./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product45_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e6b32f61-7775-42a6-9f53-f05e86cc7353/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e6b32f61-7775-42a6-9f53-f05e86cc7353/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e6b32f61-7775-42a6-9f53-f05e86cc7353/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e6b32f61-7775-42a6-9f53-f05e86cc7353/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product45_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e6b32f61-7775-42a6-9f53-f05e86cc7353/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e6b32f61-7775-42a6-9f53-f05e86cc7353/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 8c7c11659b56a65fd9b011a28c96b3117f33c316 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 07:45:07,740 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 07:45:07,742 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 07:45:07,750 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 07:45:07,750 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 07:45:07,751 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 07:45:07,751 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 07:45:07,753 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 07:45:07,754 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 07:45:07,754 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 07:45:07,755 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 07:45:07,755 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 07:45:07,756 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 07:45:07,756 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 07:45:07,757 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 07:45:07,758 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 07:45:07,758 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 07:45:07,759 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 07:45:07,761 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 07:45:07,762 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 07:45:07,762 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 07:45:07,763 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 07:45:07,765 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 07:45:07,765 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 07:45:07,765 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 07:45:07,766 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 07:45:07,767 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 07:45:07,767 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 07:45:07,768 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 07:45:07,769 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 07:45:07,769 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 07:45:07,769 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 07:45:07,769 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 07:45:07,770 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 07:45:07,770 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 07:45:07,770 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 07:45:07,771 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e6b32f61-7775-42a6-9f53-f05e86cc7353/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 07:45:07,780 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 07:45:07,781 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 07:45:07,781 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 07:45:07,781 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 07:45:07,781 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 07:45:07,782 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 07:45:07,782 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 07:45:07,782 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 07:45:07,782 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 07:45:07,782 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 07:45:07,782 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 07:45:07,782 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 07:45:07,782 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 07:45:07,783 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 07:45:07,783 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 07:45:07,783 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 07:45:07,783 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 07:45:07,783 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 07:45:07,783 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 07:45:07,783 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 07:45:07,784 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 07:45:07,784 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 07:45:07,784 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 07:45:07,784 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 07:45:07,784 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 07:45:07,784 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 07:45:07,784 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 07:45:07,785 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 07:45:07,785 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 07:45:07,785 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:45:07,785 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 07:45:07,785 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 07:45:07,785 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 07:45:07,785 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 07:45:07,786 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 07:45:07,786 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 07:45:07,786 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 07:45:07,786 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_e6b32f61-7775-42a6-9f53-f05e86cc7353/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 -> 8c7c11659b56a65fd9b011a28c96b3117f33c316 [2018-11-23 07:45:07,810 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 07:45:07,819 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 07:45:07,822 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 07:45:07,823 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 07:45:07,823 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 07:45:07,824 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e6b32f61-7775-42a6-9f53-f05e86cc7353/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product45_true-unreach-call_false-termination.cil.c [2018-11-23 07:45:07,868 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e6b32f61-7775-42a6-9f53-f05e86cc7353/bin-2019/utaipan/data/f58588f19/1f173e9bc44b4da9a7e37aa3266d3185/FLAG5f4ab59a6 [2018-11-23 07:45:08,205 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 07:45:08,206 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e6b32f61-7775-42a6-9f53-f05e86cc7353/sv-benchmarks/c/product-lines/minepump_spec1_product45_true-unreach-call_false-termination.cil.c [2018-11-23 07:45:08,215 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e6b32f61-7775-42a6-9f53-f05e86cc7353/bin-2019/utaipan/data/f58588f19/1f173e9bc44b4da9a7e37aa3266d3185/FLAG5f4ab59a6 [2018-11-23 07:45:08,224 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e6b32f61-7775-42a6-9f53-f05e86cc7353/bin-2019/utaipan/data/f58588f19/1f173e9bc44b4da9a7e37aa3266d3185 [2018-11-23 07:45:08,226 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 07:45:08,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 07:45:08,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 07:45:08,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 07:45:08,230 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 07:45:08,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:45:08" (1/1) ... [2018-11-23 07:45:08,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54f66bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:45:08, skipping insertion in model container [2018-11-23 07:45:08,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:45:08" (1/1) ... [2018-11-23 07:45:08,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 07:45:08,268 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 07:45:08,464 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:45:08,473 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 07:45:08,573 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:45:08,595 INFO L195 MainTranslator]: Completed translation [2018-11-23 07:45:08,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:45:08 WrapperNode [2018-11-23 07:45:08,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 07:45:08,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 07:45:08,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 07:45:08,597 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 07:45:08,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:45:08" (1/1) ... [2018-11-23 07:45:08,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:45:08" (1/1) ... [2018-11-23 07:45:08,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 07:45:08,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 07:45:08,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 07:45:08,617 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 07:45:08,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:45:08" (1/1) ... [2018-11-23 07:45:08,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:45:08" (1/1) ... [2018-11-23 07:45:08,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:45:08" (1/1) ... [2018-11-23 07:45:08,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:45:08" (1/1) ... [2018-11-23 07:45:08,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:45:08" (1/1) ... [2018-11-23 07:45:08,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:45:08" (1/1) ... [2018-11-23 07:45:08,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:45:08" (1/1) ... [2018-11-23 