12,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:30:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03d780aa-525f-4235-8821-4593cc9e2c33/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 [2018-12-03 07:30:12,629 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-03 07:30:12,629 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-03 07:30:12,630 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-03 07:30:12,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-03 07:30:12,630 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 07:30:12,630 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 07:30:12,630 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-03 07:30:12,630 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-03 07:30:12,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 07:30:12,630 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-03 07:30:12,630 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-03 07:30:12,630 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-03 07:30:12,630 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-03 07:30:12,630 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-03 07:30:12,630 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-03 07:30:12,631 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-03 07:30:12,631 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-03 07:30:12,631 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-03 07:30:12,631 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-03 07:30:12,631 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-12-03 07:30:12,631 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-12-03 07:30:12,631 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-03 07:30:12,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-03 07:30:12,631 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-03 07:30:12,631 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-03 07:30:12,631 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-03 07:30:12,631 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-03 07:30:12,631 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-03 07:30:12,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-03 07:30:12,631 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-03 07:30:12,632 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-03 07:30:12,632 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-03 07:30:12,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-03 07:30:12,632 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-03 07:30:12,632 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-03 07:30:12,632 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-03 07:30:12,632 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-03 07:30:12,632 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-03 07:30:12,632 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-03 07:30:12,632 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-03 07:30:12,632 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-03 07:30:12,632 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-03 07:30:12,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-03 07:30:12,633 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-03 07:30:12,633 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-03 07:30:12,633 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-12-03 07:30:12,633 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-12-03 07:30:12,633 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-03 07:30:12,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-03 07:30:12,633 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-03 07:30:12,633 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-03 07:30:12,633 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-03 07:30:12,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-03 07:30:12,633 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-03 07:30:12,633 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-03 07:30:12,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-03 07:30:12,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 07:30:12,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 07:30:12,634 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-03 07:30:12,634 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-03 07:30:12,634 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-03 07:30:12,634 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-03 07:30:12,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 07:30:12,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 07:30:12,963 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 07:30:12,963 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-03 07:30:12,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:30:12 BoogieIcfgContainer [2018-12-03 07:30:12,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 07:30:12,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 07:30:12,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 07:30:12,966 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 07:30:12,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 07:30:12" (1/3) ... [2018-12-03 07:30:12,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c6e20b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:30:12, skipping insertion in model container [2018-12-03 07:30:12,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:30:12" (2/3) ... [2018-12-03 07:30:12,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c6e20b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:30:12, skipping insertion in model container [2018-12-03 07:30:12,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:30:12" (3/3) ... [2018-12-03 07:30:12,968 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product61_true-unreach-call_false-termination.cil.c [2018-12-03 07:30:12,975 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 07:30:12,980 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 07:30:12,990 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 07:30:13,009 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 07:30:13,009 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 07:30:13,009 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 07:30:13,009 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 07:30:13,009 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 07:30:13,010 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 07:30:13,010 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 07:30:13,010 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 07:30:13,022 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2018-12-03 07:30:13,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-03 07:30:13,028 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:30:13,028 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:30:13,029 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:30:13,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:13,033 INFO L82 PathProgramCache]: Analyzing trace with hash 414454525, now seen corresponding path program 1 times [2018-12-03 07:30:13,034 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:30:13,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:13,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:30:13,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:13,064 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:30:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:13,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:30:13,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:30:13,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 07:30:13,169 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:30:13,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 07:30:13,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 07:30:13,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 07:30:13,182 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 2 states. [2018-12-03 07:30:13,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:30:13,207 INFO L93 Difference]: Finished difference Result 306 states and 379 transitions. [2018-12-03 07:30:13,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 07:30:13,208 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-03 07:30:13,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:30:13,215 INFO L225 Difference]: With dead ends: 306 [2018-12-03 07:30:13,215 INFO L226 Difference]: Without dead ends: 153 [2018-12-03 07:30:13,217 INFO L631 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 [2018-12-03 07:30:13,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-12-03 07:30:13,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2018-12-03 07:30:13,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-12-03 07:30:13,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 181 transitions. [2018-12-03 07:30:13,249 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 181 transitions. Word has length 46 [2018-12-03 07:30:13,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:30:13,249 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 181 transitions. [2018-12-03 07:30:13,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 07:30:13,249 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 181 transitions. [2018-12-03 07:30:13,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-03 07:30:13,251 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:30:13,251 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:30:13,251 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:30:13,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:13,252 INFO L82 PathProgramCache]: Analyzing trace with hash -369712952, now seen corresponding path program 1 times [2018-12-03 07:30:13,252 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:30:13,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:13,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:30:13,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:13,253 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:30:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:13,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:30:13,304 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:30:13,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 07:30:13,304 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:30:13,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 07:30:13,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 07:30:13,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 07:30:13,306 INFO L87 Difference]: Start difference. First operand 153 states and 181 transitions. Second operand 3 states. [2018-12-03 07:30:13,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:30:13,319 INFO L93 Difference]: Finished difference Result 255 states and 301 transitions. [2018-12-03 07:30:13,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 07:30:13,320 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-03 07:30:13,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:30:13,321 INFO L225 Difference]: With dead ends: 255 [2018-12-03 07:30:13,321 INFO L226 Difference]: Without dead ends: 144 [2018-12-03 07:30:13,321 INFO L631 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 [2018-12-03 07:30:13,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-12-03 07:30:13,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-12-03 07:30:13,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-12-03 07:30:13,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 169 transitions. [2018-12-03 07:30:13,330 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 169 transitions. Word has length 47 [2018-12-03 07:30:13,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:30:13,330 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 169 transitions. [2018-12-03 07:30:13,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 07:30:13,330 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 169 transitions. [2018-12-03 07:30:13,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-03 07:30:13,331 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:30:13,331 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:30:13,331 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:30:13,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:13,331 INFO L82 PathProgramCache]: Analyzing trace with hash 928795825, now seen corresponding path program 1 times [2018-12-03 07:30:13,331 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:30:13,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:13,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:30:13,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:13,332 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:30:13,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:13,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:30:13,392 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:30:13,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 07:30:13,392 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:30:13,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 