./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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9af759cd-89d1-4395-9b29-eecee481fbf8/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9af759cd-89d1-4395-9b29-eecee481fbf8/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9af759cd-89d1-4395-9b29-eecee481fbf8/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9af759cd-89d1-4395-9b29-eecee481fbf8/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_9af759cd-89d1-4395-9b29-eecee481fbf8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9af759cd-89d1-4395-9b29-eecee481fbf8/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 0.1.23-635dfa2 [2018-12-09 10:30:29,688 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:30:29,689 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:30:29,695 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:30:29,695 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:30:29,696 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:30:29,696 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:30:29,697 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:30:29,698 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:30:29,698 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:30:29,699 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:30:29,699 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:30:29,699 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:30:29,700 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:30:29,700 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:30:29,701 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:30:29,701 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:30:29,702 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:30:29,703 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:30:29,704 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:30:29,704 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:30:29,705 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:30:29,706 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:30:29,706 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:30:29,706 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:30:29,706 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:30:29,707 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:30:29,707 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:30:29,708 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:30:29,708 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:30:29,708 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:30:29,709 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:30:29,709 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:30:29,709 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:30:29,710 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:30:29,710 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:30:29,710 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9af759cd-89d1-4395-9b29-eecee481fbf8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 10:30:29,717 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:30:29,717 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:30:29,718 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 10:30:29,718 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 10:30:29,718 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 10:30:29,718 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 10:30:29,718 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 10:30:29,718 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 10:30:29,718 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 10:30:29,719 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 10:30:29,719 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 10:30:29,719 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 10:30:29,719 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 10:30:29,719 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:30:29,720 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:30:29,720 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 10:30:29,720 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:30:29,720 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:30:29,720 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 10:30:29,720 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 10:30:29,720 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 10:30:29,720 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:30:29,721 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 10:30:29,721 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 10:30:29,721 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:30:29,721 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 10:30:29,721 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 10:30:29,721 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 10:30:29,721 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:30:29,721 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:30:29,721 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 10:30:29,722 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 10:30:29,722 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 10:30:29,722 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 10:30:29,722 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 10:30:29,722 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 10:30:29,722 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_9af759cd-89d1-4395-9b29-eecee481fbf8/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 [2018-12-09 10:30:29,740 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:30:29,749 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:30:29,752 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:30:29,753 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:30:29,754 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:30:29,754 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9af759cd-89d1-4395-9b29-eecee481fbf8/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product45_true-unreach-call_false-termination.cil.c [2018-12-09 10:30:29,793 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9af759cd-89d1-4395-9b29-eecee481fbf8/bin-2019/utaipan/data/6c8c30eab/ff0b72fbee8e4ce39f12d7f0de73b0ae/FLAG912018e55 [2018-12-09 10:30:30,287 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:30:30,288 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9af759cd-89d1-4395-9b29-eecee481fbf8/sv-benchmarks/c/product-lines/minepump_spec1_product45_true-unreach-call_false-termination.cil.c [2018-12-09 10:30:30,294 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9af759cd-89d1-4395-9b29-eecee481fbf8/bin-2019/utaipan/data/6c8c30eab/ff0b72fbee8e4ce39f12d7f0de73b0ae/FLAG912018e55 [2018-12-09 10:30:30,302 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9af759cd-89d1-4395-9b29-eecee481fbf8/bin-2019/utaipan/data/6c8c30eab/ff0b72fbee8e4ce39f12d7f0de73b0ae [2018-12-09 10:30:30,304 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:30:30,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:30:30,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:30:30,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:30:30,307 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:30:30,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:30:30" (1/1) ... [2018-12-09 10:30:30,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:30, skipping insertion in model container [2018-12-09 10:30:30,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:30:30" (1/1) ... [2018-12-09 10:30:30,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:30:30,334 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:30:30,479 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:30:30,517 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:30:30,558 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:30:30,573 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:30:30,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:30 WrapperNode [2018-12-09 10:30:30,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:30:30,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:30:30,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:30:30,575 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:30:30,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:30" (1/1) ... [2018-12-09 10:30:30,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:30" (1/1) ... [2018-12-09 10:30:30,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:30:30,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:30:30,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:30:30,594 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:30:30,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:30" (1/1) ... [2018-12-09 10:30:30,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:30" (1/1) ... [2018-12-09 10:30:30,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:30" (1/1) ... [2018-12-09 10:30:30,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:30" (1/1) ... [2018-12-09 10:30:30,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:30" (1/1) ... [2018-12-09 10:30:30,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:30" (1/1) ... [2018-12-09 10:30:30,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:30" (1/1) ... [2018-12-09 10:30:30,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:30:30,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:30:30,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:30:30,616 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:30:30,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9af759cd-89d1-4395-9b29-eecee481fbf8/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:30:30,651 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 10:30:30,651 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 10:30:30,651 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 10:30:30,651 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 10:30:30,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 10:30:30,651 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 10:30:30,651 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 10:30:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 