./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product62_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_ae7593d8-2607-4011-92c9-8079469f3034/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ae7593d8-2607-4011-92c9-8079469f3034/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ae7593d8-2607-4011-92c9-8079469f3034/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ae7593d8-2607-4011-92c9-8079469f3034/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product62_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ae7593d8-2607-4011-92c9-8079469f3034/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ae7593d8-2607-4011-92c9-8079469f3034/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 ce17648ffa5822f201dca35a60378555aafbd885 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:45:09,655 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:45:09,656 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:45:09,662 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:45:09,662 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:45:09,663 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:45:09,663 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:45:09,664 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:45:09,665 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:45:09,666 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:45:09,666 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:45:09,666 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:45:09,667 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:45:09,667 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:45:09,668 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:45:09,668 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:45:09,669 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:45:09,670 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:45:09,671 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:45:09,671 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:45:09,672 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:45:09,672 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:45:09,674 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:45:09,674 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:45:09,674 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:45:09,674 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:45:09,675 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:45:09,675 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:45:09,676 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:45:09,676 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:45:09,677 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:45:09,677 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:45:09,677 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:45:09,677 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:45:09,678 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:45:09,678 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:45:09,678 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ae7593d8-2607-4011-92c9-8079469f3034/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:45:09,686 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:45:09,686 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:45:09,686 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:45:09,687 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:45:09,687 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:45:09,687 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:45:09,687 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:45:09,687 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:45:09,687 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:45:09,687 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:45:09,688 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:45:09,688 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:45:09,688 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:45:09,688 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:45:09,688 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:45:09,689 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:45:09,689 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:45:09,689 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:45:09,689 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:45:09,689 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:45:09,689 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:45:09,689 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:45:09,689 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:45:09,690 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:45:09,690 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:45:09,690 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:45:09,690 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:45:09,690 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:45:09,690 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:45:09,690 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:45:09,690 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:45:09,691 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:45:09,691 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:45:09,691 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:45:09,691 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:45:09,691 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:45:09,691 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_ae7593d8-2607-4011-92c9-8079469f3034/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 -> ce17648ffa5822f201dca35a60378555aafbd885 [2018-12-09 19:45:09,710 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:45:09,719 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:45:09,721 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:45:09,723 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:45:09,723 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:45:09,723 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ae7593d8-2607-4011-92c9-8079469f3034/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product62_true-unreach-call_false-termination.cil.c [2018-12-09 19:45:09,761 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ae7593d8-2607-4011-92c9-8079469f3034/bin-2019/utaipan/data/323b147ba/72b45316d5b0432c84535eae84267d57/FLAG1085b0e6a [2018-12-09 19:45:10,221 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:45:10,222 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ae7593d8-2607-4011-92c9-8079469f3034/sv-benchmarks/c/product-lines/minepump_spec4_product62_true-unreach-call_false-termination.cil.c [2018-12-09 19:45:10,227 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ae7593d8-2607-4011-92c9-8079469f3034/bin-2019/utaipan/data/323b147ba/72b45316d5b0432c84535eae84267d57/FLAG1085b0e6a [2018-12-09 19:45:10,235 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ae7593d8-2607-4011-92c9-8079469f3034/bin-2019/utaipan/data/323b147ba/72b45316d5b0432c84535eae84267d57 [2018-12-09 19:45:10,237 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:45:10,238 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:45:10,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:45:10,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:45:10,240 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:45:10,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:45:10" (1/1) ... [2018-12-09 19:45:10,242 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 07:45:10, skipping insertion in model container [2018-12-09 19:45:10,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:45:10" (1/1) ... [2018-12-09 19:45:10,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:45:10,267 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:45:10,415 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:45:10,455 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:45:10,504 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:45:10,520 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:45:10,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:45:10 WrapperNode [2018-12-09 19:45:10,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:45:10,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:45:10,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:45:10,521 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:45:10,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:45:10" (1/1) ... [2018-12-09 19:45:10,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:45:10" (1/1) ... [2018-12-09 19:45:10,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:45:10,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:45:10,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:45:10,541 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:45:10,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:45:10" (1/1) ... [2018-12-09 19:45:10,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:45:10" (1/1) ... [2018-12-09 19:45:10,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:45:10" (1/1) ... [2018-12-09 19:45:10,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:45:10" (1/1) ... [2018-12-09 19:45:10,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:45:10" (1/1) ... [2018-12-09 19:45:10,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:45:10" (1/1) ... [2018-12-09 19:45:10,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:45:10" (1/1) ... [2018-12-09 19:45:10,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:45:10,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:45:10,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:45:10,565 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:45:10,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:45:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae7593d8-2607-4011-92c9-8079469f3034/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 19:45:10,600 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 19:45:10,600 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 19:45:10,600 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-09 19:45:10,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-09 19:45:10,600 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:45:10,600 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:45:10,600 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-09 19:45:10,600 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-09 19:45:10,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:45:10,601 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 19:45:10,601 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 19:45:10,601 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 19:45:10,601 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 19:45:10,601 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 19:45:10,601 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 19:45:10,601 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 19:45:10,601 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 19:45:10,601 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 19:45:10,601 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 19:45:10,601 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-12-09 19:45:10,601 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-12-09 19:45:10,601 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-09 19:45:10,601 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-09 19:45:10,601 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 19:45:10,602 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 19:45:10,602 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-09 19:45:10,602 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-09 19:45:10,602 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 19:45:10,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 19:45:10,602 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 19:45:10,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 19:45:10,602 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 19:45:10,602 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 19:45:10,602 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 19:45:10,602 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 19:45:10,602 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 19:45:10,602 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 19:45:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 19:45:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 19:45:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-09 