07:45:08,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 07:45:08,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 07:45:08,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 07:45:08,642 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 07:45:08,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:45:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e6b32f61-7775-42a6-9f53-f05e86cc7353/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:45:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-23 07:45:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-23 07:45:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 07:45:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 07:45:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 07:45:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-23 07:45:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-23 07:45:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-23 07:45:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-23 07:45:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-23 07:45:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-23 07:45:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-23 07:45:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-23 07:45:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-23 07:45:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-23 07:45:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-23 07:45:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-23 07:45:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-23 07:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-23 07:45:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-23 07:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-23 07:45:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-23 07:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-23 07:45:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-23 07:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-23 07:45:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-23 07:45:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-23 07:45:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-23 07:45:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-23 07:45:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-23 07:45:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-23 07:45:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-23 07:45:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-23 07:45:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-11-23 07:45:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-11-23 07:45:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-23 07:45:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-23 07:45:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-23 07:45:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-23 07:45:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-23 07:45:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-23 07:45:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-23 07:45:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-23 07:45:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-11-23 07:45:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-11-23 07:45:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 07:45:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 07:45:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 07:45:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-23 07:45:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-23 07:45:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-23 07:45:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-23 07:45:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 07:45:08,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 07:45:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-11-23 07:45:08,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-11-23 07:45:09,128 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 07:45:09,128 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 07:45:09,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:45:09 BoogieIcfgContainer [2018-11-23 07:45:09,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 07:45:09,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 07:45:09,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 07:45:09,132 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 07:45:09,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:45:08" (1/3) ... [2018-11-23 07:45:09,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6201d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:45:09, skipping insertion in model container [2018-11-23 07:45:09,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:45:08" (2/3) ... [2018-11-23 07:45:09,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6201d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:45:09, skipping insertion in model container [2018-11-23 07:45:09,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:45:09" (3/3) ... [2018-11-23 07:45:09,135 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product45_true-unreach-call_false-termination.cil.c [2018-11-23 07:45:09,141 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 07:45:09,146 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 07:45:09,156 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 07:45:09,179 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 07:45:09,179 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 07:45:09,179 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 07:45:09,180 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 07:45:09,180 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 07:45:09,180 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 07:45:09,180 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 07:45:09,180 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 07:45:09,195 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2018-11-23 07:45:09,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-23 07:45:09,202 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:45:09,203 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] [2018-11-23 07:45:09,204 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:45:09,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:45:09,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1859376885, now seen corresponding path program 1 times [2018-11-23 07:45:09,210 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:45:09,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:09,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:45:09,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:09,240 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:45:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:45:09,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:45:09,401 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:45:09,402 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 07:45:09,402 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:45:09,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 07:45:09,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 07:45:09,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 07:45:09,416 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 2 states. [2018-11-23 07:45:09,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:45:09,440 INFO L93 Difference]: Finished difference Result 260 states and 325 transitions. [2018-11-23 07:45:09,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 07:45:09,441 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-23 07:45:09,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:45:09,452 INFO L225 Difference]: With dead ends: 260 [2018-11-23 07:45:09,452 INFO L226 Difference]: Without dead ends: 130 [2018-11-23 07:45:09,455 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 [2018-11-23 07:45:09,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-11-23 07:45:09,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-11-23 07:45:09,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-11-23 07:45:09,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 154 transitions. [2018-11-23 07:45:09,487 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 154 transitions. Word has length 46 [2018-11-23 07:45:09,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:45:09,487 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 154 transitions. [2018-11-23 07:45:09,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 07:45:09,488 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 154 transitions. [2018-11-23 07:45:09,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-23 07:45:09,490 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:45:09,490 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] [2018-11-23 07:45:09,490 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:45:09,490 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:45:09,490 INFO L82 PathProgramCache]: Analyzing trace with hash -816350, now seen corresponding path program 1 times [2018-11-23 07:45:09,491 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:45:09,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:09,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:45:09,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:09,492 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:45:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:45:09,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:45:09,580 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:45:09,580 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 07:45:09,580 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:45:09,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 07:45:09,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 