./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product61_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4b083a23-deb7-4429-8edc-0f03c69a612e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4b083a23-deb7-4429-8edc-0f03c69a612e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4b083a23-deb7-4429-8edc-0f03c69a612e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4b083a23-deb7-4429-8edc-0f03c69a612e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product61_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4b083a23-deb7-4429-8edc-0f03c69a612e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4b083a23-deb7-4429-8edc-0f03c69a612e/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 62215579489c65348c20dcb35d4d11bc17ff5b74 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 23:45:43,479 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 23:45:43,480 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 23:45:43,486 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 23:45:43,486 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 23:45:43,486 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 23:45:43,487 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 23:45:43,488 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 23:45:43,488 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 23:45:43,489 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 23:45:43,489 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 23:45:43,489 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 23:45:43,490 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 23:45:43,490 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 23:45:43,491 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 23:45:43,491 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 23:45:43,491 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 23:45:43,492 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 23:45:43,493 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 23:45:43,494 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 23:45:43,494 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 23:45:43,495 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 23:45:43,496 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 23:45:43,496 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 23:45:43,496 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 23:45:43,496 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 23:45:43,497 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 23:45:43,497 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 23:45:43,498 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 23:45:43,498 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 23:45:43,498 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 23:45:43,498 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 23:45:43,499 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 23:45:43,499 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 23:45:43,499 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 23:45:43,499 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 23:45:43,500 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4b083a23-deb7-4429-8edc-0f03c69a612e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 23:45:43,506 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 23:45:43,507 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 23:45:43,507 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 23:45:43,507 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 23:45:43,507 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 23:45:43,507 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 23:45:43,508 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 23:45:43,508 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 23:45:43,508 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 23:45:43,508 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 23:45:43,508 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 23:45:43,508 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 23:45:43,508 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 23:45:43,508 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 23:45:43,509 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 23:45:43,509 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 23:45:43,509 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 23:45:43,509 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 23:45:43,509 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 23:45:43,509 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 23:45:43,509 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 23:45:43,509 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 23:45:43,509 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 23:45:43,509 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 23:45:43,509 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 23:45:43,509 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 23:45:43,510 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 23:45:43,510 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 23:45:43,510 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 23:45:43,510 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 23:45:43,510 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 23:45:43,510 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 23:45:43,510 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 23:45:43,510 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 23:45:43,510 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 23:45:43,510 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 23:45:43,510 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_4b083a23-deb7-4429-8edc-0f03c69a612e/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 -> 62215579489c65348c20dcb35d4d11bc17ff5b74 [2018-12-08 23:45:43,527 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 23:45:43,534 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 23:45:43,536 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 23:45:43,537 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 23:45:43,537 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 23:45:43,537 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4b083a23-deb7-4429-8edc-0f03c69a612e/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product61_true-unreach-call_false-termination.cil.c [2018-12-08 23:45:43,572 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4b083a23-deb7-4429-8edc-0f03c69a612e/bin-2019/utaipan/data/10ad0f67c/aae5bb6589cb4bb3876f5e9aeb66d5d4/FLAG8cc2c9287 [2018-12-08 23:45:43,941 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 23:45:43,942 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4b083a23-deb7-4429-8edc-0f03c69a612e/sv-benchmarks/c/product-lines/minepump_spec4_product61_true-unreach-call_false-termination.cil.c [2018-12-08 23:45:43,949 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4b083a23-deb7-4429-8edc-0f03c69a612e/bin-2019/utaipan/data/10ad0f67c/aae5bb6589cb4bb3876f5e9aeb66d5d4/FLAG8cc2c9287 [2018-12-08 23:45:44,314 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4b083a23-deb7-4429-8edc-0f03c69a612e/bin-2019/utaipan/data/10ad0f67c/aae5bb6589cb4bb3876f5e9aeb66d5d4 [2018-12-08 23:45:44,317 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 23:45:44,317 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 23:45:44,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 23:45:44,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 23:45:44,320 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 23:45:44,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:45:44" (1/1) ... [2018-12-08 23:45:44,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67523692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:44, skipping insertion in model container [2018-12-08 23:45:44,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:45:44" (1/1) ... [2018-12-08 23:45:44,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 23:45:44,354 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 23:45:44,512 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:45:44,559 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 23:45:44,614 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:45:44,635 INFO L195 MainTranslator]: Completed translation [2018-12-08 23:45:44,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:44 WrapperNode [2018-12-08 23:45:44,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 23:45:44,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 23:45:44,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 23:45:44,636 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 23:45:44,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:44" (1/1) ... [2018-12-08 23:45:44,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:44" (1/1) ... [2018-12-08 23:45:44,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 23:45:44,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 23:45:44,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 23:45:44,657 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 23:45:44,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:44" (1/1) ... [2018-12-08 23:45:44,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:44" (1/1) ... [2018-12-08 23:45:44,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:44" (1/1) ... [2018-12-08 23:45:44,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:44" (1/1) ... [2018-12-08 23:45:44,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:44" (1/1) ... [2018-12-08 23:45:44,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:44" (1/1) ... [2018-12-08 23:45:44,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:44" (1/1) ... [2018-12-08 23:45:44,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 23:45:44,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 23:45:44,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 23:45:44,679 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 23:45:44,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4b083a23-deb7-4429-8edc-0f03c69a612e/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 23:45:44,711 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-08 23:45:44,711 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-08 23:45:44,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-08 23:45:44,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-08 23:45:44,711 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 23:45:44,711 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 23:45:44,711 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-08 23:45:44,712 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-08 23:45:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 23:45:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-08 23:45:44,712 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-08 23:45:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-08 23:45:44,712 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-08 23:45:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-08 23:45:44,712 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-08 23:45:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-08 23:45:44,712 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-08 23:45:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-08 23:45:44,712 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-08 23:45:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-12-08 23:45:44,713 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-12-08 23:45:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-08 23:45:44,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-08 23:45:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-08 23:45:44,713 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-08 23:45:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-08 23:45:44,713 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-08 23:45:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-08 23:45:44,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-08 23:45:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-08 23:45:44,713 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-08 23:45:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-08 23:45:44,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-08 23:45:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-08 23:45:44,713 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-08 23:45:44,714 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-08 23:45:44,714 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-08 23:45:44,714 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-08 23:45:44,714 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-08 23:45:44,714 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-08 23:45:44,714 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-08 23:45:44,714 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-08 23:45:44,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-08 23:45:44,714 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-08 23:45:44,714 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-08 23:45:44,714 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-12-08 23:45:44,714 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-12-08 23:45:44,714 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-08 23:45:44,714 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-08 23:45:44,714 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-08 23:45:44,714 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-08 23:45:44,715 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-08 23:45:44,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-08 23:45:44,715 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-08 23:45:44,715 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-08 23:45:44,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-08 23:45:44,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 23:45:44,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 23:45:44,715 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-08 