./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product45_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1dd9601a-85c3-4987-b9b2-bd757aa780a2/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1dd9601a-85c3-4987-b9b2-bd757aa780a2/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1dd9601a-85c3-4987-b9b2-bd757aa780a2/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1dd9601a-85c3-4987-b9b2-bd757aa780a2/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product45_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1dd9601a-85c3-4987-b9b2-bd757aa780a2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1dd9601a-85c3-4987-b9b2-bd757aa780a2/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c7c11659b56a65fd9b011a28c96b3117f33c316 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 06:10:22,427 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 06:10:22,428 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 06:10:22,434 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 06:10:22,434 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 06:10:22,435 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 06:10:22,435 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 06:10:22,436 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 06:10:22,437 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 06:10:22,437 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 06:10:22,438 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 06:10:22,438 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 06:10:22,438 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 06:10:22,439 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 06:10:22,439 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 06:10:22,440 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 06:10:22,440 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 06:10:22,441 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 06:10:22,442 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 06:10:22,443 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 06:10:22,444 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 06:10:22,444 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 06:10:22,445 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 06:10:22,445 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 06:10:22,446 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 06:10:22,446 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 06:10:22,447 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 06:10:22,447 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 06:10:22,447 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 06:10:22,448 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 06:10:22,448 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 06:10:22,449 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 06:10:22,449 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 06:10:22,449 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 06:10:22,449 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 06:10:22,450 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 06:10:22,450 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1dd9601a-85c3-4987-b9b2-bd757aa780a2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 06:10:22,457 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 06:10:22,457 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 06:10:22,458 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 06:10:22,458 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 06:10:22,458 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 06:10:22,458 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 06:10:22,458 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 06:10:22,458 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 06:10:22,458 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 06:10:22,459 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 06:10:22,459 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 06:10:22,459 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 06:10:22,459 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 06:10:22,459 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 06:10:22,460 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 06:10:22,460 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 06:10:22,460 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 06:10:22,460 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 06:10:22,460 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 06:10:22,460 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 06:10:22,460 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 06:10:22,460 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 06:10:22,461 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 06:10:22,461 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 06:10:22,461 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 06:10:22,461 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 06:10:22,461 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 06:10:22,461 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 06:10:22,461 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 06:10:22,461 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 06:10:22,462 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 06:10:22,462 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 06:10:22,462 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 06:10:22,462 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 06:10:22,462 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 06:10:22,462 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 06:10:22,462 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_1dd9601a-85c3-4987-b9b2-bd757aa780a2/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c7c11659b56a65fd9b011a28c96b3117f33c316 [2018-12-02 06:10:22,481 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 06:10:22,490 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 06:10:22,492 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 06:10:22,494 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 06:10:22,494 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 06:10:22,494 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1dd9601a-85c3-4987-b9b2-bd757aa780a2/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product45_true-unreach-call_false-termination.cil.c [2018-12-02 06:10:22,538 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1dd9601a-85c3-4987-b9b2-bd757aa780a2/bin-2019/utaipan/data/c689a8c68/ec70bf991c5147feb14bc9790308fb3b/FLAGbd1b8c322 [2018-12-02 06:10:23,006 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 06:10:23,006 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1dd9601a-85c3-4987-b9b2-bd757aa780a2/sv-benchmarks/c/product-lines/minepump_spec1_product45_true-unreach-call_false-termination.cil.c [2018-12-02 06:10:23,012 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1dd9601a-85c3-4987-b9b2-bd757aa780a2/bin-2019/utaipan/data/c689a8c68/ec70bf991c5147feb14bc9790308fb3b/FLAGbd1b8c322 [2018-12-02 06:10:23,516 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1dd9601a-85c3-4987-b9b2-bd757aa780a2/bin-2019/utaipan/data/c689a8c68/ec70bf991c5147feb14bc9790308fb3b [2018-12-02 06:10:23,518 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 06:10:23,519 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 06:10:23,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 06:10:23,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 06:10:23,522 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 06:10:23,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:10:23" (1/1) ... [2018-12-02 06:10:23,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a96ab85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:23, skipping insertion in model container [2018-12-02 06:10:23,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:10:23" (1/1) ... [2018-12-02 06:10:23,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 06:10:23,551 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 06:10:23,719 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 06:10:23,726 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 06:10:23,804 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 06:10:23,820 INFO L195 MainTranslator]: Completed translation [2018-12-02 06:10:23,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:23 WrapperNode [2018-12-02 06:10:23,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 06:10:23,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 06:10:23,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 06:10:23,821 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 06:10:23,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:23" (1/1) ... [2018-12-02 06:10:23,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:23" (1/1) ... [2018-12-02 06:10:23,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 06:10:23,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 06:10:23,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 06:10:23,840 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 06:10:23,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:23" (1/1) ... [2018-12-02 06:10:23,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:23" (1/1) ... [2018-12-02 06:10:23,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:23" (1/1) ... [2018-12-02 06:10:23,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:23" (1/1) ... [2018-12-02 06:10:23,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:23" (1/1) ... [2018-12-02 06:10:23,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:23" (1/1) ... [2018-12-02 06:10:23,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:23" (1/1) ... [2018-12-02 06:10:23,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 06:10:23,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 06:10:23,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 06:10:23,861 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 06:10:23,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1dd9601a-85c3-4987-b9b2-bd757aa780a2/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 [2018-12-02 06:10:23,893 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 06:10:23,894 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 06:10:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 06:10:23,894 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 06:10:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 06:10:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 06:10:23,894 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 06:10:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 06:10:23,894 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 