07:30:13,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 07:30:13,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-03 07:30:13,393 INFO L87 Difference]: Start difference. First operand 144 states and 169 transitions. Second operand 7 states. [2018-12-03 07:30:13,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:30:13,564 INFO L93 Difference]: Finished difference Result 264 states and 315 transitions. [2018-12-03 07:30:13,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 07:30:13,565 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-03 07:30:13,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:30:13,566 INFO L225 Difference]: With dead ends: 264 [2018-12-03 07:30:13,566 INFO L226 Difference]: Without dead ends: 144 [2018-12-03 07:30:13,567 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-03 07:30:13,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-12-03 07:30:13,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-12-03 07:30:13,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-12-03 07:30:13,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 168 transitions. [2018-12-03 07:30:13,575 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 168 transitions. Word has length 51 [2018-12-03 07:30:13,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:30:13,575 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 168 transitions. [2018-12-03 07:30:13,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 07:30:13,576 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 168 transitions. [2018-12-03 07:30:13,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-12-03 07:30:13,577 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:30:13,577 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:30:13,577 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:30:13,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:13,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1654083998, now seen corresponding path program 1 times [2018-12-03 07:30:13,577 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:30:13,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:13,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:30:13,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:13,578 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:30:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:13,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:30:13,646 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:30:13,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-03 07:30:13,646 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:30:13,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-03 07:30:13,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-03 07:30:13,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-03 07:30:13,647 INFO L87 Difference]: Start difference. First operand 144 states and 168 transitions. Second operand 5 states. [2018-12-03 07:30:13,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:30:13,989 INFO L93 Difference]: Finished difference Result 376 states and 452 transitions. [2018-12-03 07:30:13,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 07:30:13,989 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2018-12-03 07:30:13,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:30:13,991 INFO L225 Difference]: With dead ends: 376 [2018-12-03 07:30:13,991 INFO L226 Difference]: Without dead ends: 256 [2018-12-03 07:30:13,991 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-03 07:30:13,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2018-12-03 07:30:14,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 238. [2018-12-03 07:30:14,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2018-12-03 07:30:14,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 268 transitions. [2018-12-03 07:30:14,006 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 268 transitions. Word has length 69 [2018-12-03 07:30:14,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:30:14,006 INFO L480 AbstractCegarLoop]: Abstraction has 238 states and 268 transitions. [2018-12-03 07:30:14,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-03 07:30:14,006 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 268 transitions. [2018-12-03 07:30:14,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-03 07:30:14,007 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:30:14,007 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:30:14,007 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:30:14,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:14,008 INFO L82 PathProgramCache]: Analyzing trace with hash -548786926, now seen corresponding path program 1 times [2018-12-03 07:30:14,008 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:30:14,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:14,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:30:14,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:14,008 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:30:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:14,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:30:14,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:30:14,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-03 07:30:14,097 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:30:14,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 07:30:14,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 07:30:14,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-03 07:30:14,098 INFO L87 Difference]: Start difference. First operand 238 states and 268 transitions. Second operand 10 states. [2018-12-03 07:30:14,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:30:14,414 INFO L93 Difference]: Finished difference Result 771 states and 939 transitions. [2018-12-03 07:30:14,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-03 07:30:14,414 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2018-12-03 07:30:14,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:30:14,417 INFO L225 Difference]: With dead ends: 771 [2018-12-03 07:30:14,417 INFO L226 Difference]: Without dead ends: 557 [2018-12-03 07:30:14,418 INFO L631 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 [2018-12-03 07:30:14,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2018-12-03 07:30:14,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 547. [2018-12-03 07:30:14,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2018-12-03 07:30:14,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 636 transitions. [2018-12-03 07:30:14,444 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 636 transitions. Word has length 83 [2018-12-03 07:30:14,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:30:14,445 INFO L480 AbstractCegarLoop]: Abstraction has 547 states and 636 transitions. [2018-12-03 07:30:14,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 07:30:14,445 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 636 transitions. [2018-12-03 07:30:14,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-12-03 07:30:14,448 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:30:14,448 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:30:14,448 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:30:14,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:14,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1129696396, now seen corresponding path program 1 times [2018-12-03 07:30:14,448 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:30:14,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:14,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:30:14,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:14,449 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:30:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:14,509 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-03 07:30:14,509 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:30:14,509 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:30:14,510 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 151 with the following transitions: [2018-12-03 07:30:14,511 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [81], [83], [84], [87], [89], [92], [99], [102], [104], [113], [117], [121], [124], [127], [129], [135], [137], [140], [155], [156], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [179], [183], [184], [218], [219], [222], [225], [229], [235], [238], [242], [243], [247], [250], [252], [255], [265], [268], [272], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [298], [299], [302], [304], [305], [306], [307], [308], [309], [312], [313], [314], [315], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345] [2018-12-03 07:30:14,542 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:30:14,542 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:30:16,048 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 07:30:16,049 INFO L272 AbstractInterpreter]: Visited 123 different actions 872 times. Merged at 18 different actions 68 times. Never widened. Performed 36285 root evaluator evaluations with a maximum evaluation depth of 3. Performed 36285 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 13 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-03 07:30:16,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:16,055 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 07:30:16,055 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:30:16,055 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03d780aa-525f-4235-8821-4593cc9e2c33/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 [2018-12-03 07:30:16,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:30:16,062 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 07:30:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:16,144 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:30:16,252 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:30:16,252 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:30:16,472 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-12-03 07:30:16,488 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-03 07:30:16,488 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6, 9] total 16 [2018-12-03 07:30:16,488 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:30:16,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-03 07:30:16,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-03 07:30:16,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2018-12-03 07:30:16,489 INFO L87 Difference]: Start difference. First operand 547 states and 636 transitions. Second operand 8 states. [2018-12-03 07:30:17,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:30:17,195 INFO L93 Difference]: Finished difference Result 1389 states and 1780 transitions. [2018-12-03 07:30:17,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-03 07:30:17,195 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 150 [2018-12-03 07:30:17,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:30:17,198 INFO L225 Difference]: With dead ends: 1389 [2018-12-03 07:30:17,198 INFO L226 Difference]: Without dead ends: 986 [2018-12-03 07:30:17,199 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 289 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2018-12-03 07:30:17,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2018-12-03 07:30:17,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 912. [2018-12-03 07:30:17,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 912 states. [2018-12-03 07:30:17,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1107 transitions. [2018-12-03 07:30:17,234 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1107 transitions. Word has length 150 [2018-12-03 07:30:17,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:30:17,234 INFO L480 AbstractCegarLoop]: Abstraction has 912 states and 1107 transitions. [2018-12-03 07:30:17,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-03 07:30:17,234 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1107 transitions. [2018-12-03 07:30:17,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-12-03 07:30:17,236 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:30:17,236 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:30:17,236 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:30:17,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:17,236 INFO L82 PathProgramCache]: Analyzing trace with hash 209701970, now seen corresponding path program 1 times [2018-12-03 07:30:17,236 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:30:17,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:17,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:30:17,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:17,237 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:30:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:17,294 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-03 07:30:17,295 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:30:17,295 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:30:17,295 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-12-03 07:30:17,295 