23:45:44,715 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-08 23:45:44,715 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-08 23:45:44,715 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-08 23:45:44,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 23:45:44,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 23:45:45,006 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 23:45:45,006 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-08 23:45:45,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:45:45 BoogieIcfgContainer [2018-12-08 23:45:45,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 23:45:45,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 23:45:45,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 23:45:45,010 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 23:45:45,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 11:45:44" (1/3) ... [2018-12-08 23:45:45,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@737e11f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:45:45, skipping insertion in model container [2018-12-08 23:45:45,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:44" (2/3) ... [2018-12-08 23:45:45,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@737e11f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:45:45, skipping insertion in model container [2018-12-08 23:45:45,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:45:45" (3/3) ... [2018-12-08 23:45:45,013 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product61_true-unreach-call_false-termination.cil.c [2018-12-08 23:45:45,020 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 23:45:45,025 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 23:45:45,033 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 23:45:45,051 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 23:45:45,052 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 23:45:45,052 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 23:45:45,052 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 23:45:45,052 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 23:45:45,052 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 23:45:45,052 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 23:45:45,052 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 23:45:45,064 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2018-12-08 23:45:45,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-08 23:45:45,070 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:45,071 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:45,072 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:45,075 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:45,075 INFO L82 PathProgramCache]: Analyzing trace with hash 414454525, now seen corresponding path program 1 times [2018-12-08 23:45:45,076 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:45,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:45,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:45,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:45,111 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:45,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:45,243 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:45,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 23:45:45,243 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:45,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 23:45:45,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 23:45:45,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 23:45:45,255 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 2 states. [2018-12-08 23:45:45,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:45,279 INFO L93 Difference]: Finished difference Result 306 states and 379 transitions. [2018-12-08 23:45:45,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 23:45:45,280 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-08 23:45:45,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:45,286 INFO L225 Difference]: With dead ends: 306 [2018-12-08 23:45:45,287 INFO L226 Difference]: Without dead ends: 153 [2018-12-08 23:45:45,289 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 23:45:45,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-12-08 23:45:45,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2018-12-08 23:45:45,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-12-08 23:45:45,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 181 transitions. [2018-12-08 23:45:45,319 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 181 transitions. Word has length 46 [2018-12-08 23:45:45,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:45,319 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 181 transitions. [2018-12-08 23:45:45,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 23:45:45,319 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 181 transitions. [2018-12-08 23:45:45,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-08 23:45:45,321 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:45,321 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:45,321 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:45,321 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:45,321 INFO L82 PathProgramCache]: Analyzing trace with hash -369712952, now seen corresponding path program 1 times [2018-12-08 23:45:45,321 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:45,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:45,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:45,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:45,322 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:45,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:45,371 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:45,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 23:45:45,371 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:45,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 23:45:45,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 23:45:45,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:45:45,373 INFO L87 Difference]: Start difference. First operand 153 states and 181 transitions. Second operand 3 states. [2018-12-08 23:45:45,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:45,393 INFO L93 Difference]: Finished difference Result 255 states and 301 transitions. [2018-12-08 23:45:45,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 23:45:45,394 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-08 23:45:45,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:45,395 INFO L225 Difference]: With dead ends: 255 [2018-12-08 23:45:45,395 INFO L226 Difference]: Without dead ends: 144 [2018-12-08 23:45:45,397 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:45:45,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-12-08 23:45:45,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-12-08 23:45:45,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-12-08 23:45:45,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 169 transitions. [2018-12-08 23:45:45,408 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 169 transitions. Word has length 47 [2018-12-08 23:45:45,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:45,409 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 169 transitions. [2018-12-08 23:45:45,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 23:45:45,409 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 169 transitions. [2018-12-08 23:45:45,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-08 23:45:45,410 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:45,410 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:45,411 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:45,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:45,411 INFO L82 PathProgramCache]: Analyzing trace with hash 928795825, now seen corresponding path program 1 times [2018-12-08 23:45:45,411 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:45,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:45,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:45,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:45,412 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:45,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:45,485 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:45,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 23:45:45,485 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:45,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 23:45:45,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 23:45:45,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-08 23:45:45,486 INFO L87 Difference]: Start difference. First operand 144 states and 169 transitions. Second operand 7 states. [2018-12-08 23:45:45,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:45,665 INFO L93 Difference]: Finished difference Result 264 states and 315 transitions. [2018-12-08 23:45:45,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 23:45:45,665 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-08 23:45:45,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:45,666 INFO L225 Difference]: With dead ends: 264 [2018-12-08 23:45:45,666 INFO L226 Difference]: Without dead ends: 144 [2018-12-08 23:45:45,667 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-08 23:45:45,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-12-08 23:45:45,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-12-08 23:45:45,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-12-08 23:45:45,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 168 transitions. [2018-12-08 23:45:45,674 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 168 transitions. Word has length 51 [2018-12-08 23:45:45,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:45,674 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 168 transitions. [2018-12-08 23:45:45,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 23:45:45,674 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 168 transitions. [2018-12-08 23:45:45,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-12-08 23:45:45,676 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:45,676 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:45,676 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:45,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:45,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1654083998, now seen corresponding path program 1 times [2018-12-08 23:45:45,676 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:45,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:45,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:45,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:45,677 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:45,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:45,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:45,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 23:45:45,743 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:45,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 23:45:45,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 23:45:45,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 23:45:45,743 INFO L87 Difference]: Start difference. First operand 144 states and 168 transitions. Second operand 5 states. [2018-12-08 23:45:46,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:46,050 INFO L93 Difference]: Finished difference Result 376 states and 452 transitions. [2018-12-08 23:45:46,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 23:45:46,050 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2018-12-08 23:45:46,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:46,052 INFO L225 Difference]: With dead ends: 376 [2018-12-08 23:45:46,052 INFO L226 Difference]: Without dead ends: 256 [2018-12-08 23:45:46,053 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-08 23:45:46,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2018-12-08 23:45:46,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 238. [2018-12-08 23:45:46,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2018-12-08 23:45:46,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 268 transitions. [2018-12-08 23:45:46,071 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 268 transitions. Word has length 69 [2018-12-08 23:45:46,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:46,071 INFO L480 AbstractCegarLoop]: Abstraction has 238 states and 268 transitions. [2018-12-08 23:45:46,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 23:45:46,071 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 268 transitions. [2018-12-08 23:45:46,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-08 23:45:46,072 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:46,072 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:46,072 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:46,072 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:46,073 INFO L82 PathProgramCache]: Analyzing trace with hash -548786926, now seen corresponding path program 1 times [2018-12-08 23:45:46,073 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:46,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:46,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:46,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:46,073 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:46,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:46,149 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:46,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-08 23:45:46,149 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:46,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 23:45:46,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 23:45:46,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-08 23:45:46,150 INFO L87 Difference]: Start difference. First operand 238 states and 268 transitions. Second operand 10 states. [2018-12-08 23:45:46,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:46,466 INFO L93 Difference]: Finished difference Result 771 states and 939 