19:45:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-09 19:45:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 19:45:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 19:45:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 19:45:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 19:45:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 19:45:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 19:45:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-12-09 19:45:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-12-09 19:45:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 19:45:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 19:45:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 19:45:10,604 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 19:45:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 19:45:10,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 19:45:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 19:45:10,604 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 19:45:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 19:45:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:45:10,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:45:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 19:45:10,604 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 19:45:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 19:45:10,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 19:45:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:45:10,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:45:10,903 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:45:10,904 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 19:45:10,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:45:10 BoogieIcfgContainer [2018-12-09 19:45:10,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:45:10,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:45:10,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:45:10,906 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:45:10,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:45:10" (1/3) ... [2018-12-09 19:45:10,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79162b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:45:10, skipping insertion in model container [2018-12-09 19:45:10,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:45:10" (2/3) ... [2018-12-09 19:45:10,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79162b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:45:10, skipping insertion in model container [2018-12-09 19:45:10,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:45:10" (3/3) ... [2018-12-09 19:45:10,908 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product62_true-unreach-call_false-termination.cil.c [2018-12-09 19:45:10,914 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:45:10,920 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:45:10,929 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:45:10,948 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:45:10,948 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:45:10,948 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:45:10,948 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:45:10,948 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:45:10,948 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:45:10,949 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:45:10,949 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:45:10,961 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2018-12-09 19:45:10,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 19:45:10,966 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:45:10,966 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 19:45:10,968 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:45:10,971 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:45:10,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1707468692, now seen corresponding path program 1 times [2018-12-09 19:45:10,973 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:45:11,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:11,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:45:11,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:11,002 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:45:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:45:11,109 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 19:45:11,111 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:45:11,111 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:45:11,111 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:45:11,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 19:45:11,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 19:45:11,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:45:11,128 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 2 states. [2018-12-09 19:45:11,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:45:11,157 INFO L93 Difference]: Finished difference Result 314 states and 387 transitions. [2018-12-09 19:45:11,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 19:45:11,158 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 19:45:11,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:45:11,165 INFO L225 Difference]: With dead ends: 314 [2018-12-09 19:45:11,165 INFO L226 Difference]: Without dead ends: 157 [2018-12-09 19:45:11,167 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 19:45:11,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-12-09 19:45:11,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2018-12-09 19:45:11,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-12-09 19:45:11,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 185 transitions. [2018-12-09 19:45:11,199 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 185 transitions. Word has length 46 [2018-12-09 19:45:11,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:45:11,199 INFO L480 AbstractCegarLoop]: Abstraction has 157 states and 185 transitions. [2018-12-09 19:45:11,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 19:45:11,199 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 185 transitions. [2018-12-09 19:45:11,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 19:45:11,201 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:45:11,201 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 19:45:11,201 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:45:11,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:45:11,202 INFO L82 PathProgramCache]: Analyzing trace with hash -714026924, now seen corresponding path program 1 times [2018-12-09 19:45:11,202 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:45:11,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:11,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:45:11,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:11,203 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:45:11,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:45:11,270 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 19:45:11,270 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:45:11,270 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 19:45:11,270 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:45:11,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:45:11,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:45:11,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:45:11,272 INFO L87 Difference]: Start difference. First operand 157 states and 185 transitions. Second operand 3 states. [2018-12-09 19:45:11,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:45:11,293 INFO L93 Difference]: Finished difference Result 259 states and 305 transitions. [2018-12-09 19:45:11,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:45:11,294 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 19:45:11,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:45:11,295 INFO L225 Difference]: With dead ends: 259 [2018-12-09 19:45:11,295 INFO L226 Difference]: Without dead ends: 148 [2018-12-09 19:45:11,296 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 19:45:11,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-12-09 19:45:11,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-12-09 19:45:11,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-12-09 19:45:11,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 173 transitions. [2018-12-09 19:45:11,305 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 173 transitions. Word has length 47 [2018-12-09 19:45:11,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:45:11,305 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 173 transitions. [2018-12-09 19:45:11,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:45:11,305 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 173 transitions. [2018-12-09 19:45:11,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 19:45:11,306 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:45:11,306 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] [2018-12-09 19:45:11,306 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:45:11,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:45:11,307 INFO L82 PathProgramCache]: Analyzing trace with hash -418770940, now seen corresponding path program 1 times [2018-12-09 19:45:11,307 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:45:11,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:11,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:45:11,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:11,308 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:45:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:45:11,379 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 19:45:11,379 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:45:11,379 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 19:45:11,380 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:45:11,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:45:11,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:45:11,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:45:11,381 INFO L87 Difference]: Start difference. First operand 148 states and 173 transitions. Second operand 3 states. [2018-12-09 19:45:11,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:45:11,397 INFO L93 Difference]: Finished difference Result 272 states and 323 transitions. [2018-12-09 19:45:11,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:45:11,397 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-12-09 19:45:11,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:45:11,398 INFO L225 Difference]: With dead ends: 272 [2018-12-09 19:45:11,398 INFO L226 Difference]: Without dead ends: 148 [2018-12-09 19:45:11,399 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 19:45:11,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-12-09 19:45:11,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-12-09 19:45:11,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-12-09 19:45:11,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 172 transitions. [2018-12-09 19:45:11,411 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 172 transitions. Word has length 52 [2018-12-09 19:45:11,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:45:11,411 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 172 transitions. [2018-12-09 19:45:11,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:45:11,411 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 172 transitions. [2018-12-09 19:45:11,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-12-09 19:45:11,412 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:45:11,413 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] [2018-12-09 19:45:11,413 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:45:11,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:45:11,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1599970304, now seen corresponding path program 1 times [2018-12-09 19:45:11,413 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:45:11,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:11,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:45:11,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:11,414 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:45:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:45:11,502 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 19:45:11,502 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:45:11,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 19:45:11,502 