07:45:09,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 07:45:09,582 INFO L87 Difference]: Start difference. First operand 130 states and 154 transitions. Second operand 3 states. [2018-11-23 07:45:09,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:45:09,599 INFO L93 Difference]: Finished difference Result 209 states and 247 transitions. [2018-11-23 07:45:09,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 07:45:09,599 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-23 07:45:09,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:45:09,600 INFO L225 Difference]: With dead ends: 209 [2018-11-23 07:45:09,601 INFO L226 Difference]: Without dead ends: 121 [2018-11-23 07:45:09,602 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 [2018-11-23 07:45:09,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-11-23 07:45:09,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-11-23 07:45:09,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-11-23 07:45:09,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 142 transitions. [2018-11-23 07:45:09,612 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 142 transitions. Word has length 47 [2018-11-23 07:45:09,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:45:09,612 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 142 transitions. [2018-11-23 07:45:09,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 07:45:09,612 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 142 transitions. [2018-11-23 07:45:09,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-23 07:45:09,614 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:45:09,614 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] [2018-11-23 07:45:09,614 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:45:09,614 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:45:09,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1070515485, now seen corresponding path program 1 times [2018-11-23 07:45:09,614 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:45:09,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:09,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:45:09,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:09,615 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:45:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:45:09,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:45:09,731 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:45:09,731 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 07:45:09,731 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:45:09,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 07:45:09,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 07:45:09,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:45:09,733 INFO L87 Difference]: Start difference. First operand 121 states and 142 transitions. Second operand 7 states. [2018-11-23 07:45:09,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:45:09,971 INFO L93 Difference]: Finished difference Result 218 states and 261 transitions. [2018-11-23 07:45:09,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 07:45:09,971 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-11-23 07:45:09,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:45:09,972 INFO L225 Difference]: With dead ends: 218 [2018-11-23 07:45:09,972 INFO L226 Difference]: Without dead ends: 121 [2018-11-23 07:45:09,973 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 [2018-11-23 07:45:09,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-11-23 07:45:09,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-11-23 07:45:09,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-11-23 07:45:09,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2018-11-23 07:45:09,982 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 141 transitions. Word has length 51 [2018-11-23 07:45:09,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:45:09,983 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 141 transitions. [2018-11-23 07:45:09,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 07:45:09,983 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 141 transitions. [2018-11-23 07:45:09,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-23 07:45:09,985 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:45:09,985 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] [2018-11-23 07:45:09,985 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:45:09,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:45:09,985 INFO L82 PathProgramCache]: Analyzing trace with hash -912181828, now seen corresponding path program 1 times [2018-11-23 07:45:09,986 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:45:09,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:09,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:45:09,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:09,987 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:45:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:45:10,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:45:10,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:45:10,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 07:45:10,089 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:45:10,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 07:45:10,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 07:45:10,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 07:45:10,090 INFO L87 Difference]: Start difference. First operand 121 states and 141 transitions. Second operand 5 states. [2018-11-23 07:45:10,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:45:10,492 INFO L93 Difference]: Finished difference Result 319 states and 386 transitions. [2018-11-23 07:45:10,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 07:45:10,493 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2018-11-23 07:45:10,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:45:10,494 INFO L225 Difference]: With dead ends: 319 [2018-11-23 07:45:10,494 INFO L226 Difference]: Without dead ends: 222 [2018-11-23 07:45:10,495 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-23 07:45:10,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-11-23 07:45:10,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 204. [2018-11-23 07:45:10,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-11-23 07:45:10,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 233 transitions. [2018-11-23 07:45:10,514 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 233 transitions. Word has length 64 [2018-11-23 07:45:10,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:45:10,515 INFO L480 AbstractCegarLoop]: Abstraction has 204 states and 233 transitions. [2018-11-23 07:45:10,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 07:45:10,515 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 233 transitions. [2018-11-23 07:45:10,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-11-23 07:45:10,517 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:45:10,517 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] [2018-11-23 07:45:10,520 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:45:10,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:45:10,520 INFO L82 PathProgramCache]: Analyzing trace with hash -988770391, now seen corresponding path program 1 times [2018-11-23 07:45:10,521 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:45:10,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:10,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:45:10,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:10,522 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:45:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:45:10,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:45:10,642 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:45:10,642 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 07:45:10,642 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:45:10,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 07:45:10,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 07:45:10,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 07:45:10,643 INFO L87 Difference]: Start difference. First operand 204 states and 233 transitions. Second operand 6 states. [2018-11-23 07:45:10,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:45:10,811 INFO L93 Difference]: Finished difference Result 549 states and 649 transitions. [2018-11-23 07:45:10,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 07:45:10,813 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2018-11-23 07:45:10,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:45:10,816 INFO L225 Difference]: With dead ends: 549 [2018-11-23 07:45:10,816 INFO L226 Difference]: Without dead ends: 369 [2018-11-23 07:45:10,817 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 07:45:10,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2018-11-23 07:45:10,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 363. [2018-11-23 07:45:10,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2018-11-23 07:45:10,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 416 transitions. [2018-11-23 07:45:10,844 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 416 transitions. Word has length 78 [2018-11-23 07:45:10,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:45:10,844 INFO L480 AbstractCegarLoop]: Abstraction has 363 states and 416 transitions. [2018-11-23 07:45:10,845 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 07:45:10,845 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 416 transitions. [2018-11-23 07:45:10,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-11-23 07:45:10,846 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:45:10,846 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] [2018-11-23 07:45:10,846 