transitions. [2018-12-08 23:45:46,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-08 23:45:46,466 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2018-12-08 23:45:46,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:46,469 INFO L225 Difference]: With dead ends: 771 [2018-12-08 23:45:46,469 INFO L226 Difference]: Without dead ends: 557 [2018-12-08 23:45:46,471 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-08 23:45:46,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2018-12-08 23:45:46,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 547. [2018-12-08 23:45:46,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2018-12-08 23:45:46,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 636 transitions. [2018-12-08 23:45:46,503 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 636 transitions. Word has length 83 [2018-12-08 23:45:46,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:46,504 INFO L480 AbstractCegarLoop]: Abstraction has 547 states and 636 transitions. [2018-12-08 23:45:46,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 23:45:46,504 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 636 transitions. [2018-12-08 23:45:46,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-12-08 23:45:46,507 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:46,507 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:46,508 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:46,508 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:46,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1012913959, now seen corresponding path program 1 times [2018-12-08 23:45:46,508 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:46,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:46,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:46,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:46,509 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:46,563 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-12-08 23:45:46,563 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:45:46,563 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:45:46,564 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 163 with the following transitions: [2018-12-08 23:45:46,565 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [78], [81], [83], [84], [99], [102], [103], [104], [113], [117], [121], [124], [129], [135], [137], [140], [155], [156], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [179], [183], [184], [218], [219], [225], [229], [235], [243], [247], [250], [252], [255], [258], [265], [268], [272], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [298], [299], [302], [304], [305], [312], [313], [314], [315], [318], [319], [322], [323], [324], [325], [326], [327], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345], [346], [347] [2018-12-08 23:45:46,589 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 23:45:46,589 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 23:45:46,875 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 23:45:46,876 INFO L272 AbstractInterpreter]: Visited 53 different actions 53 times. Never merged. Never widened. Performed 2173 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2173 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-08 23:45:46,881 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:46,881 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 23:45:47,125 INFO L227 lantSequenceWeakener]: Weakened 80 states. On average, predicates are now at 96.88% of their original sizes. [2018-12-08 23:45:47,125 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 23:45:47,168 INFO L418 sIntCurrentIteration]: We unified 161 AI predicates to 161 [2018-12-08 23:45:47,168 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 23:45:47,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 23:45:47,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-12-08 23:45:47,169 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:47,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-08 23:45:47,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-08 23:45:47,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-12-08 23:45:47,169 INFO L87 Difference]: Start difference. First operand 547 states and 636 transitions. Second operand 11 states. [2018-12-08 23:45:48,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:48,890 INFO L93 Difference]: Finished difference Result 1443 states and 1736 transitions. [2018-12-08 23:45:48,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 23:45:48,891 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 162 [2018-12-08 23:45:48,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:48,894 INFO L225 Difference]: With dead ends: 1443 [2018-12-08 23:45:48,894 INFO L226 Difference]: Without dead ends: 920 [2018-12-08 23:45:48,896 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 161 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-12-08 23:45:48,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2018-12-08 23:45:48,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 900. [2018-12-08 23:45:48,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 900 states. [2018-12-08 23:45:48,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1048 transitions. [2018-12-08 23:45:48,936 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1048 transitions. Word has length 162 [2018-12-08 23:45:48,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:48,936 INFO L480 AbstractCegarLoop]: Abstraction has 900 states and 1048 transitions. [2018-12-08 23:45:48,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-08 23:45:48,936 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1048 transitions. [2018-12-08 23:45:48,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-12-08 23:45:48,938 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:48,938 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:48,939 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:48,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:48,939 INFO L82 PathProgramCache]: Analyzing trace with hash 176494763, now seen corresponding path program 1 times [2018-12-08 23:45:48,939 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:48,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:48,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:48,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:48,940 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:48,980 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-08 23:45:48,980 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:45:48,980 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:45:48,980 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 151 with the following transitions: [2018-12-08 23:45:48,980 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [82], [83], [84], [87], [89], [92], [99], [102], [104], [113], [117], [121], [124], [127], [129], [135], [137], [140], [155], [156], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [179], [183], [184], [218], [219], [222], [225], [229], [235], [238], [242], [243], [247], [250], [252], [255], [265], [268], [272], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [298], [299], [302], [304], [305], [306], [307], [308], [309], [312], [313], [314], [315], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345] [2018-12-08 23:45:48,982 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 23:45:48,982 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 23:45:49,178 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 23:45:49,179 INFO L272 AbstractInterpreter]: Visited 60 different actions 83 times. Merged at 5 different actions 5 times. Never widened. Performed 5242 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5242 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-08 23:45:49,181 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:49,181 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 23:45:49,311 INFO L227 lantSequenceWeakener]: Weakened 69 states. On average, predicates are now at 96.44% of their original sizes. [2018-12-08 23:45:49,312 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 23:45:49,365 INFO L418 sIntCurrentIteration]: We unified 149 AI predicates to 149 [2018-12-08 23:45:49,365 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 23:45:49,366 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 23:45:49,366 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 15 [2018-12-08 23:45:49,366 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:49,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-08 23:45:49,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-08 23:45:49,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-12-08 23:45:49,367 INFO L87 Difference]: Start difference. First operand 900 states and 1048 transitions. Second operand 12 states. [2018-12-08 23:45:50,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:50,821 INFO L93 Difference]: Finished difference Result 2358 states and 2925 transitions. [2018-12-08 23:45:50,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-08 23:45:50,821 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 150 [2018-12-08 23:45:50,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:50,826 INFO L225 Difference]: With dead ends: 2358 [2018-12-08 23:45:50,826 INFO L226 Difference]: Without dead ends: 1636 [2018-12-08 23:45:50,827 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-12-08 23:45:50,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2018-12-08 23:45:50,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1548. [2018-12-08 23:45:50,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1548 states. [2018-12-08 23:45:50,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 1830 transitions. [2018-12-08 23:45:50,874 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 1830 transitions. Word has length 150 [2018-12-08 23:45:50,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:50,874 INFO L480 AbstractCegarLoop]: Abstraction has 1548 states and 1830 transitions. [2018-12-08 23:45:50,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-08 23:45:50,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 1830 transitions. [2018-12-08 23:45:50,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-12-08 23:45:50,877 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:50,878 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:50,878 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:50,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:50,878 INFO L82 PathProgramCache]: Analyzing trace with hash 209701970, now seen corresponding path program 1 times [2018-12-08 23:45:50,878 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:50,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:50,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:50,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:50,879 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:50,942 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-08 23:45:50,942 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:45:50,942 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:45:50,943 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-12-08 23:45:50,943 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [81], [83], [84], [87], [89], [92], [99], [102], [104], [113], [117], [121], [127], [129], [135], [137], [140], [155], [156], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [179], [183], [184], [218], [219], [222], [225], [229], [235], [238], [242], [243], [247], [250], [252], [255], [265], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [298], [299], [302], [304], [305], [306], [307], [308], [309], [312], [313], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345] [2018-12-08 23:45:50,946 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 23:45:50,946 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 23:45:51,475 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 23:45:51,475 INFO L272 AbstractInterpreter]: Visited 118 different actions 438 times. Merged at 16 different actions 30 times. Never widened. Performed 13930 root evaluator evaluations with a maximum evaluation depth of 3. Performed 13930 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 2 different actions. Largest state had 132 variables. [2018-12-08 23:45:51,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:51,477 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 23:45:51,478 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:45:51,478 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4b083a23-deb7-4429-8edc-0f03c69a612e/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:45:51,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:51,485 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:45:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:51,559 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:45:51,590 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-08 23:45:51,590 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:45:51,788 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-08 23:45:51,804 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-08 23:45:51,804 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-08 23:45:51,804 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:51,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 23:45:51,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 23:45:51,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:45:51,805 INFO L87 Difference]: Start difference. First operand 1548 states and 1830 transitions. Second operand 6 states. [2018-12-08 23:45:51,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:51,857 INFO L93 Difference]: Finished difference Result 3153 states and 3860 transitions. [2018-12-08 23:45:51,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 23:45:51,858 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2018-12-08 23:45:51,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:51,862 INFO L225 Difference]: With dead ends: 3153 [2018-12-08 23:45:51,862 INFO L226 Difference]: Without dead ends: 1629 [2018-12-08 23:45:51,864 