./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product61_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5911672e-38ff-4b70-ace9-ca240f118d4f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5911672e-38ff-4b70-ace9-ca240f118d4f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5911672e-38ff-4b70-ace9-ca240f118d4f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5911672e-38ff-4b70-ace9-ca240f118d4f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product61_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5911672e-38ff-4b70-ace9-ca240f118d4f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5911672e-38ff-4b70-ace9-ca240f118d4f/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 0997f7b4913388226e163b59383b8166cd33b05b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:57:09,524 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:57:09,525 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:57:09,534 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:57:09,534 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:57:09,534 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:57:09,535 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:57:09,536 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:57:09,537 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:57:09,537 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:57:09,538 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:57:09,538 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:57:09,539 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:57:09,539 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:57:09,540 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:57:09,541 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:57:09,541 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:57:09,542 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:57:09,543 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:57:09,544 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:57:09,545 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:57:09,546 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:57:09,548 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:57:09,548 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:57:09,548 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:57:09,548 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:57:09,549 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:57:09,550 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:57:09,550 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:57:09,551 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:57:09,551 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:57:09,551 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:57:09,552 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:57:09,552 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:57:09,552 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:57:09,553 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:57:09,553 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5911672e-38ff-4b70-ace9-ca240f118d4f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 14:57:09,563 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:57:09,563 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:57:09,564 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:57:09,564 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:57:09,564 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:57:09,564 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:57:09,564 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:57:09,565 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 14:57:09,565 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:57:09,565 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:57:09,565 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 14:57:09,565 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 14:57:09,565 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:57:09,566 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:57:09,566 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:57:09,566 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:57:09,566 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:57:09,566 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:57:09,567 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:57:09,567 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:57:09,567 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:57:09,567 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:57:09,567 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:57:09,567 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:57:09,567 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:57:09,568 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:57:09,568 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:57:09,568 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:57:09,568 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:57:09,568 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:57:09,568 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:57:09,568 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:57:09,568 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:57:09,569 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 14:57:09,569 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:57:09,569 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:57:09,569 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 14:57:09,569 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_5911672e-38ff-4b70-ace9-ca240f118d4f/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 -> 0997f7b4913388226e163b59383b8166cd33b05b [2018-11-18 14:57:09,593 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:57:09,601 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:57:09,603 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:57:09,604 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:57:09,604 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:57:09,605 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5911672e-38ff-4b70-ace9-ca240f118d4f/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product61_true-unreach-call_false-termination.cil.c [2018-11-18 14:57:09,640 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5911672e-38ff-4b70-ace9-ca240f118d4f/bin-2019/utaipan/data/b2650b1cf/a3e1ddfc770041a9bbfeaa0d0e498d68/FLAGd7f4a6607 [2018-11-18 14:57:10,060 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:57:10,061 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5911672e-38ff-4b70-ace9-ca240f118d4f/sv-benchmarks/c/product-lines/minepump_spec3_product61_true-unreach-call_false-termination.cil.c [2018-11-18 14:57:10,067 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5911672e-38ff-4b70-ace9-ca240f118d4f/bin-2019/utaipan/data/b2650b1cf/a3e1ddfc770041a9bbfeaa0d0e498d68/FLAGd7f4a6607 [2018-11-18 14:57:10,076 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5911672e-38ff-4b70-ace9-ca240f118d4f/bin-2019/utaipan/data/b2650b1cf/a3e1ddfc770041a9bbfeaa0d0e498d68 [2018-11-18 14:57:10,078 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:57:10,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:57:10,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:57:10,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:57:10,081 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:57:10,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:57:10" (1/1) ... [2018-11-18 14:57:10,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c3b532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:57:10, skipping insertion in model container [2018-11-18 14:57:10,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:57:10" (1/1) ... [2018-11-18 14:57:10,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:57:10,120 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:57:10,316 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:57:10,324 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:57:10,433 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:57:10,454 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:57:10,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:57:10 WrapperNode [2018-11-18 14:57:10,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:57:10,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:57:10,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:57:10,455 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:57:10,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:57:10" (1/1) ... [2018-11-18 14:57:10,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:57:10" (1/1) ... [2018-11-18 14:57:10,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:57:10,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:57:10,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:57:10,477 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:57:10,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:57:10" (1/1) ... [2018-11-18 14:57:10,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:57:10" (1/1) ... [2018-11-18 14:57:10,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:57:10" (1/1) ... [2018-11-18 14:57:10,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:57:10" (1/1) ... [2018-11-18 14:57:10,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:57:10" (1/1) ... [2018-11-18 14:57:10,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:57:10" (1/1) ... [2018-11-18 14:57:10,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:57:10" (1/1) ... [2018-11-18 14:57:10,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:57:10,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:57:10,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:57:10,505 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:57:10,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:57:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5911672e-38ff-4b70-ace9-ca240f118d4f/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:57:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-18 14:57:10,550 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-18 14:57:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:57:10,550 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:57:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-18 14:57:10,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-18 14:57:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:57:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-18 14:57:10,551 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-18 14:57:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-18 14:57:10,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-18 14:57:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-18 14:57:10,552 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-18 14:57:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 14:57:10,552 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 14:57:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-18 14:57:10,552 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-18 14:57:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-11-18 14:57:10,552 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-11-18 14:57:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-18 14:57:10,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-18 14:57:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-18 14:57:10,553 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-18 14:57:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-18 14:57:10,553 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-18 14:57:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-18 14:57:10,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-18 14:57:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-18 14:57:10,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-18 14:57:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 14:57:10,554 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 14:57:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 14:57:10,554 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 14:57:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-18 14:57:10,554 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-18 14:57:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 14:57:10,554 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 14:57:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 14:57:10,554 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 14:57:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-18 14:57:10,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-18 14:57:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-18 14:57:10,555 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-18 14:57:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-11-18 14:57:10,555 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-11-18 14:57:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-18 14:57:10,555 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-18 14:57:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-18 14:57:10,556 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-18 14:57:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-18 14:57:10,556 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-18 14:57:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-18 14:57:10,556 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-18 14:57:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:57:10,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:57:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 14:57:10,557 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 14:57:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2018-11-18 14:57:10,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2018-11-18 14:57:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-18 14:57:10,557 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-18 14:57:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:57:10,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:57:11,053 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:57:11,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:57:11 BoogieIcfgContainer [2018-11-18 14:57:11,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:57:11,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:57:11,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:57:11,057 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:57:11,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:57:10" (1/3) ... [2018-11-18 14:57:11,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b47ab5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:57:11, skipping insertion in model container [2018-11-18 14:57:11,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:57:10" (2/3) ... [2018-11-18 14:57:11,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b47ab5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:57:11, skipping insertion in model container [2018-11-18 14:57:11,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:57:11" (3/3) ... [2018-11-18 14:57:11,060 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product61_true-unreach-call_false-termination.cil.c [2018-11-18 14:57:11,068 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:57:11,074 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:57:11,087 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:57:11,114 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:57:11,114 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:57:11,114 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:57:11,114 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:57:11,115 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:57:11,115 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:57:11,115 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:57:11,115 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:57:11,130 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2018-11-18 14:57:11,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-18 14:57:11,139 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:57:11,139 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:57:11,142 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:57:11,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:11,146 INFO L82 PathProgramCache]: Analyzing trace with hash -93521140, now seen corresponding path program 1 times [2018-11-18 14:57:11,148 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:57:11,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:11,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:57:11,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:11,180 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:57:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:57:11,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:57:11,358 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:57:11,358 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:57:11,358 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:57:11,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:57:11,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:57:11,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:57:11,374 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 2 states. [2018-11-18 14:57:11,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:57:11,405 INFO L93 Difference]: Finished difference Result 316 