06:10:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 06:10:23,894 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 06:10:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 06:10:23,894 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 06:10:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 06:10:23,894 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 06:10:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 06:10:23,895 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 06:10:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 06:10:23,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 06:10:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 06:10:23,895 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 06:10:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 06:10:23,895 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 06:10:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 06:10:23,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 06:10:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 06:10:23,895 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 06:10:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 06:10:23,895 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 06:10:23,896 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 06:10:23,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 06:10:23,896 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 06:10:23,896 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 06:10:23,896 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-12-02 06:10:23,896 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-12-02 06:10:23,896 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 06:10:23,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 06:10:23,896 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 06:10:23,896 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 06:10:23,896 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-02 06:10:23,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-02 06:10:23,896 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 06:10:23,896 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 06:10:23,896 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-02 06:10:23,897 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-02 06:10:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 06:10:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 06:10:23,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 06:10:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 06:10:23,897 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 06:10:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 06:10:23,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 06:10:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 06:10:23,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 06:10:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-02 06:10:23,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-02 06:10:24,200 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 06:10:24,200 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 06:10:24,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:10:24 BoogieIcfgContainer [2018-12-02 06:10:24,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 06:10:24,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 06:10:24,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 06:10:24,203 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 06:10:24,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:10:23" (1/3) ... [2018-12-02 06:10:24,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bcf9a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:10:24, skipping insertion in model container [2018-12-02 06:10:24,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:10:23" (2/3) ... [2018-12-02 06:10:24,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bcf9a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:10:24, skipping insertion in model container [2018-12-02 06:10:24,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:10:24" (3/3) ... [2018-12-02 06:10:24,205 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product45_true-unreach-call_false-termination.cil.c [2018-12-02 06:10:24,211 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 06:10:24,216 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 06:10:24,224 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 06:10:24,242 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 06:10:24,242 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 06:10:24,242 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 06:10:24,242 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 06:10:24,242 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 06:10:24,242 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 06:10:24,242 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 06:10:24,243 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 06:10:24,254 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2018-12-02 06:10:24,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-02 06:10:24,258 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:10:24,259 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] [2018-12-02 06:10:24,260 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:10:24,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:10:24,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1859376885, now seen corresponding path program 1 times [2018-12-02 06:10:24,265 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 06:10:24,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:24,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:10:24,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:24,293 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 06:10:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:10:24,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 06:10:24,439 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 06:10:24,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 06:10:24,439 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 06:10:24,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 06:10:24,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 06:10:24,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 06:10:24,451 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 2 states. [2018-12-02 06:10:24,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:10:24,472 INFO L93 Difference]: Finished difference Result 260 states and 325 transitions. [2018-12-02 06:10:24,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 06:10:24,473 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-02 06:10:24,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:10:24,480 INFO L225 Difference]: With dead ends: 260 [2018-12-02 06:10:24,480 INFO L226 Difference]: Without dead ends: 130 [2018-12-02 06:10:24,482 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 [2018-12-02 06:10:24,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-12-02 06:10:24,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-12-02 06:10:24,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-12-02 06:10:24,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 154 transitions. [2018-12-02 06:10:24,513 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 154 transitions. Word has length 46 [2018-12-02 06:10:24,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:10:24,513 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 154 transitions. [2018-12-02 06:10:24,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 06:10:24,513 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 154 transitions. [2018-12-02 06:10:24,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 06:10:24,515 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:10:24,515 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] [2018-12-02 06:10:24,515 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:10:24,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:10:24,515 INFO L82 PathProgramCache]: Analyzing trace with hash -816350, now seen corresponding path program 1 times [2018-12-02 06:10:24,516 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 06:10:24,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:24,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:10:24,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:24,516 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 06:10:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:10:24,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 06:10:24,563 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 06:10:24,563 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 06:10:24,563 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 06:10:24,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 06:10:24,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 06:10:24,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 06:10:24,564 INFO L87 Difference]: Start difference. First operand 130 states and 154 transitions. Second operand 3 states. [2018-12-02 06:10:24,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:10:24,577 INFO L93 Difference]: Finished difference Result 209 states and 247 transitions. [2018-12-02 06:10:24,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 06:10:24,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-02 06:10:24,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:10:24,578 INFO L225 Difference]: With dead ends: 209 [2018-12-02 06:10:24,578 INFO L226 Difference]: Without dead ends: 121 [2018-12-02 06:10:24,579 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 [2018-12-02 06:10:24,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-12-02 06:10:24,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-12-02 06:10:24,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-12-02 06:10:24,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 142 transitions. [2018-12-02 06:10:24,586 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 142 transitions. Word has length 47 [2018-12-02 06:10:24,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:10:24,587 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 142 transitions. [2018-12-02 06:10:24,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 06:10:24,587 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 142 transitions. [2018-12-02 06:10:24,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-02 06:10:24,587 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:10:24,588 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:10:24,588 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:10:24,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:10:24,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1070515485, now