10:30:30,652 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 10:30:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 10:30:30,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 10:30:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 10:30:30,652 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 10:30:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 10:30:30,652 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 10:30:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 10:30:30,652 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 10:30:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 10:30:30,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 10:30:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 10:30:30,653 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 10:30:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 10:30:30,653 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 10:30:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 10:30:30,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 10:30:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 10:30:30,653 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 10:30:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 10:30:30,654 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 10:30:30,654 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 10:30:30,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 10:30:30,654 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 10:30:30,654 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 10:30:30,654 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-12-09 10:30:30,654 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-12-09 10:30:30,654 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 10:30:30,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 10:30:30,655 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 10:30:30,655 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 10:30:30,655 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 10:30:30,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 10:30:30,655 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 10:30:30,655 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 10:30:30,655 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-09 10:30:30,655 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-09 10:30:30,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 10:30:30,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 10:30:30,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 10:30:30,656 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 10:30:30,656 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 10:30:30,656 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 10:30:30,656 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 10:30:30,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:30:30,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:30:30,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-09 10:30:30,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-09 10:30:30,942 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:30:30,943 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 10:30:30,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:30:30 BoogieIcfgContainer [2018-12-09 10:30:30,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:30:30,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 10:30:30,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 10:30:30,946 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 10:30:30,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:30:30" (1/3) ... [2018-12-09 10:30:30,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f8153c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:30:30, skipping insertion in model container [2018-12-09 10:30:30,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:30" (2/3) ... [2018-12-09 10:30:30,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f8153c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:30:30, skipping insertion in model container [2018-12-09 10:30:30,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:30:30" (3/3) ... [2018-12-09 10:30:30,948 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product45_true-unreach-call_false-termination.cil.c [2018-12-09 10:30:30,954 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 10:30:30,959 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 10:30:30,968 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 10:30:30,987 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 10:30:30,987 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 10:30:30,987 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 10:30:30,987 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 10:30:30,987 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 10:30:30,987 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 10:30:30,987 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 10:30:30,988 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 10:30:30,999 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2018-12-09 10:30:31,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 10:30:31,004 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:30:31,005 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:30:31,006 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:30:31,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:30:31,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1859376885, now seen corresponding path program 1 times [2018-12-09 10:30:31,011 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:30:31,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:31,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:30:31,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:31,040 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:30:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:30:31,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:30:31,152 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:30:31,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 10:30:31,152 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:30:31,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 10:30:31,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 10:30:31,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 10:30:31,165 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 2 states. [2018-12-09 10:30:31,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:30:31,189 INFO L93 Difference]: Finished difference Result 260 states and 325 transitions. [2018-12-09 10:30:31,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 10:30:31,190 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 10:30:31,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:30:31,197 INFO L225 Difference]: With dead ends: 260 [2018-12-09 10:30:31,197 INFO L226 Difference]: Without dead ends: 130 [2018-12-09 10:30:31,199 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 10:30:31,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-12-09 10:30:31,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-12-09 10:30:31,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-12-09 10:30:31,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 154 transitions. [2018-12-09 10:30:31,230 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 154 transitions. Word has length 46 [2018-12-09 10:30:31,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:30:31,230 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 154 transitions. [2018-12-09 10:30:31,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 10:30:31,230 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 154 transitions. [2018-12-09 10:30:31,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 10:30:31,232 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:30:31,232 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:30:31,232 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:30:31,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:30:31,232 INFO L82 PathProgramCache]: Analyzing trace with hash -816350, now seen corresponding path program 1 times [2018-12-09 10:30:31,232 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:30:31,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:31,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:30:31,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:31,233 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:30:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:30:31,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:30:31,283 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:30:31,283 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 10:30:31,283 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:30:31,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 10:30:31,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 10:30:31,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:30:31,284 INFO L87 Difference]: Start difference. First operand 130 states and 154 transitions. Second operand 3 states. [2018-12-09 10:30:31,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:30:31,297 INFO L93 Difference]: Finished difference Result 209 states and 247 transitions. [2018-12-09 10:30:31,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 10:30:31,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 10:30:31,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:30:31,298 INFO L225 Difference]: With dead ends: 209 [2018-12-09 10:30:31,298 INFO L226 Difference]: Without dead ends: 121 [2018-12-09 10:30:31,299 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:30:31,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-12-09 10:30:31,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-12-09 10:30:31,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-12-09 10:30:31,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 142 transitions. [2018-12-09 10:30:31,306 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 142 transitions. Word has length 47 [2018-12-09 10:30:31,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:30:31,306 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 142 