states and 393 transitions. [2018-11-18 14:57:11,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:57:11,406 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2018-11-18 14:57:11,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:57:11,414 INFO L225 Difference]: With dead ends: 316 [2018-11-18 14:57:11,414 INFO L226 Difference]: Without dead ends: 158 [2018-11-18 14:57:11,417 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:57:11,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-11-18 14:57:11,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2018-11-18 14:57:11,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-11-18 14:57:11,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 188 transitions. [2018-11-18 14:57:11,448 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 188 transitions. Word has length 52 [2018-11-18 14:57:11,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:57:11,448 INFO L480 AbstractCegarLoop]: Abstraction has 158 states and 188 transitions. [2018-11-18 14:57:11,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:57:11,449 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 188 transitions. [2018-11-18 14:57:11,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-18 14:57:11,450 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:57:11,450 INFO L375 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] [2018-11-18 14:57:11,451 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:57:11,451 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:11,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1323937618, now seen corresponding path program 1 times [2018-11-18 14:57:11,451 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:57:11,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:11,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:57:11,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:11,452 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:57:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:57:11,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:57:11,531 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:57:11,531 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:57:11,531 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:57:11,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:57:11,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:57:11,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:57:11,533 INFO L87 Difference]: Start difference. First operand 158 states and 188 transitions. Second operand 3 states. [2018-11-18 14:57:11,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:57:11,554 INFO L93 Difference]: Finished difference Result 263 states and 313 transitions. [2018-11-18 14:57:11,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:57:11,554 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2018-11-18 14:57:11,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:57:11,556 INFO L225 Difference]: With dead ends: 263 [2018-11-18 14:57:11,556 INFO L226 Difference]: Without dead ends: 148 [2018-11-18 14:57:11,558 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:57:11,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-11-18 14:57:11,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-11-18 14:57:11,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-11-18 14:57:11,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 175 transitions. [2018-11-18 14:57:11,568 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 175 transitions. Word has length 54 [2018-11-18 14:57:11,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:57:11,569 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 175 transitions. [2018-11-18 14:57:11,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:57:11,569 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 175 transitions. [2018-11-18 14:57:11,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-18 14:57:11,570 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:57:11,571 INFO L375 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] [2018-11-18 14:57:11,571 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:57:11,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:11,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1545208344, now seen corresponding path program 1 times [2018-11-18 14:57:11,571 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:57:11,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:11,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:57:11,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:11,572 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:57:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:57:11,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:57:11,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:57:11,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:57:11,685 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:57:11,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:57:11,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:57:11,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:57:11,686 INFO L87 Difference]: Start difference. First operand 148 states and 175 transitions. Second operand 7 states. [2018-11-18 14:57:11,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:57:11,983 INFO L93 Difference]: Finished difference Result 272 states and 327 transitions. [2018-11-18 14:57:11,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 14:57:11,983 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2018-11-18 14:57:11,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:57:11,984 INFO L225 Difference]: With dead ends: 272 [2018-11-18 14:57:11,985 INFO L226 Difference]: Without dead ends: 148 [2018-11-18 14:57:11,986 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:57:11,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-11-18 14:57:11,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-11-18 14:57:11,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-11-18 14:57:11,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 174 transitions. [2018-11-18 14:57:11,998 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 174 transitions. Word has length 58 [2018-11-18 14:57:11,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:57:11,998 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 174 transitions. [2018-11-18 14:57:11,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:57:11,999 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 174 transitions. [2018-11-18 14:57:12,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-11-18 14:57:12,001 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:57:12,001 INFO L375 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] [2018-11-18 14:57:12,001 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:57:12,001 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:12,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1632083135, now seen corresponding path program 1 times [2018-11-18 14:57:12,002 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:57:12,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:12,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:57:12,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:12,003 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:57:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:57:12,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:57:12,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:57:12,102 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:57:12,102 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:57:12,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:57:12,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:57:12,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:57:12,103 INFO L87 Difference]: Start difference. First operand 148 states and 174 transitions. Second operand 5 states. [2018-11-18 14:57:12,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:57:12,501 INFO L93 Difference]: Finished difference Result 395 states and 478 transitions. [2018-11-18 14:57:12,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 14:57:12,502 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2018-11-18 14:57:12,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:57:12,504 INFO L225 Difference]: With dead ends: 395 [2018-11-18 14:57:12,504 INFO L226 Difference]: Without dead ends: 271 [2018-11-18 14:57:12,505 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:57:12,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2018-11-18 14:57:12,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 252. [2018-11-18 14:57:12,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2018-11-18 14:57:12,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 287 transitions. [2018-11-18 14:57:12,530 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 287 transitions. Word has length 76 [2018-11-18 14:57:12,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:57:12,530 INFO L480 AbstractCegarLoop]: Abstraction has 252 states and 287 transitions. [2018-11-18 14:57:12,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:57:12,530 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 287 transitions. [2018-11-18 14:57:12,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-11-18 14:57:12,532 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:57:12,532 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:57:12,532 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:57:12,532 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:12,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1494970912, now seen corresponding path program 1 times [2018-11-18 14:57:12,532 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:57:12,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:12,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:57:12,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:12,533 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:57:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:57:12,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:57:12,641 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:57:12,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 14:57:12,643 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:57:12,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:57:12,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:57:12,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:57:12,644 INFO L87 Difference]: Start difference. First operand 252 states and 287 transitions. Second operand 6 states. [2018-11-18 14:57:12,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:57:12,791 INFO L93 Difference]: Finished difference Result 615 states and 734 transitions. [2018-11-18 14:57:12,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 14:57:12,791 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2018-11-18 14:57:12,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:57:12,793 INFO L225 Difference]: With dead ends: 615 [2018-11-18 14:57:12,794 INFO L226 Difference]: Without dead ends: 387 [2018-11-18 14:57:12,794 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 14:57:12,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2018-11-18 14:57:12,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 383. [2018-11-18 14:57:12,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-11-18 14:57:12,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 442 transitions. [2018-11-18 14:57:12,815 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 442 transitions. Word has length 90 [2018-11-18 14:57:12,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:57:12,815 INFO L480 AbstractCegarLoop]: Abstraction has 383 states and 442 transitions. [2018-11-18 14:57:12,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:57:12,815 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 442 transitions. [2018-11-18 14:57:12,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-11-18 14:57:12,816 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:57:12,817 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:57:12,817 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:57:12,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:12,817 INFO L82 PathProgramCache]: Analyzing trace with hash 611614566, now seen corresponding path program 1 times [2018-11-18 14:57:12,817 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:57:12,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:12,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:57:12,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:12,818 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:57:12,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:57:12,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:57:12,907 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:57:12,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 14:57:12,907 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:57:12,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:57:12,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:57:12,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:57:12,908 INFO L87 Difference]: Start difference. First operand 383 states and 442 transitions. Second operand 6 states. [2018-11-18 14:57:13,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:57:13,072 INFO L93 Difference]: Finished difference Result 834 states and 999 transitions. [2018-11-18 14:57:13,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:57:13,073 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2018-11-18 14:57:13,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:57:13,076 INFO L225 Difference]: With dead ends: 834 [2018-11-18 14:57:13,077 INFO L226 Difference]: Without dead ends: 606 [2018-11-18 14:57:13,077 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 14:57:13,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2018-11-18 14:57:13,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 588. [2018-11-18 14:57:13,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 588 states. [2018-11-18 14:57:13,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 694 transitions. [2018-11-18 14:57:13,106 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 694 transitions. Word has length 94 [2018-11-18 14:57:13,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:57:13,106 INFO L480 AbstractCegarLoop]: Abstraction has 588 states and 694 transitions. [2018-11-18 14:57:13,106 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:57:13,106 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 694 transitions. [2018-11-18 14:57:13,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-11-18 14:57:13,108 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:57:13,108 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:57:13,108 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:57:13,108 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:13,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1324045721, now seen corresponding path program 1 times [2018-11-18 14:57:13,109 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:57:13,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:13,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:57:13,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:13,110 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:57:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:57:13,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:57:13,167 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:57:13,167 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:57:13,168 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:57:13,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:57:13,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:57:13,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:57:13,168 INFO L87 Difference]: Start difference. First operand 588 states and 694 transitions. Second operand 5 states. [2018-11-18 14:57:13,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:57:13,191 INFO L93 Difference]: Finished difference Result 1031 states and 1243 transitions. [2018-11-18 14:57:13,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:57:13,192 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 94 [2018-11-18 14:57:13,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:57:13,194 INFO L225 Difference]: With dead ends: 1031 [2018-11-18 14:57:13,195 INFO L226 Difference]: Without dead ends: 598 [2018-11-18 14:57:13,195 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:57:13,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2018-11-18 14:57:13,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 592. [2018-11-18 14:57:13,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2018-11-18 14:57:13,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 697 transitions. [2018-11-18 14:57:13,218 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 697 transitions. Word has length 94 [2018-11-18 14:57:13,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:57:13,219 INFO L480 AbstractCegarLoop]: Abstraction has 592 states and 697 transitions. [2018-11-18 14:57:13,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:57:13,219 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 697 transitions. [2018-11-18 14:57:13,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-11-18 14:57:13,221 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:57:13,221 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:57:13,221 