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:45:10,846 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:45:10,846 INFO L82 PathProgramCache]: Analyzing trace with hash 610145221, now seen corresponding path program 1 times [2018-11-23 07:45:10,847 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:45:10,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:10,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:45:10,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:10,847 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:45:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:45:10,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:45:10,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:45:10,912 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 07:45:10,912 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:45:10,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 07:45:10,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 07:45:10,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:45:10,913 INFO L87 Difference]: Start difference. First operand 363 states and 416 transitions. Second operand 7 states. [2018-11-23 07:45:11,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:45:11,356 INFO L93 Difference]: Finished difference Result 396 states and 466 transitions. [2018-11-23 07:45:11,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 07:45:11,356 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2018-11-23 07:45:11,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:45:11,358 INFO L225 Difference]: With dead ends: 396 [2018-11-23 07:45:11,358 INFO L226 Difference]: Without dead ends: 393 [2018-11-23 07:45:11,359 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-11-23 07:45:11,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2018-11-23 07:45:11,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 363. [2018-11-23 07:45:11,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2018-11-23 07:45:11,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 415 transitions. [2018-11-23 07:45:11,378 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 415 transitions. Word has length 82 [2018-11-23 07:45:11,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:45:11,378 INFO L480 AbstractCegarLoop]: Abstraction has 363 states and 415 transitions. [2018-11-23 07:45:11,378 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 07:45:11,378 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 415 transitions. [2018-11-23 07:45:11,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-11-23 07:45:11,380 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:45:11,380 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:45:11,380 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:45:11,380 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:45:11,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1887685164, now seen corresponding path program 1 times [2018-11-23 07:45:11,381 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:45:11,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:11,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:45:11,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:11,382 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:45:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:45:11,448 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 07:45:11,448 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:45:11,448 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 07:45:11,448 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:45:11,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 07:45:11,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 07:45:11,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 07:45:11,449 INFO L87 Difference]: Start difference. First operand 363 states and 415 transitions. Second operand 6 states. [2018-11-23 07:45:11,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:45:11,483 INFO L93 Difference]: Finished difference Result 716 states and 838 transitions. [2018-11-23 07:45:11,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 07:45:11,484 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2018-11-23 07:45:11,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:45:11,486 INFO L225 Difference]: With dead ends: 716 [2018-11-23 07:45:11,486 INFO L226 Difference]: Without dead ends: 377 [2018-11-23 07:45:11,487 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:45:11,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2018-11-23 07:45:11,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 373. [2018-11-23 07:45:11,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2018-11-23 07:45:11,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 425 transitions. [2018-11-23 07:45:11,508 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 425 transitions. Word has length 98 [2018-11-23 07:45:11,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:45:11,508 INFO L480 AbstractCegarLoop]: Abstraction has 373 states and 425 transitions. [2018-11-23 07:45:11,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 07:45:11,508 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 425 transitions. [2018-11-23 07:45:11,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-11-23 07:45:11,509 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:45:11,510 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:45:11,510 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:45:11,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:45:11,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1513795794, now seen corresponding path program 1 times [2018-11-23 07:45:11,510 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:45:11,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:11,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:45:11,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:11,511 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:45:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:45:11,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 07:45:11,584 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:45:11,584 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 07:45:11,584 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:45:11,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 07:45:11,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 07:45:11,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-23 07:45:11,585 INFO L87 Difference]: Start difference. First operand 373 states and 425 transitions. Second operand 8 states. [2018-11-23 07:45:11,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:45:11,618 INFO L93 Difference]: Finished difference Result 736 states and 860 transitions. [2018-11-23 07:45:11,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 07:45:11,619 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2018-11-23 07:45:11,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:45:11,621 INFO L225 Difference]: With dead ends: 736 [2018-11-23 07:45:11,621 INFO L226 Difference]: Without dead ends: 387 [2018-11-23 07:45:11,622 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-23 07:45:11,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2018-11-23 07:45:11,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 381. [2018-11-23 07:45:11,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-11-23 07:45:11,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 433 transitions. [2018-11-23 07:45:11,639 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 433 transitions. Word has length 98 [2018-11-23 07:45:11,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:45:11,640 INFO L480 AbstractCegarLoop]: Abstraction has 381 states and 433 transitions. [2018-11-23 07:45:11,640 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 07:45:11,640 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 433 transitions. [2018-11-23 07:45:11,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-11-23 07:45:11,641 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:45:11,641 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:45:11,641 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:45:11,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:45:11,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1521555153, now seen corresponding path program 1 times [2018-11-23 07:45:11,642 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:45:11,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:11,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:45:11,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:11,643 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:45:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:45:11,717 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 07:45:11,717 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:45:11,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 07:45:11,718 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:45:11,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 07:45:11,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 07:45:11,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 07:45:11,719 INFO L87 Difference]: Start difference. First operand 381 states and 433 transitions. Second operand 4 states. [2018-11-23 07:45:11,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:45:11,831 INFO L93 Difference]: Finished difference Result 1123 states and 1346 transitions. [2018-11-23 07:45:11,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 07:45:11,833 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2018-11-23 07:45:11,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:45:11,836 INFO L225 Difference]: With dead ends: 1123 [2018-11-23 07:45:11,836 INFO L226 Difference]: Without dead ends: 766 [2018-11-23 07:45:11,837 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 