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [81], [83], [84], [87], [89], [92], [99], [102], [104], [113], [117], [121], [127], [129], [135], [137], [140], [155], [156], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [179], [183], [184], [218], [219], [222], [225], [229], [235], [238], [242], [243], [247], [250], [252], [255], [265], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [298], [299], [302], [304], [305], [306], [307], [308], [309], [312], [313], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345] [2018-12-03 07:30:17,298 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:30:17,299 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:30:17,859 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 07:30:17,859 INFO L272 AbstractInterpreter]: Visited 118 different actions 438 times. Merged at 16 different actions 30 times. Never widened. Performed 13930 root evaluator evaluations with a maximum evaluation depth of 3. Performed 13930 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 2 different actions. Largest state had 132 variables. [2018-12-03 07:30:17,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:17,862 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 07:30:17,862 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:30:17,862 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03d780aa-525f-4235-8821-4593cc9e2c33/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 [2018-12-03 07:30:17,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:30:17,868 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 07:30:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:17,935 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:30:17,949 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-03 07:30:17,949 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:30:18,111 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-03 07:30:18,126 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-03 07:30:18,126 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-03 07:30:18,126 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:30:18,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 07:30:18,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 07:30:18,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 07:30:18,127 INFO L87 Difference]: Start difference. First operand 912 states and 1107 transitions. Second operand 6 states. [2018-12-03 07:30:18,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:30:18,179 INFO L93 Difference]: Finished difference Result 1828 states and 2310 transitions. [2018-12-03 07:30:18,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 07:30:18,180 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2018-12-03 07:30:18,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:30:18,183 INFO L225 Difference]: With dead ends: 1828 [2018-12-03 07:30:18,184 INFO L226 Difference]: Without dead ends: 940 [2018-12-03 07:30:18,186 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 289 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-03 07:30:18,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2018-12-03 07:30:18,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 932. [2018-12-03 07:30:18,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 932 states. [2018-12-03 07:30:18,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1131 transitions. [2018-12-03 07:30:18,231 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1131 transitions. Word has length 146 [2018-12-03 07:30:18,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:30:18,231 INFO L480 AbstractCegarLoop]: Abstraction has 932 states and 1131 transitions. [2018-12-03 07:30:18,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 07:30:18,232 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1131 transitions. [2018-12-03 07:30:18,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-12-03 07:30:18,233 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:30:18,234 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:30:18,234 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:30:18,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:18,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1409272944, now seen corresponding path program 1 times [2018-12-03 07:30:18,234 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:30:18,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:18,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:30:18,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:18,235 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:30:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:18,299 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-03 07:30:18,299 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:30:18,299 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:30:18,299 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-12-03 07:30:18,300 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [81], [83], [84], [87], [89], [92], [99], [102], [104], [113], [117], [121], [127], [129], [135], [137], [140], [155], [156], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [181], [183], [184], [218], [219], [222], [225], [229], [235], [238], [242], [243], [247], [250], [252], [255], [265], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [298], [299], [302], [304], [305], [306], [307], [308], [309], [312], [313], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345] [2018-12-03 07:30:18,302 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:30:18,302 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:30:18,390 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 07:30:18,390 INFO L272 AbstractInterpreter]: Visited 55 different actions 55 times. Never merged. Never widened. Performed 2061 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2061 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-03 07:30:18,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:18,391 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 07:30:18,511 INFO L227 lantSequenceWeakener]: Weakened 65 states. On average, predicates are now at 96.44% of their original sizes. [2018-12-03 07:30:18,511 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 07:30:18,532 INFO L418 sIntCurrentIteration]: We unified 145 AI predicates to 145 [2018-12-03 07:30:18,533 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 07:30:18,533 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 07:30:18,533 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2018-12-03 07:30:18,533 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:30:18,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 07:30:18,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 07:30:18,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-12-03 07:30:18,534 INFO L87 Difference]: Start difference. First operand 932 states and 1131 transitions. Second operand 9 states. [2018-12-03 07:30:19,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:30:19,150 INFO L93 Difference]: Finished difference Result 1900 states and 2316 transitions. [2018-12-03 07:30:19,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 07:30:19,150 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 146 [2018-12-03 07:30:19,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:30:19,152 INFO L225 Difference]: With dead ends: 1900 [2018-12-03 07:30:19,152 INFO L226 Difference]: Without dead ends: 992 [2018-12-03 07:30:19,154 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 148 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-03 07:30:19,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2018-12-03 07:30:19,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 990. [2018-12-03 07:30:19,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 990 states. [2018-12-03 07:30:19,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1194 transitions. [2018-12-03 07:30:19,184 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1194 transitions. Word has length 146 [2018-12-03 07:30:19,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:30:19,184 INFO L480 AbstractCegarLoop]: Abstraction has 990 states and 1194 transitions. [2018-12-03 07:30:19,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 07:30:19,184 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1194 transitions. [2018-12-03 07:30:19,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-12-03 07:30:19,185 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:30:19,185 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:30:19,185 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:30:19,186 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:19,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1442480151, now seen corresponding path program 1 times [2018-12-03 07:30:19,186 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:30:19,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:19,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:30:19,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:19,186 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:30:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:19,261 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-03 07:30:19,261 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:30:19,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-03 07:30:19,261 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:30:19,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 07:30:19,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 07:30:19,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-03 07:30:19,262 INFO L87 Difference]: Start difference. First operand 990 states and 1194 transitions. Second operand 9 states. [2018-12-03 07:30:19,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:30:19,674 INFO L93 Difference]: Finished difference Result 2635 states and 3262 transitions. [2018-12-03 07:30:19,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-03 07:30:19,674 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 150 [2018-12-03 07:30:19,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:30:19,679 INFO L225 Difference]: With dead ends: 2635 [2018-12-03 07:30:19,679 INFO L226 Difference]: Without dead ends: 1727 [2018-12-03 07:30:19,681 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2018-12-03 07:30:19,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1727 states. [2018-12-03 07:30:19,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1727 to 1718. [2018-12-03 07:30:19,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1718 states. [2018-12-03 07:30:19,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1718 states to 1718 states and 2058 transitions. [2018-12-03 07:30:19,730 INFO L78 Accepts]: Start accepts. Automaton has 1718 states and 2058 transitions. Word has length 150 [2018-12-03 07:30:19,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:30:19,731 INFO L480 AbstractCegarLoop]: Abstraction has 1718 states and 2058 transitions. [2018-12-03 07:30:19,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 07:30:19,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1718 states and 2058 transitions. [2018-12-03 07:30:19,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-12-03 07:30:19,733 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:30:19,733 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:30:19,733 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:30:19,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:19,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1948503892, now seen corresponding path program 1 times [2018-12-03 07:30:19,733 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:30:19,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:19,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:30:19,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:19,734 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:30:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:19,810 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-03 07:30:19,811 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:30:19,811 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:30:19,811 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 151 with the following transitions: [2018-12-03 07:30:19,811 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [81], [83], [84], [87], [89], [92], [99], [102], [104], [113], [117], [121], [127], [129], [132], [135], [137], [140], [155], [156], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [181], [183], [184], [189], [191], [218], [219], [222], [225], [229], [235], [238], [242], [243], [247], [250], [252], [255], [265], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [298], [299], [302], [304], [305], [306], [307], [308], [309], [312], [313], [316], [317], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345] [2018-12-03 07:30:19,813 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:30:19,813 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:30:20,003 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 07:30:20,003 INFO L272 AbstractInterpreter]: Visited 60 different actions 85 times. Merged at 3 different actions 3 times. Never widened. Performed 