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:45:11,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 19:45:11,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 19:45:11,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 19:45:11,504 INFO L87 Difference]: Start difference. First operand 148 states and 172 transitions. Second operand 5 states. [2018-12-09 19:45:11,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:45:11,876 INFO L93 Difference]: Finished difference Result 389 states and 466 transitions. [2018-12-09 19:45:11,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 19:45:11,876 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2018-12-09 19:45:11,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:45:11,878 INFO L225 Difference]: With dead ends: 389 [2018-12-09 19:45:11,878 INFO L226 Difference]: Without dead ends: 265 [2018-12-09 19:45:11,879 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 19:45:11,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-12-09 19:45:11,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 246. [2018-12-09 19:45:11,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-12-09 19:45:11,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 276 transitions. [2018-12-09 19:45:11,902 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 276 transitions. Word has length 70 [2018-12-09 19:45:11,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:45:11,903 INFO L480 AbstractCegarLoop]: Abstraction has 246 states and 276 transitions. [2018-12-09 19:45:11,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 19:45:11,903 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 276 transitions. [2018-12-09 19:45:11,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-09 19:45:11,904 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:45:11,904 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:45:11,904 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:45:11,905 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:45:11,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1641427357, now seen corresponding path program 1 times [2018-12-09 19:45:11,905 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:45:11,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:11,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:45:11,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:11,906 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:45:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:45:11,978 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 19:45:11,978 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:45:11,978 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 19:45:11,979 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:45:11,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 19:45:11,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 19:45:11,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 19:45:11,980 INFO L87 Difference]: Start difference. First operand 246 states and 276 transitions. Second operand 10 states. [2018-12-09 19:45:12,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:45:12,329 INFO L93 Difference]: Finished difference Result 803 states and 971 transitions. [2018-12-09 19:45:12,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 19:45:12,329 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2018-12-09 19:45:12,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:45:12,333 INFO L225 Difference]: With dead ends: 803 [2018-12-09 19:45:12,333 INFO L226 Difference]: Without dead ends: 581 [2018-12-09 19:45:12,334 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-09 19:45:12,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2018-12-09 19:45:12,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 571. [2018-12-09 19:45:12,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2018-12-09 19:45:12,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 660 transitions. [2018-12-09 19:45:12,366 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 660 transitions. Word has length 84 [2018-12-09 19:45:12,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:45:12,366 INFO L480 AbstractCegarLoop]: Abstraction has 571 states and 660 transitions. [2018-12-09 19:45:12,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 19:45:12,366 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 660 transitions. [2018-12-09 19:45:12,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-12-09 19:45:12,368 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:45:12,368 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:45:12,368 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:45:12,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:45:12,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1835233603, now seen corresponding path program 1 times [2018-12-09 19:45:12,369 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:45:12,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:12,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:45:12,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:12,369 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:45:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:45:12,426 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-09 19:45:12,426 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:45:12,426 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:45:12,427 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 149 with the following transitions: [2018-12-09 19:45:12,428 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [81], [83], [84], [87], [89], [92], [99], [102], [104], [113], [117], [121], [127], [129], [135], [137], [143], [146], [156], [157], [160], [161], [162], [164], [169], [172], [173], [174], [175], [177], [180], [184], [185], [193], [194], [223], [226], [230], [236], [239], [243], [244], [248], [251], [253], [256], [266], [276], [279], [280], [281], [282], [283], [285], [286], [287], [288], [289], [290], [291], [292], [293], [301], [302], [305], [307], [308], [309], [310], [311], [312], [315], [316], [323], [324], [327], [328], [329], [330], [331], [332], [337], [338], [339], [340], [341], [342], [343], [344], [345], [347], [348], [349], [350] [2018-12-09 19:45:12,452 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:45:12,452 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:45:12,977 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 19:45:12,978 INFO L272 AbstractInterpreter]: Visited 115 different actions 276 times. Merged at 15 different actions 15 times. Never widened. Performed 8230 root evaluator evaluations with a maximum evaluation depth of 3. Performed 8230 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 1 different actions. Largest state had 133 variables. [2018-12-09 19:45:12,983 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:45:12,984 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 19:45:12,984 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:45:12,984 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae7593d8-2607-4011-92c9-8079469f3034/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 19:45:12,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:45:12,991 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 19:45:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:45:13,080 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:45:13,112 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 19:45:13,112 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 19:45:13,349 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-09 19:45:13,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 19:45:13,366 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-09 19:45:13,366 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:45:13,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:45:13,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:45:13,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:45:13,367 INFO L87 Difference]: Start difference. First operand 571 states and 660 transitions. Second operand 6 states. [2018-12-09 19:45:13,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:45:13,409 INFO L93 Difference]: Finished difference Result 1139 states and 1362 transitions. [2018-12-09 19:45:13,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 19:45:13,409 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 148 [2018-12-09 19:45:13,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:45:13,411 INFO L225 Difference]: With dead ends: 1139 [2018-12-09 19:45:13,411 INFO L226 Difference]: Without dead ends: 592 [2018-12-09 19:45:13,412 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 293 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:45:13,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2018-12-09 19:45:13,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 586. [2018-12-09 19:45:13,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2018-12-09 19:45:13,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 676 transitions. [2018-12-09 19:45:13,432 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 676 transitions. Word has length 148 [2018-12-09 19:45:13,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:45:13,433 INFO L480 AbstractCegarLoop]: Abstraction has 586 states and 676 transitions. [2018-12-09 19:45:13,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:45:13,433 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 676 transitions. [2018-12-09 19:45:13,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-12-09 19:45:13,435 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:45:13,435 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-09 19:45:13,435 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:45:13,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:45:13,436 INFO L82 PathProgramCache]: Analyzing trace with hash -565316174, now seen corresponding path program 1 times [2018-12-09 19:45:13,436 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:45:13,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:13,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:45:13,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:13,437 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:45:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:45:13,494 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-12-09 19:45:13,494 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:45:13,494 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:45:13,494 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 165 with the following transitions: [2018-12-09 19:45:13,494 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [78], [81], [83], [84], [99], [102], [103], [104], [113], [117], [121], [124], [129], [135], [137], [143], [146], [156], [157], [160], [161], [162], [164], [169], [172], [173], [174], [175], [177], [180], [182], [184], [185], [193], [194], [226], [230], [236], [244], [248], [251], [253], [256], [259], [266], [271], [275], [276], [279], [280], [281], [282], [283], [285], [286], [287], [288], [289], [290], [291], [292], [293], [301], [302], [305], [307], [308], [315], [316], [317], [318], [323], [324], [327], [328], [329], [330], [331], [332], [339], [340], [341], [342], [343], [344], [345], [347], [348], [349], [350], [351], [352] [2018-12-09 19:45:13,496 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:45:13,497 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:45:13,623 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 19:45:13,623 INFO L272 AbstractInterpreter]: Visited 54 different actions 54 times. Never merged. Never widened. Performed 2181 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2181 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 19:45:13,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:45:13,625 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 19:45:13,782 INFO L227 lantSequenceWeakener]: Weakened 82 states. On average, predicates are now at 96.88% of their original sizes. [2018-12-09 19:45:13,782 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 19:45:13,823 INFO L418 sIntCurrentIteration]: We unified 163 AI predicates to 163 [2018-12-09 19:45:13,823 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 19:45:13,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 19:45:13,823 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2018-12-09 19:45:13,823 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:45:13,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 19:45:13,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 