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 289 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-08 23:45:51,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2018-12-08 23:45:51,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1603. [2018-12-08 23:45:51,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1603 states. [2018-12-08 23:45:51,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1603 states to 1603 states and 1888 transitions. [2018-12-08 23:45:51,909 INFO L78 Accepts]: Start accepts. Automaton has 1603 states and 1888 transitions. Word has length 146 [2018-12-08 23:45:51,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:51,909 INFO L480 AbstractCegarLoop]: Abstraction has 1603 states and 1888 transitions. [2018-12-08 23:45:51,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 23:45:51,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1603 states and 1888 transitions. [2018-12-08 23:45:51,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-12-08 23:45:51,911 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:51,911 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:51,911 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:51,911 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:51,911 INFO L82 PathProgramCache]: Analyzing trace with hash 613081545, now seen corresponding path program 1 times [2018-12-08 23:45:51,911 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:51,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:51,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:51,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:51,912 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:52,026 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-08 23:45:52,026 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:45:52,026 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:45:52,027 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 159 with the following transitions: [2018-12-08 23:45:52,027 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [82], [83], [84], [87], [89], [92], [99], [102], [104], [113], [117], [121], [124], [129], [132], [135], [137], [140], [155], [156], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [181], [183], [184], [189], [191], [218], [219], [222], [225], [229], [235], [240], [242], [243], [247], [250], [252], [255], [265], [268], [272], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [298], [299], [302], [304], [305], [306], [307], [308], [309], [312], [313], [314], [315], [316], [317], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345] [2018-12-08 23:45:52,029 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 23:45:52,029 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 23:45:53,092 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 23:45:53,092 INFO L272 AbstractInterpreter]: Visited 127 different actions 711 times. Merged at 19 different actions 54 times. Never widened. Performed 34220 root evaluator evaluations with a maximum evaluation depth of 3. Performed 34220 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 10 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-08 23:45:53,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:53,097 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 23:45:53,097 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:45:53,097 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4b083a23-deb7-4429-8edc-0f03c69a612e/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:45:53,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:53,106 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:45:53,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:53,174 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:45:53,280 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-08 23:45:53,280 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:45:54,089 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-08 23:45:54,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-08 23:45:54,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-08 23:45:54,104 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:54,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 23:45:54,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 23:45:54,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-08 23:45:54,105 INFO L87 Difference]: Start difference. First operand 1603 states and 1888 transitions. Second operand 8 states. [2018-12-08 23:45:54,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:54,286 INFO L93 Difference]: Finished difference Result 2964 states and 3507 transitions. [2018-12-08 23:45:54,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 23:45:54,287 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 158 [2018-12-08 23:45:54,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:54,295 INFO L225 Difference]: With dead ends: 2964 [2018-12-08 23:45:54,295 INFO L226 Difference]: Without dead ends: 2053 [2018-12-08 23:45:54,297 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 297 SyntacticMatches, 9 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-08 23:45:54,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2053 states. [2018-12-08 23:45:54,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2053 to 2050. [2018-12-08 23:45:54,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2050 states. [2018-12-08 23:45:54,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 2393 transitions. [2018-12-08 23:45:54,354 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 2393 transitions. Word has length 158 [2018-12-08 23:45:54,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:54,354 INFO L480 AbstractCegarLoop]: Abstraction has 2050 states and 2393 transitions. [2018-12-08 23:45:54,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 23:45:54,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 2393 transitions. [2018-12-08 23:45:54,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-12-08 23:45:54,356 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:54,356 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:54,356 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:54,357 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:54,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1409272944, now seen corresponding path program 1 times [2018-12-08 23:45:54,357 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:54,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:54,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:54,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:54,357 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:54,406 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-08 23:45:54,406 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:45:54,406 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:45:54,406 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-12-08 23:45:54,406 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [81], [83], [84], [87], [89], [92], [99], [102], [104], [113], [117], [121], [127], [129], [135], [137], [140], [155], [156], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [181], [183], [184], [218], [219], [222], [225], [229], [235], [238], [242], [243], [247], [250], [252], [255], [265], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [298], [299], [302], [304], [305], [306], [307], [308], [309], [312], [313], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345] [2018-12-08 23:45:54,408 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 23:45:54,408 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 23:45:54,507 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 23:45:54,507 INFO L272 AbstractInterpreter]: Visited 55 different actions 55 times. Never merged. Never widened. Performed 2061 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2061 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-08 23:45:54,509 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:54,509 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 23:45:54,589 INFO L227 lantSequenceWeakener]: Weakened 65 states. On average, predicates are now at 96.44% of their original sizes. [2018-12-08 23:45:54,589 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 23:45:54,622 INFO L418 sIntCurrentIteration]: We unified 145 AI predicates to 145 [2018-12-08 23:45:54,622 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 23:45:54,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 23:45:54,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2018-12-08 23:45:54,623 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:54,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 23:45:54,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 23:45:54,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-12-08 23:45:54,623 INFO L87 Difference]: Start difference. First operand 2050 states and 2393 transitions. Second operand 9 states. [2018-12-08 23:45:55,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:55,091 INFO L93 Difference]: Finished difference Result 3582 states and 4163 transitions. [2018-12-08 23:45:55,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 23:45:55,091 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 146 [2018-12-08 23:45:55,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:55,096 INFO L225 Difference]: With dead ends: 3582 [2018-12-08 23:45:55,096 INFO L226 Difference]: Without dead ends: 1556 [2018-12-08 23:45:55,100 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 148 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-08 23:45:55,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2018-12-08 23:45:55,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1554. [2018-12-08 23:45:55,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1554 states. [2018-12-08 23:45:55,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 1781 transitions. [2018-12-08 23:45:55,155 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 1781 transitions. Word has length 146 [2018-12-08 23:45:55,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:55,155 INFO L480 AbstractCegarLoop]: Abstraction has 1554 states and 1781 transitions. [2018-12-08 23:45:55,155 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 23:45:55,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 1781 transitions. [2018-12-08 23:45:55,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-12-08 23:45:55,157 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:55,157 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:55,157 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:55,157 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:55,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1442480151, now seen corresponding path program 1 times [2018-12-08 23:45:55,157 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:55,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:55,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:55,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:55,158 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:55,230 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-08 23:45:55,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:55,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-08 23:45:55,231 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:55,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 23:45:55,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 23:45:55,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-08 23:45:55,231 INFO L87 Difference]: Start difference. First operand 1554 states and 1781 transitions. Second operand 9 states. [2018-12-08 23:45:55,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:55,652 INFO L93 Difference]: Finished difference Result 2420 states and 2814 transitions. [2018-12-08 23:45:55,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-08 23:45:55,652 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 150 [2018-12-08 23:45:55,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:55,656 INFO L225 Difference]: With dead ends: 2420 [2018-12-08 23:45:55,656 INFO L226 Difference]: Without dead ends: 1435 [2018-12-08 23:45:55,658 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2018-12-08 23:45:55,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1435 states. [2018-12-08 23:45:55,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1435 to 1430. [2018-12-08 23:45:55,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1430 states. [2018-12-08 23:45:55,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 1624 transitions. [2018-12-08 23:45:55,706 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 1624 transitions. Word has length 150 [2018-12-08 23:45:55,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:55,706 INFO L480 AbstractCegarLoop]: Abstraction has 1430 states and 1624 transitions. [2018-12-08 23:45:55,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 23:45:55,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 1624 transitions. [2018-12-08 23:45:55,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-12-08 23:45:55,708 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:55,708 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:55,708 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:55,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:55,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1950280525, now seen corresponding path program 1 times [2018-12-08 23:45:55,708 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:55,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:55,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:55,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:55,709 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:55,746 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-12-08 23:45:55,746 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:55,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 23:45:55,747 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:55,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 23:45:55,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 23:45:55,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:45:55,747 