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:57:13,221 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:13,221 INFO L82 PathProgramCache]: Analyzing trace with hash -664514199, now seen corresponding path program 1 times [2018-11-18 14:57:13,221 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:57:13,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:13,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:57:13,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:13,222 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:57:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:57:13,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:57:13,294 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:57:13,294 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 14:57:13,294 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:57:13,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 14:57:13,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 14:57:13,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 14:57:13,295 INFO L87 Difference]: Start difference. First operand 592 states and 697 transitions. Second operand 9 states. [2018-11-18 14:57:13,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:57:13,337 INFO L93 Difference]: Finished difference Result 1177 states and 1416 transitions. [2018-11-18 14:57:13,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:57:13,338 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2018-11-18 14:57:13,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:57:13,340 INFO L225 Difference]: With dead ends: 1177 [2018-11-18 14:57:13,340 INFO L226 Difference]: Without dead ends: 609 [2018-11-18 14:57:13,341 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:57:13,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2018-11-18 14:57:13,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 599. [2018-11-18 14:57:13,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2018-11-18 14:57:13,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 704 transitions. [2018-11-18 14:57:13,360 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 704 transitions. Word has length 94 [2018-11-18 14:57:13,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:57:13,361 INFO L480 AbstractCegarLoop]: Abstraction has 599 states and 704 transitions. [2018-11-18 14:57:13,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 14:57:13,361 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 704 transitions. [2018-11-18 14:57:13,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-11-18 14:57:13,363 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:57:13,364 INFO L375 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, 1, 1, 1, 1] [2018-11-18 14:57:13,364 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:57:13,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:13,364 INFO L82 PathProgramCache]: Analyzing trace with hash 576548684, now seen corresponding path program 1 times [2018-11-18 14:57:13,364 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:57:13,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:13,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:57:13,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:13,365 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:57:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:57:13,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 14:57:13,443 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:57:13,443 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:57:13,444 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 107 with the following transitions: [2018-11-18 14:57:13,445 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [33], [36], [37], [38], [50], [53], [55], [56], [59], [63], [64], [65], [80], [83], [85], [89], [95], [99], [103], [106], [111], [117], [119], [122], [141], [142], [143], [145], [148], [153], [154], [155], [156], [158], [163], [165], [166], [174], [175], [208], [212], [219], [221], [226], [228], [231], [233], [238], [252], [256], [259], [261], [264], [274], [277], [281], [282], [285], [286], [287], [288], [289], [290], [291], [292], [293], [301], [302], [305], [307], [308], [315], [316], [317], [318], [321], [325], [326], [329], [330], [337], [338], [339], [341], [342], [343], [344], [345], [346], [347], [349], [350], [351], [353], [354], [355], [356] [2018-11-18 14:57:13,470 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:57:13,470 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:57:13,783 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 14:57:13,784 INFO L272 AbstractInterpreter]: Visited 76 different actions 76 times. Never merged. Never widened. Performed 2507 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2507 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 14:57:13,798 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:13,798 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 14:57:14,045 INFO L227 lantSequenceWeakener]: Weakened 74 states. On average, predicates are now at 96.69% of their original sizes. [2018-11-18 14:57:14,045 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 14:57:14,147 INFO L415 sIntCurrentIteration]: We unified 105 AI predicates to 105 [2018-11-18 14:57:14,147 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 14:57:14,148 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 14:57:14,148 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [9] total 25 [2018-11-18 14:57:14,148 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:57:14,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 14:57:14,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 14:57:14,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2018-11-18 14:57:14,149 INFO L87 Difference]: Start difference. First operand 599 states and 704 transitions. Second operand 18 states. [2018-11-18 14:57:16,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:57:16,027 INFO L93 Difference]: Finished difference Result 1310 states and 1568 transitions. [2018-11-18 14:57:16,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-18 14:57:16,027 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 106 [2018-11-18 14:57:16,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:57:16,029 INFO L225 Difference]: With dead ends: 1310 [2018-11-18 14:57:16,029 INFO L226 Difference]: Without dead ends: 735 [2018-11-18 14:57:16,030 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 114 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2018-11-18 14:57:16,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2018-11-18 14:57:16,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 731. [2018-11-18 14:57:16,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 731 states. [2018-11-18 14:57:16,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 860 transitions. [2018-11-18 14:57:16,052 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 860 transitions. Word has length 106 [2018-11-18 14:57:16,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:57:16,052 INFO L480 AbstractCegarLoop]: Abstraction has 731 states and 860 transitions. [2018-11-18 14:57:16,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 14:57:16,052 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 860 transitions. [2018-11-18 14:57:16,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-11-18 14:57:16,053 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:57:16,054 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:57:16,054 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:57:16,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:16,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1476953424, now seen corresponding path program 1 times [2018-11-18 14:57:16,054 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:57:16,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:16,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:57:16,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:16,056 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:57:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:57:16,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 14:57:16,120 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:57:16,120 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 14:57:16,120 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:57:16,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 14:57:16,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 14:57:16,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:57:16,121 INFO L87 Difference]: Start difference. First operand 731 states and 860 transitions. Second operand 10 states. [2018-11-18 14:57:16,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:57:16,341 INFO L93 Difference]: Finished difference Result 1830 states and 2214 transitions. [2018-11-18 14:57:16,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 14:57:16,342 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 110 [2018-11-18 14:57:16,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:57:16,345 INFO L225 Difference]: With dead ends: 1830 [2018-11-18 14:57:16,345 INFO L226 Difference]: Without dead ends: 1255 [2018-11-18 14:57:16,347 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:57:16,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2018-11-18 14:57:16,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1237. [2018-11-18 14:57:16,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1237 states. [2018-11-18 14:57:16,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 1458 transitions. [2018-11-18 14:57:16,381 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 1458 transitions. Word has length 110 [2018-11-18 14:57:16,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:57:16,382 INFO L480 AbstractCegarLoop]: Abstraction has 1237 states and 1458 transitions. [2018-11-18 14:57:16,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 14:57:16,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 1458 transitions. [2018-11-18 14:57:16,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-11-18 14:57:16,383 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:57:16,384 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:57:16,384 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:57:16,384 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:16,384 INFO L82 PathProgramCache]: Analyzing trace with hash 586093422, now seen corresponding path program 1 times [2018-11-18 14:57:16,384 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:57:16,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:16,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:57:16,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:16,385 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:57:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:57:16,459 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 14:57:16,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:57:16,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 14:57:16,460 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:57:16,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 14:57:16,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 14:57:16,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:57:16,461 INFO L87 Difference]: Start difference. First operand 1237 states and 1458 transitions. Second operand 10 states. [2018-11-18 14:57:16,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:57:16,682 INFO L93 Difference]: Finished difference Result 2324 states and 2743 transitions. [2018-11-18 14:57:16,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 14:57:16,682 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 110 [2018-11-18 14:57:16,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:57:16,686 INFO L225 Difference]: With dead ends: 2324 [2018-11-18 14:57:16,686 INFO L226 Difference]: Without dead ends: 1243 [2018-11-18 14:57:16,688 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:57:16,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2018-11-18 14:57:16,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1215. [2018-11-18 14:57:16,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1215 states. [2018-11-18 14:57:16,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1396 transitions. [2018-11-18 14:57:16,721 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1396 transitions. Word has length 110 [2018-11-18 14:57:16,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:57:16,722 INFO L480 AbstractCegarLoop]: Abstraction has 1215 states and 1396 transitions. [2018-11-18 14:57:16,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 14:57:16,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1396 transitions. [2018-11-18 14:57:16,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-11-18 14:57:16,725 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:57:16,726 INFO L375 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, 1, 1, 1, 1, 1] [2018-11-18 14:57:16,726 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:57:16,726 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:16,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1808148163, now seen corresponding path program 1 times [2018-11-18 14:57:16,726 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:57:16,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:16,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:57:16,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:16,727 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:57:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:57:16,793 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-11-18 14:57:16,793 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:57:16,793 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:57:16,794 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 159 with the following transitions: [2018-11-18 14:57:16,794 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [33], [36], [37], [38], [50], [53], [55], [56], [57], [58], [59], [63], [64], [65], [68], [70], [73], [80], [83], [85], [89], [95], [99], [103], [106], [109], [111], [117], [119], [122], [137], [138], [141], [142], [143], [145], [150], [153], [154], [155], [156], [158], [163], [165], [166], [174], [175], [205], [208], [212], [218], [219], [221], [224], [226], [228], [231], [233], [238], [244], [247], [251], [252], [256], [259], [261], [264], [274], [277], [281], [282], [285], [286], [287], [288], [289], [290], [291], [292], [293], [301], [302], [305], [307], [308], [309], [310], [311], [312], [315], [316], [317], [318], [321], [322], [325], [326], [327], [328], [329], [330], [335], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [349], [350], [351], [353], [354], [355], [356] [2018-11-18 14:57:16,797 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:57:16,797 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:57:17,166 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 14:57:17,166 INFO L272 AbstractInterpreter]: Visited 110 different actions 135 times. Merged at 5 different actions 5 times. Never widened. Performed 6974 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6974 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 14:57:17,175 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:17,175 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 14:57:17,429 INFO L227 lantSequenceWeakener]: Weakened 131 states. On average, predicates are now at 96.83% of their original sizes. [2018-11-18 14:57:17,429 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 14:57:17,708 INFO L415 sIntCurrentIteration]: We unified 157 AI predicates to 157 [2018-11-18 14:57:17,708 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 14:57:17,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 14:57:17,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [35] imperfect sequences [7] total 40 [2018-11-18 14:57:17,709 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:57:17,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-11-18 14:57:17,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-11-18 14:57:17,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1039, Unknown=0, NotChecked=0, Total=1190 [2018-11-18 14:57:17,710 INFO L87 Difference]: Start difference. First operand 1215 states and 1396 transitions. Second operand 35 states. [2018-11-18 14:57:25,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:57:25,887 INFO L93 Difference]: Finished difference Result 2466 states and 2911 transitions. [2018-11-18 14:57:25,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-11-18 14:57:25,887 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 158 [2018-11-18 14:57:25,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:57:25,894 INFO L225 Difference]: With dead ends: 2466 [2018-11-18 14:57:25,894 INFO L226 Difference]: Without dead ends: 1658 [2018-11-18 14:57:25,896 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 178 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 794 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=324, Invalid=2756, Unknown=0, NotChecked=0, Total=3080 [2018-11-18 14:57:25,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2018-11-18 14:57:25,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1607. [2018-11-18 14:57:25,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1607 states. [2018-11-18 14:57:25,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1607 states to 1607 states and 1848 transitions. [2018-11-18 14:57:25,968 INFO L78 Accepts]: Start accepts. Automaton has 1607 states and 1848 transitions. Word has length 158 [2018-11-18 14:57:25,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:57:25,969 INFO L480 AbstractCegarLoop]: Abstraction has 1607 states and 1848 transitions. [2018-11-18 14:57:25,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-11-18 14:57:25,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1607 states and 1848 transitions. [2018-11-18 14:57:25,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-11-18 14:57:25,972 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:57:25,973 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:57:25,973 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:57:25,973 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:25,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1176210550, now seen corresponding path program 1 times [2018-11-18 14:57:25,973 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:57:25,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:25,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:57:25,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:25,974 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:57:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:57:26,075 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-11-18 14:57:26,075 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:57:26,075 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:57:26,076 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 167 with the following transitions: [2018-11-18 14:57:26,077 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [33], [36], [37], [38], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [89], [95], [99], [103], [106], [109], [111], [114], [119], [122], [137], [138], [141], [142], [143], [145], [150], [153], [154], [155], [156], [158], [161], [165], [166], [169], [171], [173], [174], [175], [205], [208], [212], [218], [219], [221], [224], [226], [228], [231], [233], [238], [244], [247], [251], [252], [256], [259], [261], [264], [274], [277], [281], [282], [285], [286], [287], [288], [289], [290], [291], [292], [293], [301], [302], [305], [307], [308], [309], [310], [311], [312], [315], [316], [317], [318], [319], [320], [321], [322], [325], [326], [327], [328], [329], [330], [335], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [349], [350], [351], [353], [354], [355], [356] [2018-11-18 14:57:26,080 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:57:26,080 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:57:26,572 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 14:57:26,572 INFO L272 AbstractInterpreter]: Visited 84 different actions 134 times. Merged at 6 different actions 6 times. Never widened. Performed 6992 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6992 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 14:57:26,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:26,591 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 14:57:26,844 INFO L227 lantSequenceWeakener]: Weakened 97 states. On average, predicates are now at 96.52% of their original sizes. [2018-11-18 14:57:26,844 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 14:57:27,016 INFO L415 sIntCurrentIteration]: We unified 165 AI predicates to 165 [2018-11-18 14:57:27,017 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 14:57:27,017 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 14:57:27,017 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [6] total 28 [2018-11-18 14:57:27,017 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:57:27,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-18 14:57:27,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-18 14:57:27,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2018-11-18 14:57:27,018 INFO L87 Difference]: Start difference. First operand 1607 states and 1848 transitions. Second operand 24 states. [2018-11-18 14:57:32,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:57:32,741 INFO L93 Difference]: Finished difference Result 3037 states and 3588 transitions. [2018-11-18 14:57:32,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-18 14:57:32,741 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 166 [2018-11-18 14:57:32,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:57:32,748 INFO L225 Difference]: With dead ends: 3037 [2018-11-18 14:57:32,748 INFO L226 Difference]: Without dead ends: 1978 [2018-11-18 14:57:32,751 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 177 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=1086, Unknown=0, NotChecked=0, Total=1260 [2018-11-18 14:57:32,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2018-11-18 14:57:32,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1928. [2018-11-18 14:57:32,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1928 states. [2018-11-18 14:57:32,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1928 states to 1928 states and 2232 transitions. [2018-11-18 14:57:32,834 INFO L78 Accepts]: Start accepts. Automaton has 1928 states and 2232 transitions. Word has length 166 [2018-11-18 14:57:32,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:57:32,834 INFO L480 AbstractCegarLoop]: Abstraction has 1928 states and 2232 transitions. [2018-11-18 14:57:32,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-11-18 14:57:32,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1928 states and 2232 transitions. [2018-11-18 14:57:32,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-11-18 14:57:32,838 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:57:32,838 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:57:32,838 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:57:32,838 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:32,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1577061363, now seen corresponding path program 1 times [2018-11-18 14:57:32,839 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:57:32,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:32,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:57:32,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:32,839 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:57:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:57:32,967 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-11-18 14:57:32,967 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:57:32,967 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:57:32,967 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 167 with the following transitions: [2018-11-18 14:57:32,968 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [33], [36], [37], [38], [50], [53], [55], [56], [57], [58], [59], [63], [64], [65], [68], [70], [73], [80], [83], [85], [89], [95], [99], [103], [106], [109], [111], [114], [119], [122], [137], [138], [141], [142], [143], [145], [150], [153], [154], [155], [156], [158], [163], [165], [166], [169], [171], [173], [174], [175], [205], [208], [212], [218], [219], [221], [224], [226], [228], [231], [233], [238], [244], [247], [251], [252], [256], [259], [261], [264], [274], [277], [281], [282], [285], [286], [287], [288], [289], [290], [291], [292], [293], [301], [302], [305], [307], [308], [309], [310], [311], [312], [315], [316], [317], [318], [319], [320], [321], [322], [325], [326], [327], [328], [329], [330], [335], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [349], [350], [351], [353], [354], [355], [356] [2018-11-18 14:57:32,971 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:57:32,972 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:57:33,175 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 14:57:33,175 INFO L272 AbstractInterpreter]: Visited 84 different actions 112 times. Merged at 6 different actions 6 times. Never widened. Performed 6578 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6578 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 14:57:33,179 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:33,179 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 14:57:33,325 INFO L227 lantSequenceWeakener]: Weakened 97 states. On average, predicates are now at 96.52% of their original sizes. [2018-11-18 14:57:33,325 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 14:57:33,441 INFO L415 sIntCurrentIteration]: We unified 165 AI predicates to 165 [2018-11-18 14:57:33,441 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 14:57:33,442 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 14:57:33,442 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [13] total 35 [2018-11-18 14:57:33,442 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:57:33,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-18 14:57:33,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-18 14:57:33,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2018-11-18 14:57:33,443 INFO L87 Difference]: Start difference. First operand 1928 states and 2232 transitions. Second operand 24 states. [2018-11-18 14:57:37,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:57:37,426 INFO L93 Difference]: Finished difference Result 2951 states and 3449 transitions. [2018-11-18 14:57:37,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-18 14:57:37,426 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 166 [2018-11-18 14:57:37,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:57:37,433 INFO L225 Difference]: With dead ends: 2951 [2018-11-18 14:57:37,433 INFO L226 Difference]: Without dead ends: 1778 [2018-11-18 14:57:37,437 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 177 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=174, Invalid=1086, Unknown=0, NotChecked=0, Total=1260 [2018-11-18 14:57:37,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2018-11-18 14:57:37,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1716. [2018-11-18 14:57:37,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1716 states. [2018-11-18 14:57:37,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1716 states to 1716 states and 1964 transitions. [2018-11-18 14:57:37,529 INFO L78 Accepts]: Start accepts. Automaton has 1716 states and 1964 transitions. Word has length 166 [2018-11-18 14:57:37,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:57:37,529 INFO L480 AbstractCegarLoop]: Abstraction has 1716 states and 1964 transitions. [2018-11-18 14:57:37,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-11-18 14:57:37,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1716 states and 1964 transitions. [2018-11-18 14:57:37,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-11-18 14:57:37,532 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:57:37,533 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:57:37,533 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:57:37,533 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:37,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1046948666, now seen corresponding path program 1 times [2018-11-18 14:57:37,533 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:57:37,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:37,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:57:37,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:37,534 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:57:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:57:37,711 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-18 14:57:37,711 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:57:37,711 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:57:37,711 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 155 with the following transitions: [2018-11-18 14:57:37,712 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [33], [36], [37], [38], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [89], [95], [99], [103], [109], [111], [117], [119], [122], [137], [138], [141], [142], [143], [145], [150], [153], [154], [155], [156], [158], [161], [165], [166], [174], [175], [205], [208], [212], [218], [219], [221], [224], [226], [228], [231], [233], [238], [244], [247], [251], [252], [256], [259], [261], [264], [274], [282], [285], [286], [287], [288], [289], [290], [291], [292], [293], [301], [302], [305], [307], [308], [309], [310], [311], [312], [315], [316], [321], [322], [325], [326], [327], [328], [329], [330], [335], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [349], [350], [351], [353], [354], [355], [356] [2018-11-18 14:57:37,713 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:57:37,714 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:57:37,893 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 14:57:37,894 INFO L272 AbstractInterpreter]: Visited 105 different actions 107 times. Never merged. Never widened. Performed 3040 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3040 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 14:57:37,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:37,901 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 14:57:38,031 INFO L227 lantSequenceWeakener]: Weakened 127 states. On average, predicates are now at 96.84% of their original sizes. [2018-11-18 14:57:38,031 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 14:57:38,213 INFO L415 sIntCurrentIteration]: We unified 153 AI predicates to 153 [2018-11-18 14:57:38,213 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 14:57:38,213 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 14:57:38,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [31] imperfect sequences [6] total 35 [2018-11-18 14:57:38,214 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:57:38,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-11-18 14:57:38,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-11-18 14:57:38,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=816, Unknown=0, NotChecked=0, Total=930 [2018-11-18 14:57:38,214 INFO L87 Difference]: Start difference. First operand 1716 states and 1964 transitions. Second operand 31 states. [2018-11-18 14:57:41,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:57:41,270 INFO L93 Difference]: Finished difference Result 3427 states and 3944 transitions. [2018-11-18 14:57:41,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-18 14:57:41,270 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 154 [2018-11-18 14:57:41,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:57:41,275 INFO L225 Difference]: With dead ends: 3427 [2018-11-18 14:57:41,275 INFO L226 Difference]: Without dead ends: 1735 [2018-11-18 14:57:41,277 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 166 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=190, Invalid=1702, Unknown=0, NotChecked=0, Total=1892 [2018-11-18 14:57:41,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2018-11-18 14:57:41,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1707. [2018-11-18 14:57:41,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2018-11-18 14:57:41,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1951 transitions. [2018-11-18 14:57:41,321 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1951 transitions. Word has length 154 [2018-11-18 14:57:41,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:57:41,322 INFO L480 AbstractCegarLoop]: Abstraction has 1707 states and 1951 transitions. [2018-11-18 14:57:41,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-11-18 14:57:41,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1951 transitions. [2018-11-18 14:57:41,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-11-18 14:57:41,324 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:57:41,324 INFO L375 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:57:41,325 INFO L423 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:57:41,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:41,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1932118326, now seen corresponding path program 1 times [2018-11-18 14:57:41,325 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:57:41,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:41,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:57:41,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:41,326 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:57:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:57:41,380 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-11-18 14:57:41,380 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:57:41,380 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:57:41,380 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 161 with the following transitions: [2018-11-18 14:57:41,380 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [33], [36], [37], [38], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [89], [95], [99], [103], [109], [111], [117], [119], [122], [137], [138], [141], [142], [143], [145], [150], [153], [154], [155], [156], [158], [161], [165], [166], [174], [175], [205], [208], [212], [218], [219], [221], [226], [228], [231], [233], [238], [242], [244], [247], [251], [252], [256], [259], [261], [264], [274], [282], [285], [286], [287], [288], [289], [290], [291], [292], [293], [301], [302], [305], [307], [308], [309], [310], [311], [312], [315], [316], [321], [322], [325], [326], [327], [328], [329], [330], [335], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [349], [350], [351], [353], [354], [355], [356] [2018-11-18 14:57:41,382 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:57:41,382 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:57:41,643 