5237 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5237 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-03 07:30:20,004 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:20,004 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 07:30:20,136 INFO L227 lantSequenceWeakener]: Weakened 69 states. On average, predicates are now at 96.44% of their original sizes. [2018-12-03 07:30:20,137 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 07:30:20,195 INFO L418 sIntCurrentIteration]: We unified 149 AI predicates to 149 [2018-12-03 07:30:20,195 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 07:30:20,195 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 07:30:20,196 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [8] total 18 [2018-12-03 07:30:20,196 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:30:20,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-03 07:30:20,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-03 07:30:20,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-12-03 07:30:20,196 INFO L87 Difference]: Start difference. First operand 1718 states and 2058 transitions. Second operand 12 states. [2018-12-03 07:30:21,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:30:21,326 INFO L93 Difference]: Finished difference Result 3234 states and 3907 transitions. [2018-12-03 07:30:21,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-03 07:30:21,326 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 150 [2018-12-03 07:30:21,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:30:21,332 INFO L225 Difference]: With dead ends: 3234 [2018-12-03 07:30:21,332 INFO L226 Difference]: Without dead ends: 1596 [2018-12-03 07:30:21,336 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 156 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2018-12-03 07:30:21,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2018-12-03 07:30:21,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1540. [2018-12-03 07:30:21,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1540 states. [2018-12-03 07:30:21,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 1853 transitions. [2018-12-03 07:30:21,389 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 1853 transitions. Word has length 150 [2018-12-03 07:30:21,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:30:21,389 INFO L480 AbstractCegarLoop]: Abstraction has 1540 states and 1853 transitions. [2018-12-03 07:30:21,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-03 07:30:21,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 1853 transitions. [2018-12-03 07:30:21,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-12-03 07:30:21,391 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:30:21,391 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:30:21,391 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:30:21,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:21,391 INFO L82 PathProgramCache]: Analyzing trace with hash 840093701, now seen corresponding path program 1 times [2018-12-03 07:30:21,391 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:30:21,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:21,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:30:21,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:21,392 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:30:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:21,491 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-03 07:30:21,492 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:30:21,492 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:30:21,492 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 155 with the following transitions: [2018-12-03 07:30:21,492 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [82], [83], [84], [87], [89], [92], [99], [102], [104], [113], [117], [121], [124], [127], [129], [132], [135], [137], [140], [155], [156], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [181], [183], [184], [189], [191], [218], [219], [222], [225], [229], [235], [238], [242], [243], [247], [250], [252], [255], [265], [268], [272], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [298], [299], [302], [304], [305], [306], [307], [308], [309], [312], [313], [314], [315], [316], [317], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345] [2018-12-03 07:30:21,493 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:30:21,493 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:30:22,429 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 07:30:22,429 INFO L272 AbstractInterpreter]: Visited 128 different actions 757 times. Merged at 20 different actions 66 times. Never widened. Performed 30394 root evaluator evaluations with a maximum evaluation depth of 3. Performed 30394 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 16 fixpoints after 6 different actions. Largest state had 132 variables. [2018-12-03 07:30:22,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:22,430 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 07:30:22,430 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:30:22,430 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03d780aa-525f-4235-8821-4593cc9e2c33/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 [2018-12-03 07:30:22,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:30:22,436 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 07:30:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:22,509 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:30:22,592 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-03 07:30:22,592 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:30:23,326 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-03 07:30:23,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-03 07:30:23,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-03 07:30:23,341 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:30:23,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-03 07:30:23,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-03 07:30:23,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-03 07:30:23,342 INFO L87 Difference]: Start difference. First operand 1540 states and 1853 transitions. Second operand 8 states. [2018-12-03 07:30:23,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:30:23,512 INFO L93 Difference]: Finished difference Result 2799 states and 3420 transitions. [2018-12-03 07:30:23,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 07:30:23,512 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 154 [2018-12-03 07:30:23,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:30:23,515 INFO L225 Difference]: With dead ends: 2799 [2018-12-03 07:30:23,516 INFO L226 Difference]: Without dead ends: 1411 [2018-12-03 07:30:23,518 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 289 SyntacticMatches, 9 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-03 07:30:23,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1411 states. [2018-12-03 07:30:23,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1411 to 1408. [2018-12-03 07:30:23,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1408 states. [2018-12-03 07:30:23,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1684 transitions. [2018-12-03 07:30:23,560 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1684 transitions. Word has length 154 [2018-12-03 07:30:23,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:30:23,560 INFO L480 AbstractCegarLoop]: Abstraction has 1408 states and 1684 transitions. [2018-12-03 07:30:23,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-03 07:30:23,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1684 transitions. [2018-12-03 07:30:23,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-12-03 07:30:23,561 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:30:23,562 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:30:23,562 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:30:23,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:23,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1950280525, now seen corresponding path program 2 times [2018-12-03 07:30:23,562 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:30:23,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:23,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:30:23,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:23,563 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:30:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:23,614 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-12-03 07:30:23,614 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:30:23,614 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-03 07:30:23,614 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:30:23,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 07:30:23,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 07:30:23,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 07:30:23,615 INFO L87 Difference]: Start difference. First operand 1408 states and 1684 transitions. Second operand 6 states. [2018-12-03 07:30:23,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:30:23,729 INFO L93 Difference]: Finished difference Result 1437 states and 1717 transitions. [2018-12-03 07:30:23,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 07:30:23,730 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2018-12-03 07:30:23,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:30:23,734 INFO L225 Difference]: With dead ends: 1437 [2018-12-03 07:30:23,734 INFO L226 Difference]: Without dead ends: 1434 [2018-12-03 07:30:23,734 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-03 07:30:23,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2018-12-03 07:30:23,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1408. [2018-12-03 07:30:23,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1408 states. [2018-12-03 07:30:23,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1676 transitions. [2018-12-03 07:30:23,816 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1676 transitions. Word has length 154 [2018-12-03 07:30:23,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:30:23,817 INFO L480 AbstractCegarLoop]: Abstraction has 1408 states and 1676 transitions. [2018-12-03 07:30:23,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 07:30:23,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1676 transitions. [2018-12-03 07:30:23,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-12-03 07:30:23,818 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:30:23,818 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:30:23,818 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:30:23,818 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:23,818 INFO L82 PathProgramCache]: Analyzing trace with hash -327634403, now seen corresponding path program 1 times [2018-12-03 07:30:23,818 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:30:23,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:23,819 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-03 07:30:23,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:23,819 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:30:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:23,876 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-12-03 07:30:23,876 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:30:23,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-03 07:30:23,876 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:30:23,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 07:30:23,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 07:30:23,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-03 07:30:23,877 INFO L87 Difference]: Start difference. First operand 1408 states and 1676 transitions. Second operand 9 states. [2018-12-03 07:30:23,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:30:23,935 INFO L93 Difference]: Finished difference Result 2688 states and 3236 transitions. [2018-12-03 07:30:23,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-03 07:30:23,935 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2018-12-03 07:30:23,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:30:23,940 INFO L225 Difference]: With dead ends: 2688 [2018-12-03 07:30:23,941 INFO L226 Difference]: Without dead ends: 1432 [2018-12-03 07:30:23,943 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-12-03 07:30:23,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2018-12-03 07:30:23,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1423. [2018-12-03 07:30:23,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1423 states. [2018-12-03 07:30:23,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1691 transitions. [2018-12-03 07:30:23,990 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1691 transitions. Word has length 172 [2018-12-03 07:30:23,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:30:23,990 INFO L480 AbstractCegarLoop]: Abstraction has 1423 states and 1691 transitions. [2018-12-03 07:30:23,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 07:30:23,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1691 