INFO L87 Difference]: Start difference. First operand 1430 states and 1624 transitions. Second operand 6 states. [2018-12-08 23:45:55,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:55,860 INFO L93 Difference]: Finished difference Result 1441 states and 1636 transitions. [2018-12-08 23:45:55,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 23:45:55,861 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2018-12-08 23:45:55,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:55,865 INFO L225 Difference]: With dead ends: 1441 [2018-12-08 23:45:55,865 INFO L226 Difference]: Without dead ends: 1438 [2018-12-08 23:45:55,865 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-08 23:45:55,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2018-12-08 23:45:55,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1430. [2018-12-08 23:45:55,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1430 states. [2018-12-08 23:45:55,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 1622 transitions. [2018-12-08 23:45:55,914 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 1622 transitions. Word has length 154 [2018-12-08 23:45:55,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:55,914 INFO L480 AbstractCegarLoop]: Abstraction has 1430 states and 1622 transitions. [2018-12-08 23:45:55,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 23:45:55,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 1622 transitions. [2018-12-08 23:45:55,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-12-08 23:45:55,916 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:55,916 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:55,916 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:55,916 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:55,916 INFO L82 PathProgramCache]: Analyzing trace with hash -327634403, now seen corresponding path program 1 times [2018-12-08 23:45:55,916 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:55,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:55,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:55,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:55,917 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:55,984 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-12-08 23:45:55,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:55,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-08 23:45:55,984 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:55,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 23:45:55,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 23:45:55,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-08 23:45:55,985 INFO L87 Difference]: Start difference. First operand 1430 states and 1622 transitions. Second operand 9 states. [2018-12-08 23:45:56,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:56,030 INFO L93 Difference]: Finished difference Result 2095 states and 2399 transitions. [2018-12-08 23:45:56,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 23:45:56,031 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2018-12-08 23:45:56,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:56,034 INFO L225 Difference]: With dead ends: 2095 [2018-12-08 23:45:56,034 INFO L226 Difference]: Without dead ends: 1446 [2018-12-08 23:45:56,035 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-12-08 23:45:56,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2018-12-08 23:45:56,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1440. [2018-12-08 23:45:56,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1440 states. [2018-12-08 23:45:56,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 1632 transitions. [2018-12-08 23:45:56,067 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 1632 transitions. Word has length 172 [2018-12-08 23:45:56,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:56,067 INFO L480 AbstractCegarLoop]: Abstraction has 1440 states and 1632 transitions. [2018-12-08 23:45:56,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 23:45:56,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 1632 transitions. [2018-12-08 23:45:56,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-12-08 23:45:56,069 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:56,069 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:56,070 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:56,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:56,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1916348895, now seen corresponding path program 1 times [2018-12-08 23:45:56,070 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:56,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:56,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:56,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:56,070 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:56,152 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-08 23:45:56,152 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:45:56,152 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:45:56,152 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2018-12-08 23:45:56,153 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [56], [57], [58], [60], [63], [67], [68], [69], [72], [74], [75], [78], [82], [83], [84], [87], [89], [95], [99], [102], [103], [104], [113], [117], [121], [124], [127], [129], [135], [137], [140], [155], [156], [157], [158], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [181], [183], [184], [218], [219], [222], [225], [229], [235], [238], [242], [243], [247], [250], [252], [255], [262], [265], [268], [272], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [292], [293], [296], [297], [298], [299], [300], [301], [302], [304], [305], [306], [307], [310], [311], [312], [313], [314], [315], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345], [348], [349] [2018-12-08 23:45:56,154 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 23:45:56,154 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 23:45:56,806 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 23:45:56,806 INFO L272 AbstractInterpreter]: Visited 141 different actions 679 times. Merged at 15 different actions 42 times. Never widened. Performed 21222 root evaluator evaluations with a maximum evaluation depth of 5. Performed 21222 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 132 variables. [2018-12-08 23:45:56,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:56,809 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 23:45:56,809 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:45:56,809 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4b083a23-deb7-4429-8edc-0f03c69a612e/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:45:56,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:56,815 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:45:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:56,876 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:45:56,947 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:56,947 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:45:57,126 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-08 23:45:57,141 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:45:57,141 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-12-08 23:45:57,141 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:45:57,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-08 23:45:57,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-08 23:45:57,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-12-08 23:45:57,142 INFO L87 Difference]: Start difference. First operand 1440 states and 1632 transitions. Second operand 14 states. [2018-12-08 23:45:58,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:58,065 INFO L93 Difference]: Finished difference Result 2621 states and 3312 transitions. [2018-12-08 23:45:58,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-08 23:45:58,065 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 172 [2018-12-08 23:45:58,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:58,070 INFO L225 Difference]: With dead ends: 2621 [2018-12-08 23:45:58,070 INFO L226 Difference]: Without dead ends: 1962 [2018-12-08 23:45:58,071 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 338 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2018-12-08 23:45:58,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2018-12-08 23:45:58,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1691. [2018-12-08 23:45:58,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2018-12-08 23:45:58,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 1933 transitions. [2018-12-08 23:45:58,119 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 1933 transitions. Word has length 172 [2018-12-08 23:45:58,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:58,119 INFO L480 AbstractCegarLoop]: Abstraction has 1691 states and 1933 transitions. [2018-12-08 23:45:58,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-08 23:45:58,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 1933 transitions. [2018-12-08 23:45:58,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2018-12-08 23:45:58,122 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:58,122 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:58,122 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:58,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:58,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1721252770, now seen corresponding path program 1 times [2018-12-08 23:45:58,123 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:58,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:58,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:58,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:58,123 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:58,180 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 51 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-12-08 23:45:58,180 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:45:58,180 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:45:58,181 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 232 with the following transitions: [2018-12-08 23:45:58,181 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [56], [57], [58], [60], [63], [67], [68], [69], [72], [74], [75], [78], [81], [83], [84], [87], [89], [95], [99], [102], [103], [104], [113], [117], [121], [127], [129], [132], [135], [137], [140], [155], [156], [157], [158], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [179], [181], [183], [184], [187], [189], [191], [218], [219], [222], [225], [229], [235], [238], [242], [243], [247], [250], [252], [255], [258], [262], [265], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [292], [293], [296], [297], [298], [299], [300], [301], [302], [304], [305], [306], [307], [310], [311], [312], [313], [316], [317], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345], [346], [347], [348], [349] [2018-12-08 23:45:58,182 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 23:45:58,182 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 23:46:00,483 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 23:46:00,483 INFO L272 AbstractInterpreter]: Visited 146 different actions 1948 times. Merged at 25 different actions 252 times. Widened at 1 different actions 1 times. Performed 73458 root evaluator evaluations with a maximum evaluation depth of 5. Performed 73458 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 40 fixpoints after 3 different actions. Largest state had 132 variables. [2018-12-08 23:46:00,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:46:00,485 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 23:46:00,486 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:46:00,486 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4b083a23-deb7-4429-8edc-0f03c69a612e/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:46:00,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:46:00,491 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:46:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:46:00,557 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:46:00,595 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-12-08 23:46:00,595 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:46:00,804 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 51 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-12-08 23:46:00,828 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-08 23:46:00,829 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-12-08 23:46:00,829 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:46:00,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 23:46:00,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 23:46:00,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-08 23:46:00,829 INFO L87 Difference]: Start difference. First operand 1691 states and 1933 transitions. Second operand 5 states. [2018-12-08 23:46:00,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:46:00,868 INFO L93 Difference]: Finished difference Result 2794 states and 3262 transitions. [2018-12-08 23:46:00,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 23:46:00,869 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 231 [2018-12-08 23:46:00,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:46:00,873 INFO L225 Difference]: With dead ends: 2794 [2018-12-08 23:46:00,873 INFO L226 Difference]: Without dead ends: 1301 [2018-12-08 23:46:00,875 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 459 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-08 23:46:00,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2018-12-08 23:46:00,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1301. [2018-12-08 23:46:00,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1301 states. [2018-12-08 23:46:00,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1492 transitions. [2018-12-08 23:46:00,910 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1492 transitions. Word has length 231 [2018-12-08 23:46:00,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:46:00,911 INFO L480 AbstractCegarLoop]: Abstraction has 1301 states and 1492 transitions. [2018-12-08 23:46:00,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 23:46:00,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1492 transitions. [2018-12-08 23:46:00,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-12-08 23:46:00,913 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:46:00,913 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:46:00,913 INFO L423 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:46:00,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:46:00,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1548542198, now seen corresponding path program 2 times [2018-12-08 23:46:00,913 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:46:00,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:46:00,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:46:00,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:46:00,914 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:46:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:46:00,974 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 45 proven. 