19:45:13,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-12-09 19:45:13,824 INFO L87 Difference]: Start difference. First operand 586 states and 676 transitions. Second operand 11 states. [2018-12-09 19:45:15,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:45:15,348 INFO L93 Difference]: Finished difference Result 1562 states and 1860 transitions. [2018-12-09 19:45:15,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 19:45:15,349 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 164 [2018-12-09 19:45:15,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:45:15,353 INFO L225 Difference]: With dead ends: 1562 [2018-12-09 19:45:15,353 INFO L226 Difference]: Without dead ends: 1000 [2018-12-09 19:45:15,354 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 163 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-12-09 19:45:15,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2018-12-09 19:45:15,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 979. [2018-12-09 19:45:15,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 979 states. [2018-12-09 19:45:15,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1128 transitions. [2018-12-09 19:45:15,401 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1128 transitions. Word has length 164 [2018-12-09 19:45:15,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:45:15,401 INFO L480 AbstractCegarLoop]: Abstraction has 979 states and 1128 transitions. [2018-12-09 19:45:15,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 19:45:15,401 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1128 transitions. [2018-12-09 19:45:15,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-12-09 19:45:15,404 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:45:15,404 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:45:15,405 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:45:15,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:45:15,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1201198401, now seen corresponding path program 1 times [2018-12-09 19:45:15,405 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:45:15,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:15,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:45:15,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:15,406 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:45:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:45:15,478 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-09 19:45:15,478 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:45:15,478 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:45:15,479 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2018-12-09 19:45:15,479 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [81], [83], [84], [87], [89], [92], [99], [102], [104], [113], [117], [121], [124], [127], [129], [135], [137], [143], [146], [156], [157], [160], [161], [162], [164], [169], [172], [173], [174], [175], [177], [182], [184], [185], [193], [194], [223], [226], [230], [236], [239], [243], [244], [248], [251], [253], [256], [266], [271], [275], [276], [279], [280], [281], [282], [283], [285], [286], [287], [288], [289], [290], [291], [292], [293], [301], [302], [305], [307], [308], [309], [310], [311], [312], [315], [316], [317], [318], [323], [324], [327], [328], [329], [330], [331], [332], [337], [338], [339], [340], [341], [342], [343], [344], [345], [347], [348], [349], [350] [2018-12-09 19:45:15,482 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:45:15,482 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:45:16,492 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 19:45:16,492 INFO L272 AbstractInterpreter]: Visited 120 different actions 824 times. Merged at 17 different actions 61 times. Never widened. Performed 28742 root evaluator evaluations with a maximum evaluation depth of 3. Performed 28742 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 10 fixpoints after 4 different actions. Largest state had 133 variables. [2018-12-09 19:45:16,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:45:16,493 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 19:45:16,493 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:45:16,493 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae7593d8-2607-4011-92c9-8079469f3034/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 19:45:16,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:45:16,501 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 19:45:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:45:16,567 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:45:16,594 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 19:45:16,594 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 19:45:16,763 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-09 19:45:16,778 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 19:45:16,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-12-09 19:45:16,778 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:45:16,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 19:45:16,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 19:45:16,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-09 19:45:16,779 INFO L87 Difference]: Start difference. First operand 979 states and 1128 transitions. Second operand 5 states. [2018-12-09 19:45:16,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:45:16,804 INFO L93 Difference]: Finished difference Result 1720 states and 2020 transitions. [2018-12-09 19:45:16,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 19:45:16,804 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2018-12-09 19:45:16,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:45:16,807 INFO L225 Difference]: With dead ends: 1720 [2018-12-09 19:45:16,807 INFO L226 Difference]: Without dead ends: 765 [2018-12-09 19:45:16,808 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 301 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-09 19:45:16,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2018-12-09 19:45:16,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 765. [2018-12-09 19:45:16,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 765 states. [2018-12-09 19:45:16,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 872 transitions. [2018-12-09 19:45:16,829 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 872 transitions. Word has length 152 [2018-12-09 19:45:16,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:45:16,829 INFO L480 AbstractCegarLoop]: Abstraction has 765 states and 872 transitions. [2018-12-09 19:45:16,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 19:45:16,829 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 872 transitions. [2018-12-09 19:45:16,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-12-09 19:45:16,830 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:45:16,830 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:45:16,831 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:45:16,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:45:16,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1051379540, now seen corresponding path program 1 times [2018-12-09 19:45:16,831 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:45:16,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:16,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:45:16,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:16,832 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:45:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:45:16,947 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-09 19:45:16,947 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:45:16,947 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:45:16,947 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 161 with the following transitions: [2018-12-09 19:45:16,947 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [82], [83], [84], [87], [89], [92], [99], [102], [104], [113], [117], [121], [124], [129], [132], [135], [137], [143], [146], [156], [157], [160], [161], [162], [164], [169], [172], [173], [174], [175], [177], [182], [184], [185], [190], [192], [193], [194], [223], [226], [230], [236], [241], [243], [244], [248], [251], [253], [256], [266], [271], [275], [276], [279], [280], [281], [282], [283], [285], [286], [287], [288], [289], [290], [291], [292], [293], [301], [302], [305], [307], [308], [309], [310], [311], [312], [315], [316], [317], [318], [319], [320], [323], [324], [327], [328], [329], [330], [331], [332], [337], [338], [339], [340], [341], [342], [343], [344], [345], [347], [348], [349], [350] [2018-12-09 19:45:16,949 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:45:16,949 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:45:17,299 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 19:45:17,299 INFO L272 AbstractInterpreter]: Visited 116 different actions 209 times. Merged at 9 different actions 14 times. Never widened. Performed 11574 root evaluator evaluations with a maximum evaluation depth of 3. Performed 11574 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 1 different actions. Largest state had 133 variables. [2018-12-09 19:45:17,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:45:17,301 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 19:45:17,301 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:45:17,301 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae7593d8-2607-4011-92c9-8079469f3034/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 19:45:17,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:45:17,307 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 19:45:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:45:17,364 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:45:17,461 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 19:45:17,461 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 19:45:18,176 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-09 19:45:18,191 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 19:45:18,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-09 19:45:18,191 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:45:18,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 19:45:18,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 19:45:18,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-09 19:45:18,192 INFO L87 Difference]: Start difference. First operand 765 states and 872 transitions. Second operand 8 states. [2018-12-09 19:45:18,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:45:18,376 INFO L93 Difference]: Finished difference Result 1868 states and 2158 transitions. [2018-12-09 19:45:18,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:45:18,376 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 160 [2018-12-09 19:45:18,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:45:18,380 INFO L225 Difference]: With dead ends: 1868 [2018-12-09 19:45:18,380 INFO L226 Difference]: Without dead ends: 1127 [2018-12-09 19:45:18,381 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 301 SyntacticMatches, 9 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 19:45:18,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2018-12-09 19:45:18,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1124. [2018-12-09 19:45:18,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1124 states. [2018-12-09 19:45:18,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1278 transitions. [2018-12-09 19:45:18,417 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1278 transitions. Word has length 160 [2018-12-09 19:45:18,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:45:18,417 INFO L480 AbstractCegarLoop]: Abstraction has 1124 states and 1278 transitions. [2018-12-09 19:45:18,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 19:45:18,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1278 transitions. [2018-12-09 19:45:18,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-12-09 19:45:18,419 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:45:18,419 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:45:18,419 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:45:18,419 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:45:18,420 INFO L82 PathProgramCache]: Analyzing trace with hash 466235648, now seen corresponding path program 1 times [2018-12-09 19:45:18,420 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:45:18,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:18,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:45:18,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:18,420 