transitions. [2018-12-03 07:30:23,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-12-03 07:30:23,992 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:30:23,992 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:30:23,992 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:30:23,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:23,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1916348895, now seen corresponding path program 1 times [2018-12-03 07:30:23,992 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:30:23,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:23,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:30:23,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:23,993 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:30:24,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:24,071 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-03 07:30:24,071 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:30:24,071 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:30:24,071 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2018-12-03 07:30:24,071 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [56], [57], [58], [60], [63], [67], [68], [69], [72], [74], [75], [78], [82], [83], [84], [87], [89], [95], [99], [102], [103], [104], [113], [117], [121], [124], [127], [129], [135], [137], [140], [155], [156], [157], [158], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [181], [183], [184], [218], [219], [222], [225], [229], [235], [238], [242], [243], [247], [250], [252], [255], [262], [265], [268], [272], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [292], [293], [296], [297], [298], [299], [300], [301], [302], [304], [305], [306], [307], [310], [311], [312], [313], [314], [315], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345], [348], [349] [2018-12-03 07:30:24,072 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:30:24,073 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:30:24,712 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 07:30:24,712 INFO L272 AbstractInterpreter]: Visited 141 different actions 679 times. Merged at 15 different actions 42 times. Never widened. Performed 20968 root evaluator evaluations with a maximum evaluation depth of 5. Performed 20968 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 132 variables. [2018-12-03 07:30:24,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:24,715 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 07:30:24,715 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:30:24,715 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03d780aa-525f-4235-8821-4593cc9e2c33/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 [2018-12-03 07:30:24,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:30:24,721 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 07:30:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:24,777 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:30:24,827 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:30:24,828 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:30:25,028 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-03 07:30:25,043 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 07:30:25,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-12-03 07:30:25,043 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 07:30:25,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-03 07:30:25,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-03 07:30:25,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-12-03 07:30:25,044 INFO L87 Difference]: Start difference. First operand 1423 states and 1691 transitions. Second operand 14 states. [2018-12-03 07:30:25,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:30:25,965 INFO L93 Difference]: Finished difference Result 2832 states and 3527 transitions. [2018-12-03 07:30:25,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-03 07:30:25,965 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 172 [2018-12-03 07:30:25,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:30:25,972 INFO L225 Difference]: With dead ends: 2832 [2018-12-03 07:30:25,972 INFO L226 Difference]: Without dead ends: 1561 [2018-12-03 07:30:25,975 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 338 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2018-12-03 07:30:25,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2018-12-03 07:30:26,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1387. [2018-12-03 07:30:26,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1387 states. [2018-12-03 07:30:26,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 1647 transitions. [2018-12-03 07:30:26,026 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 1647 transitions. Word has length 172 [2018-12-03 07:30:26,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:30:26,027 INFO L480 AbstractCegarLoop]: Abstraction has 1387 states and 1647 transitions. [2018-12-03 07:30:26,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-03 07:30:26,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 1647 transitions. [2018-12-03 07:30:26,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-12-03 07:30:26,029 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:30:26,029 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:30:26,029 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:30:26,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:26,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1548542198, now seen corresponding path program 2 times [2018-12-03 07:30:26,030 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:30:26,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:26,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:30:26,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:26,030 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:30:26,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:26,109 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 45 proven. 14 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-12-03 07:30:26,109 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:30:26,109 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:30:26,109 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-03 07:30:26,110 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-03 07:30:26,110 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:30:26,110 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03d780aa-525f-4235-8821-4593cc9e2c33/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 [2018-12-03 07:30:26,116 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-03 07:30:26,116 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-03 07:30:26,190 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-12-03 07:30:26,190 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 07:30:26,194 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:30:26,290 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-12-03 07:30:26,290 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:30:26,536 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 45 proven. 14 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-12-03 07:30:26,552 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-03 07:30:26,552 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8] total 15 [2018-12-03 07:30:26,552 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:30:26,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 07:30:26,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 07:30:26,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-12-03 07:30:26,553 INFO L87 Difference]: Start difference. First operand 1387 states and 1647 transitions. Second operand 9 states. [2018-12-03 07:30:27,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:30:27,349 INFO L93 Difference]: Finished difference Result 3600 states and 4365 transitions. [2018-12-03 07:30:27,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-03 07:30:27,350 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 241 [2018-12-03 07:30:27,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:30:27,355 INFO L225 Difference]: With dead ends: 3600 [2018-12-03 07:30:27,355 INFO L226 Difference]: Without dead ends: 2357 [2018-12-03 07:30:27,358 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 476 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2018-12-03 07:30:27,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2357 states. [2018-12-03 07:30:27,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2357 to 2165. [2018-12-03 07:30:27,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2165 states. [2018-12-03 07:30:27,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2165 states to 2165 states and 2491 transitions. [2018-12-03 07:30:27,427 INFO L78 Accepts]: Start accepts. Automaton has 2165 states and 2491 transitions. Word has length 241 [2018-12-03 07:30:27,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:30:27,428 INFO L480 AbstractCegarLoop]: Abstraction has 2165 states and 2491 transitions. [2018-12-03 07:30:27,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 07:30:27,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2165 states and 2491 transitions. [2018-12-03 07:30:27,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2018-12-03 07:30:27,432 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:30:27,432 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:30:27,432 INFO L423 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:30:27,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:27,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1456786055, now seen corresponding path program 1 times [2018-12-03 07:30:27,433 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:30:27,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:27,433 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-03 07:30:27,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:30:27,433 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:30:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:27,559 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 75 proven. 6 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2018-12-03 07:30:27,559 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:30:27,559 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:30:27,559 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 299 with the following transitions: [2018-12-03 07:30:27,560 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [56], [57], [58], [60], [63], [67], [68], [69], [72], [74], [75], [76], [77], [78], [81], [82], [83], [84], [87], [89], [92], [95], [99], [102], [103], [104], [113], [117], [121], [124], [127], [129], [132], [135], [137], [140], [155], [156], [157], [158], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [181], [183], [184], [187], [189], [191], [218], [219], [222], [225], [229], [235], [238], [242], [243], [247], [250], [252], [255], [262], [265], [268], [272], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [292], [293], [296], [297], [298], [299], [300], [301], [302], [304], [305], [306], [307], [308], [309], [310], [311], [312], [313], [314], [315], [316], [317], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345], [348], [349] [2018-12-03 07:30:27,561 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:30:27,561 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:30:28,752 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 07:30:28,752 INFO L272 AbstractInterpreter]: Visited 153 different actions 1021 times. Merged at 27 different actions 120 times. Never widened. Performed 38764 root evaluator evaluations with a maximum evaluation depth of 5. Performed 38764 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 22 fixpoints after 5 different actions. Largest state had 132 variables. [2018-12-03 07:30:28,754 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:28,754 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 07:30:28,754 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:30:28,754 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03d780aa-525f-4235-8821-4593cc9e2c33/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 07:30:28,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:30:28,760 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 07:30:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:28,832 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:30:28,871 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2018-12-03 07:30:28,872 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:30:29,136 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 75 proven. 