seen corresponding path program 1 times [2018-12-02 06:10:24,588 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 06:10:24,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:24,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:10:24,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:24,589 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 06:10:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:10:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 06:10:24,659 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 06:10:24,659 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 06:10:24,659 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 06:10:24,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 06:10:24,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 06:10:24,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 06:10:24,660 INFO L87 Difference]: Start difference. First operand 121 states and 142 transitions. Second operand 7 states. [2018-12-02 06:10:24,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:10:24,832 INFO L93 Difference]: Finished difference Result 218 states and 261 transitions. [2018-12-02 06:10:24,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 06:10:24,832 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-02 06:10:24,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:10:24,833 INFO L225 Difference]: With dead ends: 218 [2018-12-02 06:10:24,833 INFO L226 Difference]: Without dead ends: 121 [2018-12-02 06:10:24,834 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 06:10:24,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-12-02 06:10:24,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-12-02 06:10:24,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-12-02 06:10:24,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2018-12-02 06:10:24,842 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 141 transitions. Word has length 51 [2018-12-02 06:10:24,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:10:24,842 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 141 transitions. [2018-12-02 06:10:24,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 06:10:24,842 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 141 transitions. [2018-12-02 06:10:24,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-02 06:10:24,844 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:10:24,844 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:10:24,844 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:10:24,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:10:24,844 INFO L82 PathProgramCache]: Analyzing trace with hash -912181828, now seen corresponding path program 1 times [2018-12-02 06:10:24,844 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 06:10:24,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:24,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:10:24,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:24,845 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 06:10:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:10:24,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 06:10:24,918 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 06:10:24,918 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 06:10:24,919 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 06:10:24,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 06:10:24,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 06:10:24,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 06:10:24,920 INFO L87 Difference]: Start difference. First operand 121 states and 141 transitions. Second operand 5 states. [2018-12-02 06:10:25,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:10:25,201 INFO L93 Difference]: Finished difference Result 319 states and 386 transitions. [2018-12-02 06:10:25,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 06:10:25,202 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2018-12-02 06:10:25,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:10:25,204 INFO L225 Difference]: With dead ends: 319 [2018-12-02 06:10:25,204 INFO L226 Difference]: Without dead ends: 222 [2018-12-02 06:10:25,205 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-02 06:10:25,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-12-02 06:10:25,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 204. [2018-12-02 06:10:25,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-12-02 06:10:25,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 233 transitions. [2018-12-02 06:10:25,227 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 233 transitions. Word has length 64 [2018-12-02 06:10:25,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:10:25,228 INFO L480 AbstractCegarLoop]: Abstraction has 204 states and 233 transitions. [2018-12-02 06:10:25,228 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 06:10:25,228 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 233 transitions. [2018-12-02 06:10:25,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-02 06:10:25,230 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:10:25,230 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:10:25,230 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:10:25,230 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:10:25,230 INFO L82 PathProgramCache]: Analyzing trace with hash -988770391, now seen corresponding path program 1 times [2018-12-02 06:10:25,231 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 06:10:25,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:25,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:10:25,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:25,232 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 06:10:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:10:25,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 06:10:25,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 06:10:25,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 06:10:25,303 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 06:10:25,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 06:10:25,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 06:10:25,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 06:10:25,303 INFO L87 Difference]: Start difference. First operand 204 states and 233 transitions. Second operand 6 states. [2018-12-02 06:10:25,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:10:25,416 INFO L93 Difference]: Finished difference Result 549 states and 649 transitions. [2018-12-02 06:10:25,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 06:10:25,417 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2018-12-02 06:10:25,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:10:25,420 INFO L225 Difference]: With dead ends: 549 [2018-12-02 06:10:25,420 INFO L226 Difference]: Without dead ends: 369 [2018-12-02 06:10:25,421 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-02 06:10:25,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2018-12-02 06:10:25,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 363. [2018-12-02 06:10:25,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2018-12-02 06:10:25,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 416 transitions. [2018-12-02 06:10:25,450 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 416 transitions. Word has length 78 [2018-12-02 06:10:25,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:10:25,451 INFO L480 AbstractCegarLoop]: Abstraction has 363 states and 416 transitions. [2018-12-02 06:10:25,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 06:10:25,451 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 416 transitions. [2018-12-02 06:10:25,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-12-02 06:10:25,453 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:10:25,453 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:10:25,453 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:10:25,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:10:25,453 INFO L82 PathProgramCache]: Analyzing trace with hash 610145221, now seen corresponding path program 1 times [2018-12-02 06:10:25,454 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 06:10:25,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:25,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:10:25,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:25,455 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 06:10:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:10:25,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 06:10:25,542 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 06:10:25,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 06:10:25,542 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 06:10:25,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 06:10:25,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 06:10:25,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 06:10:25,543 INFO L87 Difference]: Start difference. First operand 363 states and 416 transitions. Second operand 7 states. [2018-12-02 06:10:25,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:10:25,824 INFO L93 Difference]: Finished difference Result 396 states and 466 transitions. [2018-12-02 06:10:25,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 06:10:25,825 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2018-12-02 06:10:25,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:10:25,826 INFO L225 Difference]: With dead ends: 396 [2018-12-02 06:10:25,826 INFO L226 Difference]: Without dead ends: 393 [2018-12-02 06:10:25,827 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-02 06:10:25,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2018-12-02 06:10:25,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 363. [2018-12-02 06:10:25,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2018-12-02 06:10:25,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 415 transitions. [2018-12-02 06:10:25,840 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 415 transitions. Word has length 82 [2018-12-02 06:10:25,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:10:25,840 INFO L480 AbstractCegarLoop]: Abstraction has 363 states and 415 transitions. [2018-12-02 06:10:25,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 06:10:25,840 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 415 transitions. [2018-12-02 06:10:25,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-12-02 06:10:25,841 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:10:25,841 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:10:25,841 