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:45:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:45:18,505 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 19:45:18,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:45:18,506 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 19:45:18,506 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:45:18,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 19:45:18,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 19:45:18,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:45:18,506 INFO L87 Difference]: Start difference. First operand 1124 states and 1278 transitions. Second operand 9 states. [2018-12-09 19:45:18,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:45:18,861 INFO L93 Difference]: Finished difference Result 1752 states and 2025 transitions. [2018-12-09 19:45:18,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-09 19:45:18,861 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2018-12-09 19:45:18,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:45:18,864 INFO L225 Difference]: With dead ends: 1752 [2018-12-09 19:45:18,865 INFO L226 Difference]: Without dead ends: 1007 [2018-12-09 19:45:18,866 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2018-12-09 19:45:18,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2018-12-09 19:45:18,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 1002. [2018-12-09 19:45:18,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1002 states. [2018-12-09 19:45:18,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1127 transitions. [2018-12-09 19:45:18,896 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1127 transitions. Word has length 152 [2018-12-09 19:45:18,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:45:18,896 INFO L480 AbstractCegarLoop]: Abstraction has 1002 states and 1127 transitions. [2018-12-09 19:45:18,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 19:45:18,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1127 transitions. [2018-12-09 19:45:18,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-12-09 19:45:18,898 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:45:18,898 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:45:18,898 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:45:18,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:45:18,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1188948764, now seen corresponding path program 1 times [2018-12-09 19:45:18,898 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:45:18,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:18,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:45:18,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:18,899 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:45:18,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:45:18,946 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-09 19:45:18,946 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:45:18,946 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:45:18,946 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:45:18,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:45:18,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:45:18,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:45:18,947 INFO L87 Difference]: Start difference. First operand 1002 states and 1127 transitions. Second operand 6 states. [2018-12-09 19:45:19,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:45:19,053 INFO L93 Difference]: Finished difference Result 1011 states and 1137 transitions. [2018-12-09 19:45:19,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:45:19,054 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2018-12-09 19:45:19,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:45:19,056 INFO L225 Difference]: With dead ends: 1011 [2018-12-09 19:45:19,056 INFO L226 Difference]: Without dead ends: 1008 [2018-12-09 19:45:19,057 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:45:19,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2018-12-09 19:45:19,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 1002. [2018-12-09 19:45:19,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1002 states. [2018-12-09 19:45:19,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1125 transitions. [2018-12-09 19:45:19,080 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1125 transitions. Word has length 156 [2018-12-09 19:45:19,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:45:19,080 INFO L480 AbstractCegarLoop]: Abstraction has 1002 states and 1125 transitions. [2018-12-09 19:45:19,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:45:19,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1125 transitions. [2018-12-09 19:45:19,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-12-09 19:45:19,082 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:45:19,082 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:45:19,082 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:45:19,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:45:19,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1039540579, now seen corresponding path program 1 times [2018-12-09 19:45:19,082 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:45:19,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:19,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:45:19,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:19,083 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:45:19,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:45:19,136 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-12-09 19:45:19,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:45:19,136 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 19:45:19,136 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:45:19,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 19:45:19,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 19:45:19,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:45:19,137 INFO L87 Difference]: Start difference. First operand 1002 states and 1125 transitions. Second operand 9 states. [2018-12-09 19:45:19,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:45:19,187 INFO L93 Difference]: Finished difference Result 1643 states and 1868 transitions. [2018-12-09 19:45:19,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 19:45:19,188 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 174 [2018-12-09 19:45:19,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:45:19,191 INFO L225 Difference]: With dead ends: 1643 [2018-12-09 19:45:19,191 INFO L226 Difference]: Without dead ends: 1018 [2018-12-09 19:45:19,192 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-12-09 19:45:19,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2018-12-09 19:45:19,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 1012. [2018-12-09 19:45:19,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1012 states. [2018-12-09 19:45:19,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1135 transitions. [2018-12-09 19:45:19,228 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1135 transitions. Word has length 174 [2018-12-09 19:45:19,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:45:19,228 INFO L480 AbstractCegarLoop]: Abstraction has 1012 states and 1135 transitions. [2018-12-09 19:45:19,228 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 19:45:19,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1135 transitions. [2018-12-09 19:45:19,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-12-09 19:45:19,230 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:45:19,230 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:45:19,231 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:45:19,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:45:19,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1011443419, now seen corresponding path program 1 times [2018-12-09 19:45:19,231 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:45:19,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:19,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:45:19,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:45:19,232 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:45:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:45:19,336 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-09 19:45:19,336 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:45:19,336 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:45:19,336 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 175 with the following transitions: [2018-12-09 19:45:19,336 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [56], [57], [58], [60], [63], [67], [68], [69], [72], [74], [75], [78], [82], [83], [84], [87], [89], [95], [99], [102], [103], [104], [113], [117], [121], [124], [127], [129], [135], [137], [143], [146], [156], [157], [158], [159], [160], [161], [162], [164], [169], [172], [173], [174], [175], [177], [182], [184], [185], [193], [194], [223], [226], [230], [236], [239], [243], [244], [248], [251], [253], [256], [263], [266], [271], [275], [276], [279], [280], [281], [282], [283], [285], [286], [287], [288], [289], [290], [291], [292], [293], [295], [296], [299], [300], [301], [302], [303], [304], [305], [307], [308], [309], [310], [313], [314], [315], [316], [317], [318], [323], [324], [327], [328], [329], [330], [331], [332], [337], [338], [339], [340], [341], [342], [343], [344], [345], [347], [348], [349], [350], [353], [354] [2018-12-09 19:45:19,338 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:45:19,338 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:45:20,012 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 19:45:20,013 INFO L272 AbstractInterpreter]: Visited 142 different actions 692 times. Merged at 16 different actions 46 times. Never widened. Performed 21685 root evaluator evaluations with a maximum evaluation depth of 5. Performed 21685 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-12-09 19:45:20,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:45:20,015 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 19:45:20,015 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:45:20,015 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae7593d8-2607-4011-92c9-8079469f3034/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 19:45:20,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:45:20,021 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 19:45:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:45:20,082 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:45:20,142 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:45:20,142 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 19:45:20,317 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-09 19:45:20,342 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 19:45:20,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-12-09 19:45:20,343 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 19:45:20,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-09 19:45:20,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-09 19:45:20,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-12-09 19:45:20,343 INFO L87 Difference]: Start difference. First operand 1012 states and 1135 transitions. Second operand 14 states. [2018-12-09 19:45:21,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:45:21,003 INFO L93 Difference]: Finished difference Result 1648 states and 2040 transitions. [2018-12-09 19:45:21,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-12-09 19:45:21,004 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 174 [2018-12-09 19:45:21,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:45:21,004 INFO L225 Difference]: With dead ends: 1648 [2018-12-09 19:45:21,004 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 19:45:21,006 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 342 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=212, Invalid=718, Unknown=0, NotChecked=0, Total=930 [2018-12-09 19:45:21,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 19:45:21,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 19:45:21,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 19:45:21,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 19:45:21,007 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2018-12-09 19:45:21,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:45:21,007 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 19:45:21,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-09 