07:45:11,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2018-11-23 07:45:11,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 751. [2018-11-23 07:45:11,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2018-11-23 07:45:11,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 881 transitions. [2018-11-23 07:45:11,862 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 881 transitions. Word has length 98 [2018-11-23 07:45:11,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:45:11,862 INFO L480 AbstractCegarLoop]: Abstraction has 751 states and 881 transitions. [2018-11-23 07:45:11,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 07:45:11,862 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 881 transitions. [2018-11-23 07:45:11,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-23 07:45:11,864 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:45:11,864 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-11-23 07:45:11,864 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:45:11,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:45:11,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1343532233, now seen corresponding path program 1 times [2018-11-23 07:45:11,865 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:45:11,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:11,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:45:11,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:11,866 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:45:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:45:11,959 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 07:45:11,959 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:45:11,959 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:45:11,960 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 103 with the following transitions: [2018-11-23 07:45:11,961 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [26], [36], [37], [38], [39], [42], [44], [45], [48], [63], [66], [67], [71], [72], [74], [83], [87], [91], [94], [99], [102], [107], [110], [125], [126], [127], [128], [129], [131], [136], [139], [140], [142], [147], [149], [150], [155], [157], [163], [167], [200], [201], [209], [215], [219], [220], [223], [225], [228], [230], [233], [242], [243], [244], [245], [246], [247], [248], [249], [250], [252], [253], [254], [255], [260], [262], [263], [270], [271], [272], [273], [274], [275], [276], [280], [281], [282], [283], [284], [285], [288], [289], [290], [296], [297], [298], [300], [301], [302], [303], [304] [2018-11-23 07:45:11,987 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 07:45:11,987 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 07:45:12,374 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 07:45:12,375 INFO L272 AbstractInterpreter]: Visited 100 different actions 102 times. Never merged. Never widened. Performed 3240 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3240 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-23 07:45:12,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:45:12,401 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 07:45:12,401 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:45:12,401 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e6b32f61-7775-42a6-9f53-f05e86cc7353/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:45:12,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:45:12,409 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 07:45:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:45:12,504 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:45:12,638 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:45:12,638 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:45:13,270 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 07:45:13,286 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:45:13,286 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-11-23 07:45:13,286 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:45:13,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 07:45:13,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 07:45:13,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-23 07:45:13,287 INFO L87 Difference]: Start difference. First operand 751 states and 881 transitions. Second operand 8 states. [2018-11-23 07:45:13,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:45:13,459 INFO L93 Difference]: Finished difference Result 1450 states and 1712 transitions. [2018-11-23 07:45:13,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 07:45:13,459 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2018-11-23 07:45:13,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:45:13,461 INFO L225 Difference]: With dead ends: 1450 [2018-11-23 07:45:13,462 INFO L226 Difference]: Without dead ends: 723 [2018-11-23 07:45:13,463 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 187 SyntacticMatches, 7 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-23 07:45:13,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2018-11-23 07:45:13,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 723. [2018-11-23 07:45:13,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2018-11-23 07:45:13,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 835 transitions. [2018-11-23 07:45:13,489 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 835 transitions. Word has length 102 [2018-11-23 07:45:13,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:45:13,489 INFO L480 AbstractCegarLoop]: Abstraction has 723 states and 835 transitions. [2018-11-23 07:45:13,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 07:45:13,489 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 835 transitions. [2018-11-23 07:45:13,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-11-23 07:45:13,492 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:45:13,492 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 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] [2018-11-23 07:45:13,492 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:45:13,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:45:13,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1604124685, now seen corresponding path program 1 times [2018-11-23 07:45:13,492 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:45:13,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:13,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:45:13,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:45:13,493 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:45:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:45:13,598 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-23 07:45:13,598 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:45:13,598 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:45:13,598 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 154 with the following transitions: [2018-11-23 07:45:13,599 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [26], [33], [36], [37], [38], [39], [42], [44], [45], [48], [51], [53], [59], [63], [66], [67], [71], [72], [73], [74], [83], [87], [91], [94], [97], [99], [102], [105], [107], [110], [125], [126], [127], [128], [129], [131], [136], [139], [140], [142], [147], [149], [150], [155], [157], [160], [163], [167], [173], [200], [201], [204], [208], [209], [215], [219], [220], [223], [225], [228], [230], [233], [239], [241], [242], [243], [244], [245], [246], [247], [248], [249], [250], [252], [253], [254], [255], [258], [259], [260], [262], [263], [264], [265], [268], [269], [270], [271], [272], [273], [274], [275], [276], [277], [280], [281], [282], [283], [284], [285], [286], [287], [288], [289], [290], [291], [296], [297], [298], [300], [301], [302], [303], [304] [2018-11-23 07:45:13,602 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 07:45:13,602 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 07:45:15,826 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 07:45:15,826 INFO L272 AbstractInterpreter]: Visited 123 different actions 1169 times. Merged at 20 different actions 92 times. Never widened. Performed 43774 root evaluator evaluations with a maximum evaluation depth of 3. Performed 43774 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 23 fixpoints after 5 different actions. Largest state had 132 variables. [2018-11-23 07:45:15,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:45:15,828 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 07:45:15,828 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:45:15,829 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e6b32f61-7775-42a6-9f53-f05e86cc7353/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:45:15,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:45:15,836 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 07:45:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:45:15,919 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:45:16,015 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-23 07:45:16,015 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:45:16,294 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-23 07:45:16,309 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:45:16,309 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-11-23 07:45:16,309 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:45:16,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 07:45:16,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 07:45:16,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-23 07:45:16,310 INFO L87 Difference]: Start difference. First operand 723 states and 835 transitions. Second operand 8 states. [2018-11-23 07:45:16,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:45:16,481 INFO L93 Difference]: Finished difference Result 1223 states and 1430 transitions. [2018-11-23 