transitions. [2018-12-09 10:30:31,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 10:30:31,306 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 142 transitions. [2018-12-09 10:30:31,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 10:30:31,307 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:30:31,307 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:30:31,307 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:30:31,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:30:31,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1070515485, now seen corresponding path program 1 times [2018-12-09 10:30:31,308 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:30:31,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:31,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:30:31,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:31,308 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:30:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:30:31,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:30:31,385 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:30:31,385 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 10:30:31,385 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:30:31,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 10:30:31,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 10:30:31,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:30:31,386 INFO L87 Difference]: Start difference. First operand 121 states and 142 transitions. Second operand 7 states. [2018-12-09 10:30:31,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:30:31,562 INFO L93 Difference]: Finished difference Result 218 states and 261 transitions. [2018-12-09 10:30:31,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 10:30:31,563 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-09 10:30:31,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:30:31,564 INFO L225 Difference]: With dead ends: 218 [2018-12-09 10:30:31,564 INFO L226 Difference]: Without dead ends: 121 [2018-12-09 10:30:31,565 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 10:30:31,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-12-09 10:30:31,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-12-09 10:30:31,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-12-09 10:30:31,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2018-12-09 10:30:31,575 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 141 transitions. Word has length 51 [2018-12-09 10:30:31,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:30:31,576 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 141 transitions. [2018-12-09 10:30:31,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 10:30:31,576 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 141 transitions. [2018-12-09 10:30:31,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-09 10:30:31,578 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:30:31,578 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] [2018-12-09 10:30:31,578 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:30:31,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:30:31,579 INFO L82 PathProgramCache]: Analyzing trace with hash -912181828, now seen corresponding path program 1 times [2018-12-09 10:30:31,579 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:30:31,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:31,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:30:31,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:31,580 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:30:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:30:31,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:30:31,649 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:30:31,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 10:30:31,649 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:30:31,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 10:30:31,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 10:30:31,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 10:30:31,649 INFO L87 Difference]: Start difference. First operand 121 states and 141 transitions. Second operand 5 states. [2018-12-09 10:30:31,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:30:31,924 INFO L93 Difference]: Finished difference Result 319 states and 386 transitions. [2018-12-09 10:30:31,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 10:30:31,924 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2018-12-09 10:30:31,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:30:31,926 INFO L225 Difference]: With dead ends: 319 [2018-12-09 10:30:31,926 INFO L226 Difference]: Without dead ends: 222 [2018-12-09 10:30:31,927 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 [2018-12-09 10:30:31,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-12-09 10:30:31,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 204. [2018-12-09 10:30:31,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-12-09 10:30:31,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 233 transitions. [2018-12-09 10:30:31,948 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 233 transitions. Word has length 64 [2018-12-09 10:30:31,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:30:31,949 INFO L480 AbstractCegarLoop]: Abstraction has 204 states and 233 transitions. [2018-12-09 10:30:31,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 10:30:31,949 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 233 transitions. [2018-12-09 10:30:31,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-09 10:30:31,950 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:30:31,950 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] [2018-12-09 10:30:31,951 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:30:31,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:30:31,951 INFO L82 PathProgramCache]: Analyzing trace with hash -988770391, now seen corresponding path program 1 times [2018-12-09 10:30:31,951 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:30:31,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:31,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:30:31,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:31,952 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:30:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:30:32,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:30:32,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:30:32,011 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 10:30:32,011 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:30:32,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 10:30:32,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 10:30:32,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 10:30:32,012 INFO L87 Difference]: Start difference. First operand 204 states and 233 transitions. Second operand 6 states. [2018-12-09 10:30:32,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:30:32,158 INFO L93 Difference]: Finished difference Result 549 states and 649 transitions. [2018-12-09 10:30:32,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 10:30:32,158 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2018-12-09 10:30:32,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:30:32,160 INFO L225 Difference]: With dead ends: 549 [2018-12-09 10:30:32,161 INFO L226 Difference]: Without dead ends: 369 [2018-12-09 10:30:32,161 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 [2018-12-09 10:30:32,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2018-12-09 10:30:32,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 363. [2018-12-09 10:30:32,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2018-12-09 10:30:32,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 416 transitions. [2018-12-09 10:30:32,188 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 416 transitions. Word has length 78 [2018-12-09 10:30:32,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:30:32,188 INFO L480 AbstractCegarLoop]: Abstraction has 363 states and 416 transitions. [2018-12-09 10:30:32,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 10:30:32,188 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 416 transitions. [2018-12-09 10:30:32,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-12-09 10:30:32,189 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:30:32,190 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] [2018-12-09 10:30:32,190 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:30:32,190 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:30:32,190 INFO L82 PathProgramCache]: Analyzing trace with hash 610145221, now seen corresponding path program 1 times [2018-12-09 10:30:32,190 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:30:32,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:32,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:30:32,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:32,191 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:30:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:30:32,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:30:32,279 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:30:32,279 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 10:30:32,279 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:30:32,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 10:30:32,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 10:30:32,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:30:32,280 INFO L87 Difference]: Start difference. First operand 363 states and 416 transitions. Second operand 7 states. [2018-12-09 10:30:32,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:30:32,598 INFO L93 Difference]: Finished difference Result 396 states and 466 transitions. [2018-12-09 10:30:32,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 10:30:32,598 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2018-12-09 10:30:32,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:30:32,600 INFO L225 Difference]: With dead ends: 396 [2018-12-09 10:30:32,600 INFO L226 Difference]: Without dead ends: 393 [2018-12-09 10:30:32,600 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 [2018-12-09 10:30:32,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2018-12-09 10:30:32,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 363. [2018-12-09 10:30:32,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2018-12-09 10:30:32,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 415 transitions. [2018-12-09 10:30:32,621 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 415 transitions. Word has length 82 [2018-12-09 10:30:32,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:30:32,621 INFO L480 AbstractCegarLoop]: Abstraction has 363 states and 415 transitions. [2018-12-09 10:30:32,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 10:30:32,622 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 415 transitions. [2018-12-09 10:30:32,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-12-09 10:30:32,623 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:30:32,623 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] [2018-12-09 10:30:32,624 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:30:32,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:30:32,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1887685164, now seen corresponding path program 1 times [2018-12-09 10:30:32,624 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:30:32,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:32,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:30:32,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:32,625 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:30:32,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:30:32,683 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 10:30:32,683 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:30:32,683 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 10:30:32,683 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:30:32,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 10:30:32,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 10:30:32,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 10:30:32,684 INFO L87 Difference]: Start difference. First operand 363 states and 415 transitions. Second operand 6 states. [2018-12-09 10:30:32,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:30:32,720 INFO L93 Difference]: Finished difference Result 716 states and 838 transitions. [2018-12-09 10:30:32,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 10:30:32,721 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2018-12-09 10:30:32,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:30:32,723 INFO L225 Difference]: With dead ends: 716 [2018-12-09 10:30:32,723 INFO L226 Difference]: Without dead ends: 377 [2018-12-09 10:30:32,724 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 [2018-12-09 10:30:32,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2018-12-09 10:30:32,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 373. [2018-12-09 10:30:32,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2018-12-09 10:30:32,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 425 transitions. [2018-12-09 10:30:32,743 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 425 transitions. Word has length 98 [2018-12-09 10:30:32,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:30:32,744 INFO L480 AbstractCegarLoop]: Abstraction has 373 states and 425 transitions. [2018-12-09 10:30:32,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 10:30:32,744 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 425 transitions. [2018-12-09 10:30:32,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-12-09 10:30:32,745 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:30:32,745 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] [2018-12-09 10:30:32,746 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:30:32,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:30:32,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1513795794, now seen corresponding path program 1 times [2018-12-09 10:30:32,746 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:30:32,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:32,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:30:32,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:32,747 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:30:32,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:30:32,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 10:30:32,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:30:32,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 10:30:32,790 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:30:32,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 10:30:32,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 10:30:32,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 10:30:32,791 INFO L87 Difference]: Start difference. First operand 373 states and 425 transitions. Second operand 8 states. [2018-12-09 10:30:32,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:30:32,830 INFO L93 Difference]: Finished difference Result 736 states and 860 transitions. [2018-12-09 10:30:32,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 10:30:32,830 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2018-12-09 10:30:32,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:30:32,832 INFO L225 Difference]: With dead ends: 736 [2018-12-09 10:30:32,832 INFO L226 Difference]: Without dead ends: 387 [2018-12-09 10:30:32,833 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 [2018-12-09 10:30:32,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2018-12-09 10:30:32,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 381. [2018-12-09 10:30:32,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-12-09 10:30:32,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 433 transitions. [2018-12-09 10:30:32,849 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 433 transitions. Word has length 98 [2018-12-09 10:30:32,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:30:32,849 INFO L480 AbstractCegarLoop]: Abstraction has 381 states and 433 transitions. [2018-12-09 10:30:32,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 10:30:32,849 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 433 transitions. [2018-12-09 10:30:32,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-12-09 10:30:32,851 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:30:32,851 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] [2018-12-09 10:30:32,851 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:30:32,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:30:32,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1521555153, now seen corresponding path program 1 times [2018-12-09 10:30:32,851 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:30:32,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:32,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:30:32,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:32,852 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:30:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:30:32,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 10:30:32,891 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:30:32,891 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 10:30:32,891 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:30:32,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 10:30:32,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 10:30:32,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 10:30:32,892 INFO L87 Difference]: Start difference. First operand 381 states and 433 transitions. Second operand 4 states. [2018-12-09 10:30:33,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:30:33,017 INFO L93 Difference]: Finished difference Result 1123 states and 1346 transitions. [2018-12-09 10:30:33,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 10:30:33,017 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2018-12-09 10:30:33,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:30:33,021 INFO L225 Difference]: With dead ends: 1123 [2018-12-09 10:30:33,021 INFO L226 Difference]: Without dead ends: 766 [2018-12-09 10:30:33,022 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 [2018-12-09 10:30:33,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2018-12-09 10:30:33,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 751. [2018-12-09 10:30:33,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2018-12-09 10:30:33,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 881 transitions. [2018-12-09 10:30:33,059 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 881 transitions. Word has length 98 [2018-12-09 10:30:33,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:30:33,059 INFO L480 AbstractCegarLoop]: Abstraction has 751 states and 881 transitions. [2018-12-09 10:30:33,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 10:30:33,059 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 881 transitions. [2018-12-09 10:30:33,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-09 10:30:33,061 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:30:33,061 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] [2018-12-09 10:30:33,061 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:30:33,061 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:30:33,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1343532233, now seen corresponding path program 1 times [2018-12-09 10:30:33,062 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:30:33,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:33,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:30:33,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:33,062 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:30:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:30:33,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:30:33,152 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:30:33,152 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:30:33,152 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 103 with the following transitions: [2018-12-09 10:30:33,153 INFO L205 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] [2018-12-09 10:30:33,175 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:30:33,176 