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 14:57:41,643 INFO L272 AbstractInterpreter]: Visited 117 different actions 288 times. Merged at 15 different actions 15 times. Never widened. Performed 8155 root evaluator evaluations with a maximum evaluation depth of 3. Performed 8155 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 1 different actions. Largest state had 132 variables. [2018-11-18 14:57:41,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:41,655 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 14:57:41,843 INFO L227 lantSequenceWeakener]: Weakened 152 states. On average, predicates are now at 96.9% of their original sizes. [2018-11-18 14:57:41,843 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 14:57:42,131 INFO L415 sIntCurrentIteration]: We unified 159 AI predicates to 159 [2018-11-18 14:57:42,131 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 14:57:42,131 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 14:57:42,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [40] imperfect sequences [6] total 44 [2018-11-18 14:57:42,131 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:57:42,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-11-18 14:57:42,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-11-18 14:57:42,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=1406, Unknown=0, NotChecked=0, Total=1560 [2018-11-18 14:57:42,132 INFO L87 Difference]: Start difference. First operand 1707 states and 1951 transitions. Second operand 40 states. [2018-11-18 14:57:50,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:57:50,669 INFO L93 Difference]: Finished difference Result 3061 states and 3593 transitions. [2018-11-18 14:57:50,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-11-18 14:57:50,670 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 160 [2018-11-18 14:57:50,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:57:50,676 INFO L225 Difference]: With dead ends: 3061 [2018-11-18 14:57:50,676 INFO L226 Difference]: Without dead ends: 2271 [2018-11-18 14:57:50,679 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 191 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1484 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=414, Invalid=4698, Unknown=0, NotChecked=0, Total=5112 [2018-11-18 14:57:50,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2271 states. [2018-11-18 14:57:50,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2271 to 2020. [2018-11-18 14:57:50,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2020 states. [2018-11-18 14:57:50,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2020 states to 2020 states and 2296 transitions. [2018-11-18 14:57:50,771 INFO L78 Accepts]: Start accepts. Automaton has 2020 states and 2296 transitions. Word has length 160 [2018-11-18 14:57:50,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:57:50,771 INFO L480 AbstractCegarLoop]: Abstraction has 2020 states and 2296 transitions. [2018-11-18 14:57:50,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-11-18 14:57:50,772 INFO L276 IsEmpty]: Start isEmpty. Operand 2020 states and 2296 transitions. [2018-11-18 14:57:50,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-11-18 14:57:50,774 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:57:50,774 INFO L375 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:57:50,775 INFO L423 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:57:50,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:50,775 INFO L82 PathProgramCache]: Analyzing trace with hash -956127341, now seen corresponding path program 1 times [2018-11-18 14:57:50,775 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:57:50,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:50,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:57:50,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:57:50,776 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:57:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:57:50,918 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-11-18 14:57:50,919 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:57:50,919 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:57:50,919 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 165 with the following transitions: [2018-11-18 14:57:50,919 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [33], [36], [37], [38], [50], [53], [55], [56], [57], [58], [59], [63], [64], [65], [68], [70], [73], [80], [83], [85], [89], [95], [99], [103], [106], [109], [111], [117], [119], [122], [137], [138], [141], [142], [143], [145], [150], [153], [154], [155], [156], [158], [163], [165], [166], [174], [175], [205], [208], [212], [218], [219], [221], [226], [228], [231], [233], [238], [242], [244], [247], [251], [252], [256], [259], [261], [264], [274], [277], [281], [282], [285], [286], [287], [288], [289], [290], [291], [292], [293], [301], [302], [305], [307], [308], [309], [310], [311], [312], [315], [316], [317], [318], [321], [322], [325], [326], [327], [328], [329], [330], [335], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [349], [350], [351], [353], [354], [355], [356] [2018-11-18 14:57:50,921 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:57:50,921 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:57:51,399 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 14:57:51,399 INFO L272 AbstractInterpreter]: Visited 122 different actions 443 times. Merged at 14 different actions 25 times. Never widened. Performed 15129 root evaluator evaluations with a maximum evaluation depth of 3. Performed 15129 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 2 different actions. Largest state had 132 variables. [2018-11-18 14:57:51,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:57:51,405 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 14:57:51,582 INFO L227 lantSequenceWeakener]: Weakened 156 states. On average, predicates are now at 97.2% of their original sizes. [2018-11-18 14:57:51,582 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 14:57:51,850 INFO L415 sIntCurrentIteration]: We unified 163 AI predicates to 163 [2018-11-18 14:57:51,850 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 14:57:51,850 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 14:57:51,851 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [40] imperfect sequences [9] total 47 [2018-11-18 14:57:51,851 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:57:51,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-11-18 14:57:51,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-11-18 14:57:51,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1370, Unknown=0, NotChecked=0, Total=1560 [2018-11-18 14:57:51,852 INFO L87 Difference]: Start difference. First operand 2020 states and 2296 transitions. Second operand 40 states. [2018-11-18 14:58:03,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:58:03,964 INFO L93 Difference]: Finished difference Result 4082 states and 4805 transitions. [2018-11-18 14:58:03,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-11-18 14:58:03,964 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 164 [2018-11-18 14:58:03,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:58:03,971 INFO L225 Difference]: With dead ends: 4082 [2018-11-18 14:58:03,971 INFO L226 Difference]: Without dead ends: 2908 [2018-11-18 14:58:03,975 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 221 GetRequests, 116 SyntacticMatches, 9 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3164 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=766, Invalid=8740, Unknown=0, NotChecked=0, Total=9506 [2018-11-18 14:58:03,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2018-11-18 14:58:04,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 2774. [2018-11-18 14:58:04,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2774 states. [2018-11-18 14:58:04,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3163 transitions. [2018-11-18 14:58:04,269 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3163 transitions. Word has length 164 [2018-11-18 14:58:04,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:58:04,270 INFO L480 AbstractCegarLoop]: Abstraction has 2774 states and 3163 transitions. [2018-11-18 14:58:04,270 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-11-18 14:58:04,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3163 transitions. [2018-11-18 14:58:04,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-11-18 14:58:04,273 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:58:04,273 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:58:04,273 INFO L423 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:58:04,273 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:58:04,273 INFO L82 PathProgramCache]: Analyzing trace with hash 798281149, now seen corresponding path program 1 times [2018-11-18 14:58:04,273 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:58:04,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:58:04,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:58:04,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:58:04,274 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:58:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:58:04,376 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-11-18 14:58:04,377 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:58:04,377 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:58:04,377 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 171 with the following transitions: [2018-11-18 14:58:04,377 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [33], [36], [37], [38], [50], [53], [55], [56], [59], [62], [63], [64], [65], [80], [83], [84], [85], [89], [95], [99], [103], [106], [109], [111], [114], [119], [122], [141], [142], [143], [145], [148], [153], [154], [155], [156], [158], [161], [163], [165], [166], [169], [171], [173], [174], [175], [208], [212], [218], [219], [221], [224], [226], [228], [231], [233], [238], [244], [252], [256], [259], [261], [264], [267], [274], [277], [281], [282], [285], [286], [287], [288], [289], [290], [291], [292], [293], [301], [302], [305], [307], [308], [315], [316], [317], [318], [319], [320], [321], [322], [325], [326], [329], [330], [337], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [349], [350], [351], [353], [354], [355], [356], [357], [358] [2018-11-18 14:58:04,378 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:58:04,379 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:58:05,359 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:58:05,360 INFO L272 AbstractInterpreter]: Visited 121 different actions 701 times. Merged at 37 different actions 151 times. Never widened. Performed 28437 root evaluator evaluations with a maximum evaluation depth of 3. Performed 28437 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 27 fixpoints after 9 different actions. Largest state had 132 variables. [2018-11-18 14:58:05,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:58:05,362 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:58:05,362 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:58:05,362 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5911672e-38ff-4b70-ace9-ca240f118d4f/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:58:05,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:58:05,369 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:58:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:58:05,475 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:58:05,595 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 14:58:05,596 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:58:05,988 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-11-18 14:58:06,004 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:58:06,004 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 9] total 19 [2018-11-18 14:58:06,004 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:58:06,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 14:58:06,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 14:58:06,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2018-11-18 14:58:06,006 INFO L87 Difference]: Start difference. First operand 2774 states and 3163 transitions. Second operand 8 states. [2018-11-18 14:58:06,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:58:06,344 INFO L93 Difference]: Finished difference Result 5324 states and 6126 transitions. [2018-11-18 14:58:06,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:58:06,345 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 170 [2018-11-18 14:58:06,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:58:06,353 INFO L225 Difference]: With dead ends: 5324 [2018-11-18 14:58:06,354 INFO L226 Difference]: Without dead ends: 2717 [2018-11-18 14:58:06,358 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 324 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2018-11-18 14:58:06,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2018-11-18 14:58:06,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 2715. [2018-11-18 14:58:06,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2715 states. [2018-11-18 14:58:06,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2715 states to 2715 states and 3090 transitions. [2018-11-18 14:58:06,481 INFO L78 Accepts]: Start accepts. Automaton has 2715 states and 3090 transitions. Word has length 170 [2018-11-18 14:58:06,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:58:06,482 INFO L480 AbstractCegarLoop]: Abstraction has 2715 states and 3090 transitions. [2018-11-18 14:58:06,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 14:58:06,482 INFO L276 IsEmpty]: Start isEmpty. Operand 2715 states and 3090 transitions. [2018-11-18 14:58:06,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-11-18 14:58:06,485 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:58:06,486 INFO L375 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:58:06,486 INFO L423 AbstractCegarLoop]: === Iteration 19 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:58:06,486 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:58:06,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1716303886, now seen corresponding path program 1 times [2018-11-18 14:58:06,486 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:58:06,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:58:06,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:58:06,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:58:06,487 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:58:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:58:06,577 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-11-18 14:58:06,578 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:58:06,579 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:58:06,579 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 179 with the following transitions: [2018-11-18 14:58:06,579 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [26], [33], [36], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [76], [80], [83], [85], [89], [95], [99], [103], [109], [111], [117], [119], [122], [137], [138], [139], [140], [141], [142], [143], [145], [150], [153], [154], [155], [156], [158], [161], [165], [166], [174], [175], [205], [208], [212], [218], [219], [221], [226], [228], [231], [233], [238], [242], [244], [247], [251], [252], [256], [259], [261], [264], [274], [282], [285], [286], [287], [288], [289], [290], [291], [292], [293], [295], [296], [297], [298], [301], [302], [303], [304], [305], [307], [308], [309], [310], [313], [314], [315], [316], [321], [322], [325], [326], [327], [328], [329], [330], [335], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [349], [350], [351], [353], [354], [355], [356] [2018-11-18 14:58:06,580 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:58:06,581 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:58:07,214 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:58:07,214 INFO L272 AbstractInterpreter]: Visited 139 different actions 555 times. Merged at 17 different actions 37 times. Never widened. Performed 17134 root evaluator evaluations with a maximum evaluation depth of 5. Performed 17134 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 5 fixpoints after 2 different actions. Largest state had 132 variables. [2018-11-18 14:58:07,219 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:58:07,219 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:58:07,219 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:58:07,219 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5911672e-38ff-4b70-ace9-ca240f118d4f/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:58:07,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:58:07,228 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:58:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:58:07,304 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:58:07,406 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 35 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-11-18 14:58:07,407 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:58:07,592 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-11-18 14:58:07,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:58:07,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6, 9] total 19 [2018-11-18 14:58:07,608 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:58:07,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 