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:10:25,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:10:25,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1887685164, now seen corresponding path program 1 times [2018-12-02 06:10:25,842 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 06:10:25,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:25,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:10:25,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:25,842 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 06:10:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:10:25,874 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 06:10:25,874 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 06:10:25,874 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 06:10:25,874 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 06:10:25,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 06:10:25,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 06:10:25,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 06:10:25,875 INFO L87 Difference]: Start difference. First operand 363 states and 415 transitions. Second operand 6 states. [2018-12-02 06:10:25,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:10:25,896 INFO L93 Difference]: Finished difference Result 716 states and 838 transitions. [2018-12-02 06:10:25,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 06:10:25,897 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2018-12-02 06:10:25,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:10:25,898 INFO L225 Difference]: With dead ends: 716 [2018-12-02 06:10:25,898 INFO L226 Difference]: Without dead ends: 377 [2018-12-02 06:10:25,899 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-02 06:10:25,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2018-12-02 06:10:25,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 373. [2018-12-02 06:10:25,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2018-12-02 06:10:25,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 425 transitions. [2018-12-02 06:10:25,910 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 425 transitions. Word has length 98 [2018-12-02 06:10:25,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:10:25,911 INFO L480 AbstractCegarLoop]: Abstraction has 373 states and 425 transitions. [2018-12-02 06:10:25,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 06:10:25,911 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 425 transitions. [2018-12-02 06:10:25,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-12-02 06:10:25,911 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:10:25,912 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:10:25,912 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:10:25,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:10:25,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1513795794, now seen corresponding path program 1 times [2018-12-02 06:10:25,912 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 06:10:25,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:25,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:10:25,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:25,913 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 06:10:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:10:25,966 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 06:10:25,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 06:10:25,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 06:10:25,967 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 06:10:25,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 06:10:25,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 06:10:25,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 06:10:25,967 INFO L87 Difference]: Start difference. First operand 373 states and 425 transitions. Second operand 8 states. [2018-12-02 06:10:25,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:10:25,999 INFO L93 Difference]: Finished difference Result 736 states and 860 transitions. [2018-12-02 06:10:25,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 06:10:25,999 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2018-12-02 06:10:25,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:10:26,000 INFO L225 Difference]: With dead ends: 736 [2018-12-02 06:10:26,000 INFO L226 Difference]: Without dead ends: 387 [2018-12-02 06:10:26,001 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 06:10:26,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2018-12-02 06:10:26,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 381. [2018-12-02 06:10:26,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-12-02 06:10:26,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 433 transitions. [2018-12-02 06:10:26,012 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 433 transitions. Word has length 98 [2018-12-02 06:10:26,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:10:26,013 INFO L480 AbstractCegarLoop]: Abstraction has 381 states and 433 transitions. [2018-12-02 06:10:26,013 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 06:10:26,013 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 433 transitions. [2018-12-02 06:10:26,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-12-02 06:10:26,014 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:10:26,014 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:10:26,014 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:10:26,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:10:26,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1521555153, now seen corresponding path program 1 times [2018-12-02 06:10:26,014 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 06:10:26,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:26,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:10:26,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:26,015 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 06:10:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:10:26,059 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 06:10:26,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 06:10:26,060 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 06:10:26,060 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 06:10:26,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 06:10:26,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 06:10:26,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 06:10:26,060 INFO L87 Difference]: Start difference. First operand 381 states and 433 transitions. Second operand 4 states. [2018-12-02 06:10:26,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:10:26,182 INFO L93 Difference]: Finished difference Result 1123 states and 1346 transitions. [2018-12-02 06:10:26,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 06:10:26,182 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2018-12-02 06:10:26,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:10:26,184 INFO L225 Difference]: With dead ends: 1123 [2018-12-02 06:10:26,184 INFO L226 Difference]: Without dead ends: 766 [2018-12-02 06:10:26,185 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 06:10:26,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2018-12-02 06:10:26,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 751. [2018-12-02 06:10:26,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2018-12-02 06:10:26,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 881 transitions. [2018-12-02 06:10:26,207 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 881 transitions. Word has length 98 [2018-12-02 06:10:26,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:10:26,207 INFO L480 AbstractCegarLoop]: Abstraction has 751 states and 881 transitions. [2018-12-02 06:10:26,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 06:10:26,207 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 881 transitions. [2018-12-02 06:10:26,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-02 06:10:26,208 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:10:26,208 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:10:26,208 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:10:26,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:10:26,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1343532233, now seen corresponding path program 1 times [2018-12-02 06:10:26,209 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 06:10:26,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:26,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:10:26,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:26,209 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 06:10:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:10:26,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 06:10:26,290 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 06:10:26,290 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 06:10:26,291 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 103 with the following transitions: [2018-12-02 06:10:26,292 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [26], [36], [37], [38], [39], [42], [44], [45], [48], [63], [66], [67], [71], [72], [74], [83], [87], [91], [94], [99], [102], [107], [110], [125], [126], [127], [128], [129], [131], [136], [139], [140], [142], [147], [149], [150], [155], [157], [163], [167], [200], [201], [209], [215], [219], [220], [223], [225], [228], [230], [233], [242], [243], [244], [245], [246], [247], [248], [249], [250], [252], [253], [254], [255], [260], [262], [263], [270], [271], [272], [273], [274], [275], [276], [280], [281], [282], [283], [284], [285], [288], [289], [290], [296], [297], [298], [300], [301], [302], [303], [304] [2018-12-02 06:10:26,315 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 06:10:26,315 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 06:10:26,620 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 06:10:26,621 INFO L272 AbstractInterpreter]: Visited 100 different actions 102 times. Never merged. Never widened. Performed 3240 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3240 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-02 06:10:26,626 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:10:26,627 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 06:10:26,627 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 06:10:26,627 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1dd9601a-85c3-4987-b9b2-bd757aa780a2/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 [2018-12-02 06:10:26,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:10:26,634 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 06:10:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:10:26,727 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:10:26,859 