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:30:33,489 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 10:30:33,490 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. [2018-12-09 10:30:33,494 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:30:33,495 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 10:30:33,495 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:30:33,495 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9af759cd-89d1-4395-9b29-eecee481fbf8/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 10:30:33,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:30:33,513 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 10:30:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:30:33,594 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:30:33,703 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:30:33,704 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 10:30:34,208 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:30:34,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 10:30:34,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-09 10:30:34,234 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:30:34,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 10:30:34,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 10:30:34,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-09 10:30:34,235 INFO L87 Difference]: Start difference. First operand 751 states and 881 transitions. Second operand 8 states. [2018-12-09 10:30:34,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:30:34,427 INFO L93 Difference]: Finished difference Result 1450 states and 1712 transitions. [2018-12-09 10:30:34,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 10:30:34,428 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2018-12-09 10:30:34,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:30:34,430 INFO L225 Difference]: With dead ends: 1450 [2018-12-09 10:30:34,430 INFO L226 Difference]: Without dead ends: 723 [2018-12-09 10:30:34,431 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 [2018-12-09 10:30:34,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2018-12-09 10:30:34,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 723. [2018-12-09 10:30:34,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2018-12-09 10:30:34,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 835 transitions. [2018-12-09 10:30:34,453 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 835 transitions. Word has length 102 [2018-12-09 10:30:34,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:30:34,453 INFO L480 AbstractCegarLoop]: Abstraction has 723 states and 835 transitions. [2018-12-09 10:30:34,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 10:30:34,453 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 835 transitions. [2018-12-09 10:30:34,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-12-09 10:30:34,455 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:30:34,455 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, 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] [2018-12-09 10:30:34,455 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:30:34,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:30:34,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1673377843, now seen corresponding path program 1 times [2018-12-09 10:30:34,456 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:30:34,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:34,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:30:34,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:34,456 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:30:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:30:34,498 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-12-09 10:30:34,498 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:30:34,498 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:30:34,498 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2018-12-09 10:30:34,499 INFO L205 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], [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] [2018-12-09 10:30:34,501 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:30:34,501 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:30:34,967 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 10:30:34,967 INFO L272 AbstractInterpreter]: Visited 109 different actions 191 times. Merged at 8 different actions 13 times. Never widened. Performed 10670 root evaluator evaluations with a maximum evaluation depth of 3. Performed 10670 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 1 different actions. Largest state had 132 variables. [2018-12-09 10:30:34,969 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:30:34,969 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 10:30:34,969 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:30:34,970 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9af759cd-89d1-4395-9b29-eecee481fbf8/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 10:30:34,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:30:34,976 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 10:30:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:30:35,044 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:30:35,059 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 10:30:35,059 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 10:30:35,219 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-12-09 10:30:35,235 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 10:30:35,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 7 [2018-12-09 10:30:35,235 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:30:35,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 10:30:35,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 10:30:35,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:30:35,236 INFO L87 Difference]: Start difference. First operand 723 states and 835 transitions. Second operand 5 states. [2018-12-09 10:30:35,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:30:35,551 INFO L93 Difference]: Finished difference Result 1512 states and 1842 transitions. [2018-12-09 10:30:35,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 10:30:35,551 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2018-12-09 10:30:35,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:30:35,555 INFO L225 Difference]: With dead ends: 1512 [2018-12-09 10:30:35,555 INFO L226 Difference]: Without dead ends: 933 [2018-12-09 10:30:35,557 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 314 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-12-09 10:30:35,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2018-12-09 10:30:35,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 871. [2018-12-09 10:30:35,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 871 states. [2018-12-09 10:30:35,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1028 transitions. [2018-12-09 10:30:35,605 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1028 transitions. Word has length 157 [2018-12-09 10:30:35,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:30:35,605 INFO L480 AbstractCegarLoop]: Abstraction has 871 states and 1028 transitions. [2018-12-09 10:30:35,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 10:30:35,605 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1028 transitions. [2018-12-09 10:30:35,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-12-09 10:30:35,607 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:30:35,608 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] [2018-12-09 10:30:35,608 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:30:35,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:30:35,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1604124685, now seen corresponding path program 1 times [2018-12-09 10:30:35,608 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:30:35,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:35,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:30:35,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:30:35,609 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:30:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:30:35,703 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-09 10:30:35,703 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:30:35,703 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:30:35,703 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 154 with the following transitions: [2018-12-09 10:30:35,703 INFO L205 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] [2018-12-09 10:30:35,706 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:30:35,706 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:30:36,993 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 10:30:36,993 INFO L272 AbstractInterpreter]: Visited 123 different actions 852 times. Merged at 17 different actions 67 times. Never widened. Performed 36070 root evaluator evaluations with a maximum evaluation depth of 3. Performed 36070 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 17 fixpoints after 6 different actions. Largest state had 132 variables. [2018-12-09 10:30:36,995 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:30:36,995 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 10:30:36,995 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:30:36,995 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9af759cd-89d1-4395-9b29-eecee481fbf8/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 10:30:37,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:30:37,001 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 10:30:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:30:37,064 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:30:37,154 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-09 10:30:37,154 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 10:30:37,398 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-09 10:30:37,412 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 10:30:37,413 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-09 10:30:37,413 