14:58:07,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 14:58:07,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2018-11-18 14:58:07,609 INFO L87 Difference]: Start difference. First operand 2715 states and 3090 transitions. Second operand 9 states. [2018-11-18 14:58:07,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:58:07,946 INFO L93 Difference]: Finished difference Result 5093 states and 5984 transitions. [2018-11-18 14:58:07,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:58:07,946 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2018-11-18 14:58:07,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:58:07,947 INFO L225 Difference]: With dead ends: 5093 [2018-11-18 14:58:07,947 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 14:58:07,953 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 343 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2018-11-18 14:58:07,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 14:58:07,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 14:58:07,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 14:58:07,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 14:58:07,954 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 178 [2018-11-18 14:58:07,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:58:07,954 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:58:07,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 14:58:07,954 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 14:58:07,955 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 14:58:07,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 14:58:07,997 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,000 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,060 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,063 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,118 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,120 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,135 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,136 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,146 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,147 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,150 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,151 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,160 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,161 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,164 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,185 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,185 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,200 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,218 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,245 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,247 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,372 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 20 [2018-11-18 14:58:08,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,407 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,469 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,471 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,475 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,485 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,508 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,509 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,578 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,580 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,661 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,661 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,664 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,677 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,698 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,748 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,750 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,797 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,799 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,945 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,950 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,951 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,965 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,997 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,998 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:08,999 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:09,001 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:09,007 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:09,017 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:09,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:09,022 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:09,025 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:09,026 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:09,030 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:09,031 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:09,037 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:09,038 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:09,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:09,052 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:09,150 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:09,151 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:58:09,372 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 28 [2018-11-18 14:58:09,501 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 31 [2018-11-18 14:58:09,799 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 38 [2018-11-18 14:58:10,207 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 33 [2018-11-18 14:58:10,852 WARN L180 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 65 [2018-11-18 14:58:11,716 WARN L180 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 68 [2018-11-18 14:58:11,911 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 30 [2018-11-18 14:58:12,241 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 30 [2018-11-18 14:58:12,703 WARN L180 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 52 [2018-11-18 14:58:12,843 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 30 [2018-11-18 14:58:12,993 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 28 [2018-11-18 14:58:13,128 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 30 [2018-11-18 14:58:13,241 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 28 [2018-11-18 14:58:13,553 WARN L180 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 50 [2018-11-18 14:58:13,689 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 30 [2018-11-18 14:58:14,111 WARN L180 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 60 [2018-11-18 14:58:14,764 WARN L180 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 60 [2018-11-18 14:58:15,167 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 32 [2018-11-18 14:58:15,336 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 30 [2018-11-18 14:58:15,488 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 33 [2018-11-18 14:58:15,623 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 30 [2018-11-18 14:58:15,967 WARN L180 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 33 [2018-11-18 14:58:15,969 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 623 629) the Hoare annotation is: true [2018-11-18 14:58:15,970 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 623 629) no Hoare annotation was computed. [2018-11-18 14:58:15,970 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 630 638) no Hoare annotation was computed. [2018-11-18 14:58:15,970 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 630 638) the Hoare annotation is: true [2018-11-18 14:58:15,970 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 630 638) no Hoare annotation was computed. [2018-11-18 14:58:15,970 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 547 569) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 14:58:15,970 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 547 569) no Hoare annotation was computed. [2018-11-18 14:58:15,970 INFO L421 ceAbstractionStarter]: At program point L559(line 559) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= main_~tmp~7 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 14:58:15,970 INFO L421 ceAbstractionStarter]: At program point L559-1(line 559) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= main_~tmp~7 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 14:58:15,970 INFO L425 ceAbstractionStarter]: For program point L557(lines 557 564) no Hoare annotation was computed. [2018-11-18 14:58:15,970 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 547 569) no Hoare annotation was computed. [2018-11-18 14:58:15,970 INFO L425 ceAbstractionStarter]: For program point L557-1(lines 557 564) no Hoare annotation was computed. [2018-11-18 14:58:15,970 INFO L425 ceAbstractionStarter]: For program point L555(line 555) no Hoare annotation was computed. [2018-11-18 14:58:15,970 INFO L421 ceAbstractionStarter]: At program point L554(line 554) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 14:58:15,970 INFO L421 ceAbstractionStarter]: At program point L553(line 553) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 14:58:15,970 INFO L421 ceAbstractionStarter]: At program point L553-1(line 553) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 14:58:15,970 INFO L421 ceAbstractionStarter]: At program point L190(line 190) the Hoare annotation is: (let ((.cse0 (< 1 ~waterLevel~0)) (.cse6 (not (= 1 |old(~pumpRunning~0)|))) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= ~waterLevel~0 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse6 .cse2) (or .cse5 .cse0 .cse1 .cse2) (or .cse0 .cse6 .cse2 .cse4 .cse3) (or .cse5 .cse1 .cse2 .cse7) (or .cse1 .cse2 .cse3 .cse7))) [2018-11-18 14:58:15,971 INFO L425 ceAbstractionStarter]: For program point L188(lines 188 196) no Hoare annotation was computed. [2018-11-18 14:58:15,971 INFO L421 ceAbstractionStarter]: At program point L186(line 186) the Hoare annotation is: (let ((.cse0 (< 1 ~waterLevel~0)) (.cse6 (not (= 1 |old(~pumpRunning~0)|))) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= ~waterLevel~0 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse6 .cse2) (or .cse5 .cse0 .cse1 .cse2) (or .cse0 .cse6 .cse2 .cse4 .cse3) (or .cse5 .cse1 .cse2 .cse7) (or .cse1 .cse2 .cse3 .cse7))) [2018-11-18 14:58:15,971 INFO L425 ceAbstractionStarter]: For program point L186-1(line 186) no Hoare annotation was computed. [2018-11-18 14:58:15,971 INFO L425 ceAbstractionStarter]: For program point L184(lines 184 201) no Hoare annotation was computed. [2018-11-18 14:58:15,971 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 180 204) the Hoare annotation is: (let ((.cse2 (< 1 ~waterLevel~0)) (.cse3 (not (= 1 |old(~pumpRunning~0)|))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= ~methaneLevelCritical~0 1))) (.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse7 (<= 3 ~waterLevel~0)) (.cse4 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse2 .cse3 .cse4 .cse0 .cse5) (or .cse6 .cse7 .cse4 .cse0 .cse5) (or .cse1 .cse6 .cse0 .cse7 .cse4))) [2018-11-18 14:58:15,971 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 180 204) no Hoare annotation was computed. [2018-11-18 14:58:15,971 INFO L421 ceAbstractionStarter]: At program point L199(line 199) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< 1 ~waterLevel~0)) (.cse1 (not (= 1 |old(~pumpRunning~0)|))) (.cse7 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (<= 3 ~waterLevel~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse2 .cse6 .cse3) (or .cse7 .cse0 .cse1 .cse2) (or .cse7 .cse4 .cse6 .cse5 .cse2))) [2018-11-18 14:58:15,971 INFO L425 ceAbstractionStarter]: For program point L199-1(lines 180 204) no Hoare annotation was computed. [2018-11-18 14:58:15,971 INFO L421 ceAbstractionStarter]: At program point L194(line 194) the Hoare annotation is: (let ((.cse0 (< 1 ~waterLevel~0)) (.cse6 (not (= 1 |old(~pumpRunning~0)|))) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= ~waterLevel~0 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse6 .cse2) (or .cse5 .cse0 .cse1 .cse2) (or .cse0 .cse6 .cse2 .cse4 .cse3) (or .cse5 .cse1 .cse2 .cse7) (or .cse1 .cse2 .cse3 .cse7))) [2018-11-18 14:58:15,971 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 275 283) no Hoare annotation was computed. [2018-11-18 14:58:15,971 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 275 283) the Hoare annotation is: true [2018-11-18 14:58:15,971 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 275 283) no Hoare annotation was computed. [2018-11-18 14:58:15,971 INFO L425 ceAbstractionStarter]: For program point L348(lines 348 352) no Hoare annotation was computed. [2018-11-18 14:58:15,971 INFO L428 ceAbstractionStarter]: At program point L346(line 346) the Hoare annotation is: true [2018-11-18 14:58:15,971 INFO L425 ceAbstractionStarter]: For program point L348-2(lines 348 352) no Hoare annotation was computed. [2018-11-18 14:58:15,971 INFO L428 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 339 357) the Hoare annotation is: true [2018-11-18 14:58:15,971 INFO L425 ceAbstractionStarter]: For program point L346-1(line 346) no Hoare annotation was computed. [2018-11-18 14:58:15,971 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 339 357) no Hoare annotation was computed. [2018-11-18 14:58:15,972 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 339 357) no Hoare annotation was computed. [2018-11-18 14:58:15,972 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 616 622) no Hoare annotation was computed. [2018-11-18 14:58:15,972 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 616 622) the Hoare annotation is: true [2018-11-18 14:58:15,972 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 534 543) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 14:58:15,972 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 534 543) no Hoare annotation was computed. [2018-11-18 14:58:15,972 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 534 543) no Hoare annotation was computed. [2018-11-18 14:58:15,972 INFO L428 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 264 274) the Hoare annotation is: true [2018-11-18 14:58:15,972 INFO L428 ceAbstractionStarter]: At program point L269(line 269) the Hoare annotation is: true [2018-11-18 14:58:15,972 INFO L425 ceAbstractionStarter]: For program point L269-1(line 269) no Hoare annotation was computed. [2018-11-18 14:58:15,972 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 264 274) no Hoare annotation was computed. [2018-11-18 14:58:15,972 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 264 274) no Hoare annotation was computed. [2018-11-18 14:58:15,972 INFO L421 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 256 263) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (< 1 ~waterLevel~0)) (.cse2 (not (= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 (or (not (= ~methaneLevelCritical~0 1)) .cse2 .cse3)))) [2018-11-18 14:58:15,972 INFO L425 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 256 263) no Hoare annotation was computed. [2018-11-18 14:58:15,972 INFO L425 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 256 263) no Hoare annotation was computed. [2018-11-18 14:58:15,972 INFO L425 ceAbstractionStarter]: For program point L443(lines 443 449) no Hoare annotation was computed. [2018-11-18 14:58:15,972 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 439 452) no Hoare annotation was computed. [2018-11-18 14:58:15,972 INFO L428 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 439 452) the Hoare annotation is: true [2018-11-18 14:58:15,972 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 439 452) no Hoare annotation was computed. [2018-11-18 14:58:15,972 INFO L421 ceAbstractionStarter]: At program point L225(line 225) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< 1 ~waterLevel~0)) (.cse1 (not (= 1 |old(~pumpRunning~0)|))) (.cse7 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (<= 3 ~waterLevel~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse2 .cse6 .cse3) (or .cse7 .cse0 .cse1 .cse2) (or .cse7 .cse4 .cse6 .cse5 .cse2))) [2018-11-18 14:58:15,972 INFO L425 ceAbstractionStarter]: For program point L225-1(lines 206 230) no Hoare annotation was computed. [2018-11-18 14:58:15,972 INFO L421 ceAbstractionStarter]: At program point L220(line 220) the Hoare annotation is: (let ((.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse0 (< 1 ~waterLevel~0)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse6 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= ~waterLevel~0 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse6 .cse2) (or .cse5 .cse0 .cse1 .cse2) (or .cse5 .cse1 .cse2 .cse7) (or .cse0 (and (= processEnvironment_~tmp~3 0) .cse4) .cse6 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse7))) [2018-11-18 14:58:15,973 INFO L421 ceAbstractionStarter]: At program point L216(line 216) the Hoare annotation is: (let ((.