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 06:10:26,859 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 06:10:27,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 06:10:27,403 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 06:10:27,404 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-02 06:10:27,404 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 06:10:27,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 06:10:27,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 06:10:27,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-02 06:10:27,404 INFO L87 Difference]: Start difference. First operand 751 states and 881 transitions. Second operand 8 states. [2018-12-02 06:10:27,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:10:27,564 INFO L93 Difference]: Finished difference Result 1450 states and 1712 transitions. [2018-12-02 06:10:27,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 06:10:27,564 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2018-12-02 06:10:27,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:10:27,566 INFO L225 Difference]: With dead ends: 1450 [2018-12-02 06:10:27,566 INFO L226 Difference]: Without dead ends: 723 [2018-12-02 06:10:27,568 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 187 SyntacticMatches, 7 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-02 06:10:27,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2018-12-02 06:10:27,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 723. [2018-12-02 06:10:27,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2018-12-02 06:10:27,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 835 transitions. [2018-12-02 06:10:27,593 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 835 transitions. Word has length 102 [2018-12-02 06:10:27,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:10:27,593 INFO L480 AbstractCegarLoop]: Abstraction has 723 states and 835 transitions. [2018-12-02 06:10:27,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 06:10:27,593 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 835 transitions. [2018-12-02 06:10:27,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-12-02 06:10:27,595 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:10:27,595 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:10:27,596 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:10:27,596 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:10:27,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1673377843, now seen corresponding path program 1 times [2018-12-02 06:10:27,596 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 06:10:27,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:27,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:10:27,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:27,597 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 06:10:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:10:27,651 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-12-02 06:10:27,651 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 06:10:27,651 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 06:10:27,651 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2018-12-02 06:10:27,651 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [26], [33], [36], [37], [38], [39], [42], [44], [45], [48], [51], [53], [59], [63], [66], [67], [71], [72], [73], [74], [83], [87], [91], [94], [99], [102], [105], [107], [110], [125], [126], [127], [128], [129], [131], [136], [139], [140], [142], [147], [149], [150], [155], [157], [160], [163], [167], [173], [200], [201], [204], [208], [209], [215], [219], [220], [223], [225], [228], [230], [233], [239], [241], [242], [243], [244], [245], [246], [247], [248], [249], [250], [252], [253], [254], [255], [258], [259], [260], [262], [263], [264], [265], [268], [269], [270], [271], [272], [273], [274], [275], [276], [277], [280], [281], [282], [283], [284], [285], [286], [287], [288], [289], [290], [291], [296], [297], [298], [300], [301], [302], [303], [304] [2018-12-02 06:10:27,655 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 06:10:27,655 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 06:10:28,163 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 06:10:28,163 INFO L272 AbstractInterpreter]: Visited 109 different actions 191 times. Merged at 8 different actions 13 times. Never widened. Performed 10670 root evaluator evaluations with a maximum evaluation depth of 3. Performed 10670 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 1 different actions. Largest state had 132 variables. [2018-12-02 06:10:28,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:10:28,166 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 06:10:28,167 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 06:10:28,167 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1dd9601a-85c3-4987-b9b2-bd757aa780a2/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 [2018-12-02 06:10:28,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:10:28,176 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 06:10:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:10:28,246 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:10:28,261 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 06:10:28,262 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 06:10:28,403 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-12-02 06:10:28,418 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 06:10:28,418 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 7 [2018-12-02 06:10:28,419 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 06:10:28,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 06:10:28,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 06:10:28,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-12-02 06:10:28,419 INFO L87 Difference]: Start difference. First operand 723 states and 835 transitions. Second operand 5 states. [2018-12-02 06:10:28,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:10:28,701 INFO L93 Difference]: Finished difference Result 1512 states and 1842 transitions. [2018-12-02 06:10:28,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 06:10:28,701 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2018-12-02 06:10:28,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:10:28,703 INFO L225 Difference]: With dead ends: 1512 [2018-12-02 06:10:28,703 INFO L226 Difference]: Without dead ends: 933 [2018-12-02 06:10:28,704 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 314 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-12-02 06:10:28,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2018-12-02 06:10:28,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 871. [2018-12-02 06:10:28,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 871 states. [2018-12-02 06:10:28,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1028 transitions. [2018-12-02 06:10:28,732 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1028 transitions. Word has length 157 [2018-12-02 06:10:28,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:10:28,732 INFO L480 AbstractCegarLoop]: Abstraction has 871 states and 1028 transitions. [2018-12-02 06:10:28,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 06:10:28,732 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1028 transitions. [2018-12-02 06:10:28,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-12-02 06:10:28,734 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:10:28,734 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:10:28,734 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:10:28,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:10:28,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1604124685, now seen corresponding path program 1 times [2018-12-02 06:10:28,734 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 06:10:28,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:28,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:10:28,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:10:28,735 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 06:10:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:10:28,819 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-02 06:10:28,819 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 06:10:28,819 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 06:10:28,819 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 154 with the following transitions: [2018-12-02 06:10:28,820 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [26], [33], [36], [37], [38], [39], [42], [44], [45], [48], [51], [53], [59], [63], [66], [67], [71], [72], [73], [74], [83], [87], [91], [94], [97], [99], [102], [105], [107], [110], [125], [126], [127], [128], [129], [131], [136], [139], [140], [142], [147], [149], [150], [155], [157], [160], [163], [167], [173], [200], [201], [204], [208], [209], [215], [219], [220], [223], [225], [228], [230], [233], [239], [241], [242], [243], [244], [245], [246], [247], [248], [249], [250], [252], [253], [254], [255], [258], [259], [260], [262], [263], [264], [265], [268], [269], [270], [271], [272], [273], [274], [275], [276], [277], [280], [281], [282], [283], [284], [285], [286], [287], [288], [289], [290], [291], [296], [297], [298], [300], [301], [302], [303], [304] [2018-12-02 06:10:28,823 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 06:10:28,823 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 06:10:30,091 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 06:10:30,091 INFO L272 AbstractInterpreter]: Visited 123 different actions 852 times. Merged at 17 different actions 67 times. Never widened. Performed 36070 root evaluator evaluations with a maximum evaluation depth of 3. Performed 36070 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 17 fixpoints after 6 different actions. Largest state had 132 variables. [2018-12-02 06:10:30,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:10:30,093 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 06:10:30,093 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 06:10:30,093 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1dd9601a-85c3-4987-b9b2-bd757aa780a2/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 [2018-12-02 06:10:30,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:10:30,099 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 06:10:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:10:30,158 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:10:30,265 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-02 06:10:30,265 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 06:10:30,495 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-02 06:10:30,510 