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:30:37,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 10:30:37,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 10:30:37,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-09 10:30:37,413 INFO L87 Difference]: Start difference. First operand 871 states and 1028 transitions. Second operand 8 states. [2018-12-09 10:30:37,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:30:37,539 INFO L93 Difference]: Finished difference Result 1509 states and 1807 transitions. [2018-12-09 10:30:37,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 10:30:37,540 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2018-12-09 10:30:37,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:30:37,540 INFO L225 Difference]: With dead ends: 1509 [2018-12-09 10:30:37,541 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 10:30:37,543 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 [2018-12-09 10:30:37,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 10:30:37,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 10:30:37,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 10:30:37,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 10:30:37,544 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 153 [2018-12-09 10:30:37,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:30:37,544 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 10:30:37,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 10:30:37,544 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 10:30:37,544 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 10:30:37,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 10:30:37,648 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,650 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,706 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,707 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,708 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,708 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,708 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,709 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,710 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,710 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,738 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,738 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,739 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,739 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,739 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,740 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,740 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,741 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,742 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,759 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,760 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,760 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,761 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,761 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,762 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,763 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,763 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:37,764 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:30:38,732 WARN L180 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2018-12-09 10:30:39,468 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 33 [2018-12-09 10:30:39,470 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 297 303) the Hoare annotation is: true [2018-12-09 10:30:39,470 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 297 303) no Hoare annotation was computed. [2018-12-09 10:30:39,470 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 304 312) no Hoare annotation was computed. [2018-12-09 10:30:39,470 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 304 312) the Hoare annotation is: true [2018-12-09 10:30:39,470 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 304 312) no Hoare annotation was computed. [2018-12-09 10:30:39,470 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))) [2018-12-09 10:30:39,471 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 255 277) no Hoare annotation was computed. [2018-12-09 10:30:39,471 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 255 277) no Hoare annotation was computed. [2018-12-09 10:30:39,471 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))) [2018-12-09 10:30:39,471 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))) [2018-12-09 10:30:39,471 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 272) no Hoare annotation was computed. [2018-12-09 10:30:39,471 INFO L448 ceAbstractionStarter]: For program point L265-1(lines 265 272) no Hoare annotation was computed. [2018-12-09 10:30:39,471 INFO L448 ceAbstractionStarter]: For program point L263(line 263) no Hoare annotation was computed. [2018-12-09 10:30:39,471 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))) [2018-12-09 10:30:39,471 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))) [2018-12-09 10:30:39,471 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))) [2018-12-09 10:30:39,471 INFO L444 ceAbstractionStarter]: At program point L801(line 801) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1) (or (< ~methaneLevelCritical~0 1) .cse2 .cse0) (or .cse2 .cse0 .cse1))) [2018-12-09 10:30:39,472 INFO L448 ceAbstractionStarter]: For program point L801-1(lines 782 806) no Hoare annotation was computed. [2018-12-09 10:30:39,472 INFO L444 ceAbstractionStarter]: At program point L796(line 796) the Hoare annotation is: (let ((.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse3 (and (= 0 processEnvironment__wrappee__methaneQuery_~tmp~6) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 (< ~methaneLevelCritical~0 1) (not .cse2) .cse0) (or .cse3 .cse0 .cse1))) [2018-12-09 10:30:39,472 INFO L444 ceAbstractionStarter]: At program point L792(line 792) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (and .cse0 .cse1) (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse2) (or (and .cse0 (= 0 ~pumpRunning~0) .cse1) .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 10:30:39,472 INFO L448 ceAbstractionStarter]: For program point L790(lines 790 798) no Hoare annotation was computed. [2018-12-09 10:30:39,472 INFO L444 ceAbstractionStarter]: At program point L788(line 788) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or (< ~methaneLevelCritical~0 1) (not .cse2) .cse3 .cse0))) [2018-12-09 10:30:39,472 INFO L448 ceAbstractionStarter]: For program point L788-1(line 788) no Hoare annotation was computed. [2018-12-09 10:30:39,472 INFO L448 ceAbstractionStarter]: For program point L786(lines 786 803) no Hoare annotation was computed. [2018-12-09 10:30:39,472 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 782 806) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-12-09 10:30:39,472 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 782 806) no Hoare annotation was computed. [2018-12-09 10:30:39,472 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 877 885) no Hoare annotation was computed. [2018-12-09 10:30:39,472 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 877 885) the Hoare annotation is: true [2018-12-09 10:30:39,472 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 877 885) no Hoare annotation was computed. [2018-12-09 10:30:39,472 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 290 296) no Hoare annotation was computed. [2018-12-09 10:30:39,473 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 290 296) the Hoare annotation is: true [2018-12-09 10:30:39,473 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))) [2018-12-09 10:30:39,473 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 242 251) no Hoare annotation was computed. [2018-12-09 10:30:39,473 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 242 251) no Hoare annotation was computed. [2018-12-09 10:30:39,473 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 866 876) the Hoare annotation is: true [2018-12-09 10:30:39,473 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 866 876) no Hoare annotation was computed. [2018-12-09 10:30:39,473 INFO L451 ceAbstractionStarter]: At program point L871(line 871) the Hoare annotation is: true [2018-12-09 10:30:39,473 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 866 876) no Hoare annotation was computed. [2018-12-09 10:30:39,473 INFO L448 ceAbstractionStarter]: For program point L871-1(line 871) no Hoare annotation was computed. [2018-12-09 10:30:39,473 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 858 865) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2018-12-09 10:30:39,473 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 858 865) no Hoare annotation was computed. [2018-12-09 10:30:39,473 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 858 865) no Hoare annotation was computed. [2018-12-09 10:30:39,473 INFO L444 ceAbstractionStarter]: At program point L827(line 827) the Hoare annotation is: (let ((.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse1 .cse3 .cse2) (or .cse4 .cse1 .cse3) (or .cse0 .cse4 .cse1))) [2018-12-09 10:30:39,473 INFO L448 ceAbstractionStarter]: For program point L827-1(lines 808 832) no Hoare annotation was computed. [2018-12-09 10:30:39,474 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 808 832) no Hoare annotation was computed. [2018-12-09 10:30:39,474 INFO L444 ceAbstractionStarter]: At program point L822(line 822) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (< ~methaneLevelCritical~0 1) .cse0))) [2018-12-09 10:30:39,474 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 808 832) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1))) [2018-12-09 10:30:39,474 INFO L444 ceAbstractionStarter]: At program point L818(line 818) the Hoare annotation is: (let ((.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse1) (or .cse4 .cse1 .cse2) (or .cse3 .cse1 (and (<= ~methaneLevelCritical~0 processEnvironment_~tmp~7) .cse0)))) [2018-12-09 10:30:39,474 INFO L448 ceAbstractionStarter]: For program point L816(lines 816 824) no Hoare annotation was computed. [2018-12-09 10:30:39,474 INFO L444 ceAbstractionStarter]: At program point L814(line 814) the Hoare annotation is: (let ((.