14 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-12-08 23:46:00,974 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:46:00,975 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:46:00,975 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:46:00,975 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:46:00,975 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:46:00,975 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4b083a23-deb7-4429-8edc-0f03c69a612e/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 23:46:00,981 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 23:46:00,981 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-08 23:46:01,071 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-12-08 23:46:01,071 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:46:01,077 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:46:01,167 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-12-08 23:46:01,167 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:46:01,405 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 45 proven. 14 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-12-08 23:46:01,421 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-08 23:46:01,421 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8] total 15 [2018-12-08 23:46:01,421 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:46:01,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 23:46:01,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 23:46:01,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-12-08 23:46:01,422 INFO L87 Difference]: Start difference. First operand 1301 states and 1492 transitions. Second operand 9 states. [2018-12-08 23:46:01,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:46:01,991 INFO L93 Difference]: Finished difference Result 1911 states and 2219 transitions. [2018-12-08 23:46:01,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-08 23:46:01,991 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 241 [2018-12-08 23:46:01,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:46:01,992 INFO L225 Difference]: With dead ends: 1911 [2018-12-08 23:46:01,992 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 23:46:01,996 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 475 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2018-12-08 23:46:01,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 23:46:01,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 23:46:01,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 23:46:01,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 23:46:01,996 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 241 [2018-12-08 23:46:01,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:46:01,996 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 23:46:01,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 23:46:01,996 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 23:46:01,996 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 23:46:01,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 23:46:02,105 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,107 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,112 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,113 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,115 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,115 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,116 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,118 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,118 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,119 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,119 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,119 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,120 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,121 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,215 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,216 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,226 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,226 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,231 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,231 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,236 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,237 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,238 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,239 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,240 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,242 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,242 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,272 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,273 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,275 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,276 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,277 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,277 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,277 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,278 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,279 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,279 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,280 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,281 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,281 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,282 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,408 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,409 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,411 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,411 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,495 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,496 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,497 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,498 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,501 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 23:46:02,651 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 19 [2018-12-08 23:46:03,570 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 43 [2018-12-08 23:46:04,803 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 42 [2018-12-08 23:46:04,960 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 31 [2018-12-08 23:46:04,962 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 70 76) the Hoare annotation is: true [2018-12-08 23:46:04,962 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 70 76) no Hoare annotation was computed. [2018-12-08 23:46:04,962 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 77 85) no Hoare annotation was computed. [2018-12-08 23:46:04,962 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 77 85) the Hoare annotation is: true [2018-12-08 23:46:04,962 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 77 85) no Hoare annotation was computed. [2018-12-08 23:46:04,962 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 510 534) the Hoare annotation is: true [2018-12-08 23:46:04,962 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 510 534) no Hoare annotation was computed. [2018-12-08 23:46:04,962 INFO L444 ceAbstractionStarter]: At program point L524(line 524) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or (< ~waterLevel~0 2) .cse2 .cse3))) [2018-12-08 23:46:04,962 INFO L448 ceAbstractionStarter]: For program point L522(lines 522 528) no Hoare annotation was computed. [2018-12-08 23:46:04,962 INFO L444 ceAbstractionStarter]: At program point L520(line 520) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or (< ~waterLevel~0 2) .cse2 .cse3))) [2018-12-08 23:46:04,962 INFO L448 ceAbstractionStarter]: For program point L520-1(line 520) no Hoare annotation was computed. [2018-12-08 23:46:04,962 INFO L448 ceAbstractionStarter]: For program point L518(lines 518 531) no Hoare annotation was computed. [2018-12-08 23:46:04,963 INFO L448 ceAbstractionStarter]: For program point L518-1(lines 510 534) no Hoare annotation was computed. [2018-12-08 23:46:04,963 INFO L451 ceAbstractionStarter]: At program point L516(line 516) the Hoare annotation is: true [2018-12-08 23:46:04,963 INFO L448 ceAbstractionStarter]: For program point L516-1(line 516) no Hoare annotation was computed. [2018-12-08 23:46:04,963 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 974 996) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-08 23:46:04,963 INFO L444 ceAbstractionStarter]: At program point L986(line 986) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~11 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-08 23:46:04,963 INFO L444 ceAbstractionStarter]: At program point L986-1(line 986) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~11 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-08 23:46:04,963 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 974 996) no Hoare annotation was computed. [2018-12-08 23:46:04,963 INFO L448 ceAbstractionStarter]: For program point L984(lines 984 991) no Hoare annotation was computed. [2018-12-08 23:46:04,963 INFO L448 ceAbstractionStarter]: For program point L984-1(lines 984 991) no Hoare annotation was computed. [2018-12-08 23:46:04,963 INFO L448 ceAbstractionStarter]: For program point L982(line 982) no Hoare annotation was computed. [2018-12-08 23:46:04,963 INFO L444 ceAbstractionStarter]: At program point L981(line 981) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-08 23:46:04,963 INFO L444 ceAbstractionStarter]: At program point L980(line 980) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-08 23:46:04,963 INFO L444 ceAbstractionStarter]: At program point L980-1(line 980) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-08 23:46:04,963 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 974 996) no Hoare annotation was computed. [2018-12-08 23:46:04,963 INFO L444 ceAbstractionStarter]: At program point L178(line 178) the Hoare annotation is: (let ((.cse4 (< ~waterLevel~0 1)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~waterLevel~0 1))) (or .cse4 (= |old(~pumpRunning~0)| 0) .cse3 .cse5) (or .cse4 .cse3 .cse5 .cse2) (or .cse2 (or .cse0 .cse1 (< ~waterLevel~0 2) .cse3)))) [2018-12-08 23:46:04,963 INFO L448 ceAbstractionStarter]: For program point L178-1(lines 159 183) no Hoare annotation was computed. [2018-12-08 23:46:04,963 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 159 183) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~waterLevel~0 1))) (or (< ~waterLevel~0 1) .cse3 (not (= ~methaneLevelCritical~0 0)) .cse2) (or .cse2 (or .cse0 .cse1 (< ~waterLevel~0 2) .cse3)))) [2018-12-08 23:46:04,964 INFO L444 ceAbstractionStarter]: At program point L173(line 173) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2018-12-08 23:46:04,964 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 159 183) no Hoare annotation was computed. [2018-12-08 23:46:04,964 INFO L444 ceAbstractionStarter]: At program point L169(line 169) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 .cse3) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2 .cse3))) [2018-12-08 23:46:04,964 INFO L448 ceAbstractionStarter]: For program point L167(lines 167 175) no Hoare annotation was computed. [2018-12-08 23:46:04,964 INFO L444 ceAbstractionStarter]: At program point L165(line 165) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse3))) [2018-12-08 23:46:04,964 INFO L448 ceAbstractionStarter]: For program point L165-1(line 165) no Hoare annotation was computed. [2018-12-08 23:46:04,964 INFO L448 ceAbstractionStarter]: For program point L163(lines 163 180) no Hoare annotation was computed. [2018-12-08 23:46:04,964 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 254 262) no Hoare annotation was computed. [2018-12-08 23:46:04,964 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 254 262) the Hoare annotation is: true [2018-12-08 23:46:04,964 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 254 262) no Hoare annotation was computed. [2018-12-08 23:46:04,964 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 318 336) the Hoare annotation is: true [2018-12-08 23:46:04,964 INFO L448 ceAbstractionStarter]: For program point L327(lines 327 331) no Hoare annotation was computed. [2018-12-08 23:46:04,965 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 318 336) no Hoare annotation was computed. [2018-12-08 23:46:04,965 INFO L451 ceAbstractionStarter]: At program point L325(line 325) the Hoare annotation is: true [2018-12-08 23:46:04,965 INFO L448 ceAbstractionStarter]: For program point L327-2(lines 327 331) no Hoare annotation was computed. [2018-12-08 23:46:04,965 INFO L448 ceAbstractionStarter]: For program point L325-1(line 325) no Hoare annotation was computed. [2018-12-08 23:46:04,965 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 318 336) no Hoare annotation was computed. [2018-12-08 23:46:04,965 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 63 69) no Hoare annotation was computed. [2018-12-08 23:46:04,965 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 63 69) the Hoare