19:45:21,007 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 19:45:21,007 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 19:45:21,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 19:45:21,177 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:45:21,179 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:45:21,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:45:21,185 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:45:21,187 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:45:21,188 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:45:21,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:45:21,190 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:45:21,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:45:21,235 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:45:21,278 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:45:21,281 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:45:21,282 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:45:21,338 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 19:45:21,904 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 37 [2018-12-09 19:45:22,438 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 31 [2018-12-09 19:45:23,470 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 35 [2018-12-09 19:45:23,486 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 427 433) the Hoare annotation is: true [2018-12-09 19:45:23,486 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 427 433) no Hoare annotation was computed. [2018-12-09 19:45:23,486 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 434 442) no Hoare annotation was computed. [2018-12-09 19:45:23,487 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 434 442) the Hoare annotation is: true [2018-12-09 19:45:23,487 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 434 442) no Hoare annotation was computed. [2018-12-09 19:45:23,487 INFO L448 ceAbstractionStarter]: For program point L386-1(line 386) no Hoare annotation was computed. [2018-12-09 19:45:23,487 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 380 404) the Hoare annotation is: true [2018-12-09 19:45:23,487 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 380 404) no Hoare annotation was computed. [2018-12-09 19:45:23,487 INFO L444 ceAbstractionStarter]: At program point L394(line 394) the Hoare annotation is: (let ((.cse2 (not (= 0 ~pumpRunning~0))) (.cse0 (= ~systemActive~0 0)) (.cse3 (< ~waterLevel~0 1)) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or (< ~methaneLevelCritical~0 1) .cse2 .cse0 .cse3) (or .cse2 .cse0 .cse3 .cse1))) [2018-12-09 19:45:23,487 INFO L448 ceAbstractionStarter]: For program point L392(lines 392 398) no Hoare annotation was computed. [2018-12-09 19:45:23,487 INFO L444 ceAbstractionStarter]: At program point L390(line 390) the Hoare annotation is: (let ((.cse2 (not (= 0 ~pumpRunning~0))) (.cse0 (= ~systemActive~0 0)) (.cse3 (< ~waterLevel~0 1)) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or (< ~methaneLevelCritical~0 1) .cse2 .cse0 .cse3) (or .cse2 .cse0 .cse3 .cse1))) [2018-12-09 19:45:23,487 INFO L448 ceAbstractionStarter]: For program point L390-1(line 390) no Hoare annotation was computed. [2018-12-09 19:45:23,487 INFO L448 ceAbstractionStarter]: For program point L388(lines 388 401) no Hoare annotation was computed. [2018-12-09 19:45:23,487 INFO L448 ceAbstractionStarter]: For program point L388-1(lines 380 404) no Hoare annotation was computed. [2018-12-09 19:45:23,488 INFO L451 ceAbstractionStarter]: At program point L386(line 386) the Hoare annotation is: true [2018-12-09 19:45:23,488 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 516 538) the Hoare annotation is: (or (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 19:45:23,488 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 516 538) no Hoare annotation was computed. [2018-12-09 19:45:23,488 INFO L444 ceAbstractionStarter]: At program point L528(line 528) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= main_~tmp~8 1) (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-09 19:45:23,488 INFO L444 ceAbstractionStarter]: At program point L528-1(line 528) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= main_~tmp~8 1) (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-09 19:45:23,488 INFO L448 ceAbstractionStarter]: For program point L526(lines 526 533) no Hoare annotation was computed. [2018-12-09 19:45:23,488 INFO L448 ceAbstractionStarter]: For program point L526-1(lines 526 533) no Hoare annotation was computed. [2018-12-09 19:45:23,488 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 516 538) no Hoare annotation was computed. [2018-12-09 19:45:23,488 INFO L448 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-12-09 19:45:23,488 INFO L444 ceAbstractionStarter]: At program point L523(line 523) the Hoare annotation is: (or (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 19:45:23,489 INFO L444 ceAbstractionStarter]: At program point L522(line 522) the Hoare annotation is: (or (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 19:45:23,489 INFO L444 ceAbstractionStarter]: At program point L522-1(line 522) the Hoare annotation is: (or (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 19:45:23,489 INFO L444 ceAbstractionStarter]: At program point L211(line 211) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1)) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| 0) .cse2) (or (< ~methaneLevelCritical~0 1) .cse3 (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 .cse1 .cse3 .cse2))) [2018-12-09 19:45:23,489 INFO L448 ceAbstractionStarter]: For program point L211-1(lines 192 216) no Hoare annotation was computed. [2018-12-09 19:45:23,489 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 192 216) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1 .cse2) (or .cse1 .cse2 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 19:45:23,489 INFO L444 ceAbstractionStarter]: At program point L206(line 206) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 19:45:23,489 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 192 216) no Hoare annotation was computed. [2018-12-09 19:45:23,489 INFO L444 ceAbstractionStarter]: At program point L202(line 202) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1)) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse3))) [2018-12-09 19:45:23,489 INFO L448 ceAbstractionStarter]: For program point L200(lines 200 208) no Hoare annotation was computed. [2018-12-09 19:45:23,489 INFO L444 ceAbstractionStarter]: At program point L198(line 198) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1)) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse3))) [2018-12-09 19:45:23,489 INFO L448 ceAbstractionStarter]: For program point L198-1(line 198) no Hoare annotation was computed. [2018-12-09 19:45:23,489 INFO L448 ceAbstractionStarter]: For program point L196(lines 196 213) no Hoare annotation was computed. [2018-12-09 19:45:23,489 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 287 295) no Hoare annotation was computed. [2018-12-09 19:45:23,489 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 287 295) the Hoare annotation is: true [2018-12-09 19:45:23,489 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 287 295) no Hoare annotation was computed. [2018-12-09 19:45:23,490 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 351 369) the Hoare annotation is: true [2018-12-09 19:45:23,490 INFO L448 ceAbstractionStarter]: For program point L360(lines 360 364) no Hoare annotation was computed. [2018-12-09 19:45:23,490 INFO L451 ceAbstractionStarter]: At program point L358(line 358) the Hoare annotation is: true [2018-12-09 19:45:23,490 INFO L448 ceAbstractionStarter]: For program point L360-2(lines 360 364) no Hoare annotation was computed. [2018-12-09 19:45:23,490 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 351 369) no Hoare annotation was computed. [2018-12-09 19:45:23,490 INFO L448 ceAbstractionStarter]: For program point L358-1(line 358) no Hoare annotation was computed. [2018-12-09 19:45:23,490 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 351 369) no Hoare annotation was computed. [2018-12-09 19:45:23,490 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 420 426) no Hoare annotation was computed. [2018-12-09 19:45:23,490 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 420 426) the Hoare annotation is: true [2018-12-09 19:45:23,490 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 506 515) the Hoare annotation is: (or (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 19:45:23,490 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 506 515) no Hoare annotation was computed. [2018-12-09 19:45:23,490 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 506 515) no Hoare annotation was computed. [2018-12-09 19:45:23,490 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 276 286) the Hoare annotation is: true [2018-12-09 19:45:23,490 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 276 286) no Hoare annotation was computed. [2018-12-09 19:45:23,490 INFO L451 ceAbstractionStarter]: At program point L281(line 281) the Hoare annotation is: true [2018-12-09 19:45:23,490 INFO L448 ceAbstractionStarter]: For program point L281-1(line 281) no Hoare annotation was computed. [2018-12-09 19:45:23,490 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 276 286) no Hoare annotation was computed. [2018-12-09 19:45:23,491 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 268 275) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1)) (.cse3 (= |old(~pumpRunning~0)| 0)) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse3 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 19:45:23,491 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 268 275) no Hoare annotation was computed. [2018-12-09 19:45:23,491 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 268 275) no Hoare annotation was computed. [2018-12-09 19:45:23,491 INFO L448 ceAbstractionStarter]: For program point L989(lines 989 995) no Hoare annotation was computed. [2018-12-09 19:45:23,491 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 985 998) no Hoare annotation was computed. [2018-12-09 19:45:23,491 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 985 998) the Hoare annotation is: true [2018-12-09 19:45:23,491 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 985 998) no Hoare annotation was computed. [2018-12-09 19:45:23,491 INFO L444 ceAbstractionStarter]: At program point L224(line 224) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse3 (< ~waterLevel~0 1)) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse1 .cse3) (or .cse4 .cse1 .cse3 .cse5) (or .cse1 .cse3 .cse2 .cse5))) [2018-12-09 19:45:23,491 INFO L448 ceAbstractionStarter]: For program point L224-1(line 224) no Hoare annotation was computed. [2018-12-09 19:45:23,491 INFO L448 ceAbstractionStarter]: For program point L222(lines 222 239) no Hoare annotation was computed. [2018-12-09 19:45:23,491 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 218 242) no Hoare annotation was computed. [2018-12-09 19:45:23,491 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 218 242) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse1 .cse2 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 19:45:23,491 INFO L444 ceAbstractionStarter]: At program point L237(line 237) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse3 (= |old(~pumpRunning~0)| 0)) (.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse1 .cse2) (or .cse1 .cse2 .cse3 .cse5) (or .cse1 .cse2 .cse4 .cse5))) [2018-12-09 19:45:23,491 INFO L448 ceAbstractionStarter]: For program point L237-1(lines 218 242) no Hoare annotation was computed. [2018-12-09 19:45:23,491 INFO L444 ceAbstractionStarter]: At program point L232(line 232) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (and (= processEnvironment_~tmp~3 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))))) [2018-12-09 19:45:23,491 INFO L444 ceAbstractionStarter]: At program point L228(line 228) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2 (and (= processEnvironment_~tmp~3 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1 .cse2) (or .