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse1) (or .cse4 .cse1 .cse2) (or .cse3 .cse0 .cse1))) [2018-12-09 10:30:39,474 INFO L448 ceAbstractionStarter]: For program point L814-1(line 814) no Hoare annotation was computed. [2018-12-09 10:30:39,474 INFO L448 ceAbstractionStarter]: For program point L812(lines 812 829) no Hoare annotation was computed. [2018-12-09 10:30:39,474 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 126 139) no Hoare annotation was computed. [2018-12-09 10:30:39,474 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 126 139) the Hoare annotation is: true [2018-12-09 10:30:39,474 INFO L448 ceAbstractionStarter]: For program point L130(lines 130 136) no Hoare annotation was computed. [2018-12-09 10:30:39,474 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 126 139) no Hoare annotation was computed. [2018-12-09 10:30:39,474 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 774 780) no Hoare annotation was computed. [2018-12-09 10:30:39,475 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 774 780) the Hoare annotation is: true [2018-12-09 10:30:39,475 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))) [2018-12-09 10:30:39,475 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 (= 0 ~methaneLevelCritical~0) .cse0) (not (= ~systemActive~0 1)) (and (and (= 0 ~pumpRunning~0) .cse0) (<= 1 ~methaneLevelCritical~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-09 10:30:39,475 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))) [2018-12-09 10:30:39,475 INFO L448 ceAbstractionStarter]: For program point L700(lines 700 706) no Hoare annotation was computed. [2018-12-09 10:30:39,475 INFO L448 ceAbstractionStarter]: For program point L700-1(lines 700 706) no Hoare annotation was computed. [2018-12-09 10:30:39,475 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 680 743) no Hoare annotation was computed. [2018-12-09 10:30:39,475 INFO L448 ceAbstractionStarter]: For program point L692(lines 692 696) no Hoare annotation was computed. [2018-12-09 10:30:39,475 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))) [2018-12-09 10:30:39,475 INFO L448 ceAbstractionStarter]: For program point L726(lines 726 730) no Hoare annotation was computed. [2018-12-09 10:30:39,475 INFO L444 ceAbstractionStarter]: At program point L726-2(lines 720 731) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~methaneLevelCritical~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0))) [2018-12-09 10:30:39,475 INFO L448 ceAbstractionStarter]: For program point L691(lines 690 735) no Hoare annotation was computed. [2018-12-09 10:30:39,475 INFO L448 ceAbstractionStarter]: For program point L720(lines 720 731) no Hoare annotation was computed. [2018-12-09 10:30:39,476 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))) [2018-12-09 10:30:39,476 INFO L448 ceAbstractionStarter]: For program point L710(lines 710 716) no Hoare annotation was computed. [2018-12-09 10:30:39,476 INFO L448 ceAbstractionStarter]: For program point L710-1(lines 710 716) no Hoare annotation was computed. [2018-12-09 10:30:39,476 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 680 743) no Hoare annotation was computed. [2018-12-09 10:30:39,476 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__highWaterSensorENTRY(lines 833 840) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) [2018-12-09 10:30:39,476 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorEXIT(lines 833 840) no Hoare annotation was computed. [2018-12-09 10:30:39,476 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorFINAL(lines 833 840) no Hoare annotation was computed. [2018-12-09 10:30:39,476 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 10:30:39,476 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-09 10:30:39,476 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 10:30:39,476 INFO L448 ceAbstractionStarter]: For program point L848(lines 848 854) no Hoare annotation was computed. [2018-12-09 10:30:39,476 INFO L444 ceAbstractionStarter]: At program point L846(line 846) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 2)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or .cse1 (< ~methaneLevelCritical~0 1) .cse0 .cse2 .cse3))) [2018-12-09 10:30:39,476 INFO L448 ceAbstractionStarter]: For program point L846-1(line 846) no Hoare annotation was computed. [2018-12-09 10:30:39,476 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 841 857) no Hoare annotation was computed. [2018-12-09 10:30:39,477 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 841 857) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 2)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or .cse1 (< ~methaneLevelCritical~0 1) .cse0 .cse2 .cse3))) [2018-12-09 10:30:39,477 INFO L444 ceAbstractionStarter]: At program point L852(line 852) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2018-12-09 10:30:39,477 INFO L448 ceAbstractionStarter]: For program point L852-1(lines 841 857) no Hoare annotation was computed. [2018-12-09 10:30:39,477 INFO L451 ceAbstractionStarter]: At program point L929(line 929) the Hoare annotation is: true [2018-12-09 10:30:39,477 INFO L448 ceAbstractionStarter]: For program point L931-2(lines 931 935) no Hoare annotation was computed. [2018-12-09 10:30:39,477 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 922 940) no Hoare annotation was computed. [2018-12-09 10:30:39,477 INFO L448 ceAbstractionStarter]: For program point L929-1(line 929) no Hoare annotation was computed. [2018-12-09 10:30:39,477 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 922 940) the Hoare annotation is: true [2018-12-09 10:30:39,477 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 922 940) no Hoare annotation was computed. [2018-12-09 10:30:39,477 INFO L448 ceAbstractionStarter]: For program point L931(lines 931 935) no Hoare annotation was computed. [2018-12-09 10:30:39,477 INFO L448 ceAbstractionStarter]: For program point L77-1(lines 73 84) no Hoare annotation was computed. [2018-12-09 10:30:39,477 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 73 84) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= |old(~methaneLevelCritical~0)| 0)) (= 0 ~methaneLevelCritical~0)) (or (< |old(~methaneLevelCritical~0)| 1) (not (= 0 ~pumpRunning~0)) (<= 1 ~methaneLevelCritical~0) .cse0))) [2018-12-09 10:30:39,477 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 73 84) no Hoare annotation was computed. [2018-12-09 10:30:39,478 INFO L444 ceAbstractionStarter]: At program point L763(line 763) the Hoare annotation is: (let ((.cse6 (= |old(~waterLevel~0)| 1)) (.cse8 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse5 (and .cse8 (<= 1 ~methaneLevelCritical~0) .cse0)) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse10 (not .cse6)) (.cse9 (= 1 ~waterLevel~0)) (.cse7 (not (= ~waterLevel~0 1))) (.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 (and .cse4 .cse0) .cse5 .cse1) (or .cse3 .cse6 .cse7 .cse5 .cse1) (or .cse8 .cse9 .cse1 .cse10 .cse2) (or .cse3 .cse8 .cse1 .cse10 .cse9) (or .cse6 (and .cse7 .cse4) .cse8 .cse1 .cse2)))) [2018-12-09 10:30:39,478 INFO L444 ceAbstractionStarter]: At program point L761(lines 761 767) the Hoare annotation is: (let ((.cse9 (= |old(~waterLevel~0)| 1))) (let ((.cse5 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= 1 ~waterLevel~0)) (.cse4 (not .cse9)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse7 (= 0 ~pumpRunning~0)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse10 (not (= ~waterLevel~0 1))) (.cse8 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (let ((.cse6 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or (and .cse5 .cse6) (and (<= 2 ~waterLevel~0) .cse5) (and .cse1 .cse7) .cse3 (and .cse1 .cse6) .cse8)) (or .cse0 .cse9 .cse1 (and .cse10 .cse5) .cse3) (or .cse1 .cse3 .cse2 .cse4 .cse8) (or .cse0 .cse7 .cse3) (or .cse9 .cse1 .cse3 .cse10 .cse8)))) [2018-12-09 10:30:39,478 INFO L444 ceAbstractionStarter]: At program point L756(line 756) the Hoare annotation is: (let ((.cse0 (and (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1))) [2018-12-09 10:30:39,478 INFO L448 ceAbstractionStarter]: For program point L754(lines 753 772) no Hoare annotation was computed. [2018-12-09 10:30:39,478 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 750 773) the Hoare annotation is: (let ((.cse3 (= |old(~waterLevel~0)| 1))) (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse7 (not .cse3)) (.cse6 (= 1 ~waterLevel~0)) (.cse4 (not (= ~waterLevel~0 1))) (.cse2 (not (= ~systemActive~0 1))) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse1 (and (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse4 .cse2) (or .cse5 .cse6 .cse2 .cse7 .cse8) (or .cse0 .cse5 .cse2 .cse7 .cse6) (or .cse3 .cse2 .cse4 .cse8) (or .cse2 .cse8 .cse1)))) [2018-12-09 10:30:39,478 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 750 773) no Hoare annotation was computed. [2018-12-09 10:30:39,478 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 750 773) no Hoare annotation was computed. [2018-12-09 10:30:39,478 INFO L448 ceAbstractionStarter]: For program point L193(lines 193 197) no Hoare annotation was computed. [2018-12-09 10:30:39,478 INFO L451 ceAbstractionStarter]: At program point L193-1(lines 193 197) the Hoare annotation is: true [2018-12-09 10:30:39,478 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 179 208) no Hoare annotation was computed. [2018-12-09 10:30:39,478 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-12-09 10:30:39,478 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 179 208) the Hoare annotation is: true [2018-12-09 10:30:39,479 INFO L451 ceAbstractionStarter]: At program point L189-2(lines 189 203) the Hoare annotation is: true [2018-12-09 10:30:39,479 INFO L451 ceAbstractionStarter]: At program point L185(line 185) the Hoare annotation is: true [2018-12-09 10:30:39,479 INFO L448 ceAbstractionStarter]: For program point L185-1(line 185) no Hoare annotation was computed. [2018-12-09 10:30:39,479 INFO L451 ceAbstractionStarter]: At program point L204(lines 179 208) the Hoare annotation is: true [2018-12-09 10:30:39,479 INFO L448 ceAbstractionStarter]: For program point L200(line 200) no Hoare annotation was computed. [2018-12-09 10:30:39,479 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 85 93) the Hoare annotation is: true [2018-12-09 10:30:39,479 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 85 93) no Hoare annotation was computed. [2018-12-09 10:30:39,479 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 85 93) no Hoare annotation was computed. [2018-12-09 10:30:39,479 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 49 60) the Hoare annotation is: (let ((.cse0 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= 0 ~pumpRunning~0))) (and (or .cse0 (or .