07:45:16,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 07:45:16,482 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2018-11-23 07:45:16,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:45:16,483 INFO L225 Difference]: With dead ends: 1223 [2018-11-23 07:45:16,483 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 07:45:16,485 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 291 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-23 07:45:16,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 07:45:16,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 07:45:16,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 07:45:16,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 07:45:16,486 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 153 [2018-11-23 07:45:16,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:45:16,486 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 07:45:16,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 07:45:16,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 07:45:16,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 07:45:16,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 07:45:17,777 WARN L180 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 30 [2018-11-23 07:45:18,679 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 29 [2018-11-23 07:45:18,681 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 297 303) the Hoare annotation is: true [2018-11-23 07:45:18,681 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 297 303) no Hoare annotation was computed. [2018-11-23 07:45:18,681 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 304 312) no Hoare annotation was computed. [2018-11-23 07:45:18,681 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 304 312) the Hoare annotation is: true [2018-11-23 07:45:18,681 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 304 312) no Hoare annotation was computed. [2018-11-23 07:45:18,681 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 255 277) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 07:45:18,681 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 255 277) no Hoare annotation was computed. [2018-11-23 07:45:18,681 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 255 277) no Hoare annotation was computed. [2018-11-23 07:45:18,681 INFO L444 ceAbstractionStarter]: At program point L267(line 267) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= main_~tmp~1 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-23 07:45:18,682 INFO L444 ceAbstractionStarter]: At program point L267-1(line 267) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= main_~tmp~1 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-23 07:45:18,682 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 272) no Hoare annotation was computed. [2018-11-23 07:45:18,682 INFO L448 ceAbstractionStarter]: For program point L265-1(lines 265 272) no Hoare annotation was computed. [2018-11-23 07:45:18,682 INFO L448 ceAbstractionStarter]: For program point L263(line 263) no Hoare annotation was computed. [2018-11-23 07:45:18,682 INFO L444 ceAbstractionStarter]: At program point L262(line 262) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 07:45:18,682 INFO L444 ceAbstractionStarter]: At program point L261(line 261) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 07:45:18,682 INFO L444 ceAbstractionStarter]: At program point L261-1(line 261) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 07:45:18,682 INFO L444 ceAbstractionStarter]: At program point L801(line 801) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or .cse0 .cse1 .cse2) (or .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse2))) [2018-11-23 07:45:18,682 INFO L448 ceAbstractionStarter]: For program point L801-1(lines 782 806) no Hoare annotation was computed. [2018-11-23 07:45:18,683 INFO L444 ceAbstractionStarter]: At program point L796(line 796) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse3 (and (= 0 processEnvironment__wrappee__methaneQuery_~tmp~6) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse1) (or (< ~methaneLevelCritical~0 1) (not .cse2) .cse3 .cse0))) [2018-11-23 07:45:18,683 INFO L444 ceAbstractionStarter]: At program point L792(line 792) the Hoare annotation is: (let ((.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (= ~waterLevel~0 1))) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1) .cse2) (or .cse2 (not (= ~methaneLevelCritical~0 0)) (and (= 0 ~pumpRunning~0) .cse0 .cse1)))) [2018-11-23 07:45:18,683 INFO L448 ceAbstractionStarter]: For program point L790(lines 790 798) no Hoare annotation was computed. [2018-11-23 07:45:18,683 INFO L444 ceAbstractionStarter]: At program point L788(line 788) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse3 (< ~methaneLevelCritical~0 1) (not .cse2) .cse0))) [2018-11-23 07:45:18,683 INFO L448 ceAbstractionStarter]: For program point L788-1(line 788) no Hoare annotation was computed. [2018-11-23 07:45:18,683 INFO L448 ceAbstractionStarter]: For program point L786(lines 786 803) no Hoare annotation was computed. [2018-11-23 07:45:18,683 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 782 806) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse1) (or .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-11-23 07:45:18,683 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 782 806) no Hoare annotation was computed. [2018-11-23 07:45:18,683 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 877 885) no Hoare annotation was computed. [2018-11-23 07:45:18,683 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 877 885) the Hoare annotation is: true [2018-11-23 07:45:18,683 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 877 885) no Hoare annotation was computed. [2018-11-23 07:45:18,683 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 290 296) no Hoare annotation was computed. [2018-11-23 07:45:18,684 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 290 296) the Hoare annotation is: true [2018-11-23 07:45:18,684 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 242 251) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 07:45:18,684 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 242 251) no Hoare annotation was computed. [2018-11-23 07:45:18,684 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 242 251) no Hoare annotation was computed. [2018-11-23 07:45:18,686 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 866 876) the Hoare annotation is: true [2018-11-23 07:45:18,686 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 866 876) no Hoare annotation was computed. [2018-11-23 07:45:18,686 INFO L451 ceAbstractionStarter]: At program point L871(line 871) the Hoare annotation is: true [2018-11-23 07:45:18,686 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 866 876) no Hoare annotation was computed. [2018-11-23 07:45:18,686 INFO L448 ceAbstractionStarter]: For program point L871-1(line 871) no Hoare annotation was computed. [2018-11-23 07:45:18,686 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 858 865) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1))) (.cse2 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or (< ~methaneLevelCritical~0 1) .cse1 .cse0 .cse2))) [2018-11-23 07:45:18,686 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 858 865) no Hoare annotation was computed. [2018-11-23 07:45:18,686 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 858 865) no Hoare annotation was computed. [2018-11-23 07:45:18,686 INFO L444 ceAbstractionStarter]: At program point L827(line 827) the Hoare annotation is: (let ((.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse1 .cse3 .cse2) (or .cse4 .cse1 .cse3) (or .cse4 .cse0 .cse1))) [2018-11-23 07:45:18,686 INFO L448 ceAbstractionStarter]: For program point L827-1(lines 808 832) no Hoare annotation was computed. [2018-11-23 07:45:18,686 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 808 832) no Hoare annotation was computed. [2018-11-23 07:45:18,687 INFO L444 ceAbstractionStarter]: At program point L822(line 822) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (< ~methaneLevelCritical~0 1) .cse0) (or .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1))) [2018-11-23 07:45:18,687 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 808 832) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse1 .cse0))) [2018-11-23 07:45:18,687 INFO L444 ceAbstractionStarter]: At program point L818(line 818) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 .cse2 .cse3) (or (and (<= ~methaneLevelCritical~0 processEnvironment_~tmp~7) .cse4) .cse0 .cse2) (or .cse2 .cse4 .cse3))) [2018-11-23 07:45:18,687 INFO L448 ceAbstractionStarter]: For program point L816(lines 816 824) no Hoare annotation was computed. [2018-11-23 07:45:18,687 INFO L444 ceAbstractionStarter]: At program point L814(line 814) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse1 .cse2 .cse3) (or .cse2 .cse4 .cse3) (or .cse0 .cse4 .cse2))) [2018-11-23 07:45:18,687 INFO L448 ceAbstractionStarter]: For program point L814-1(line 814) no Hoare annotation was computed. [2018-11-23 07:45:18,687 INFO L448 ceAbstractionStarter]: For program point L812(lines 812 829) no Hoare annotation was computed. [2018-11-23 07:45:18,687 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 126 139) no Hoare annotation was computed. [2018-11-23 07:45:18,687 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 126 139) the Hoare annotation is: true [2018-11-23 07:45:18,687 INFO L448 ceAbstractionStarter]: For program point L130(lines 130 136) no Hoare annotation was computed. [2018-11-23 07:45:18,687 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 126 139) no Hoare annotation was computed. [2018-11-23 07:45:18,687 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 774 780) no Hoare annotation was computed. [2018-11-23 07:45:18,687 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 