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 19:45:23,491 INFO L448 ceAbstractionStarter]: For program point L226(lines 226 234) no Hoare annotation was computed. [2018-12-09 19:45:23,491 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 158 164) no Hoare annotation was computed. [2018-12-09 19:45:23,491 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 158 164) the Hoare annotation is: true [2018-12-09 19:45:23,492 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 54 119) the Hoare annotation is: (or (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 19:45:23,492 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 54 119) no Hoare annotation was computed. [2018-12-09 19:45:23,492 INFO L444 ceAbstractionStarter]: At program point L112(lines 63 113) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 19:45:23,492 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2018-12-09 19:45:23,492 INFO L444 ceAbstractionStarter]: At program point L102-2(lines 94 107) the Hoare annotation is: (let ((.cse4 (= 0 ~methaneLevelCritical~0)) (.cse0 (<= 2 ~waterLevel~0)) (.cse5 (= 0 ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 0))) (.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse6 (<= 1 ~waterLevel~0)) (.cse3 (= test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse1 .cse6 .cse3) (not (= |old(~systemActive~0)| 1)) (and .cse4 .cse0 .cse1 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and .cse5 .cse1 .cse2 .cse6 .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-09 19:45:23,492 INFO L448 ceAbstractionStarter]: For program point L65(lines 64 111) no Hoare annotation was computed. [2018-12-09 19:45:23,492 INFO L444 ceAbstractionStarter]: At program point L96(line 96) the Hoare annotation is: (let ((.cse4 (= 0 ~methaneLevelCritical~0)) (.cse0 (<= 2 ~waterLevel~0)) (.cse5 (= 0 ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 0))) (.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse6 (<= 1 ~waterLevel~0)) (.cse3 (= test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse1 .cse6 .cse3) (not (= |old(~systemActive~0)| 1)) (and .cse4 .cse0 .cse1 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and .cse5 .cse1 .cse2 .cse6 .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-09 19:45:23,492 INFO L448 ceAbstractionStarter]: For program point L94(lines 94 107) no Hoare annotation was computed. [2018-12-09 19:45:23,492 INFO L444 ceAbstractionStarter]: At program point L86(line 86) the Hoare annotation is: (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse1 (= 0 ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 0))) (.cse3 (<= 1 ~waterLevel~0)) (.cse4 (= test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= |old(~systemActive~0)| 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse2 .cse4) (not (= 0 |old(~pumpRunning~0)|)) (and .cse1 .cse2 (<= 1 ~methaneLevelCritical~0) .cse3 .cse4) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-09 19:45:23,492 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 90) no Hoare annotation was computed. [2018-12-09 19:45:23,492 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 84 90) no Hoare annotation was computed. [2018-12-09 19:45:23,492 INFO L444 ceAbstractionStarter]: At program point L109(lines 64 111) the Hoare annotation is: (let ((.cse1 (= 0 ~pumpRunning~0)) (.cse3 (<= 1 ~waterLevel~0)) (.cse0 (= 0 ~methaneLevelCritical~0)) (.cse2 (not (= ~systemActive~0 0))) (.cse4 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 (<= 1 ~methaneLevelCritical~0) .cse3 .cse4) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse0 (<= 2 ~waterLevel~0) .cse2 .cse4))) [2018-12-09 19:45:23,492 INFO L444 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (let ((.cse1 (= 0 ~pumpRunning~0)) (.cse3 (<= 1 ~waterLevel~0)) (.cse0 (= 0 ~methaneLevelCritical~0)) (.cse2 (not (= ~systemActive~0 0))) (.cse4 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 (<= 1 ~methaneLevelCritical~0) .cse3 .cse4) (and .cse0 (<= 2 ~waterLevel~0) .cse2 .cse4) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-09 19:45:23,492 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 80) no Hoare annotation was computed. [2018-12-09 19:45:23,493 INFO L448 ceAbstractionStarter]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2018-12-09 19:45:23,493 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 54 119) no Hoare annotation was computed. [2018-12-09 19:45:23,493 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 70) no Hoare annotation was computed. [2018-12-09 19:45:23,493 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 243 250) the Hoare annotation is: (or (< ~waterLevel~0 2) (= |old(~pumpRunning~0)| ~pumpRunning~0) (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0)) (not (= ~methaneLevelCritical~0 0))) [2018-12-09 19:45:23,493 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 243 250) no Hoare annotation was computed. [2018-12-09 19:45:23,493 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 243 250) no Hoare annotation was computed. [2018-12-09 19:45:23,493 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 999 1007) no Hoare annotation was computed. [2018-12-09 19:45:23,493 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 999 1007) the Hoare annotation is: true [2018-12-09 19:45:23,493 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 999 1007) no Hoare annotation was computed. [2018-12-09 19:45:23,493 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:45:23,493 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-09 19:45:23,493 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:45:23,493 INFO L444 ceAbstractionStarter]: At program point L256(line 256) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0)) (.cse3 (< ~waterLevel~0 2)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (< ~methaneLevelCritical~0 1) .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 19:45:23,493 INFO L448 ceAbstractionStarter]: For program point L256-1(line 256) no Hoare annotation was computed. [2018-12-09 19:45:23,493 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 251 267) no Hoare annotation was computed. [2018-12-09 19:45:23,493 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 251 267) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0)) (.cse3 (< ~waterLevel~0 2)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (< ~methaneLevelCritical~0 1) .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 19:45:23,493 INFO L444 ceAbstractionStarter]: At program point L262(line 262) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 2))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 19:45:23,493 INFO L448 ceAbstractionStarter]: For program point L262-1(lines 251 267) no Hoare annotation was computed. [2018-12-09 19:45:23,493 INFO L448 ceAbstractionStarter]: For program point L258(lines 258 264) no Hoare annotation was computed. [2018-12-09 19:45:23,493 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 976 984) the Hoare annotation is: true [2018-12-09 19:45:23,493 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 976 984) no Hoare annotation was computed. [2018-12-09 19:45:23,494 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 976 984) no Hoare annotation was computed. [2018-12-09 19:45:23,494 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 332 350) no Hoare annotation was computed. [2018-12-09 19:45:23,494 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 332 350) the Hoare annotation is: true [2018-12-09 19:45:23,494 INFO L448 ceAbstractionStarter]: For program point L341(lines 341 345) no Hoare annotation was computed. [2018-12-09 19:45:23,494 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 332 350) no Hoare annotation was computed. [2018-12-09 19:45:23,494 INFO L451 ceAbstractionStarter]: At program point L339(line 339) the Hoare annotation is: true [2018-12-09 19:45:23,494 INFO L448 ceAbstractionStarter]: For program point L341-2(lines 341 345) no Hoare annotation was computed. [2018-12-09 19:45:23,494 INFO L448 ceAbstractionStarter]: For program point L339-1(line 339) no Hoare annotation was computed. [2018-12-09 19:45:23,494 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 932 943) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1)) (.cse3 (= 0 ~methaneLevelCritical~0)) (.cse4 (not (= |old(~methaneLevelCritical~0)| 0)))) (and (or (< |old(~methaneLevelCritical~0)| 1) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1 .cse2) (or .cse3 (or .cse1 .cse4) (< ~waterLevel~0 2)) (or .cse0 .cse1 .cse2 .cse3 .cse4))) [2018-12-09 19:45:23,494 INFO L448 ceAbstractionStarter]: For program point L936-1(lines 932 943) no Hoare annotation was computed. [2018-12-09 19:45:23,494 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 932 943) no Hoare annotation was computed. [2018-12-09 19:45:23,494 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 944 952) the Hoare annotation is: true [2018-12-09 19:45:23,494 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 944 952) no Hoare annotation was computed. [2018-12-09 19:45:23,494 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 944 952) no Hoare annotation was computed. [2018-12-09 19:45:23,494 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 445 474) no Hoare annotation was computed. [2018-12-09 19:45:23,494 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 445 474) the Hoare annotation is: true [2018-12-09 19:45:23,494 INFO L451 ceAbstractionStarter]: At program point L470(lines 445 474) the Hoare annotation is: true [2018-12-09 19:45:23,494 INFO L448 ceAbstractionStarter]: For program point L466(line 466) no Hoare annotation was computed. [2018-12-09 19:45:23,494 INFO L448 ceAbstractionStarter]: For program point L459(lines 459 463) no Hoare annotation was computed. [2018-12-09 19:45:23,494 INFO L451 ceAbstractionStarter]: At program point L459-1(lines 459 463) the Hoare annotation is: true [2018-12-09 19:45:23,494 INFO L448 ceAbstractionStarter]: For program point L456(line 456) no Hoare annotation was computed. [2018-12-09 19:45:23,494 INFO L451 ceAbstractionStarter]: At program point L455-2(lines 455 469) the Hoare annotation is: true [2018-12-09 19:45:23,495 INFO L451 ceAbstractionStarter]: At program point L451(line 451) the Hoare annotation is: true [2018-12-09 19:45:23,495 INFO L448 ceAbstractionStarter]: For program point L451-1(line 451) no Hoare annotation was computed. [2018-12-09 19:45:23,495 INFO L444 ceAbstractionStarter]: At program point L147(line 147) the Hoare annotation is: (let ((.cse8 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse3 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse8)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< |old(~waterLevel~0)| 1)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (< ~methaneLevelCritical~0 1)) (.cse1 (= ~systemActive~0 0)) (.cse6 (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse8)) (.cse7 (< |old(~waterLevel~0)| 2))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse3 .cse0 .cse1 .cse2) (or .cse1 .cse6 .cse7 .cse4) (or .cse5 .cse1 .cse6 .cse7)))) [2018-12-09 19:45:23,495 INFO L444 ceAbstractionStarter]: At program point L145(lines 145 151) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse9 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse4 (and (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse5 (< ~methaneLevelCritical~0 1)) (.cse7 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (and (<= 2 ~waterLevel~0) (not .cse0) .cse9)) (.cse8 (< |old(~waterLevel~0)| 1)) (.cse6 (and .cse9 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse4 .cse0 .cse2) (or .cse5 .cse6 .cse7 .cse0 .cse8) (or .cse7 .cse0 .cse1 .cse8 .cse6 .cse3)))) [2018-12-09 19:45:23,495 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 134 157) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (< |old(~waterLevel~0)| 1)) (.cse2 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse1 (= ~systemActive~0 0)) (.cse3 (< |old(~waterLevel~0)| 2)) (.cse6 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse5 .cse2 .cse6) (or .cse0 .cse2 .cse4 .cse1 .cse5) (or .cse2 .cse1 .cse3 .cse6))) [2018-12-09 19:45:23,495 INFO L444 ceAbstractionStarter]: At program point L140(line 140) the Hoare annotation is: (let ((.cse1 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse3 (< |old(~waterLevel~0)| 2)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0)) (.cse6 (< |old(~waterLevel~0)| 1)) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse2 .cse6) (or .cse5 .cse2 .cse6 .cse4))) [2018-12-09 19:45:23,495 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 134 157) no Hoare annotation was computed. [2018-12-09 19:45:23,495 INFO L448 ceAbstractionStarter]: For program point L138(lines 137 156) no Hoare annotation was computed. [2018-12-09 19:45:23,495 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 134 157) no Hoare annotation was computed. [2018-12-09 19:45:23,495 INFO L448 ceAbstractionStarter]: For program point L912-1(lines 908 919) no Hoare annotation was