annotation is: true [2018-12-08 23:46:04,965 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 964 973) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-08 23:46:04,965 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 964 973) no Hoare annotation was computed. [2018-12-08 23:46:04,965 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 964 973) no Hoare annotation was computed. [2018-12-08 23:46:04,965 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 243 253) the Hoare annotation is: true [2018-12-08 23:46:04,965 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 243 253) no Hoare annotation was computed. [2018-12-08 23:46:04,965 INFO L451 ceAbstractionStarter]: At program point L248(line 248) the Hoare annotation is: true [2018-12-08 23:46:04,966 INFO L448 ceAbstractionStarter]: For program point L248-1(line 248) no Hoare annotation was computed. [2018-12-08 23:46:04,966 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 243 253) no Hoare annotation was computed. [2018-12-08 23:46:04,966 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 235 242) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (= |old(~pumpRunning~0)| 0)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))))) [2018-12-08 23:46:04,966 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 235 242) no Hoare annotation was computed. [2018-12-08 23:46:04,966 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 235 242) no Hoare annotation was computed. [2018-12-08 23:46:04,966 INFO L448 ceAbstractionStarter]: For program point L490(lines 490 496) no Hoare annotation was computed. [2018-12-08 23:46:04,966 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 486 499) no Hoare annotation was computed. [2018-12-08 23:46:04,966 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 486 499) the Hoare annotation is: true [2018-12-08 23:46:04,966 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 486 499) no Hoare annotation was computed. [2018-12-08 23:46:04,966 INFO L448 ceAbstractionStarter]: For program point L193(lines 193 201) no Hoare annotation was computed. [2018-12-08 23:46:04,966 INFO L444 ceAbstractionStarter]: At program point L191(line 191) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse2 (< ~waterLevel~0 1)) (.cse3 (not (= ~systemActive~0 1))) (.cse5 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse2 .cse3 .cse5) (or .cse2 .cse3 .cse5 .cse4))) [2018-12-08 23:46:04,966 INFO L448 ceAbstractionStarter]: For program point L191-1(line 191) no Hoare annotation was computed. [2018-12-08 23:46:04,967 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 206) no Hoare annotation was computed. [2018-12-08 23:46:04,967 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 185 209) no Hoare annotation was computed. [2018-12-08 23:46:04,967 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 185 209) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2018-12-08 23:46:04,967 INFO L444 ceAbstractionStarter]: At program point L204(line 204) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (< ~waterLevel~0 1)) (.cse3 (not (= ~systemActive~0 1))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse3 (not (= ~waterLevel~0 1))) (or .cse5 (or .cse0 (< ~waterLevel~0 2) .cse3)) (or .cse1 .cse3 .cse4 .cse5))) [2018-12-08 23:46:04,967 INFO L448 ceAbstractionStarter]: For program point L204-1(lines 185 209) no Hoare annotation was computed. [2018-12-08 23:46:04,967 INFO L444 ceAbstractionStarter]: At program point L199(line 199) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 .cse2) (or (and (= processEnvironment_~tmp~2 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse0 .cse1 .cse2))) [2018-12-08 23:46:04,967 INFO L444 ceAbstractionStarter]: At program point L195(line 195) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (and (= processEnvironment_~tmp~2 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1 .cse2) (or .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-12-08 23:46:04,967 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 125 131) no Hoare annotation was computed. [2018-12-08 23:46:04,967 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 125 131) the Hoare annotation is: true [2018-12-08 23:46:04,967 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 357) no Hoare annotation was computed. [2018-12-08 23:46:04,968 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 341 404) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-08 23:46:04,968 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 341 404) no Hoare annotation was computed. [2018-12-08 23:46:04,968 INFO L444 ceAbstractionStarter]: At program point L397(lines 350 398) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-08 23:46:04,968 INFO L448 ceAbstractionStarter]: For program point L387(lines 387 391) no Hoare annotation was computed. [2018-12-08 23:46:04,968 INFO L444 ceAbstractionStarter]: At program point L387-2(lines 381 392) the Hoare annotation is: (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse4 (<= 2 ~waterLevel~0)) (.cse5 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse2 (<= 1 ~waterLevel~0)) (.cse3 (= test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and .cse4 .cse1 .cse3) (and .cse5 .cse4 .cse3) (not (= ~systemActive~0 1)) (and .cse5 .cse0 .cse2 .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-08 23:46:04,968 INFO L448 ceAbstractionStarter]: For program point L352(lines 351 396) no Hoare annotation was computed. [2018-12-08 23:46:04,968 INFO L448 ceAbstractionStarter]: For program point L381(lines 381 392) no Hoare annotation was computed. [2018-12-08 23:46:04,968 INFO L444 ceAbstractionStarter]: At program point L373(line 373) the Hoare annotation is: (let ((.cse3 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= 1 ~waterLevel~0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse3 (<= 2 ~waterLevel~0) .cse2) (not (= ~systemActive~0 1)) (and .cse3 .cse0 .cse1 .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-08 23:46:04,968 INFO L448 ceAbstractionStarter]: For program point L371(lines 371 377) no Hoare annotation was computed. [2018-12-08 23:46:04,968 INFO L448 ceAbstractionStarter]: For program point L371-1(lines 371 377) no Hoare annotation was computed. [2018-12-08 23:46:04,969 INFO L444 ceAbstractionStarter]: At program point L363(line 363) the Hoare annotation is: (let ((.cse3 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= 1 ~waterLevel~0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 .cse2) (and .cse3 (<= 2 ~waterLevel~0) .cse2) (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse3 .cse0 .cse1 .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-08 23:46:04,969 INFO L444 ceAbstractionStarter]: At program point L394(lines 351 396) the Hoare annotation is: (let ((.cse3 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= 1 ~waterLevel~0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse3 (<= 2 ~waterLevel~0) .cse2) (not (= ~systemActive~0 1)) (and .cse3 .cse0 .cse1 .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-08 23:46:04,969 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 367) no Hoare annotation was computed. [2018-12-08 23:46:04,969 INFO L448 ceAbstractionStarter]: For program point L361-1(lines 361 367) no Hoare annotation was computed. [2018-12-08 23:46:04,969 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 341 404) no Hoare annotation was computed. [2018-12-08 23:46:04,969 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 210 217) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~methaneLevelCritical~0 0)) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)))) [2018-12-08 23:46:04,969 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 210 217) no Hoare annotation was computed. [2018-12-08 23:46:04,969 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 210 217) no Hoare annotation was computed. [2018-12-08 23:46:04,969 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 500 508) no Hoare annotation was computed. [2018-12-08 23:46:04,969 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 500 508) the Hoare annotation is: true [2018-12-08 23:46:04,969 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 500 508) no Hoare annotation was computed. [2018-12-08 23:46:04,970 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 23:46:04,970 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-08 23:46:04,970 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 23:46:04,970 INFO L448 ceAbstractionStarter]: For program point L225(lines 225 231) no Hoare annotation was computed. [2018-12-08 23:46:04,970 INFO L444 ceAbstractionStarter]: At program point L223(line 223) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 2)) (.cse3 (not (= ~systemActive~0 1))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse1 .cse2 .cse3 .cse0))) [2018-12-08 23:46:04,970 INFO L448 ceAbstractionStarter]: For program point L223-1(line 223) no Hoare annotation was computed. [2018-12-08 23:46:04,970 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 218 234) no Hoare annotation was computed. [2018-12-08 23:46:04,970 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 218 234) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 2)) (.cse3 (not (= ~systemActive~0 1))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse1 .cse2 .cse3 .cse0))) [2018-12-08 23:46:04,970 INFO L444 ceAbstractionStarter]: At program point L229(line 229) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2018-12-08 23:46:04,970 INFO L448 ceAbstractionStarter]: For program point L229-1(lines 218 234) no Hoare annotation was computed. [2018-12-08 23:46:04,970 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 477 485) the Hoare annotation is: true [2018-12-08 23:46:04,970 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 477 485) no Hoare annotation was computed. [2018-12-08 23:46:04,971 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 477 485) no Hoare annotation was computed. [2018-12-08 23:46:04,971 INFO L448 ceAbstractionStarter]: For program point L306-1(line 306) no Hoare annotation was computed. [2018-12-08 23:46:04,971 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 299 317) no Hoare annotation was computed. [2018-12-08 23:46:04,971 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 299 317) the Hoare annotation is: true [2018-12-08 23:46:04,971 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 299 317) no Hoare annotation was computed. [2018-12-08 23:46:04,971 INFO L448 ceAbstractionStarter]: For program point L308(lines 308 312) no Hoare annotation was computed. [2018-12-08 23:46:04,971 INFO L451 ceAbstractionStarter]: At program point L306(line 306) the Hoare annotation is: true [2018-12-08 23:46:04,971 INFO L448 ceAbstractionStarter]: For program point L308-2(lines 308 312) no Hoare annotation was computed. [2018-12-08 23:46:04,971 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 433 444) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= |old(~methaneLevelCritical~0)| 0)))) (and (or (< |old(~methaneLevelCritical~0)| 1) .cse0 (< ~waterLevel~0 1) .cse1 (<= 1 ~methaneLevelCritical~0)) (or .cse0 (= ~methaneLevelCritical~0 0) .cse1 (not (= ~waterLevel~0 1)) .cse2) (or (or (< ~waterLevel~0 2) .cse1 .cse2) (= 0 ~methaneLevelCritical~0)))) [2018-12-08 23:46:04,971 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 433 444) no Hoare annotation was computed. [2018-12-08 23:46:04,971 INFO L448 ceAbstractionStarter]: For program point L437-1(lines 433 444) no Hoare annotation was computed. [2018-12-08 23:46:04,971 INFO L451 ceAbstractionStarter]: At program point L928(lines 903 932) the Hoare annotation is: true [2018-12-08 23:46:04,971 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 903 932) no Hoare annotation was computed. [2018-12-08 23:46:04,971 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 903 932) the Hoare annotation is: true [2018-12-08 23:46:04,971 INFO L448 ceAbstractionStarter]: For program point L924(line 924) no Hoare annotation was computed. [2018-12-08 23:46:04,971 INFO L448 ceAbstractionStarter]: For program point L917(lines 917 921) no Hoare annotation was computed. [2018-12-08 23:46:04,971 INFO L451 ceAbstractionStarter]: At program point L917-1(lines 917 921) the Hoare annotation is: true [2018-12-08 23:46:04,971 INFO L448 ceAbstractionStarter]: For program point L914(line 914) no Hoare annotation was computed. [2018-12-08 23:46:04,972 INFO L451 ceAbstractionStarter]: At program point L913-2(lines 913 927) the Hoare annotation is: true [2018-12-08 23:46:04,972 INFO L451 ceAbstractionStarter]: At program point L909(line 909) the Hoare annotation is: true [2018-12-08 23:46:04,972 INFO L448 ceAbstractionStarter]: For program point L909-1(line 909) no Hoare annotation was computed. [2018-12-08 23:46:04,972 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 445 453) the Hoare annotation is: true [2018-12-08 23:46:04,972 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 445 453) no Hoare annotation was computed. [2018-12-08 23:46:04,972 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 445 453) no Hoare annotation was computed. [2018-12-08 23:46:04,972 INFO L444 ceAbstractionStarter]: At program point L114(line 114) the Hoare annotation is: (let ((.cse7 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse11 (+ ~waterLevel~0 1))) (let ((.cse6 (= 0 ~pumpRunning~0)) (.cse3 (< |old(~waterLevel~0)| 2)) (.cse0 (<= .cse11 |old(~waterLevel~0)|)) (.cse1 (<= |old(~waterLevel~0)| .cse11)) (.cse8 (< ~methaneLevelCritical~0 1)) (.cse9 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not (= ~systemActive~0 1))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse10 (and .cse7 .cse2))) (and (or (and .