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2)) (or (< ~methaneLevelCritical~0 1) .cse0 (or .cse1 .cse2)))) [2018-12-09 10:30:39,479 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 49 60) no Hoare annotation was computed. [2018-12-09 10:30:39,479 INFO L448 ceAbstractionStarter]: For program point L53-1(lines 49 60) no Hoare annotation was computed. [2018-12-09 10:30:39,479 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 234 240) no Hoare annotation was computed. [2018-12-09 10:30:39,479 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 234 240) the Hoare annotation is: true [2018-12-09 10:30:39,479 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 10:30:39,479 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)) [2018-12-09 10:30:39,479 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 10:30:39,480 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 10:30:39,480 INFO L448 ceAbstractionStarter]: For program point L65-1(lines 61 72) no Hoare annotation was computed. [2018-12-09 10:30:39,480 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 61 72) no Hoare annotation was computed. [2018-12-09 10:30:39,480 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 61 72) the Hoare annotation is: (let ((.cse3 (not (= |old(~waterLevel~0)| 1))) (.cse1 (= 1 ~waterLevel~0)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (< ~methaneLevelCritical~0 1)) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1))) (.cse6 (<= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse2 .cse3 .cse1) (or (or .cse2 .cse4) .cse6) (or .cse5 (or .cse0 .cse2) .cse6))) [2018-12-09 10:30:39,480 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 141 148) no Hoare annotation was computed. [2018-12-09 10:30:39,480 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2018-12-09 10:30:39,480 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 141 148) the Hoare annotation is: true [2018-12-09 10:30:39,480 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 141 148) no Hoare annotation was computed. [2018-12-09 10:30:39,480 INFO L444 ceAbstractionStarter]: At program point L161(line 161) the Hoare annotation is: (or (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) [2018-12-09 10:30:39,480 INFO L448 ceAbstractionStarter]: For program point L161-1(line 161) no Hoare annotation was computed. [2018-12-09 10:30:39,480 INFO L448 ceAbstractionStarter]: For program point L159(lines 159 172) no Hoare annotation was computed. [2018-12-09 10:30:39,480 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 151 175) no Hoare annotation was computed. [2018-12-09 10:30:39,480 INFO L451 ceAbstractionStarter]: At program point L157(line 157) the Hoare annotation is: true [2018-12-09 10:30:39,481 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 151 175) the Hoare annotation is: true [2018-12-09 10:30:39,481 INFO L448 ceAbstractionStarter]: For program point L157-1(line 157) no Hoare annotation was computed. [2018-12-09 10:30:39,481 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification1_spec__1EXIT(lines 151 175) no Hoare annotation was computed. [2018-12-09 10:30:39,481 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))))) [2018-12-09 10:30:39,481 INFO L448 ceAbstractionStarter]: For program point L163(lines 163 169) no Hoare annotation was computed. [2018-12-09 10:30:39,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:30:39 BoogieIcfgContainer [2018-12-09 10:30:39,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 10:30:39,489 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 10:30:39,489 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 10:30:39,489 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 10:30:39,489 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:30:30" (3/4) ... [2018-12-09 10:30:39,492 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 10:30:39,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-09 10:30:39,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-09 10:30:39,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 10:30:39,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-12-09 10:30:39,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-09 10:30:39,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-09 10:30:39,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-09 10:30:39,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-09 10:30:39,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-09 10:30:39,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-09 10:30:39,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-09 10:30:39,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-09 10:30:39,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-09 10:30:39,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__highWaterSensor [2018-12-09 10:30:39,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 10:30:39,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-09 10:30:39,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-09 10:30:39,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-09 10:30:39,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-09 10:30:39,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-09 10:30:39,497 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-09 10:30:39,497 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-09 10:30:39,497 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-09 10:30:39,497 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-09 10:30:39,497 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-09 10:30:39,497 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification1_spec__1 [2018-12-09 10:30:39,501 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2018-12-09 10:30:39,501 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-12-09 10:30:39,502 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-12-09 10:30:39,502 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-09 10:30:39,502 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 10:30:39,502 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 10:30:39,518 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) [2018-12-09 10:30:39,518 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-09 10:30:39,541 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9af759cd-89d1-4395-9b29-eecee481fbf8/bin-2019/utaipan/witness.graphml [2018-12-09 10:30:39,541 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 10:30:39,542 INFO L168 Benchmark]: Toolchain (without parser) took 9237.74 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 598.7 MB). Free memory was 947.0 MB in the beginning and 775.7 MB in the end (delta: 171.3 MB). Peak memory consumption was 770.1 MB. Max. memory is 11.5 GB. [2018-12-09 10:30:39,542 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:30:39,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-09 10:30:39,542 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:30:39,542 INFO L168 Benchmark]: Boogie Preprocessor took 21.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:30:39,543 INFO L168 Benchmark]: RCFGBuilder took 327.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 55.6 MB). Peak memory consumption was 55.6 MB. Max. memory is 11.5 GB. [2018-12-09 10:30:39,543 INFO L168 Benchmark]: TraceAbstraction took 8545.19 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 463.5 MB). Free memory was 1.1 GB in the beginning and 787.5 MB in the end (delta: 276.4 MB). Peak memory consumption was 739.9 MB. Max. memory is 11.5 GB. [2018-12-09 10:30:39,543 INFO L168 Benchmark]: Witness Printer took 52.30 ms. Allocated memory is still 1.6 GB. Free memory was 787.5 MB in the beginning and 775.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-09 10:30:39,544 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 268.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.65 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 21.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 327.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 55.6 MB). Peak memory consumption was 55.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8545.19 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 463.5 MB). Free memory was 1.1 GB in the beginning and 787.5 MB in the end (delta: 276.4 MB). Peak memory consumption was 739.9 MB. Max. memory is 11.5 GB. * Witness Printer took 52.30 ms. Allocated memory is still 1.6 GB. Free memory was 787.5 MB in the beginning and 775.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 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, 8.5s OverallTime, 12 OverallIterations, 4 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 1.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 2063 SDtfs, 1167 SDslu, 4522 SDs, 0 SdLazy, 1787 SolverSat, 395 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 949 GetRequests, 834 SyntacticMatches, 15 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=871occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.1s AbstIntTime, 3 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 141 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 60 LocationsWithAnnotation, 1881 PreInvPairs, 2007 NumberOfFragments, 1576 HoareAnnotationTreeSize, 1881 FomulaSimplifications, 4324 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 60 FomulaSimplificationsInter, 10403 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 1486 NumberOfCodeBlocks, 1486 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1880 ConstructedInterpolants, 0 QuantifiedInterpolants, 343445 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2455 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 18 InterpolantComputations, 12 PerfectInterpolantSequences, 302/318 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...