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse0 (< 1 ~waterLevel~0)) (.cse5 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (= ~waterLevel~0 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse4 .cse0 .cse5 .cse2) (or .cse4 .cse0 .cse1 .cse2) (or .cse4 .cse1 .cse2 .cse6) (or .cse0 .cse5 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse6))) [2018-11-18 14:58:15,973 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 206 230) no Hoare annotation was computed. [2018-11-18 14:58:15,973 INFO L425 ceAbstractionStarter]: For program point L214(lines 214 222) no Hoare annotation was computed. [2018-11-18 14:58:15,973 INFO L421 ceAbstractionStarter]: At program point L212(line 212) the Hoare annotation is: (let ((.cse0 (< 1 ~waterLevel~0)) (.cse6 (not (= 1 |old(~pumpRunning~0)|))) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= ~waterLevel~0 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse6 .cse2) (or .cse5 .cse0 .cse1 .cse2) (or .cse0 .cse6 .cse2 .cse4 .cse3) (or .cse5 .cse1 .cse2 .cse7) (or .cse1 .cse2 .cse3 .cse7))) [2018-11-18 14:58:15,973 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 206 230) the Hoare annotation is: (let ((.cse2 (< 1 ~waterLevel~0)) (.cse3 (not (= 1 |old(~pumpRunning~0)|))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= ~methaneLevelCritical~0 1))) (.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse7 (<= 3 ~waterLevel~0)) (.cse4 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse2 .cse3 .cse4 .cse0 .cse5) (or .cse6 .cse7 .cse4 .cse0 .cse5) (or .cse1 .cse6 .cse0 .cse7 .cse4))) [2018-11-18 14:58:15,973 INFO L425 ceAbstractionStarter]: For program point L212-1(line 212) no Hoare annotation was computed. [2018-11-18 14:58:15,973 INFO L425 ceAbstractionStarter]: For program point L210(lines 210 227) no Hoare annotation was computed. [2018-11-18 14:58:15,973 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 146 152) no Hoare annotation was computed. [2018-11-18 14:58:15,973 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 146 152) the Hoare annotation is: true [2018-11-18 14:58:15,973 INFO L421 ceAbstractionStarter]: At program point L97(lines 54 99) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse1 (< ~waterLevel~0 3)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse5 (= ~pumpRunning~0 1)) (.cse3 (= test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (<= ~waterLevel~0 1) .cse4 .cse3) (and .cse1 .cse5 .cse2 .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse1 .cse4 .cse5 .cse3))) [2018-11-18 14:58:15,973 INFO L425 ceAbstractionStarter]: For program point L64(lines 64 70) no Hoare annotation was computed. [2018-11-18 14:58:15,973 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 44 107) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 14:58:15,973 INFO L425 ceAbstractionStarter]: For program point L64-1(lines 64 70) no Hoare annotation was computed. [2018-11-18 14:58:15,973 INFO L425 ceAbstractionStarter]: For program point L56(lines 56 60) no Hoare annotation was computed. [2018-11-18 14:58:15,973 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 44 107) no Hoare annotation was computed. [2018-11-18 14:58:15,973 INFO L425 ceAbstractionStarter]: For program point L54-1(lines 54 99) no Hoare annotation was computed. [2018-11-18 14:58:15,973 INFO L421 ceAbstractionStarter]: At program point L100(lines 53 101) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 14:58:15,974 INFO L425 ceAbstractionStarter]: For program point L90(lines 90 94) no Hoare annotation was computed. [2018-11-18 14:58:15,974 INFO L421 ceAbstractionStarter]: At program point L90-2(lines 84 95) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse1 (< ~waterLevel~0 3)) (.cse5 (= ~pumpRunning~0 1)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse3 (= test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= ~systemActive~0 1)) (and .cse4 .cse1 .cse5 .cse3) (and .cse0 .cse4 .cse1 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and .cse1 .cse5 .cse2 .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 14:58:15,974 INFO L425 ceAbstractionStarter]: For program point L55(lines 54 99) no Hoare annotation was computed. [2018-11-18 14:58:15,974 INFO L425 ceAbstractionStarter]: For program point L84(lines 84 95) no Hoare annotation was computed. [2018-11-18 14:58:15,974 INFO L421 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 1)) (.cse1 (= ~methaneLevelCritical~0 1)) (.cse2 (= test_~splverifierCounter~0 0)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse0 (< ~waterLevel~0 3))) (or (and (= 0 ~pumpRunning~0) .cse0 .cse1 .cse2) (not (= ~systemActive~0 1)) (and .cse3 .cse0 .cse4 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse4 .cse1 .cse2) (and .cse2 .cse3 .cse0 (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 14:58:15,974 INFO L425 ceAbstractionStarter]: For program point L74(lines 74 80) no Hoare annotation was computed. [2018-11-18 14:58:15,974 INFO L425 ceAbstractionStarter]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2018-11-18 14:58:15,974 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 44 107) no Hoare annotation was computed. [2018-11-18 14:58:15,974 INFO L421 ceAbstractionStarter]: At program point L66(line 66) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse1 (< ~waterLevel~0 3)) (.cse5 (= ~pumpRunning~0 1)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse3 (= test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= ~systemActive~0 1)) (and .cse4 .cse1 .cse5 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (<= ~waterLevel~0 1) .cse4 .cse3) (and .cse1 .cse5 .cse2 .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 14:58:15,974 INFO L421 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 231 238) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)))) (.cse1 (<= 3 ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse2 .cse1))) [2018-11-18 14:58:15,974 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 231 238) no Hoare annotation was computed. [2018-11-18 14:58:15,974 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 231 238) no Hoare annotation was computed. [2018-11-18 14:58:15,974 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 453 461) no Hoare annotation was computed. [2018-11-18 14:58:15,974 INFO L428 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 453 461) the Hoare annotation is: true [2018-11-18 14:58:15,974 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 453 461) no Hoare annotation was computed. [2018-11-18 14:58:15,974 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:58:15,974 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (or (< ~waterLevel~0 3) (< 2 |old(~waterLevel~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 14:58:15,975 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:58:15,975 INFO L425 ceAbstractionStarter]: For program point activatePumpEXIT(lines 239 255) no Hoare annotation was computed. [2018-11-18 14:58:15,975 INFO L421 ceAbstractionStarter]: At program point L250(line 250) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (<= 3 ~waterLevel~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~waterLevel~0 2))) (or .cse1 .cse3 .cse2 (not (= ~methaneLevelCritical~0 0)) (and .cse4 (= ~methaneLevelCritical~0 activatePump_~tmp~4))) (or .cse0 .cse1 .cse2 (not (= ~waterLevel~0 1))) (or .cse0 .cse1 .cse4 .cse3 .cse2))) [2018-11-18 14:58:15,975 INFO L425 ceAbstractionStarter]: For program point L250-1(lines 239 255) no Hoare annotation was computed. [2018-11-18 14:58:15,975 INFO L421 ceAbstractionStarter]: At program point activatePumpENTRY(lines 239 255) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (<= 3 ~waterLevel~0)) (.cse3 (not (= ~systemActive~0 1))) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2018-11-18 14:58:15,975 INFO L425 ceAbstractionStarter]: For program point L246(lines 246 252) no Hoare annotation was computed. [2018-11-18 14:58:15,975 INFO L421 ceAbstractionStarter]: At program point L244(line 244) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (<= 3 ~waterLevel~0)) (.cse3 (not (= ~systemActive~0 1))) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2018-11-18 14:58:15,975 INFO L425 ceAbstractionStarter]: For program point L244-1(line 244) no Hoare annotation was computed. [2018-11-18 14:58:15,975 INFO L428 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 430 438) the Hoare annotation is: true [2018-11-18 14:58:15,975 INFO L425 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 430 438) no Hoare annotation was computed. [2018-11-18 14:58:15,976 INFO L425 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 430 438) no Hoare annotation was computed. [2018-11-18 14:58:15,976 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 320 338) no Hoare annotation was computed. [2018-11-18 14:58:15,976 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 333) no Hoare annotation was computed. [2018-11-18 14:58:15,976 INFO L428 ceAbstractionStarter]: At program point L327(line 327) the Hoare annotation is: true [2018-11-18 14:58:15,976 INFO L425 ceAbstractionStarter]: For program point L329-2(lines 329 333) no Hoare annotation was computed. [2018-11-18 14:58:15,976 INFO L425 ceAbstractionStarter]: For program point L327-1(line 327) no Hoare annotation was computed. [2018-11-18 14:58:15,976 INFO L428 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 320 338) the Hoare annotation is: true [2018-11-18 14:58:15,976 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 320 338) no Hoare annotation was computed. [2018-11-18 14:58:15,976 INFO L421 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 386 397) the Hoare annotation is: (let ((.cse3 (not (= 1 ~pumpRunning~0))) (.cse6 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse1 (not (= |old(~methaneLevelCritical~0)| 1))) (.cse7 (not (= 0 ~pumpRunning~0))) (.cse4 (= ~methaneLevelCritical~0 1)) (.cse0 (<= 3 ~waterLevel~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (or .cse1 .cse2) .cse3 .cse4) (or (or .cse2 .cse3) .cse5 .cse0 .cse6) (or .cse0 (or .cse7 .cse2 .cse6) .cse5) (or .cse1 .cse7 .cse4 .cse0 .cse2))) [2018-11-18 14:58:15,976 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 386 397) no Hoare annotation was computed. [2018-11-18 14:58:15,976 INFO L425 ceAbstractionStarter]: For program point L390-1(lines 386 397) no Hoare annotation was computed. [2018-11-18 14:58:15,976 INFO L428 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 398 406) the Hoare annotation is: true [2018-11-18 14:58:15,976 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 398 406) no Hoare annotation was computed. [2018-11-18 14:58:15,976 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 398 406) no Hoare annotation was computed. [2018-11-18 14:58:15,976 INFO L428 ceAbstractionStarter]: At program point L483-3(lines 483 497) the Hoare annotation is: true [2018-11-18 14:58:15,976 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 473 502) no Hoare annotation was computed. [2018-11-18 14:58:15,976 INFO L428 ceAbstractionStarter]: At program point L479(line 479) the Hoare annotation is: true [2018-11-18 14:58:15,976 INFO L425 ceAbstractionStarter]: For program point L479-1(line 479) no Hoare annotation was computed. [2018-11-18 14:58:15,976 INFO L428 ceAbstractionStarter]: At program point L498(lines 473 502) the Hoare annotation is: true [2018-11-18 14:58:15,976 INFO L425 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-11-18 14:58:15,976 INFO L425 ceAbstractionStarter]: For program point L484(line 484) no Hoare annotation was computed. [2018-11-18 14:58:15,976 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 473 502) the Hoare annotation is: true [2018-11-18 14:58:15,976 INFO L425 ceAbstractionStarter]: For program point L487(lines 487 491) no Hoare annotation was computed. [2018-11-18 14:58:15,977 INFO L428 ceAbstractionStarter]: At program point L487-1(lines 487 491) the Hoare annotation is: true [2018-11-18 14:58:15,977 INFO L425 ceAbstractionStarter]: For program point L483-1(lines 483 497) no Hoare annotation was computed. [2018-11-18 14:58:15,977 INFO L421 ceAbstractionStarter]: At program point L128(line 128) the Hoare annotation is: (let ((.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 1 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse16 (= ~waterLevel~0 0))) (let ((.cse9 (= ~waterLevel~0 1)) (.cse11 (= ~waterLevel~0 2)) (.cse8 (not (= |old(~waterLevel~0)| 1))) (.cse0 (<= 3 |old(~waterLevel~0)|)) (.cse13 (not .cse16)) (.cse14 (= |old(~waterLevel~0)| 0)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse6 (< 1 |old(~waterLevel~0)|)) (.cse15 (or .cse5 .cse1 .cse2)) (.cse12 (<= ~waterLevel~0 1)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse7 (not (= 0 |old(~pumpRunning~0)|))) (.cse10 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7 .cse2) (or (or .cse8 .cse1 .cse2) .cse9 .cse3) (or (or .cse1 .cse2 .cse10) .cse3 .cse11) (or .cse6 .cse2 (and .cse12 .cse13) .cse1 .cse14 .cse3) (or .cse7 .cse2 .cse3 .cse10) (or .cse6 .cse7 .cse2 .cse3) (or (and (or .cse9 .cse11) (= ~pumpRunning~0 1)) (or (and .cse10 .cse8) .cse15)) (or .cse0 .cse13 .cse15 .cse14) (or .cse16 (or .cse2 (not .cse14) .cse1 .cse3)) (or .cse6 .cse15 (and .cse12 .cse4)) (or .cse5 .cse7 .cse2 .cse10)))) [2018-11-18 14:58:15,977 INFO L425 ceAbstractionStarter]: For program point L126(lines 125 144) no Hoare annotation was computed. [2018-11-18 14:58:15,977 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 122 145) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse7 (not (= 1 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse10 (= |old(~waterLevel~0)| 0)) (.cse16 (= ~waterLevel~0 0))) (let ((.cse3 (= 1 ~waterLevel~0)) (.cse11 (not .cse16)) (.cse4 (not (= |old(~waterLevel~0)| 1))) (.cse17 (not .cse10)) (.cse13 (= ~waterLevel~0 2)) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse14 (not (= |old(~waterLevel~0)| 2))) (.cse6 (<= 3 |old(~waterLevel~0)|)) (.cse15 (or .cse0 .cse7 .cse2)) (.cse5 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse9 (< 1 |old(~waterLevel~0)|)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse12 (<= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse2 .cse6 .cse7 .cse8) (or .cse9 .cse1 .cse10 .cse2 .cse11 .cse8) (or .cse1 .cse6 .cse2 .cse5 .cse8) (or .cse0 .cse1 .cse5 .cse6 .cse2) (or (and .cse12 .cse11) .cse9 .cse7 .cse10 .cse2 .cse8) (or (or .cse13 .cse3) (or (and .cse14 .cse4) .cse15)) (or .cse9 .cse12 .cse1 .cse2 .cse8) (or .cse3 (or (or .cse2 .cse4) .cse7) .cse8) (or .cse6 .cse15 .cse10 .cse11) (or .cse16 (or .cse2 .cse17 .cse7 .cse8)) (or .cse9 .cse12 .cse15) (or (= ~waterLevel~0 1) (or .cse1 .cse2 .cse4) .cse8) (or .cse13 (or .cse7 .cse2 .cse14) .cse8) (or (or .cse1 .cse17) .cse2 .cse8 .cse16) (or .cse0 .cse1 .cse13 .cse2 .cse14) (or .cse1 .cse13 .cse2 .cse8 .cse14) (or .cse6 .cse15 .cse5) (or .cse0 .cse9 .cse1 .cse2 .cse12)))) [2018-11-18 14:58:15,977 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 122 145) no Hoare annotation was computed. [2018-11-18 14:58:15,978 INFO L421 ceAbstractionStarter]: At program point L135(line 135) the Hoare annotation is: (let ((.cse14 (<= ~waterLevel~0 1)) (.cse13 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse11 (= |old(~waterLevel~0)| 0))) (let ((.cse8 (= ~waterLevel~0 1)) (.cse15 (not .cse11)) (.cse2 (<= 3 |old(~waterLevel~0)|)) (.cse0 (and .cse14 .cse13)) (.cse7 (not (= |old(~waterLevel~0)| 1))) (.cse3 (not (= 1 |old(~pumpRunning~0)|))) (.cse12 (= ~waterLevel~0 0)) (.cse16 (= ~waterLevel~0 2)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse9 (not (= |old(~waterLevel~0)| 2))) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse10 (< 1 |old(~waterLevel~0)|)) (.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse1 (= 1 ~waterLevel~0) .cse7) (or .cse8 (or .cse3 .cse1 .cse9) .cse4) (or .cse10 .cse6 .cse11 .cse1 (not .cse12) .cse4) (or .cse6 .cse2 .cse1 .cse13 .cse4) (or .cse5 .cse6 .cse13 .cse2 .cse1) (or .cse10 .cse14 .cse6 .cse1 .cse4) (or .cse12 (or .cse1 .cse15 .cse3 .cse4)) (or .cse8 (or .cse6 .cse1 .cse7) .cse4) (or (or .cse6 .cse15) .cse1 .cse4 .cse12) (or .cse5 .cse6 .cse16 .cse1 .cse9) (or .cse2 (or .cse5 .cse3 .cse1) .cse0) (or (or .cse7 .cse3 .cse1) .cse12 .cse4) (or .cse6 .cse16 .cse1 .cse4 .cse9) (or .cse5 .cse10 .cse6 .cse1 .cse14)))) [2018-11-18 14:58:15,978 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 122 145) no Hoare annotation was computed. [2018-11-18 14:58:15,978 INFO L421 ceAbstractionStarter]: At program point L133(lines 133 139) the Hoare annotation is: (let ((.cse14 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse18 (= ~pumpRunning~0 1)) (.cse19 (<= ~waterLevel~0 1)) (.cse8 (= |old(~waterLevel~0)| 0))) (let ((.cse16 (not .cse8)) (.cse10 (= ~waterLevel~0 1)) (.cse2 (and (= 0 ~pumpRunning~0) .cse19)) (.cse3 (<= 3 |old(~waterLevel~0)|)) (.cse13 (= ~waterLevel~0 2)) (.cse11 (not (= |old(~waterLevel~0)| 2))) (.cse12 (not (= ~methaneLevelCritical~0 1))) (.cse6 (< 1 |old(~waterLevel~0)|)) (.cse7 (not (= 0 |old(~pumpRunning~0)|))) (.cse17 (and .cse19 .cse18)) (.cse0 (and .cse19 .cse14)) (.cse15 (not (= |old(~waterLevel~0)| 1))) (.cse4 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse9 (= ~waterLevel~0 0)) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse7 .cse8 .cse1 (not .cse9) .cse5) (or .cse10 (or .cse4 .cse1 .cse11) .cse5) (or .cse12 .cse7 (and .cse13 .cse14) .cse1 .cse11) (or .cse12 .cse7 .cse1 (and (= 1 ~waterLevel~0) .cse14) .cse15) (or .cse9 (or .cse7 .cse16) .cse1 .cse5) (or .cse9 (or .cse1 .cse16 .cse4 .cse5)) (or .cse10 (or .cse7 .cse1 .cse15) .cse5) (or .cse2 .cse3 (or .cse12 .cse4 .cse1) .cse0) (or .cse6 .cse7 .cse17 .cse1 .cse5 .cse0) (or .cse7 (and .cse13 .cse18) .cse1 .cse5 .cse11) (or .cse12 .cse6 .cse7 .cse17 .cse1 .cse0) (or (or .cse15 .cse4 .cse1) .cse9 .cse5)))) [2018-11-18 14:58:15,978 INFO L425 ceAbstractionStarter]: For program point L578-1(line 578) no Hoare annotation was computed. [2018-11-18 14:58:15,978 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification3_spec__1EXIT(lines 571 603) no Hoare annotation was computed. [2018-11-18 14:58:15,978 INFO L428 ceAbstractionStarter]: At program point __utac_acc__Specification3_spec__1ENTRY(lines 571 603) the Hoare annotation is: true [2018-11-18 14:58:15,978 INFO L421 ceAbstractionStarter]: At program point L594(line 594) the Hoare annotation is: (let ((.cse1 (< 1 ~waterLevel~0)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= 0 ~pumpRunning~0))) (.cse6 (not (= ~waterLevel~0 2))) (.