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 06:10:30,510 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-02 06:10:30,510 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 06:10:30,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 06:10:30,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 06:10:30,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-02 06:10:30,511 INFO L87 Difference]: Start difference. First operand 871 states and 1028 transitions. Second operand 8 states. [2018-12-02 06:10:30,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:10:30,635 INFO L93 Difference]: Finished difference Result 1509 states and 1807 transitions. [2018-12-02 06:10:30,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 06:10:30,636 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2018-12-02 06:10:30,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:10:30,636 INFO L225 Difference]: With dead ends: 1509 [2018-12-02 06:10:30,637 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 06:10:30,639 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 291 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-02 06:10:30,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 06:10:30,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 06:10:30,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 06:10:30,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 06:10:30,640 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 153 [2018-12-02 06:10:30,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:10:30,640 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 06:10:30,640 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 06:10:30,640 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 06:10:30,640 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 06:10:30,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 06:10:30,788 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,791 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,850 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,851 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,851 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,851 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,852 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,852 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,853 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,853 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,854 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,878 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,878 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,879 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,879 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,879 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,881 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,881 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,897 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,898 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,898 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,898 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,899 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,899 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,900 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,900 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:30,901 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 06:10:31,794 WARN L180 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2018-12-02 06:10:32,464 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 33 [2018-12-02 06:10:32,465 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 297 303) the Hoare annotation is: true [2018-12-02 06:10:32,465 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 297 303) no Hoare annotation was computed. [2018-12-02 06:10:32,465 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 304 312) no Hoare annotation was computed. [2018-12-02 06:10:32,466 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 304 312) the Hoare annotation is: true [2018-12-02 06:10:32,466 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 304 312) no Hoare annotation was computed. [2018-12-02 06:10:32,466 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 255 277) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 06:10:32,466 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 255 277) no Hoare annotation was computed. [2018-12-02 06:10:32,466 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 255 277) no Hoare annotation was computed. [2018-12-02 06:10:32,466 INFO L444 ceAbstractionStarter]: At program point L267(line 267) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= main_~tmp~1 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-02 06:10:32,466 INFO L444 ceAbstractionStarter]: At program point L267-1(line 267) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= main_~tmp~1 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-02 06:10:32,466 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 272) no Hoare annotation was computed. [2018-12-02 06:10:32,466 INFO L448 ceAbstractionStarter]: For program point L265-1(lines 265 272) no Hoare annotation was computed. [2018-12-02 06:10:32,466 INFO L448 ceAbstractionStarter]: For program point L263(line 263) no Hoare annotation was computed. [2018-12-02 06:10:32,466 INFO L444 ceAbstractionStarter]: At program point L262(line 262) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 06:10:32,466 INFO L444 ceAbstractionStarter]: At program point L261(line 261) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 06:10:32,467 INFO L444 ceAbstractionStarter]: At program point L261-1(line 261) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 06:10:32,467 INFO L444 ceAbstractionStarter]: At program point L801(line 801) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1) (or (< ~methaneLevelCritical~0 1) .cse2 .cse0) (or .cse2 .cse0 .cse1))) [2018-12-02 06:10:32,467 INFO L448 ceAbstractionStarter]: For program point L801-1(lines 782 806) no Hoare annotation was computed. [2018-12-02 06:10:32,467 INFO L444 ceAbstractionStarter]: At program point L796(line 796) the Hoare annotation is: (let ((.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse3 (and (= 0 processEnvironment__wrappee__methaneQuery_~tmp~6) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 (< ~methaneLevelCritical~0 1) (not .cse2) .cse0) (or .cse3 .cse0 .cse1))) [2018-12-02 06:10:32,467 INFO L444 ceAbstractionStarter]: At program point L792(line 792) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (and .cse0 .cse1) (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse2) (or (and .cse0 (= 0 ~pumpRunning~0) .cse1) .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 06:10:32,467 INFO L448 ceAbstractionStarter]: For program point L790(lines 790 798) no Hoare annotation was computed. [2018-12-02 06:10:32,467 INFO L444 ceAbstractionStarter]: At program point L788(line 788) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or (< ~methaneLevelCritical~0 1) (not .cse2) .cse3 .cse0))) [2018-12-02 06:10:32,467 INFO L448 ceAbstractionStarter]: For program point L788-1(line 788) no Hoare annotation was computed. [2018-12-02 06:10:32,467 INFO L448 ceAbstractionStarter]: For program point L786(lines 786 803) no Hoare annotation was computed. [2018-12-02 06:10:32,467 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 782 806) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-12-02 06:10:32,467 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 782 806) no Hoare annotation was computed. [2018-12-02 06:10:32,467 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 877 885) no Hoare annotation was computed. [2018-12-02 06:10:32,467 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 877 885) the Hoare annotation is: true [2018-12-02 06:10:32,468 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 877 885) no Hoare annotation was computed. [2018-12-02 06:10:32,468 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 290 296) no Hoare annotation was computed. [2018-12-02 06:10:32,468 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 290 296) the Hoare annotation is: true [2018-12-02 06:10:32,468 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 242 251) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 06:10:32,468 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 242 251) no Hoare annotation was computed. [2018-12-02 06:10:32,468 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 242 251) no Hoare annotation was computed. [2018-12-02 06:10:32,468 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 866 876) the Hoare annotation is: true [2018-12-02 06:10:32,468 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 866 876) no Hoare annotation was computed. [2018-12-02 06:10:32,468 INFO L451 ceAbstractionStarter]: At program point L871(line 871) the Hoare annotation is: true [2018-12-02 06:10:32,468 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 866 876) no Hoare annotation was computed. [2018-12-02 06:10:32,468 INFO L448 ceAbstractionStarter]: For program point L871-1(line 871) no Hoare annotation was computed. [2018-12-02 06:10:32,468 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 858 865) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2018-12-02 06:10:32,468 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 858 865) no Hoare annotation was computed. [2018-12-02 06:10:32,468 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 858 865) no Hoare annotation was computed. [2018-12-02 06:10:32,468 INFO L444 ceAbstractionStarter]: At program point L827(line 827) the Hoare annotation is: (let ((.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse1 .cse3 .cse2) (or .cse4 .cse1 .cse3) (or .cse0 .cse4 .cse1))) [2018-12-02 06:10:32,469 INFO L448 ceAbstractionStarter]: For program point L827-1(lines 808 832) no Hoare annotation was computed. [2018-12-02 06:10:32,469 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 808 832) no Hoare annotation was computed. [2018-12-02 06:10:32,469 INFO L444 ceAbstractionStarter]: At program point L822(line 822) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (< ~methaneLevelCritical~0 1) .cse0))) [2018-12-02 06:10:32,469 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 808 832) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1))) [2018-12-02 06:10:32,469 INFO L444 ceAbstractionStarter]: At program point L818(line 818) the Hoare annotation is: (let ((.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse1) (or .cse4 .cse1 .cse2) (or .cse3 .cse1 (and (<= ~methaneLevelCritical~0 processEnvironment_~tmp~7) .cse0)))) [2018-12-02 06:10:32,469 INFO L448 ceAbstractionStarter]: For program point L816(lines 816 824) no Hoare annotation was computed. [2018-12-02 06:10:32,469 INFO L444 ceAbstractionStarter]: At program point L814(line 814) the Hoare annotation is: (let ((.