774 780) the Hoare annotation is: true [2018-11-23 07:45:18,688 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 680 743) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 07:45:18,688 INFO L444 ceAbstractionStarter]: At program point L702(line 702) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (and (= 0 ~pumpRunning~0) .cse0) (<= 1 ~methaneLevelCritical~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0))) [2018-11-23 07:45:18,688 INFO L444 ceAbstractionStarter]: At program point L733(lines 690 735) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (<= 1 ~methaneLevelCritical~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0))) [2018-11-23 07:45:18,688 INFO L448 ceAbstractionStarter]: For program point L700(lines 700 706) no Hoare annotation was computed. [2018-11-23 07:45:18,688 INFO L448 ceAbstractionStarter]: For program point L700-1(lines 700 706) no Hoare annotation was computed. [2018-11-23 07:45:18,688 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 680 743) no Hoare annotation was computed. [2018-11-23 07:45:18,688 INFO L448 ceAbstractionStarter]: For program point L692(lines 692 696) no Hoare annotation was computed. [2018-11-23 07:45:18,688 INFO L444 ceAbstractionStarter]: At program point L736(lines 689 737) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 07:45:18,688 INFO L448 ceAbstractionStarter]: For program point L726(lines 726 730) no Hoare annotation was computed. [2018-11-23 07:45:18,688 INFO L444 ceAbstractionStarter]: At program point L726-2(lines 720 731) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0))) [2018-11-23 07:45:18,689 INFO L448 ceAbstractionStarter]: For program point L691(lines 690 735) no Hoare annotation was computed. [2018-11-23 07:45:18,689 INFO L448 ceAbstractionStarter]: For program point L720(lines 720 731) no Hoare annotation was computed. [2018-11-23 07:45:18,689 INFO L444 ceAbstractionStarter]: At program point L712(line 712) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (<= 1 ~methaneLevelCritical~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0))) [2018-11-23 07:45:18,689 INFO L448 ceAbstractionStarter]: For program point L710(lines 710 716) no Hoare annotation was computed. [2018-11-23 07:45:18,689 INFO L448 ceAbstractionStarter]: For program point L710-1(lines 710 716) no Hoare annotation was computed. [2018-11-23 07:45:18,689 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 680 743) no Hoare annotation was computed. [2018-11-23 07:45:18,689 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__highWaterSensorENTRY(lines 833 840) the Hoare annotation is: (or (= ~waterLevel~0 1) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-23 07:45:18,689 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorEXIT(lines 833 840) no Hoare annotation was computed. [2018-11-23 07:45:18,689 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorFINAL(lines 833 840) no Hoare annotation was computed. [2018-11-23 07:45:18,689 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 07:45:18,689 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |old(~pumpRunning~0)| ~pumpRunning~0) [2018-11-23 07:45:18,689 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 07:45:18,689 INFO L448 ceAbstractionStarter]: For program point L848(lines 848 854) no Hoare annotation was computed. [2018-11-23 07:45:18,689 INFO L444 ceAbstractionStarter]: At program point L846(line 846) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2018-11-23 07:45:18,690 INFO L448 ceAbstractionStarter]: For program point L846-1(line 846) no Hoare annotation was computed. [2018-11-23 07:45:18,690 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 841 857) no Hoare annotation was computed. [2018-11-23 07:45:18,690 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 841 857) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2018-11-23 07:45:18,690 INFO L444 ceAbstractionStarter]: At program point L852(line 852) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) [2018-11-23 07:45:18,690 INFO L448 ceAbstractionStarter]: For program point L852-1(lines 841 857) no Hoare annotation was computed. [2018-11-23 07:45:18,690 INFO L451 ceAbstractionStarter]: At program point L929(line 929) the Hoare annotation is: true [2018-11-23 07:45:18,690 INFO L448 ceAbstractionStarter]: For program point L931-2(lines 931 935) no Hoare annotation was computed. [2018-11-23 07:45:18,690 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 922 940) no Hoare annotation was computed. [2018-11-23 07:45:18,690 INFO L448 ceAbstractionStarter]: For program point L929-1(line 929) no Hoare annotation was computed. [2018-11-23 07:45:18,690 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 922 940) the Hoare annotation is: true [2018-11-23 07:45:18,690 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 922 940) no Hoare annotation was computed. [2018-11-23 07:45:18,690 INFO L448 ceAbstractionStarter]: For program point L931(lines 931 935) no Hoare annotation was computed. [2018-11-23 07:45:18,690 INFO L448 ceAbstractionStarter]: For program point L77-1(lines 73 84) no Hoare annotation was computed. [2018-11-23 07:45:18,690 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 73 84) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (<= 1 ~methaneLevelCritical~0) (< |old(~methaneLevelCritical~0)| 1) (not (= 0 ~pumpRunning~0)) .cse0) (or (= 0 ~methaneLevelCritical~0) .cse0 (not (= |old(~methaneLevelCritical~0)| 0))))) [2018-11-23 07:45:18,691 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 73 84) no Hoare annotation was computed. [2018-11-23 07:45:18,691 INFO L444 ceAbstractionStarter]: At program point L763(line 763) the Hoare annotation is: (let ((.cse4 (= |old(~waterLevel~0)| 1))) (let ((.cse6 (not (= ~waterLevel~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse7 (= 1 ~waterLevel~0)) (.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse8 (not .cse4)) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5 .cse6 .cse1) (or .cse4 .cse5 .cse1 .cse2 .cse6) (or .cse5 .cse7 .cse1 .cse8 .cse2) (or .cse7 .cse3 .cse5 .cse1 .cse8) (or .cse3 .cse0 .cse1)))) [2018-11-23 07:45:18,691 INFO L444 ceAbstractionStarter]: At program point L761(lines 761 767) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| 1))) (let ((.cse3 (not (= ~waterLevel~0 1))) (.cse5 (= 0 ~pumpRunning~0)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse7 (= 1 ~waterLevel~0)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not (= ~systemActive~0 1))) (.cse8 (not .cse1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse5 .cse4 .cse6) (or .cse1 .cse3 .cse4 .cse2 .cse6) (or .cse0 .cse5 .cse4) (or .cse2 .cse7 .cse4 .cse8 .cse6) (or .cse7 .cse0 .cse2 .cse4 .cse8)))) [2018-11-23 07:45:18,691 INFO L444 ceAbstractionStarter]: At program point L756(line 756) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse2 (and .cse1 .cse3) (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse3 .cse2))) [2018-11-23 07:45:18,691 INFO L448 ceAbstractionStarter]: For program point L754(lines 753 772) no Hoare annotation was computed. [2018-11-23 07:45:18,691 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 750 773) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| 1))) (let ((.cse7 (= 1 ~waterLevel~0)) (.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse8 (not .cse1)) (.cse3 (not (= ~waterLevel~0 1))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse2 .cse5) (or .cse6 .cse7 .cse2 .cse8 .cse5) (or .cse7 .cse0 .cse6 .cse2 .cse8) (or .cse1 .cse2 .cse3 .cse5) (or .cse0 .cse4 .cse2)))) [2018-11-23 07:45:18,691 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 750 773) no Hoare annotation was computed. [2018-11-23 07:45:18,691 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 750 773) no Hoare annotation was computed. [2018-11-23 07:45:18,691 INFO L448 ceAbstractionStarter]: For program point L193(lines 193 197) no Hoare annotation was computed. [2018-11-23 07:45:18,691 INFO L451 ceAbstractionStarter]: At program point L193-1(lines 193 197) the Hoare annotation is: true [2018-11-23 07:45:18,691 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 179 208) no Hoare annotation was computed. [2018-11-23 07:45:18,692 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-23 07:45:18,692 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 179 208) the Hoare annotation is: true [2018-11-23 07:45:18,692 INFO L451 ceAbstractionStarter]: At program point L189-2(lines 189 203) the Hoare annotation is: true [2018-11-23 07:45:18,692 INFO L451 ceAbstractionStarter]: At program point L185(line 185) the Hoare annotation is: true [2018-11-23 07:45:18,692 INFO L448 ceAbstractionStarter]: For program point L185-1(line 185) no Hoare annotation was computed. [2018-11-23 07:45:18,693 INFO L451 ceAbstractionStarter]: At program point L204(lines 179 208) the Hoare annotation is: true [2018-11-23 07:45:18,693 INFO L448 ceAbstractionStarter]: For program point L200(line 200) no Hoare annotation was computed. [2018-11-23 07:45:18,693 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 85 93) the Hoare annotation is: true [2018-11-23 07:45:18,693 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 85 93) no Hoare annotation was computed. [2018-11-23 07:45:18,693 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 85 93) no Hoare annotation was computed. [2018-11-23 07:45:18,693 INFO L451 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 49 60) the Hoare annotation is: true [2018-11-23 07:45:18,693 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 49 60) no Hoare annotation was computed. [2018-11-23 07:45:18,694 INFO L448 ceAbstractionStarter]: For program point L53-1(lines 49 60) no Hoare annotation was computed. [2018-11-23 07:45:18,694 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 234 240) no Hoare annotation was computed. [2018-11-23 07:45:18,694 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 