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse5 (not (= 1 ~pumpRunning~0))) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse3 .cse4 .cse6) (or .cse1 .cse5 .cse3 .cse4) (or .cse0 .cse2 .cse3 .cse6) (or .cse0 (<= 3 ~waterLevel~0) .cse5 .cse3))) [2018-11-18 14:58:15,979 INFO L425 ceAbstractionStarter]: For program point L590(lines 590 596) no Hoare annotation was computed. [2018-11-18 14:58:15,979 INFO L421 ceAbstractionStarter]: At program point L588(line 588) the Hoare annotation is: (let ((.cse1 (< 1 ~waterLevel~0)) (.cse2 (not (= 0 ~pumpRunning~0))) (.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse6 (<= 3 ~waterLevel~0)) (.cse5 (not (= 1 ~pumpRunning~0))) (.cse3 (not (= ~systemActive~0 1))) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 .cse3 .cse4) (or .cse0 .cse2 .cse3 (not (= ~waterLevel~0 2))) (or .cse0 .cse6 .cse5 .cse3) (or .cse6 .cse5 .cse3 (= __utac_acc__Specification3_spec__1_~tmp~8 0) .cse4))) [2018-11-18 14:58:15,979 INFO L425 ceAbstractionStarter]: For program point L588-1(line 588) no Hoare annotation was computed. [2018-11-18 14:58:15,979 INFO L425 ceAbstractionStarter]: For program point L586(lines 586 599) no Hoare annotation was computed. [2018-11-18 14:58:15,979 INFO L425 ceAbstractionStarter]: For program point L586-1(lines 571 603) no Hoare annotation was computed. [2018-11-18 14:58:15,979 INFO L421 ceAbstractionStarter]: At program point L584(line 584) the Hoare annotation is: (let ((.cse1 (not (= 0 ~pumpRunning~0))) (.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse3 (<= 3 ~waterLevel~0)) (.cse4 (not (= 1 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (< 1 ~waterLevel~0) .cse1 .cse2) (or .cse3 .cse4 (= ~waterLevel~0 0) .cse2 (= __utac_acc__Specification3_spec__1_~tmp~8 0) (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 .cse2 (not (= ~waterLevel~0 2))) (or .cse0 .cse3 .cse4 .cse2))) [2018-11-18 14:58:15,979 INFO L425 ceAbstractionStarter]: For program point L584-1(line 584) no Hoare annotation was computed. [2018-11-18 14:58:15,979 INFO L425 ceAbstractionStarter]: For program point L580(lines 580 600) no Hoare annotation was computed. [2018-11-18 14:58:15,979 INFO L428 ceAbstractionStarter]: At program point L578(line 578) the Hoare annotation is: true [2018-11-18 14:58:15,980 INFO L421 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 362 373) the Hoare annotation is: (let ((.cse3 (not (= ~systemActive~0 1))) (.cse1 (= ~waterLevel~0 0))) (let ((.cse11 (= ~waterLevel~0 2)) (.cse10 (not (= |old(~waterLevel~0)| 2))) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse13 (not (= |old(~waterLevel~0)| 1))) (.cse12 (= ~waterLevel~0 1)) (.cse7 (not .cse1)) (.cse0 (= |old(~waterLevel~0)| 0)) (.cse6 (< 1 |old(~waterLevel~0)|)) (.cse9 (<= ~waterLevel~0 1)) (.cse2 (not (= 1 ~pumpRunning~0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse8 (or (= ~pumpRunning~0 0) .cse3))) (and (or (not .cse0) .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7 .cse2 .cse0 .cse8) (or .cse5 .cse6 .cse2 .cse9 .cse8) (or (or .cse2 .cse8 .cse10) .cse4 .cse11) (or (or .cse12 .cse11) (or (and (or .cse5 .cse8 .cse10) (or .cse5 .cse3 .cse13)) .cse2)) (or (or .cse2 .cse3 .cse13) .cse12 .cse4) (or .cse7 (<= 3 |old(~waterLevel~0)|) .cse2 .cse0 .cse4 .cse8) (or .cse6 .cse9 .cse2 .cse4 .cse8)))) [2018-11-18 14:58:15,980 INFO L425 ceAbstractionStarter]: For program point L366-1(lines 362 373) no Hoare annotation was computed. [2018-11-18 14:58:15,980 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 362 373) no Hoare annotation was computed. [2018-11-18 14:58:15,980 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 527 533) no Hoare annotation was computed. [2018-11-18 14:58:15,980 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 527 533) the Hoare annotation is: true [2018-11-18 14:58:15,980 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:58:15,980 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-11-18 14:58:15,980 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 14:58:15,980 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:58:15,980 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 154 178) the Hoare annotation is: (let ((.cse2 (< 1 ~waterLevel~0)) (.cse3 (not (= 1 |old(~pumpRunning~0)|))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= ~methaneLevelCritical~0 1))) (.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse7 (<= 3 ~waterLevel~0)) (.cse4 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse2 .cse3 .cse4 .cse0 .cse5) (or .cse6 .cse7 .cse4 .cse0 .cse5) (or .cse1 .cse6 .cse0 .cse7 .cse4))) [2018-11-18 14:58:15,980 INFO L421 ceAbstractionStarter]: At program point L160(line 160) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< 1 ~waterLevel~0)) (.cse1 (not (= 1 |old(~pumpRunning~0)|))) (.cse7 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (<= 3 ~waterLevel~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse2 .cse6 .cse3) (or .cse7 .cse0 .cse1 .cse2) (or .cse7 .cse4 .cse6 .cse5 .cse2))) [2018-11-18 14:58:15,981 INFO L425 ceAbstractionStarter]: For program point L160-1(line 160) no Hoare annotation was computed. [2018-11-18 14:58:15,981 INFO L425 ceAbstractionStarter]: For program point L158(lines 158 175) no Hoare annotation was computed. [2018-11-18 14:58:15,981 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 154 178) no Hoare annotation was computed. [2018-11-18 14:58:15,981 INFO L421 ceAbstractionStarter]: At program point L173(line 173) the Hoare annotation is: (let ((.cse0 (< 1 ~waterLevel~0)) (.cse6 (not (= 1 |old(~pumpRunning~0)|))) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= ~waterLevel~0 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse6 .cse2) (or .cse5 .cse0 .cse1 .cse2) (or .cse0 .cse6 .cse2 .cse4 .cse3) (or .cse5 .cse1 .cse2 .cse7) (or .cse1 .cse2 .cse3 .cse7))) [2018-11-18 14:58:15,981 INFO L425 ceAbstractionStarter]: For program point L173-1(lines 154 178) no Hoare annotation was computed. [2018-11-18 14:58:15,981 INFO L421 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: (let ((.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse4 (< 1 ~waterLevel~0)) (.cse5 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse6 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (<= 3 ~waterLevel~0) .cse2 (and (<= ~waterLevel~0 1) .cse3)) (or .cse4 .cse5 .cse2 .cse6) (or .cse4 .cse1 .cse3 .cse2 .cse6) (or .cse0 .cse4 .cse5 .cse2) (or .cse1 .cse2 .cse6 (not (= ~waterLevel~0 2))))) [2018-11-18 14:58:15,981 INFO L421 ceAbstractionStarter]: At program point L164(line 164) the Hoare annotation is: (let ((.cse2 (<= 3 ~waterLevel~0)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse7 (not (= ~methaneLevelCritical~0 1))) (.cse5 (< 1 ~waterLevel~0)) (.cse6 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse8 (= processEnvironment__wrappee__highWaterSensor_~tmp~1 1)) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse3 .cse4) (or .cse7 .cse1 (and .cse8 .cse0) .cse2 .cse3 (and (<= ~waterLevel~0 1) .cse0)) (or .cse7 .cse5 .cse6 .cse3) (or (or (or .cse1 .cse3) (not (= ~waterLevel~0 2))) .cse8 .cse4))) [2018-11-18 14:58:15,981 INFO L425 ceAbstractionStarter]: For program point L162(lines 162 170) no Hoare annotation was computed. [2018-11-18 14:58:15,981 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 374 385) no Hoare annotation was computed. [2018-11-18 14:58:15,981 INFO L425 ceAbstractionStarter]: For program point L378-1(lines 374 385) no Hoare annotation was computed. [2018-11-18 14:58:15,982 INFO L421 ceAbstractionStarter]: At program point waterRiseENTRY(lines 374 385) the Hoare annotation is: (let ((.cse11 (not (= ~methaneLevelCritical~0 1))) (.cse8 (not (= 1 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1)))) (let ((.cse5 (or .cse11 .cse8 .cse2)) (.cse9 (= ~waterLevel~0 2)) (.cse10 (not (= |old(~waterLevel~0)| 2))) (.cse4 (= ~waterLevel~0 0)) (.cse1 (not (= |old(~waterLevel~0)| 0))) (.cse6 (< 1 |old(~waterLevel~0)|)) (.cse7 (<= ~waterLevel~0 1)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse13 (= ~waterLevel~0 1)) (.cse12 (not (= |old(~waterLevel~0)| 1)))) (and (or (or .cse0 .cse1) .cse2 .cse3 .cse4) (or .cse5 (<= 3 |old(~waterLevel~0)|) (< ~waterLevel~0 3)) (or .cse6 .cse7 (or .cse8 .cse2) .cse3) (or .cse8 .cse2 .cse9 .cse3 .cse10) (or .cse6 .cse5 .cse7) (or .cse11 .cse6 .cse0 .cse2 .cse7) (or .cse12 .cse13 .cse8 .cse2 .cse3) (or .cse11 .cse0 .cse9 .cse2 .cse10) (or .cse4 (or .cse1 .cse8 .cse2 .cse3)) (or .cse13 (or .cse0 .cse2 .cse12) .cse3) (or .cse6 .cse7 .cse0 .cse2 .cse3) (or .cse11 .cse0 .cse13 .cse2 .cse12)))) [2018-11-18 14:58:15,982 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 463 470) no Hoare annotation was computed. [2018-11-18 14:58:15,982 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 463 470) the Hoare annotation is: true [2018-11-18 14:58:15,982 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 467) no Hoare annotation was computed. [2018-11-18 14:58:15,982 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 463 470) no Hoare annotation was computed. [2018-11-18 14:58:16,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:58:16 BoogieIcfgContainer [2018-11-18 14:58:16,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:58:16,001 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:58:16,001 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:58:16,001 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:58:16,001 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:57:11" (3/4) ... [2018-11-18 14:58:16,003 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 14:58:16,007 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-18 14:58:16,007 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-18 14:58:16,007 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 14:58:16,008 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-11-18 14:58:16,008 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-18 14:58:16,008 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-18 14:58:16,008 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-18 14:58:16,008 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-18 14:58:16,008 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-18 14:58:16,008 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-18 14:58:16,008 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-18 14:58:16,008 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-18 14:58:16,008 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 14:58:16,008 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-18 14:58:16,008 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-11-18 14:58:16,008 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-18 14:58:16,008 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 14:58:16,009 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-18 14:58:16,009 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-18 14:58:16,009 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-18 14:58:16,009 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 14:58:16,009 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-18 14:58:16,009 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 14:58:16,009 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 14:58:16,009 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification3_spec__1 [2018-11-18 14:58:16,009 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-18 14:58:16,009 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-18 14:58:16,010 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 14:58:16,010 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 14:58:16,010 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-18 14:58:16,016 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2018-11-18 14:58:16,016 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 14:58:16,017 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 14:58:16,034 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((0 == pumpRunning && waterLevel < 3) && methaneLevelCritical == 1) && splverifierCounter == 0) || !(systemActive == 1)) || !(0 == \old(pumpRunning))) || (((0 == pumpRunning && waterLevel <= 1) && methaneLevelCritical == 0) && splverifierCounter == 0)) || (((waterLevel < 3 && pumpRunning == 1) && methaneLevelCritical == 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (((waterLevel < 3 && methaneLevelCritical == 0) && pumpRunning == 1) && splverifierCounter == 0) [2018-11-18 14:58:16,034 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 14:58:16,073 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5911672e-38ff-4b70-ace9-ca240f118d4f/bin-2019/utaipan/witness.graphml [2018-11-18 14:58:16,073 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:58:16,074 INFO L168 Benchmark]: Toolchain (without parser) took 65995.64 ms. Allocated memory was 1.0 GB in the beginning and 4.4 GB in the end (delta: 3.4 GB). Free memory was 956.4 MB in the beginning and 4.0 GB in the end (delta: -3.0 GB). Peak memory consumption was 404.0 MB. Max. memory is 11.5 GB. [2018-11-18 14:58:16,074 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:58:16,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -192.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-11-18 14:58:16,075 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:58:16,075 INFO L168 Benchmark]: Boogie Preprocessor took 27.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:58:16,075 INFO L168 Benchmark]: RCFGBuilder took 549.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 66.2 MB). Peak memory consumption was 66.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:58:16,075 INFO L168 Benchmark]: TraceAbstraction took 64946.23 ms. Allocated memory was 1.2 GB in the beginning and 4.4 GB in the end (delta: 3.3 GB). Free memory was 1.1 GB in the beginning and 4.0 GB in the end (delta: -2.9 GB). Peak memory consumption was 3.6 GB. Max. memory is 11.5 GB. [2018-11-18 14:58:16,075 INFO L168 Benchmark]: Witness Printer took 72.24 ms. Allocated memory is still 4.4 GB. Free memory was 4.0 GB in the beginning and 4.0 GB in the end (delta: 50.8 kB). Peak memory consumption was 50.8 kB. Max. memory is 11.5 GB. [2018-11-18 14:58:16,077 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 375.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -192.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 549.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 66.2 MB). Peak memory consumption was 66.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 64946.23 ms. Allocated memory was 1.2 GB in the beginning and 4.4 GB in the end (delta: 3.3 GB). Free memory was 1.1 GB in the beginning and 4.0 GB in the end (delta: -2.9 GB). Peak memory consumption was 3.6 GB. Max. memory is 11.5 GB. * Witness Printer took 72.24 ms. Allocated memory is still 4.4 GB. Free memory was 4.0 GB in the beginning and 4.0 GB in the end (delta: 50.8 kB). Peak memory consumption was 50.8 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 467]: 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: 483]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (((((((((0 == pumpRunning && waterLevel < 3) && methaneLevelCritical == 1) && splverifierCounter == 0) || !(systemActive == 1)) || !(0 == \old(pumpRunning))) || (((0 == pumpRunning && waterLevel <= 1) && methaneLevelCritical == 0) && splverifierCounter == 0)) || (((waterLevel < 3 && pumpRunning == 1) && methaneLevelCritical == 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (((waterLevel < 3 && methaneLevelCritical == 0) && pumpRunning == 1) && splverifierCounter == 0) - InvariantResult [Line: 473]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 171 locations, 1 error locations. SAFE Result, 64.8s OverallTime, 19 OverallIterations, 4 TraceHistogramMax, 45.8s AutomataDifference, 0.0s DeadEndRemovalTime, 8.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4928 SDtfs, 5520 SDslu, 37352 SDs, 0 SdLazy, 11781 SolverSat, 1859 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.9s Time, PredicateUnifierStatistics: 14 DeclaredPredicates, 2039 GetRequests, 1564 SyntacticMatches, 20 SemanticMatches, 455 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6671 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2774occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.0s AbstIntTime, 9 AbstIntIterations, 7 AbstIntStrong, 0.99673651259667 AbsIntWeakeningRatio, 0.8669165885660731 AbsIntAvgWeakeningVarsNumRemoved, 67.60543580131208 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 19 MinimizatonAttempts, 685 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 8055 PreInvPairs, 8367 NumberOfFragments, 4404 HoareAnnotationTreeSize, 8055 FomulaSimplifications, 37764 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 70 FomulaSimplificationsInter, 94986 FormulaSimplificationTreeSizeReductionInter, 6.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 2602 NumberOfCodeBlocks, 2602 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 2927 ConstructedInterpolants, 0 QuantifiedInterpolants, 620455 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1642 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 23 InterpolantComputations, 12 PerfectInterpolantSequences, 602/641 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...