computed. [2018-12-09 19:45:23,495 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 908 919) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (= ~systemActive~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (< |old(~waterLevel~0)| 2))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3))) [2018-12-09 19:45:23,495 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 908 919) no Hoare annotation was computed. [2018-12-09 19:45:23,495 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 499 505) no Hoare annotation was computed. [2018-12-09 19:45:23,495 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 499 505) the Hoare annotation is: true [2018-12-09 19:45:23,495 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:45:23,495 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-12-09 19:45:23,495 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:45:23,495 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:45:23,496 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 166 190) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0)) (.cse3 (< ~waterLevel~0 1)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 19:45:23,496 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 166 190) no Hoare annotation was computed. [2018-12-09 19:45:23,496 INFO L444 ceAbstractionStarter]: At program point L185(line 185) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 19:45:23,496 INFO L448 ceAbstractionStarter]: For program point L185-1(lines 166 190) no Hoare annotation was computed. [2018-12-09 19:45:23,496 INFO L444 ceAbstractionStarter]: At program point L180(line 180) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse3 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse2 (< ~waterLevel~0 1))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 19:45:23,496 INFO L444 ceAbstractionStarter]: At program point L176(line 176) the Hoare annotation is: (let ((.cse3 (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or .cse3 (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2018-12-09 19:45:23,496 INFO L448 ceAbstractionStarter]: For program point L174(lines 174 182) no Hoare annotation was computed. [2018-12-09 19:45:23,496 INFO L444 ceAbstractionStarter]: At program point L172(line 172) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0)) (.cse3 (< ~waterLevel~0 1)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 19:45:23,496 INFO L448 ceAbstractionStarter]: For program point L172-1(line 172) no Hoare annotation was computed. [2018-12-09 19:45:23,496 INFO L448 ceAbstractionStarter]: For program point L170(lines 170 187) no Hoare annotation was computed. [2018-12-09 19:45:23,496 INFO L448 ceAbstractionStarter]: For program point startSystemEXIT(lines 370 377) no Hoare annotation was computed. [2018-12-09 19:45:23,496 INFO L444 ceAbstractionStarter]: At program point startSystemENTRY(lines 370 377) the Hoare annotation is: (let ((.cse3 (< ~waterLevel~0 2)) (.cse8 (not (= ~waterLevel~0 2))) (.cse6 (= ~systemActive~0 1)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse7 (not (= |old(~systemActive~0)| 1))) (.cse10 (not (= ~waterLevel~0 1))) (.cse5 (not (= 0 ~pumpRunning~0))) (.cse1 (= |old(~systemActive~0)| 0)) (.cse9 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse1 .cse3 .cse4) (or .cse0 .cse5 .cse6 .cse7 .cse8) (or .cse0 .cse2 .cse5 .cse1 .cse9) (or .cse7 .cse4 .cse6 .cse8) (or .cse6 .cse5 .cse7 .cse10 .cse4) (or .cse6 .cse0 .cse5 .cse7 .cse10) (or .cse5 .cse1 .cse9 .cse2 .cse4))) [2018-12-09 19:45:23,496 INFO L448 ceAbstractionStarter]: For program point startSystemFINAL(lines 370 377) no Hoare annotation was computed. [2018-12-09 19:45:23,496 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 920 931) no Hoare annotation was computed. [2018-12-09 19:45:23,496 INFO L448 ceAbstractionStarter]: For program point L924-1(lines 920 931) no Hoare annotation was computed. [2018-12-09 19:45:23,496 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 920 931) the Hoare annotation is: (let ((.cse2 (= ~systemActive~0 0)) (.cse3 (not (= 0 ~pumpRunning~0))) (.cse4 (< |old(~waterLevel~0)| 1)) (.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (< |old(~waterLevel~0)| 2) .cse0 .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) .cse2 .cse3 .cse0 .cse4) (or .cse2 .cse3 .cse4 .cse0 .cse1))) [2018-12-09 19:45:23,496 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 40 47) no Hoare annotation was computed. [2018-12-09 19:45:23,497 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2018-12-09 19:45:23,497 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2018-12-09 19:45:23,497 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2018-12-09 19:45:23,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:45:23 BoogieIcfgContainer [2018-12-09 19:45:23,507 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:45:23,507 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:45:23,507 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:45:23,507 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:45:23,508 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:45:10" (3/4) ... [2018-12-09 19:45:23,510 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 19:45:23,514 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-09 19:45:23,514 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-09 19:45:23,514 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-12-09 19:45:23,514 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 19:45:23,514 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-12-09 19:45:23,514 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-09 19:45:23,514 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-09 19:45:23,514 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-09 19:45:23,514 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-09 19:45:23,514 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-09 19:45:23,514 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-09 19:45:23,514 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-09 19:45:23,514 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-09 19:45:23,514 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-09 19:45:23,514 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-09 19:45:23,514 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-12-09 19:45:23,514 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-09 19:45:23,515 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 19:45:23,515 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-09 19:45:23,515 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-12-09 19:45:23,515 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-09 19:45:23,515 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-09 19:45:23,515 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-09 19:45:23,515 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-09 19:45:23,515 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-09 19:45:23,515 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-09 19:45:23,515 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-09 19:45:23,515 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 19:45:23,515 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-12-09 19:45:23,515 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-09 19:45:23,515 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-09 19:45:23,521 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2018-12-09 19:45:23,521 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-12-09 19:45:23,522 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-09 19:45:23,522 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 19:45:23,522 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 19:45:23,522 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 19:45:23,541 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(0 == \old(pumpRunning)) || ((((0 == methaneLevelCritical && 0 == pumpRunning) && !(systemActive == 0)) && 1 <= waterLevel) && splverifierCounter == 0)) || ((((0 == pumpRunning && !(systemActive == 0)) && 1 <= methaneLevelCritical) && 1 <= waterLevel) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (((0 == methaneLevelCritical && 2 <= waterLevel) && !(systemActive == 0)) && splverifierCounter == 0) [2018-12-09 19:45:23,541 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-09 19:45:23,572 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ae7593d8-2607-4011-92c9-8079469f3034/bin-2019/utaipan/witness.graphml [2018-12-09 19:45:23,572 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:45:23,573 INFO L168 Benchmark]: Toolchain (without parser) took 13335.46 ms. Allocated memory was 1.0 GB in the beginning and 1.8 GB in the end (delta: 782.8 MB). Free memory was 957.1 MB in the beginning and 1.0 GB in the end (delta: -45.0 MB). Peak memory consumption was 737.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:45:23,573 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:45:23,573 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -152.0 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-12-09 19:45:23,573 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.34 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 19:45:23,573 INFO L168 Benchmark]: Boogie Preprocessor took 22.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:45:23,573 INFO L168 Benchmark]: RCFGBuilder took 339.58 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: 54.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:45:23,574 INFO L168 Benchmark]: TraceAbstraction took 12602.22 ms. Allocated memory was 1.2 GB in the beginning and 1.8 GB in the end (delta: 657.5 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.1 MB). Peak memory consumption was 966.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:45:23,574 INFO L168 Benchmark]: Witness Printer took 65.42 ms. Allocated memory is still 1.8 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 200.0 kB). Peak memory consumption was 200.0 kB. Max. memory is 11.5 GB. [2018-12-09 19:45:23,575 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 282.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -152.0 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 339.58 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: 54.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12602.22 ms. Allocated memory was 1.2 GB in the beginning and 1.8 GB in the end (delta: 657.5 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.1 MB). Peak memory consumption was 966.8 MB. Max. memory is 11.5 GB. * Witness Printer took 65.42 ms. Allocated memory is still 1.8 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 200.0 kB). Peak memory consumption was 200.0 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (((((!(0 == \old(pumpRunning)) || ((((0 == methaneLevelCritical && 0 == pumpRunning) && !(systemActive == 0)) && 1 <= waterLevel) && splverifierCounter == 0)) || ((((0 == pumpRunning && !(systemActive == 0)) && 1 <= methaneLevelCritical) && 1 <= waterLevel) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (((0 == methaneLevelCritical && 2 <= waterLevel) && !(systemActive == 0)) && splverifierCounter == 0) - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 32 procedures, 170 locations, 1 error locations. SAFE Result, 12.5s OverallTime, 13 OverallIterations, 2 TraceHistogramMax, 3.8s AutomataDifference, 0.0s DeadEndRemovalTime, 2.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 2684 SDtfs, 2047 SDslu, 8262 SDs, 0 SdLazy, 3632 SolverSat, 629 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 1586 GetRequests, 1431 SyntacticMatches, 23 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1124occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.7s AbstIntTime, 5 AbstIntIterations, 1 AbstIntStrong, 0.9980845230826189 AbsIntWeakeningRatio, 0.8343558282208589 AbsIntAvgWeakeningVarsNumRemoved, 56.8159509202454 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 76 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 71 LocationsWithAnnotation, 2790 PreInvPairs, 2999 NumberOfFragments, 2239 HoareAnnotationTreeSize, 2790 FomulaSimplifications, 5074 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 71 FomulaSimplificationsInter, 15424 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 2213 NumberOfCodeBlocks, 2213 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2826 ConstructedInterpolants, 0 QuantifiedInterpolants, 593245 SizeOfPredicates, 17 NumberOfNonLiveVariables, 3544 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 21 InterpolantComputations, 11 PerfectInterpolantSequences, 520/592 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...