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse1) (or .cse4 .cse1 .cse2) (or .cse3 .cse0 .cse1))) [2018-12-02 06:10:32,470 INFO L448 ceAbstractionStarter]: For program point L814-1(line 814) no Hoare annotation was computed. [2018-12-02 06:10:32,470 INFO L448 ceAbstractionStarter]: For program point L812(lines 812 829) no Hoare annotation was computed. [2018-12-02 06:10:32,470 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 126 139) no Hoare annotation was computed. [2018-12-02 06:10:32,470 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 126 139) the Hoare annotation is: true [2018-12-02 06:10:32,470 INFO L448 ceAbstractionStarter]: For program point L130(lines 130 136) no Hoare annotation was computed. [2018-12-02 06:10:32,470 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 126 139) no Hoare annotation was computed. [2018-12-02 06:10:32,470 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 774 780) no Hoare annotation was computed. [2018-12-02 06:10:32,470 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 774 780) the Hoare annotation is: true [2018-12-02 06:10:32,470 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 680 743) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 06:10:32,471 INFO L444 ceAbstractionStarter]: At program point L702(line 702) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) .cse0) (not (= ~systemActive~0 1)) (and (and (= 0 ~pumpRunning~0) .cse0) (<= 1 ~methaneLevelCritical~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 06:10:32,471 INFO L444 ceAbstractionStarter]: At program point L733(lines 690 735) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (<= 1 ~methaneLevelCritical~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0))) [2018-12-02 06:10:32,471 INFO L448 ceAbstractionStarter]: For program point L700(lines 700 706) no Hoare annotation was computed. [2018-12-02 06:10:32,471 INFO L448 ceAbstractionStarter]: For program point L700-1(lines 700 706) no Hoare annotation was computed. [2018-12-02 06:10:32,471 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 680 743) no Hoare annotation was computed. [2018-12-02 06:10:32,471 INFO L448 ceAbstractionStarter]: For program point L692(lines 692 696) no Hoare annotation was computed. [2018-12-02 06:10:32,471 INFO L444 ceAbstractionStarter]: At program point L736(lines 689 737) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 06:10:32,471 INFO L448 ceAbstractionStarter]: For program point L726(lines 726 730) no Hoare annotation was computed. [2018-12-02 06:10:32,471 INFO L444 ceAbstractionStarter]: At program point L726-2(lines 720 731) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~methaneLevelCritical~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0))) [2018-12-02 06:10:32,472 INFO L448 ceAbstractionStarter]: For program point L691(lines 690 735) no Hoare annotation was computed. [2018-12-02 06:10:32,472 INFO L448 ceAbstractionStarter]: For program point L720(lines 720 731) no Hoare annotation was computed. [2018-12-02 06:10:32,472 INFO L444 ceAbstractionStarter]: At program point L712(line 712) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (<= 1 ~methaneLevelCritical~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0))) [2018-12-02 06:10:32,472 INFO L448 ceAbstractionStarter]: For program point L710(lines 710 716) no Hoare annotation was computed. [2018-12-02 06:10:32,472 INFO L448 ceAbstractionStarter]: For program point L710-1(lines 710 716) no Hoare annotation was computed. [2018-12-02 06:10:32,472 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 680 743) no Hoare annotation was computed. [2018-12-02 06:10:32,472 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__highWaterSensorENTRY(lines 833 840) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) [2018-12-02 06:10:32,472 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorEXIT(lines 833 840) no Hoare annotation was computed. [2018-12-02 06:10:32,472 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorFINAL(lines 833 840) no Hoare annotation was computed. [2018-12-02 06:10:32,473 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 06:10:32,473 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-02 06:10:32,473 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 06:10:32,473 INFO L448 ceAbstractionStarter]: For program point L848(lines 848 854) no Hoare annotation was computed. [2018-12-02 06:10:32,473 INFO L444 ceAbstractionStarter]: At program point L846(line 846) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 2)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or .cse1 (< ~methaneLevelCritical~0 1) .cse0 .cse2 .cse3))) [2018-12-02 06:10:32,473 INFO L448 ceAbstractionStarter]: For program point L846-1(line 846) no Hoare annotation was computed. [2018-12-02 06:10:32,473 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 841 857) no Hoare annotation was computed. [2018-12-02 06:10:32,473 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 841 857) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 2)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or .cse1 (< ~methaneLevelCritical~0 1) .cse0 .cse2 .cse3))) [2018-12-02 06:10:32,474 INFO L444 ceAbstractionStarter]: At program point L852(line 852) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2018-12-02 06:10:32,474 INFO L448 ceAbstractionStarter]: For program point L852-1(lines 841 857) no Hoare annotation was computed. [2018-12-02 06:10:32,474 INFO L451 ceAbstractionStarter]: At program point L929(line 929) the Hoare annotation is: true [2018-12-02 06:10:32,474 INFO L448 ceAbstractionStarter]: For program point L931-2(lines 931 935) no Hoare annotation was computed. [2018-12-02 06:10:32,474 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 922 940) no Hoare annotation was computed. [2018-12-02 06:10:32,474 INFO L448 ceAbstractionStarter]: For program point L929-1(line 929) no Hoare annotation was computed. [2018-12-02 06:10:32,474 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 922 940) the Hoare annotation is: true [2018-12-02 06:10:32,474 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 922 940) no Hoare annotation was computed. [2018-12-02 06:10:32,474 INFO L448 ceAbstractionStarter]: For program point L931(lines 931 935) no Hoare annotation was computed. [2018-12-02 06:10:32,474 INFO L448 ceAbstractionStarter]: For program point L77-1(lines 73 84) no Hoare annotation was computed. [2018-12-02 06:10:32,475 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 73 84) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= |old(~methaneLevelCritical~0)| 0)) (= 0 ~methaneLevelCritical~0)) (or (< |old(~methaneLevelCritical~0)| 1) (not (= 0 ~pumpRunning~0)) (<= 1 ~methaneLevelCritical~0) .cse0))) [2018-12-02 06:10:32,475 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 73 84) no Hoare annotation was computed. [2018-12-02 06:10:32,475 INFO L444 ceAbstractionStarter]: At program point L763(line 763) the Hoare annotation is: (let ((.cse6 (= |old(~waterLevel~0)| 1)) (.cse8 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse5 (and .cse8 (<= 1 ~methaneLevelCritical~0) .cse0)) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse10 (not .cse6)) (.cse9 (= 1 ~waterLevel~0)) (.cse7 (not (= ~waterLevel~0 1))) (.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 (and .cse4 .cse0) .cse5 .cse1) (or .cse3 .cse6 .cse7 .cse5 .cse1) (or .cse8 .cse9 .cse1 .cse10 .cse2) (or .cse3 .cse8 .cse1 .cse10 .cse9) (or .cse6 (and .cse7 .cse4) .cse8 .cse1 .cse2)))) [2018-12-02 06:10:32,475 INFO L444 ceAbstractionStarter]: At program point L761(lines 761 767) the Hoare annotation is: (let ((.cse9 (= |old(~waterLevel~0)| 1))) (let ((.cse5 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= 1 ~waterLevel~0)) (.cse4 (not .cse9)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse7 (= 0 ~pumpRunning~0)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse10 (not (= ~waterLevel~0 1))) (.cse8 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (let ((.cse6 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or (and .cse5 .cse6) (and (<= 2 ~waterLevel~0) .cse5) (and .cse1 .cse7) .cse3 (and .cse1 .cse6) .cse8)) (or .cse0 .cse9 .cse1 (and .cse10 .cse5) .cse3) (or .cse1 .cse3 .cse2 .cse4 .cse8) (or .cse0 .cse7 .cse3) (or .cse9 .cse1 .cse3 .cse10 .cse8)))) [2018-12-02 06:10:32,475 INFO L444 ceAbstractionStarter]: At program point L756(line 756) the Hoare annotation is: (let ((.cse0 (and (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1))) [2018-12-02 06:10:32,475 INFO L448 ceAbstractionStarter]: For program point L754(lines 753 772) no Hoare annotation was computed. [2018-12-02 06:10:32,476 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 750 773) the Hoare annotation is: (let ((.cse3 (= |old(~waterLevel~0)| 1))) (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse7 (not .cse3)) (.cse6 (= 1 ~waterLevel~0)) (.cse4 (not (= ~waterLevel~0 1))) (.cse2 (not (= ~systemActive~0 1))) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse1 (and (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse4 .cse2) (or .cse5 .cse6 .cse2 .cse7 .cse8) (or .cse0 .cse5 .cse2 .cse7 .cse6) (or .cse3 .cse2 .cse4 .cse8) (or .cse2 .cse8 .cse1)))) [2018-12-02 06:10:32,476 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 750 773) no Hoare annotation was computed. [2018-12-02 06:10:32,476 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 750 773) no Hoare annotation was computed. [2018-12-02 06:10:32,476 INFO L448 ceAbstractionStarter]: For program point L193(lines 193 197) no Hoare annotation was computed. [2018-12-02 06:10:32,476 INFO L451 ceAbstractionStarter]: At program point L193-1(lines 193 197) the Hoare annotation is: true [2018-12-02 06:10:32,476 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 179 208) no Hoare annotation was computed. [2018-12-02 06:10:32,476 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-12-02 06:10:32,476 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 179 208) the Hoare annotation is: true [2018-12-02 06:10:32,476 INFO L451 ceAbstractionStarter]: At program point L189-2(lines 189 203) the Hoare annotation is: true [2018-12-02 06:10:32,476 INFO L451 ceAbstractionStarter]: At program point L185(line 185) the Hoare annotation is: true [2018-12-02 06:10:32,477 INFO L448 ceAbstractionStarter]: For program point L185-1(line 185) no Hoare annotation was computed. [2018-12-02 06:10:32,477 INFO L451 ceAbstractionStarter]: At program point L204(lines 179 208) the Hoare annotation is: true [2018-12-02 06:10:32,477 INFO L448 ceAbstractionStarter]: For program point L200(line 200) no Hoare annotation was computed. [2018-12-02 06:10:32,477 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 85 93) the Hoare annotation is: true [2018-12-02 06:10:32,477 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 85 93) no Hoare annotation was computed. [2018-12-02 06:10:32,477 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 85 93) no Hoare annotation was computed. [2018-12-02 06:10:32,477 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 49 60) the Hoare annotation is: (let ((.cse0 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= 0 ~pumpRunning~0))) (and (or .cse0 (or .