6 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2018-12-03 07:30:29,152 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-03 07:30:29,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-12-03 07:30:29,152 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:30:29,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-03 07:30:29,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-03 07:30:29,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-03 07:30:29,153 INFO L87 Difference]: Start difference. First operand 2165 states and 2491 transitions. Second operand 5 states. [2018-12-03 07:30:29,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:30:29,184 INFO L93 Difference]: Finished difference Result 2842 states and 3303 transitions. [2018-12-03 07:30:29,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-03 07:30:29,184 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 298 [2018-12-03 07:30:29,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:30:29,185 INFO L225 Difference]: With dead ends: 2842 [2018-12-03 07:30:29,185 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 07:30:29,188 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 593 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-03 07:30:29,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 07:30:29,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 07:30:29,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 07:30:29,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 07:30:29,189 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 298 [2018-12-03 07:30:29,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:30:29,189 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 07:30:29,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-03 07:30:29,189 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 07:30:29,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 07:30:29,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 07:30:29,294 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,295 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,297 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,298 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,299 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,302 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,302 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,304 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,305 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,305 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,440 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,442 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,443 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,444 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,445 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,448 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,449 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,449 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,450 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,451 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,451 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,452 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,453 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,453 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,454 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,486 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,486 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,487 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,487 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,490 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,491 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,491 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,493 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,495 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,497 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,498 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,498 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,501 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,501 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,518 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,707 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,708 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,709 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:29,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 07:30:30,873 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 47 [2018-12-03 07:30:32,133 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 44 [2018-12-03 07:30:32,251 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 24 [2018-12-03 07:30:32,252 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 70 76) the Hoare annotation is: true [2018-12-03 07:30:32,252 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 70 76) no Hoare annotation was computed. [2018-12-03 07:30:32,252 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 77 85) no Hoare annotation was computed. [2018-12-03 07:30:32,252 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 77 85) the Hoare annotation is: true [2018-12-03 07:30:32,253 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 77 85) no Hoare annotation was computed. [2018-12-03 07:30:32,253 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 510 534) the Hoare annotation is: true [2018-12-03 07:30:32,253 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 510 534) no Hoare annotation was computed. [2018-12-03 07:30:32,253 INFO L444 ceAbstractionStarter]: At program point L524(line 524) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or (< ~waterLevel~0 2) .cse2 .cse3))) [2018-12-03 07:30:32,253 INFO L448 ceAbstractionStarter]: For program point L522(lines 522 528) no Hoare annotation was computed. [2018-12-03 07:30:32,253 INFO L444 ceAbstractionStarter]: At program point L520(line 520) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or (< ~waterLevel~0 2) .cse2 .cse3))) [2018-12-03 07:30:32,253 INFO L448 ceAbstractionStarter]: For program point L520-1(line 520) no Hoare annotation was computed. [2018-12-03 07:30:32,253 INFO L448 ceAbstractionStarter]: For program point L518(lines 518 531) no Hoare annotation was computed. [2018-12-03 07:30:32,253 INFO L448 ceAbstractionStarter]: For program point L518-1(lines 510 534) no Hoare annotation was computed. [2018-12-03 07:30:32,253 INFO L451 ceAbstractionStarter]: At program point L516(line 516) the Hoare annotation is: true [2018-12-03 07:30:32,253 INFO L448 ceAbstractionStarter]: For program point L516-1(line 516) no Hoare annotation was computed. [2018-12-03 07:30:32,253 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 974 996) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (< ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-03 07:30:32,253 INFO L444 ceAbstractionStarter]: At program point L986(line 986) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (<= 1 ~waterLevel~0) (= main_~tmp~11 ~systemActive~0) (< ~waterLevel~0 2) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-03 07:30:32,253 INFO L444 ceAbstractionStarter]: At program point L986-1(line 986) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (<= 1 ~waterLevel~0) (= main_~tmp~11 ~systemActive~0) (< ~waterLevel~0 2) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-03 07:30:32,253 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 974 996) no Hoare annotation was computed. [2018-12-03 07:30:32,253 INFO L448 ceAbstractionStarter]: For program point L984(lines 984 991) no Hoare annotation was computed. [2018-12-03 07:30:32,253 INFO L448 ceAbstractionStarter]: For program point L984-1(lines 984 991) no Hoare annotation was computed. [2018-12-03 07:30:32,254 INFO L448 ceAbstractionStarter]: For program point L982(line 982) no Hoare annotation was computed. [2018-12-03 07:30:32,254 INFO L444 ceAbstractionStarter]: At program point L981(line 981) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (< ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-03 07:30:32,254 INFO L444 ceAbstractionStarter]: At program point L980(line 980) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (< ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-03 07:30:32,254 INFO L444 ceAbstractionStarter]: At program point L980-1(line 980) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (< ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-03 07:30:32,254 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 974 996) no Hoare annotation was computed. [2018-12-03 07:30:32,254 INFO L444 ceAbstractionStarter]: At program point L178(line 178) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 .cse2) (or .cse0 (= |old(~pumpRunning~0)| 0) .cse1 .cse3) (or .cse0 .cse1 .cse3 .cse2))) [2018-12-03 07:30:32,254 INFO L448 ceAbstractionStarter]: For program point L178-1(lines 159 183) no Hoare annotation was computed. [2018-12-03 07:30:32,254 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 159 183) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 .cse2) (or .cse2 .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2018-12-03 07:30:32,254 INFO L444 ceAbstractionStarter]: At program point L173(line 173) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2018-12-03 07:30:32,254 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 159 183) no Hoare annotation was computed. [2018-12-03 07:30:32,254 INFO L444 ceAbstractionStarter]: At program point L169(line 169) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 .cse3) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2 .cse3))) [2018-12-03 07:30:32,254 INFO L448 ceAbstractionStarter]: For program point L167(lines 167 175) no Hoare annotation was computed. [2018-12-03 07:30:32,254 INFO L444 ceAbstractionStarter]: At program point L165(line 165) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 .cse3) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2 .cse3))) [2018-12-03 07:30:32,254 INFO L448 ceAbstractionStarter]: For program point L165-1(line 165) no Hoare annotation was computed. [2018-12-03 07:30:32,254 INFO L448 ceAbstractionStarter]: For program point L163(lines 163 180) no Hoare annotation was computed. [2018-12-03 07:30:32,254 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 254 262) no Hoare annotation was computed. [2018-12-03 07:30:32,254 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 254 262) the Hoare annotation is: true [2018-12-03 07:30:32,255 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 254 262) no Hoare annotation was computed. [2018-12-03 07:30:32,255 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 318 336) the Hoare annotation is: true [2018-12-03 07:30:32,255 INFO L448 ceAbstractionStarter]: For program point L327(lines 327 331) no Hoare annotation was computed. [2018-12-03 07:30:32,255 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 318 336) no Hoare annotation was computed. [2018-12-03 07:30:32,255 INFO L451 ceAbstractionStarter]: At program point L325(line 325) the Hoare annotation is: true [2018-12-03 07:30:32,255 INFO L448 ceAbstractionStarter]: For program point L327-2(lines 327 331) no Hoare annotation was computed. [2018-12-03 07:30:32,255 INFO L448 ceAbstractionStarter]: For program point L325-1(line 325) no Hoare annotation was computed. [2018-12-03 07:30:32,255 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 318 336) no Hoare annotation was computed. [2018-12-03 07:30:32,255 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 63 69) no Hoare annotation was computed. [2018-12-03 07:30:32,255 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 63 69) the Hoare annotation is: true [2018-12-03 07:30:32,255 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 964 973) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (< ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-03 07:30:32,255 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 964 973) no Hoare annotation was computed. [2018-12-03 07:30:32,255 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 964 973) no Hoare annotation was computed. [2018-12-03 07:30:32,255 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 243 253) the Hoare annotation is: true [2018-12-03 07:30:32,255 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 243 253) no Hoare annotation was computed. [2018-12-03 07:30:32,255 INFO L451 ceAbstractionStarter]: At program point L248(line 248) the Hoare annotation is: true [2018-12-03 07:30:32,255 INFO L448 ceAbstractionStarter]: For program point L248-1(line 248) no Hoare annotation was computed. [2018-12-03 07:30:32,255 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 243 253) no Hoare annotation was computed. [2018-12-03 07:30:32,255 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 235 242) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (< ~waterLevel~0 1)) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3))) [2018-12-03 07:30:32,255 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 235 242) no Hoare annotation was computed. [2018-12-03 07:30:32,255 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 235 242) no Hoare annotation was computed. [2018-12-03 07:30:32,255 INFO L448 ceAbstractionStarter]: For program point L490(lines 490 496) no Hoare annotation was computed. [2018-12-03 07:30:32,256 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 486 499) no Hoare annotation was computed. [2018-12-03 07:30:32,256 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 486 499) the Hoare annotation is: true [2018-12-03 07:30:32,256 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 486 499) no Hoare annotation was computed. [2018-12-03 07:30:32,256 INFO L448 ceAbstractionStarter]: For program point L193(lines 193 201) no Hoare annotation was computed. [2018-12-03 07:30:32,256 INFO L444 ceAbstractionStarter]: At program point L191(line 191) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse5 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (< ~waterLevel~0 1)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse2 .cse3))) [2018-12-03 07:30:32,256 INFO L448 ceAbstractionStarter]: For program point L191-1(line 191) no Hoare annotation was computed. [2018-12-03 07:30:32,256 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 206) no Hoare annotation was computed. [2018-12-03 07:30:32,256 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 185 209) no Hoare annotation was computed. [2018-12-03 07:30:32,256 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 185 209) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (< ~methaneLevelCritical~0 1) .cse1 .cse2))) [2018-12-03 07:30:32,256 INFO L444 ceAbstractionStarter]: At program point L204(line 204) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (< ~waterLevel~0 1)) (.cse3 (not (= ~systemActive~0 1))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse1 .cse3) (or .cse1 .cse3 .cse4 .cse5))) [2018-12-03 07:30:32,256 INFO L448 ceAbstractionStarter]: For program point L204-1(lines 185 209) no Hoare annotation was computed. [2018-12-03 07:30:32,257 INFO L444 ceAbstractionStarter]: At program point L199(line 199) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 .cse2) (or .cse0 .cse1 (and (= processEnvironment_~tmp~2 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse2))) [2018-12-03 07:30:32,257 INFO L444 ceAbstractionStarter]: At program point L195(line 195) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (and (= processEnvironment_~tmp~2 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1 .cse2) (or .