234 240) the Hoare annotation is: true [2018-11-23 07:45:18,694 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 07:45:18,694 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1)) [2018-11-23 07:45:18,694 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 07:45:18,694 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 07:45:18,694 INFO L448 ceAbstractionStarter]: For program point L65-1(lines 61 72) no Hoare annotation was computed. [2018-11-23 07:45:18,694 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 61 72) no Hoare annotation was computed. [2018-11-23 07:45:18,694 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 61 72) the Hoare annotation is: (let ((.cse1 (= 1 ~waterLevel~0)) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= |old(~waterLevel~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or .cse1 (< ~methaneLevelCritical~0 1) .cse0 .cse2 .cse3))) [2018-11-23 07:45:18,694 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2018-11-23 07:45:18,695 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 141 148) no Hoare annotation was computed. [2018-11-23 07:45:18,695 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 141 148) the Hoare annotation is: true [2018-11-23 07:45:18,695 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 141 148) no Hoare annotation was computed. [2018-11-23 07:45:18,695 INFO L444 ceAbstractionStarter]: At program point L161(line 161) the Hoare annotation is: (or (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) [2018-11-23 07:45:18,695 INFO L448 ceAbstractionStarter]: For program point L161-1(line 161) no Hoare annotation was computed. [2018-11-23 07:45:18,695 INFO L448 ceAbstractionStarter]: For program point L159(lines 159 172) no Hoare annotation was computed. [2018-11-23 07:45:18,695 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 151 175) no Hoare annotation was computed. [2018-11-23 07:45:18,695 INFO L451 ceAbstractionStarter]: At program point L157(line 157) the Hoare annotation is: true [2018-11-23 07:45:18,695 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 151 175) the Hoare annotation is: true [2018-11-23 07:45:18,695 INFO L448 ceAbstractionStarter]: For program point L157-1(line 157) no Hoare annotation was computed. [2018-11-23 07:45:18,695 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification1_spec__1EXIT(lines 151 175) no Hoare annotation was computed. [2018-11-23 07:45:18,695 INFO L444 ceAbstractionStarter]: At program point L165(line 165) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 ~pumpRunning~0)) .cse0) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-11-23 07:45:18,695 INFO L448 ceAbstractionStarter]: For program point L163(lines 163 169) no Hoare annotation was computed. [2018-11-23 07:45:18,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 07:45:18 BoogieIcfgContainer [2018-11-23 07:45:18,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 07:45:18,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 07:45:18,717 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 07:45:18,717 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 07:45:18,717 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:45:09" (3/4) ... [2018-11-23 07:45:18,720 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 07:45:18,725 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-23 07:45:18,725 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-23 07:45:18,725 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 07:45:18,726 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-11-23 07:45:18,726 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-23 07:45:18,726 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-23 07:45:18,726 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-23 07:45:18,726 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-23 07:45:18,726 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-23 07:45:18,726 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-23 07:45:18,726 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-23 07:45:18,726 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-23 07:45:18,726 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-23 07:45:18,726 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__highWaterSensor [2018-11-23 07:45:18,726 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 07:45:18,726 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-23 07:45:18,727 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-23 07:45:18,727 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-23 07:45:18,727 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-23 07:45:18,727 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-23 07:45:18,727 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-23 07:45:18,727 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-23 07:45:18,727 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-23 07:45:18,727 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-23 07:45:18,728 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-23 07:45:18,728 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification1_spec__1 [2018-11-23 07:45:18,738 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2018-11-23 07:45:18,738 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-23 07:45:18,739 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-23 07:45:18,739 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 07:45:18,739 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 07:45:18,739 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 07:45:18,740 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 07:45:18,765 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(0 == \old(pumpRunning)) || ((0 == pumpRunning && 1 <= methaneLevelCritical) && splverifierCounter == 0)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (0 == methaneLevelCritical && splverifierCounter == 0) [2018-11-23 07:45:18,765 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-23 07:45:18,795 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e6b32f61-7775-42a6-9f53-f05e86cc7353/bin-2019/utaipan/witness.graphml [2018-11-23 07:45:18,796 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 07:45:18,797 INFO L168 Benchmark]: Toolchain (without parser) took 10570.28 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 501.2 MB). Free memory was 957.0 MB in the beginning and 1.2 GB in the end (delta: -274.7 MB). Peak memory consumption was 226.5 MB. Max. memory is 11.5 GB. [2018-11-23 07:45:18,797 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:45:18,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 957.0 MB in the beginning and 1.1 GB in the end (delta: -171.3 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-11-23 07:45:18,798 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:45:18,798 INFO L168 Benchmark]: Boogie Preprocessor took 23.95 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 07:45:18,798 INFO L168 Benchmark]: RCFGBuilder took 487.47 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: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. [2018-11-23 07:45:18,798 INFO L168 Benchmark]: TraceAbstraction took 9586.70 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 361.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -169.2 MB). Peak memory consumption was 499.0 MB. Max. memory is 11.5 GB. [2018-11-23 07:45:18,799 INFO L168 Benchmark]: Witness Printer took 79.55 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-11-23 07:45:18,800 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 368.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 957.0 MB in the beginning and 1.1 GB in the end (delta: -171.3 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.69 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 23.95 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 487.47 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: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9586.70 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 361.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -169.2 MB). Peak memory consumption was 499.0 MB. Max. memory is 11.5 GB. * Witness Printer took 79.55 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: 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: 189]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 690]: Loop Invariant Derived loop invariant: ((((!(0 == \old(pumpRunning)) || ((0 == pumpRunning && 1 <= methaneLevelCritical) && splverifierCounter == 0)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (0 == methaneLevelCritical && splverifierCounter == 0) - InvariantResult [Line: 689]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 143 locations, 1 error locations. SAFE Result, 9.5s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 2.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 1870 SDtfs, 991 SDslu, 4681 SDs, 0 SdLazy, 1471 SolverSat, 287 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 625 GetRequests, 520 SyntacticMatches, 13 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=751occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.6s AbstIntTime, 2 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 79 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 60 LocationsWithAnnotation, 1513 PreInvPairs, 1601 NumberOfFragments, 1449 HoareAnnotationTreeSize, 1513 FomulaSimplifications, 1494 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 60 FomulaSimplificationsInter, 6935 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 1172 NumberOfCodeBlocks, 1172 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1412 ConstructedInterpolants, 0 QuantifiedInterpolants, 237989 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1592 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 154/162 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...