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (and .cse6 .cse2)) (or (and .cse6 .cse7 .cse2) (or .cse8 .cse3 .cse4) (and .cse0 (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse2)) (or .cse8 .cse9 .cse10 .cse4 (not (= |old(~waterLevel~0)| 1))) (or .cse9 (< |old(~waterLevel~0)| 1) .cse4 .cse5 .cse10)))) [2018-12-08 23:46:04,972 INFO L444 ceAbstractionStarter]: At program point L112(lines 112 118) the Hoare annotation is: (let ((.cse6 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse10 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse11 (+ ~waterLevel~0 1))) (let ((.cse7 (< ~methaneLevelCritical~0 1)) (.cse0 (< |old(~waterLevel~0)| 2)) (.cse3 (<= .cse11 |old(~waterLevel~0)|)) (.cse5 (<= |old(~waterLevel~0)| .cse11)) (.cse4 (= 0 ~pumpRunning~0)) (.cse8 (not (= 0 |old(~pumpRunning~0)|))) (.cse9 (and .cse6 .cse10)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or (or .cse0 .cse1 .cse2) (and .cse3 (not (= |old(~pumpRunning~0)| 0)) .cse4 .cse5) .cse6) (or .cse7 .cse8 (< |old(~waterLevel~0)| 1) .cse1 .cse9) (or (or .cse7 .cse0 .cse1) (and .cse3 .cse4 .cse5) (and .cse4 .cse10)) (or .cse8 .cse9 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2)))) [2018-12-08 23:46:04,972 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 101 124) the Hoare annotation is: (let ((.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse4 (< ~methaneLevelCritical~0 1)) (.cse0 (< |old(~waterLevel~0)| 2)) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or (or .cse0 .cse1 .cse2) .cse3) (or .cse4 .cse5 .cse3 .cse1 (not (= |old(~waterLevel~0)| 1))) (or .cse5 (< |old(~waterLevel~0)| 1) .cse1 .cse2 .cse3) (or (or .cse4 .cse0 .cse1) .cse3))) [2018-12-08 23:46:04,972 INFO L444 ceAbstractionStarter]: At program point L107(line 107) the Hoare annotation is: (let ((.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (< |old(~waterLevel~0)| 1)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse4 (< ~methaneLevelCritical~0 1)) (.cse0 (< |old(~waterLevel~0)| 2)) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or (or .cse0 .cse1 .cse2) .cse3) (or .cse4 .cse5 .cse6 .cse1) (or .cse5 .cse6 .cse1 .cse2) (or (or .cse4 .cse0 .cse1) .cse3))) [2018-12-08 23:46:04,972 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 101 124) no Hoare annotation was computed. [2018-12-08 23:46:04,972 INFO L448 ceAbstractionStarter]: For program point L105(lines 104 123) no Hoare annotation was computed. [2018-12-08 23:46:04,972 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 101 124) no Hoare annotation was computed. [2018-12-08 23:46:04,972 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 409 420) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) .cse3) (or (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) .cse3))) [2018-12-08 23:46:04,972 INFO L448 ceAbstractionStarter]: For program point L413-1(lines 409 420) no Hoare annotation was computed. [2018-12-08 23:46:04,972 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 409 420) no Hoare annotation was computed. [2018-12-08 23:46:04,972 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 957 963) no Hoare annotation was computed. [2018-12-08 23:46:04,972 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 957 963) the Hoare annotation is: true [2018-12-08 23:46:04,973 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 23:46:04,973 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-12-08 23:46:04,973 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 23:46:04,973 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 23:46:04,973 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 133 157) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~waterLevel~0 1))) (or .cse2 (or .cse0 .cse1 (< ~waterLevel~0 2) .cse3)) (or .cse1 (< ~waterLevel~0 1) .cse3 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2018-12-08 23:46:04,973 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 133 157) no Hoare annotation was computed. [2018-12-08 23:46:04,973 INFO L444 ceAbstractionStarter]: At program point L152(line 152) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-12-08 23:46:04,973 INFO L448 ceAbstractionStarter]: For program point L152-1(lines 133 157) no Hoare annotation was computed. [2018-12-08 23:46:04,973 INFO L444 ceAbstractionStarter]: At program point L147(line 147) the Hoare annotation is: (let ((.cse6 (not (= ~waterLevel~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse5 (< ~methaneLevelCritical~0 1)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (or .cse0 .cse1 .cse2 .cse3) .cse4) (or .cse4 .cse5 .cse0 .cse2 .cse6) (or .cse0 .cse2 .cse6 .cse3 .cse4) (or .cse4 (or .cse5 .cse0 .cse1 .cse2)))) [2018-12-08 23:46:04,973 INFO L444 ceAbstractionStarter]: At program point L143(line 143) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 (< ~waterLevel~0 1) .cse1 (and (<= 2 ~waterLevel~0) .cse2)) (or .cse0 .cse1 (not (= ~waterLevel~0 1)) .cse3) (or .cse2 (or .cse0 (< ~waterLevel~0 2) .cse1 .cse3)))) [2018-12-08 23:46:04,973 INFO L448 ceAbstractionStarter]: For program point L141(lines 141 149) no Hoare annotation was computed. [2018-12-08 23:46:04,973 INFO L444 ceAbstractionStarter]: At program point L139(line 139) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~waterLevel~0 1))) (or .cse2 (or .cse0 .cse1 (< ~waterLevel~0 2) .cse3)) (or .cse1 (< ~waterLevel~0 1) .cse3 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2018-12-08 23:46:04,973 INFO L448 ceAbstractionStarter]: For program point L139-1(line 139) no Hoare annotation was computed. [2018-12-08 23:46:04,973 INFO L448 ceAbstractionStarter]: For program point L137(lines 137 154) no Hoare annotation was computed. [2018-12-08 23:46:04,973 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 421 432) no Hoare annotation was computed. [2018-12-08 23:46:04,973 INFO L448 ceAbstractionStarter]: For program point L425-1(lines 421 432) no Hoare annotation was computed. [2018-12-08 23:46:04,973 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 421 432) the Hoare annotation is: (let ((.cse4 (not (= ~systemActive~0 1)))) (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< |old(~waterLevel~0)| 1)) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (or (not (= 0 ~pumpRunning~0)) .cse4))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 (< |old(~waterLevel~0)| 2) .cse1 .cse3) (or (< ~methaneLevelCritical~0 1) .cse0 .cse3 .cse2)))) [2018-12-08 23:46:04,973 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 40 47) no Hoare annotation was computed. [2018-12-08 23:46:04,974 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2018-12-08 23:46:04,974 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2018-12-08 23:46:04,974 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2018-12-08 23:46:04,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 11:46:04 BoogieIcfgContainer [2018-12-08 23:46:04,985 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 23:46:04,985 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 23:46:04,985 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 23:46:04,985 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 23:46:04,986 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:45:45" (3/4) ... [2018-12-08 23:46:04,989 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 23:46:04,994 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-08 23:46:04,994 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-08 23:46:04,994 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-12-08 23:46:04,994 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 23:46:04,994 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-12-08 23:46:04,994 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-08 23:46:04,994 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-08 23:46:04,994 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-08 23:46:04,994 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-08 23:46:04,994 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-08 23:46:04,994 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-08 23:46:04,994 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-08 23:46:04,994 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-08 23:46:04,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-08 23:46:04,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-08 23:46:04,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-12-08 23:46:04,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-08 23:46:04,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 23:46:04,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-08 23:46:04,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-12-08 23:46:04,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-08 23:46:04,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-08 23:46:04,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-08 23:46:04,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-08 23:46:04,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-08 23:46:04,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-08 23:46:04,996 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-08 23:46:04,996 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-08 23:46:04,996 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-08 23:46:04,996 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-08 23:46:05,001 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2018-12-08 23:46:05,001 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-12-08 23:46:05,001 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-08 23:46:05,001 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-08 23:46:05,002 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-08 23:46:05,002 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 23:46:05,019 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((0 == pumpRunning && 1 <= methaneLevelCritical) && 1 <= waterLevel) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || ((0 == methaneLevelCritical && 2 <= waterLevel) && splverifierCounter == 0)) || !(systemActive == 1)) || (((0 == methaneLevelCritical && 0 == pumpRunning) && 1 <= waterLevel) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-08 23:46:05,019 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-08 23:46:05,046 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4b083a23-deb7-4429-8edc-0f03c69a612e/bin-2019/utaipan/witness.graphml [2018-12-08 23:46:05,046 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 23:46:05,047 INFO L168 Benchmark]: Toolchain (without parser) took 20730.07 ms. Allocated memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: 1.2 GB). Free memory was 945.9 MB in the beginning and 976.3 MB in the end (delta: -30.4 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-12-08 23:46:05,047 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:46:05,048 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -135.0 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-12-08 23:46:05,048 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:46:05,048 INFO L168 Benchmark]: Boogie Preprocessor took 21.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 23:46:05,048 INFO L168 Benchmark]: RCFGBuilder took 328.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.3 MB). Peak memory consumption was 49.3 MB. Max. memory is 11.5 GB. [2018-12-08 23:46:05,049 INFO L168 Benchmark]: TraceAbstraction took 19977.13 ms. Allocated memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: 1.1 GB). Free memory was 1.0 GB in the beginning and 976.3 MB in the end (delta: 52.6 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-12-08 23:46:05,049 INFO L168 Benchmark]: Witness Printer took 61.43 ms. Allocated memory is still 2.2 GB. Free memory was 976.3 MB in the beginning and 976.3 MB in the end (delta: 21.0 kB). Peak memory consumption was 21.0 kB. Max. memory is 11.5 GB. [2018-12-08 23:46:05,050 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 318.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -135.0 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 328.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.3 MB). Peak memory consumption was 49.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19977.13 ms. Allocated memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: 1.1 GB). Free memory was 1.0 GB in the beginning and 976.3 MB in the end (delta: 52.6 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. * Witness Printer took 61.43 ms. Allocated memory is still 2.2 GB. Free memory was 976.3 MB in the beginning and 976.3 MB in the end (delta: 21.0 kB). Peak memory consumption was 21.0 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 351]: Loop Invariant Derived loop invariant: ((((((((0 == pumpRunning && 1 <= methaneLevelCritical) && 1 <= waterLevel) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || ((0 == methaneLevelCritical && 2 <= waterLevel) && splverifierCounter == 0)) || !(systemActive == 1)) || (((0 == methaneLevelCritical && 0 == pumpRunning) && 1 <= waterLevel) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 913]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 350]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 903]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 166 locations, 1 error locations. SAFE Result, 19.9s OverallTime, 16 OverallIterations, 3 TraceHistogramMax, 6.9s AutomataDifference, 0.0s DeadEndRemovalTime, 2.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 3261 SDtfs, 2757 SDslu, 10642 SDs, 0 SdLazy, 5631 SolverSat, 840 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 2532 GetRequests, 2324 SyntacticMatches, 27 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2050occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.1s AbstIntTime, 7 AbstIntIterations, 3 AbstIntStrong, 0.9982378718078113 AbsIntWeakeningRatio, 0.8571428571428571 AbsIntAvgWeakeningVarsNumRemoved, 44.463736263736266 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 16 MinimizatonAttempts, 457 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 69 LocationsWithAnnotation, 5191 PreInvPairs, 5333 NumberOfFragments, 2223 HoareAnnotationTreeSize, 5191 FomulaSimplifications, 9194 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 69 FomulaSimplificationsInter, 21062 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 3126 NumberOfCodeBlocks, 3051 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 4048 ConstructedInterpolants, 0 QuantifiedInterpolants, 964771 SizeOfPredicates, 26 NumberOfNonLiveVariables, 4512 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 26 InterpolantComputations, 12 PerfectInterpolantSequences, 1272/1381 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...