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-12-03 07:30:32,257 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 125 131) no Hoare annotation was computed. [2018-12-03 07:30:32,257 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 125 131) the Hoare annotation is: true [2018-12-03 07:30:32,257 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 357) no Hoare annotation was computed. [2018-12-03 07:30:32,257 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 341 404) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (< ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-03 07:30:32,257 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 341 404) no Hoare annotation was computed. [2018-12-03 07:30:32,257 INFO L444 ceAbstractionStarter]: At program point L397(lines 350 398) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-03 07:30:32,257 INFO L448 ceAbstractionStarter]: For program point L387(lines 387 391) no Hoare annotation was computed. [2018-12-03 07:30:32,257 INFO L444 ceAbstractionStarter]: At program point L387-2(lines 381 392) the Hoare annotation is: (let ((.cse5 (<= 2 ~waterLevel~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse4 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse2 (<= 1 ~waterLevel~0)) (.cse3 (= test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse3) (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse5 .cse1 .cse3) (and .cse4 .cse0 .cse2 .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-03 07:30:32,257 INFO L448 ceAbstractionStarter]: For program point L352(lines 351 396) no Hoare annotation was computed. [2018-12-03 07:30:32,257 INFO L448 ceAbstractionStarter]: For program point L381(lines 381 392) no Hoare annotation was computed. [2018-12-03 07:30:32,257 INFO L444 ceAbstractionStarter]: At program point L373(line 373) the Hoare annotation is: (let ((.cse3 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= 1 ~waterLevel~0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 .cse2) (and .cse3 (<= 2 ~waterLevel~0) .cse2) (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse3 .cse0 .cse1 .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-03 07:30:32,257 INFO L448 ceAbstractionStarter]: For program point L371(lines 371 377) no Hoare annotation was computed. [2018-12-03 07:30:32,257 INFO L448 ceAbstractionStarter]: For program point L371-1(lines 371 377) no Hoare annotation was computed. [2018-12-03 07:30:32,258 INFO L444 ceAbstractionStarter]: At program point L363(line 363) the Hoare annotation is: (let ((.cse0 (<= 1 ~waterLevel~0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= ~systemActive~0 1)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-03 07:30:32,258 INFO L444 ceAbstractionStarter]: At program point L394(lines 351 396) the Hoare annotation is: (let ((.cse3 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= 1 ~waterLevel~0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse3 (<= 2 ~waterLevel~0) .cse2) (not (= ~systemActive~0 1)) (and .cse3 .cse0 .cse1 .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-03 07:30:32,258 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 367) no Hoare annotation was computed. [2018-12-03 07:30:32,258 INFO L448 ceAbstractionStarter]: For program point L361-1(lines 361 367) no Hoare annotation was computed. [2018-12-03 07:30:32,258 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 341 404) no Hoare annotation was computed. [2018-12-03 07:30:32,258 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 210 217) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) [2018-12-03 07:30:32,258 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 210 217) no Hoare annotation was computed. [2018-12-03 07:30:32,258 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 210 217) no Hoare annotation was computed. [2018-12-03 07:30:32,258 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 500 508) no Hoare annotation was computed. [2018-12-03 07:30:32,258 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 500 508) the Hoare annotation is: true [2018-12-03 07:30:32,258 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 500 508) no Hoare annotation was computed. [2018-12-03 07:30:32,259 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-03 07:30:32,259 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-03 07:30:32,259 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 07:30:32,259 INFO L448 ceAbstractionStarter]: For program point L225(lines 225 231) no Hoare annotation was computed. [2018-12-03 07:30:32,259 INFO L444 ceAbstractionStarter]: At program point L223(line 223) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 2)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse1 .cse0 .cse2 .cse3))) [2018-12-03 07:30:32,259 INFO L448 ceAbstractionStarter]: For program point L223-1(line 223) no Hoare annotation was computed. [2018-12-03 07:30:32,259 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 218 234) no Hoare annotation was computed. [2018-12-03 07:30:32,259 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 218 234) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 2)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse1 .cse0 .cse2 .cse3))) [2018-12-03 07:30:32,259 INFO L444 ceAbstractionStarter]: At program point L229(line 229) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2018-12-03 07:30:32,259 INFO L448 ceAbstractionStarter]: For program point L229-1(lines 218 234) no Hoare annotation was computed. [2018-12-03 07:30:32,259 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 477 485) the Hoare annotation is: true [2018-12-03 07:30:32,259 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 477 485) no Hoare annotation was computed. [2018-12-03 07:30:32,260 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 477 485) no Hoare annotation was computed. [2018-12-03 07:30:32,260 INFO L448 ceAbstractionStarter]: For program point L306-1(line 306) no Hoare annotation was computed. [2018-12-03 07:30:32,260 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 299 317) no Hoare annotation was computed. [2018-12-03 07:30:32,260 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 299 317) the Hoare annotation is: true [2018-12-03 07:30:32,260 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 299 317) no Hoare annotation was computed. [2018-12-03 07:30:32,260 INFO L448 ceAbstractionStarter]: For program point L308(lines 308 312) no Hoare annotation was computed. [2018-12-03 07:30:32,260 INFO L451 ceAbstractionStarter]: At program point L306(line 306) the Hoare annotation is: true [2018-12-03 07:30:32,260 INFO L448 ceAbstractionStarter]: For program point L308-2(lines 308 312) no Hoare annotation was computed. [2018-12-03 07:30:32,260 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 433 444) the Hoare annotation is: (let ((.cse1 (< ~waterLevel~0 1)) (.cse4 (= 0 ~methaneLevelCritical~0)) (.cse3 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1)))) (and (or (<= 1 ~methaneLevelCritical~0) (< |old(~methaneLevelCritical~0)| 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse4 .cse3 (or (< ~waterLevel~0 2) .cse2)) (or (not (= |old(~methaneLevelCritical~0)| 1)) .cse0 (= ~methaneLevelCritical~0 1) .cse2 (not (= ~waterLevel~0 1))))) [2018-12-03 07:30:32,260 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 433 444) no Hoare annotation was computed. [2018-12-03 07:30:32,260 INFO L448 ceAbstractionStarter]: For program point L437-1(lines 433 444) no Hoare annotation was computed. [2018-12-03 07:30:32,260 INFO L451 ceAbstractionStarter]: At program point L928(lines 903 932) the Hoare annotation is: true [2018-12-03 07:30:32,261 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 903 932) no Hoare annotation was computed. [2018-12-03 07:30:32,261 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 903 932) the Hoare annotation is: true [2018-12-03 07:30:32,261 INFO L448 ceAbstractionStarter]: For program point L924(line 924) no Hoare annotation was computed. [2018-12-03 07:30:32,261 INFO L448 ceAbstractionStarter]: For program point L917(lines 917 921) no Hoare annotation was computed. [2018-12-03 07:30:32,261 INFO L451 ceAbstractionStarter]: At program point L917-1(lines 917 921) the Hoare annotation is: true [2018-12-03 07:30:32,261 INFO L448 ceAbstractionStarter]: For program point L914(line 914) no Hoare annotation was computed. [2018-12-03 07:30:32,261 INFO L451 ceAbstractionStarter]: At program point L913-2(lines 913 927) the Hoare annotation is: true [2018-12-03 07:30:32,261 INFO L451 ceAbstractionStarter]: At program point L909(line 909) the Hoare annotation is: true [2018-12-03 07:30:32,261 INFO L448 ceAbstractionStarter]: For program point L909-1(line 909) no Hoare annotation was computed. [2018-12-03 07:30:32,261 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 445 453) the Hoare annotation is: true [2018-12-03 07:30:32,261 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 445 453) no Hoare annotation was computed. [2018-12-03 07:30:32,261 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 445 453) no Hoare annotation was computed. [2018-12-03 07:30:32,262 INFO L444 ceAbstractionStarter]: At program point L114(line 114) the Hoare annotation is: (let ((.cse10 (not (= ~systemActive~0 1))) (.cse11 (+ ~waterLevel~0 1))) (let ((.cse1 (<= .cse11 |old(~waterLevel~0)|)) (.cse2 (<= |old(~waterLevel~0)| .cse11)) (.cse4 (= 0 ~pumpRunning~0)) (.cse6 (or (< |old(~waterLevel~0)| 2) .cse10)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse8 (not (= 0 |old(~pumpRunning~0)|))) (.cse9 (< |old(~waterLevel~0)| 1)) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse5 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 (and .cse1 (not (= |old(~pumpRunning~0)| 0)) .cse2 .cse3) (and .cse4 .cse5 .cse3) .cse6) (or (and .cse1 .cse2 .cse3) (and .cse4 .cse3) .cse7 .cse6) (or (and (< ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0) .cse3) (<= 2 |old(~waterLevel~0)|) .cse0 .cse8 .cse9 .cse10) (or .cse8 .cse3 .cse10 (not (= |old(~waterLevel~0)| 1)) .cse7) (or .cse8 .cse9 .cse10 .cse7 .cse5)))) [2018-12-03 07:30:32,262 INFO L444 ceAbstractionStarter]: At program point L112(lines 112 118) the Hoare annotation is: (let ((.cse8 (not (= ~systemActive~0 1))) (.cse1 (= 0 ~pumpRunning~0)) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse7 (and (< ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0) .cse3)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (let ((.cse10 (+ ~waterLevel~0 1))) (and (<= .cse10 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) .cse1 (<= |old(~waterLevel~0)| .cse10)))) (.cse9 (not (= ~methaneLevelCritical~0 0))) (.cse5 (or (< |old(~waterLevel~0)| 2) .cse8))) (and (or .cse0 (and .cse1 .cse2 .cse3) .cse4 .cse5) (or .cse6 .cse7 .cse8 (not (= |old(~waterLevel~0)| 1)) .cse9) (or .cse7 (<= 2 |old(~waterLevel~0)|) .cse0 .cse6 (< |old(~waterLevel~0)| 1) .cse8) (or .cse2 .cse4 .cse9 .cse5)))) [2018-12-03 07:30:32,262 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 101 124) the Hoare annotation is: (let ((.cse5 (not (= ~systemActive~0 1))) (.cse7 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse4 (and (< ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0) .cse7)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse7)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse2 (or (< |old(~waterLevel~0)| 2) .cse5))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5 (not (= |old(~waterLevel~0)| 1)) .cse6) (or .cse4 (<= 2 |old(~waterLevel~0)|) .cse0 .cse3 (< |old(~waterLevel~0)| 1) .cse5) (or .cse1 .cse6 .cse2)))) [2018-12-03 07:30:32,262 INFO L444 ceAbstractionStarter]: At program point L107(line 107) the Hoare annotation is: (let ((.cse5 (not (= ~systemActive~0 1)))) (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse2 (or (< |old(~waterLevel~0)| 2) .cse5)) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (< |old(~waterLevel~0)| 1)) (.cse6 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse4 .cse5) (or .cse1 .cse6 .cse2) (or .cse3 .cse4 .cse5 .cse6)))) [2018-12-03 07:30:32,262 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 101 124) no Hoare annotation was computed. [2018-12-03 07:30:32,262 INFO L448 ceAbstractionStarter]: For program point L105(lines 104 123) no Hoare annotation was computed. [2018-12-03 07:30:32,262 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 101 124) no Hoare annotation was computed. [2018-12-03 07:30:32,262 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 409 420) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (or (= ~pumpRunning~0 0) (not (= ~systemActive~0 1)))) (.cse2 (< |old(~waterLevel~0)| 2))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2018-12-03 07:30:32,263 INFO L448 ceAbstractionStarter]: For program point L413-1(lines 409 420) no Hoare annotation was computed. [2018-12-03 07:30:32,263 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 409 420) no Hoare annotation was computed. [2018-12-03 07:30:32,263 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 957 963) no Hoare annotation was computed. [2018-12-03 07:30:32,263 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 957 963) the Hoare annotation is: true [2018-12-03 07:30:32,263 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 07:30:32,263 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~methaneLevelCritical~0 0) (<= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= ~systemActive~0 1) (< ~waterLevel~0 2)) [2018-12-03 07:30:32,263 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 07:30:32,263 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 07:30:32,263 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 133 157) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse3))) [2018-12-03 07:30:32,263 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 133 157) no Hoare annotation was computed. [2018-12-03 07:30:32,263 INFO L444 ceAbstractionStarter]: At program point L152(line 152) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-12-03 07:30:32,263 INFO L448 ceAbstractionStarter]: For program point L152-1(lines 133 157) no Hoare annotation was computed. [2018-12-03 07:30:32,264 INFO L444 ceAbstractionStarter]: At program point L147(line 147) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse2 (< ~waterLevel~0 1)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3))) [2018-12-03 07:30:32,264 INFO L444 ceAbstractionStarter]: At program point L143(line 143) the Hoare annotation is: (let ((.cse1 (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 1)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse1 .cse0 .cse2 .cse3))) [2018-12-03 07:30:32,264 INFO L448 ceAbstractionStarter]: For program point L141(lines 141 149) no Hoare annotation was computed. [2018-12-03 07:30:32,264 INFO L444 ceAbstractionStarter]: At program point L139(line 139) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse3))) [2018-12-03 07:30:32,264 INFO L448 ceAbstractionStarter]: For program point L139-1(line 139) no Hoare annotation was computed. [2018-12-03 07:30:32,264 INFO L448 ceAbstractionStarter]: For program point L137(lines 137 154) no Hoare annotation was computed. [2018-12-03 07:30:32,264 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 421 432) no Hoare annotation was computed. [2018-12-03 07:30:32,264 INFO L448 ceAbstractionStarter]: For program point L425-1(lines 421 432) no Hoare annotation was computed. [2018-12-03 07:30:32,264 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 421 432) the Hoare annotation is: (let ((.cse6 (not (= ~systemActive~0 1)))) (let ((.cse1 (< ~methaneLevelCritical~0 1)) (.cse5 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse7 (< |old(~waterLevel~0)| 2)) (.cse3 (or (not (= 0 ~pumpRunning~0)) .cse6)) (.cse0 (<= 2 |old(~waterLevel~0)|)) (.cse2 (< |old(~waterLevel~0)| 1)) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse4 (and (< ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or (or .cse0 .cse1 .cse2 .cse3) .cse4) (or .cse5 .cse6 .cse7 .cse8) (or .cse1 .cse5 .cse7 .cse3) (or (or .cse0 .cse2 .cse6 .cse8) .cse4)))) [2018-12-03 07:30:32,264 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 40 47) no Hoare annotation was computed. [2018-12-03 07:30:32,265 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2018-12-03 07:30:32,265 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2018-12-03 07:30:32,265 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2018-12-03 07:30:32,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 07:30:32 BoogieIcfgContainer [2018-12-03 07:30:32,276 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 07:30:32,276 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 07:30:32,276 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 07:30:32,276 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 07:30:32,277 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:30:12" (3/4) ... [2018-12-03 07:30:32,280 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 07:30:32,284 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-03 07:30:32,284 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-03 07:30:32,284 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-12-03 07:30:32,284 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 07:30:32,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-12-03 07:30:32,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-03 07:30:32,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-03 07:30:32,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-03 07:30:32,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-03 07:30:32,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-03 07:30:32,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-03 07:30:32,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-03 07:30:32,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-03 07:30:32,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-03 07:30:32,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-03 07:30:32,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-12-03 07:30:32,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-03 07:30:32,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 07:30:32,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-03 07:30:32,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-12-03 07:30:32,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-03 07:30:32,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-03 07:30:32,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-03 07:30:32,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-03 07:30:32,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-03 07:30:32,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-03 07:30:32,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-03 07:30:32,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-03 07:30:32,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-03 07:30:32,287 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-03 07:30:32,292 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2018-12-03 07:30:32,292 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-12-03 07:30:32,293 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-03 07:30:32,293 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-03 07:30:32,293 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-03 07:30:32,294 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 07:30:32,314 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((0 == pumpRunning && 1 <= methaneLevelCritical) && 1 <= waterLevel) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || ((0 == methaneLevelCritical && 2 <= waterLevel) && splverifierCounter == 0)) || !(systemActive == 1)) || (((0 == methaneLevelCritical && 0 == pumpRunning) && 1 <= waterLevel) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-03 07:30:32,314 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-03 07:30:32,337 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_03d780aa-525f-4235-8821-4593cc9e2c33/bin-2019/utaipan/witness.graphml [2018-12-03 07:30:32,337 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 07:30:32,337 INFO L168 Benchmark]: Toolchain (without parser) took 20082.20 ms. Allocated memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: 1.3 GB). Free memory was 956.0 MB in the beginning and 1.9 GB in the end (delta: -990.1 MB). Peak memory consumption was 346.8 MB. Max. memory is 11.5 GB. [2018-12-03 07:30:32,338 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:30:32,338 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -159.7 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-03 07:30:32,338 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.45 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. [2018-12-03 07:30:32,338 INFO L168 Benchmark]: Boogie Preprocessor took 22.35 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. [2018-12-03 07:30:32,338 INFO L168 Benchmark]: RCFGBuilder took 365.92 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: 55.3 MB). Peak memory consumption was 55.3 MB. Max. memory is 11.5 GB. [2018-12-03 07:30:32,338 INFO L168 Benchmark]: TraceAbstraction took 19311.95 ms. Allocated memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: 1.2 GB). Free memory was 1.1 GB in the beginning and 2.0 GB in the end (delta: -914.7 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. [2018-12-03 07:30:32,338 INFO L168 Benchmark]: Witness Printer took 60.98 ms. Allocated memory is still 2.4 GB. Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2018-12-03 07:30:32,339 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 298.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -159.7 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.45 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 22.35 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. * RCFGBuilder took 365.92 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: 55.3 MB). Peak memory consumption was 55.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19311.95 ms. Allocated memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: 1.2 GB). Free memory was 1.1 GB in the beginning and 2.0 GB in the end (delta: -914.7 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. * Witness Printer took 60.98 ms. Allocated memory is still 2.4 GB. Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 351]: Loop Invariant Derived loop invariant: ((((((((0 == pumpRunning && 1 <= methaneLevelCritical) && 1 <= waterLevel) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || ((0 == methaneLevelCritical && 2 <= waterLevel) && splverifierCounter == 0)) || !(systemActive == 1)) || (((0 == methaneLevelCritical && 0 == pumpRunning) && 1 <= waterLevel) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 913]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 350]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 903]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 166 locations, 1 error locations. SAFE Result, 19.2s OverallTime, 16 OverallIterations, 4 TraceHistogramMax, 5.9s AutomataDifference, 0.0s DeadEndRemovalTime, 3.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3195 SDtfs, 2965 SDslu, 9708 SDs, 0 SdLazy, 6803 SolverSat, 1283 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 2820 GetRequests, 2588 SyntacticMatches, 32 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 584 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2165occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.1s AbstIntTime, 7 AbstIntIterations, 2 AbstIntStrong, 0.9982781736551499 AbsIntWeakeningRatio, 0.8707482993197279 AbsIntAvgWeakeningVarsNumRemoved, 38.92857142857143 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 16 MinimizatonAttempts, 581 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 69 LocationsWithAnnotation, 5879 PreInvPairs, 5978 NumberOfFragments, 2175 HoareAnnotationTreeSize, 5879 FomulaSimplifications, 8825 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 69 FomulaSimplificationsInter, 19467 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 3390 NumberOfCodeBlocks, 3315 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 4523 ConstructedInterpolants, 0 QuantifiedInterpolants, 1155176 SizeOfPredicates, 30 NumberOfNonLiveVariables, 5511 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 28 InterpolantComputations, 13 PerfectInterpolantSequences, 1719/1821 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...