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2)) (or (< ~methaneLevelCritical~0 1) .cse0 (or .cse1 .cse2)))) [2018-12-02 06:10:32,477 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 49 60) no Hoare annotation was computed. [2018-12-02 06:10:32,477 INFO L448 ceAbstractionStarter]: For program point L53-1(lines 49 60) no Hoare annotation was computed. [2018-12-02 06:10:32,477 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 234 240) no Hoare annotation was computed. [2018-12-02 06:10:32,478 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 234 240) the Hoare annotation is: true [2018-12-02 06:10:32,478 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 06:10:32,478 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1)) [2018-12-02 06:10:32,478 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 06:10:32,478 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 06:10:32,478 INFO L448 ceAbstractionStarter]: For program point L65-1(lines 61 72) no Hoare annotation was computed. [2018-12-02 06:10:32,478 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 61 72) no Hoare annotation was computed. [2018-12-02 06:10:32,478 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 61 72) the Hoare annotation is: (let ((.cse3 (not (= |old(~waterLevel~0)| 1))) (.cse1 (= 1 ~waterLevel~0)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (< ~methaneLevelCritical~0 1)) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1))) (.cse6 (<= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse2 .cse3 .cse1) (or (or .cse2 .cse4) .cse6) (or .cse5 (or .cse0 .cse2) .cse6))) [2018-12-02 06:10:32,478 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 141 148) no Hoare annotation was computed. [2018-12-02 06:10:32,479 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 141 148) the Hoare annotation is: true [2018-12-02 06:10:32,479 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 141 148) no Hoare annotation was computed. [2018-12-02 06:10:32,479 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2018-12-02 06:10:32,479 INFO L444 ceAbstractionStarter]: At program point L161(line 161) the Hoare annotation is: (or (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) [2018-12-02 06:10:32,479 INFO L448 ceAbstractionStarter]: For program point L161-1(line 161) no Hoare annotation was computed. [2018-12-02 06:10:32,479 INFO L448 ceAbstractionStarter]: For program point L159(lines 159 172) no Hoare annotation was computed. [2018-12-02 06:10:32,479 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 151 175) no Hoare annotation was computed. [2018-12-02 06:10:32,479 INFO L451 ceAbstractionStarter]: At program point L157(line 157) the Hoare annotation is: true [2018-12-02 06:10:32,479 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 151 175) the Hoare annotation is: true [2018-12-02 06:10:32,479 INFO L448 ceAbstractionStarter]: For program point L157-1(line 157) no Hoare annotation was computed. [2018-12-02 06:10:32,480 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification1_spec__1EXIT(lines 151 175) no Hoare annotation was computed. [2018-12-02 06:10:32,480 INFO L444 ceAbstractionStarter]: At program point L165(line 165) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 ~pumpRunning~0)) .cse0) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 06:10:32,480 INFO L448 ceAbstractionStarter]: For program point L163(lines 163 169) no Hoare annotation was computed. [2018-12-02 06:10:32,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:10:32 BoogieIcfgContainer [2018-12-02 06:10:32,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 06:10:32,490 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 06:10:32,490 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 06:10:32,490 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 06:10:32,491 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:10:24" (3/4) ... [2018-12-02 06:10:32,494 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 06:10:32,498 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-02 06:10:32,498 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-02 06:10:32,498 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 06:10:32,498 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-12-02 06:10:32,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-02 06:10:32,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-02 06:10:32,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-02 06:10:32,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-02 06:10:32,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-02 06:10:32,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-02 06:10:32,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-02 06:10:32,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-02 06:10:32,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-02 06:10:32,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__highWaterSensor [2018-12-02 06:10:32,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 06:10:32,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-02 06:10:32,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-02 06:10:32,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-02 06:10:32,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-02 06:10:32,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-02 06:10:32,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-02 06:10:32,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-02 06:10:32,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-02 06:10:32,501 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-02 06:10:32,501 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-02 06:10:32,501 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification1_spec__1 [2018-12-02 06:10:32,506 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2018-12-02 06:10:32,506 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-12-02 06:10:32,507 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-12-02 06:10:32,507 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-02 06:10:32,507 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 06:10:32,507 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 06:10:32,524 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(0 == \old(pumpRunning)) || ((0 == pumpRunning && 1 <= methaneLevelCritical) && splverifierCounter == 0)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (0 == methaneLevelCritical && splverifierCounter == 0) [2018-12-02 06:10:32,524 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-02 06:10:32,553 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1dd9601a-85c3-4987-b9b2-bd757aa780a2/bin-2019/utaipan/witness.graphml [2018-12-02 06:10:32,553 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 06:10:32,554 INFO L168 Benchmark]: Toolchain (without parser) took 9035.06 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 632.3 MB). Free memory was 952.4 MB in the beginning and 868.4 MB in the end (delta: 83.9 MB). Peak memory consumption was 716.2 MB. Max. memory is 11.5 GB. [2018-12-02 06:10:32,554 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 06:10:32,554 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -117.7 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-02 06:10:32,554 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-02 06:10:32,554 INFO L168 Benchmark]: Boogie Preprocessor took 20.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 06:10:32,555 INFO L168 Benchmark]: RCFGBuilder took 339.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. [2018-12-02 06:10:32,555 INFO L168 Benchmark]: TraceAbstraction took 8288.93 ms. Allocated memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: 539.5 MB). Free memory was 1.0 GB in the beginning and 868.4 MB in the end (delta: 152.6 MB). Peak memory consumption was 692.1 MB. Max. memory is 11.5 GB. [2018-12-02 06:10:32,555 INFO L168 Benchmark]: Witness Printer took 62.94 ms. Allocated memory is still 1.7 GB. Free memory is still 868.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 06:10:32,556 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 300.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -117.7 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 339.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8288.93 ms. Allocated memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: 539.5 MB). Free memory was 1.0 GB in the beginning and 868.4 MB in the end (delta: 152.6 MB). Peak memory consumption was 692.1 MB. Max. memory is 11.5 GB. * Witness Printer took 62.94 ms. Allocated memory is still 1.7 GB. Free memory is still 868.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 690]: Loop Invariant Derived loop invariant: ((((!(0 == \old(pumpRunning)) || ((0 == pumpRunning && 1 <= methaneLevelCritical) && splverifierCounter == 0)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (0 == methaneLevelCritical && splverifierCounter == 0) - InvariantResult [Line: 689]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 143 locations, 1 error locations. SAFE Result, 8.2s OverallTime, 12 OverallIterations, 4 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 1.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 2064 SDtfs, 1167 SDslu, 4524 SDs, 0 SdLazy, 1787 SolverSat, 395 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 949 GetRequests, 834 SyntacticMatches, 15 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=871occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.1s AbstIntTime, 3 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 141 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 60 LocationsWithAnnotation, 1881 PreInvPairs, 2007 NumberOfFragments, 1576 HoareAnnotationTreeSize, 1881 FomulaSimplifications, 4324 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 60 FomulaSimplificationsInter, 10403 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1486 NumberOfCodeBlocks, 1486 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1880 ConstructedInterpolants, 0 QuantifiedInterpolants, 343445 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2455 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 18 InterpolantComputations, 12 PerfectInterpolantSequences, 302/318 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...