./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product60_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_1dcafa1d-2856-430d-879a-62ef1898856d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1dcafa1d-2856-430d-879a-62ef1898856d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1dcafa1d-2856-430d-879a-62ef1898856d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1dcafa1d-2856-430d-879a-62ef1898856d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product60_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1dcafa1d-2856-430d-879a-62ef1898856d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1dcafa1d-2856-430d-879a-62ef1898856d/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 e5628f313afbfffa53e61454ca424855ee3b0eb7 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 04:20:20,942 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 04:20:20,943 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 04:20:20,949 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 04:20:20,949 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 04:20:20,950 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 04:20:20,950 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 04:20:20,951 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 04:20:20,952 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 04:20:20,952 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 04:20:20,953 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 04:20:20,953 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 04:20:20,953 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 04:20:20,954 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 04:20:20,954 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 04:20:20,955 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 04:20:20,955 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 04:20:20,956 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 04:20:20,957 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 04:20:20,958 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 04:20:20,958 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 04:20:20,959 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 04:20:20,960 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 04:20:20,960 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 04:20:20,960 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 04:20:20,961 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 04:20:20,961 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 04:20:20,962 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 04:20:20,962 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 04:20:20,962 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 04:20:20,963 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 04:20:20,963 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 04:20:20,963 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 04:20:20,963 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 04:20:20,964 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 04:20:20,964 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 04:20:20,964 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1dcafa1d-2856-430d-879a-62ef1898856d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 04:20:20,971 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 04:20:20,971 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 04:20:20,972 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 04:20:20,972 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 04:20:20,972 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 04:20:20,972 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 04:20:20,972 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 04:20:20,972 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 04:20:20,972 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 04:20:20,973 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 04:20:20,973 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 04:20:20,973 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 04:20:20,973 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 04:20:20,973 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 04:20:20,973 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 04:20:20,973 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 04:20:20,973 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 04:20:20,974 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 04:20:20,974 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 04:20:20,974 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 04:20:20,974 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 04:20:20,974 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 04:20:20,974 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 04:20:20,974 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 04:20:20,974 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 04:20:20,974 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 04:20:20,974 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 04:20:20,974 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 04:20:20,975 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 04:20:20,975 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 04:20:20,975 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 04:20:20,975 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 04:20:20,975 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 04:20:20,975 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 04:20:20,975 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 04:20:20,975 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 04:20:20,975 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_1dcafa1d-2856-430d-879a-62ef1898856d/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 -> e5628f313afbfffa53e61454ca424855ee3b0eb7 [2018-12-03 04:20:20,992 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 04:20:20,998 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 04:20:21,000 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 04:20:21,001 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 04:20:21,001 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 04:20:21,002 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1dcafa1d-2856-430d-879a-62ef1898856d/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product60_true-unreach-call_false-termination.cil.c [2018-12-03 04:20:21,046 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1dcafa1d-2856-430d-879a-62ef1898856d/bin-2019/utaipan/data/9ec856218/f532ea1ca15e4da38f2d8955e04a2d75/FLAG0284daee3 [2018-12-03 04:20:21,465 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 04:20:21,465 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1dcafa1d-2856-430d-879a-62ef1898856d/sv-benchmarks/c/product-lines/minepump_spec4_product60_true-unreach-call_false-termination.cil.c [2018-12-03 04:20:21,471 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1dcafa1d-2856-430d-879a-62ef1898856d/bin-2019/utaipan/data/9ec856218/f532ea1ca15e4da38f2d8955e04a2d75/FLAG0284daee3 [2018-12-03 04:20:21,479 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1dcafa1d-2856-430d-879a-62ef1898856d/bin-2019/utaipan/data/9ec856218/f532ea1ca15e4da38f2d8955e04a2d75 [2018-12-03 04:20:21,481 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 04:20:21,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 04:20:21,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 04:20:21,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 04:20:21,485 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 04:20:21,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:20:21" (1/1) ... [2018-12-03 04:20:21,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc82c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:20:21, skipping insertion in model container [2018-12-03 04:20:21,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:20:21" (1/1) ... [2018-12-03 04:20:21,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 04:20:21,517 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 04:20:21,675 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 04:20:21,714 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 04:20:21,754 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 04:20:21,769 INFO L195 MainTranslator]: Completed translation [2018-12-03 04:20:21,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:20:21 WrapperNode [2018-12-03 04:20:21,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 04:20:21,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 04:20:21,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 04:20:21,770 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 04:20:21,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:20:21" (1/1) ... [2018-12-03 04:20:21,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:20:21" (1/1) ... [2018-12-03 04:20:21,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 04:20:21,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 04:20:21,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 04:20:21,790 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 04:20:21,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:20:21" (1/1) ... [2018-12-03 04:20:21,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:20:21" (1/1) ... [2018-12-03 04:20:21,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:20:21" (1/1) ... [2018-12-03 04:20:21,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:20:21" (1/1) ... [2018-12-03 04:20:21,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:20:21" (1/1) ... [2018-12-03 04:20:21,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:20:21" (1/1) ... [2018-12-03 04:20:21,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:20:21" (1/1) ... [2018-12-03 04:20:21,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 04:20:21,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 04:20:21,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 04:20:21,812 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 04:20:21,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:20:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1dcafa1d-2856-430d-879a-62ef1898856d/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 [2018-12-03 04:20:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-03 04:20:21,846 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-03 04:20:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-03 04:20:21,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-03 04:20:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 04:20:21,846 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 04:20:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-03 04:20:21,846 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-03 04:20:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-03 04:20:21,846 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-03 04:20:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 04:20:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-03 04:20:21,847 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-03 04:20:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-03 04:20:21,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-03 04:20:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-03 04:20:21,847 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-03 04:20:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-03 04:20:21,847 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-03 04:20:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-03 04:20:21,847 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-03 04:20:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-12-03 04:20:21,847 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-12-03 04:20:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-03 04:20:21,848 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-03 04:20:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-03 04:20:21,848 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-03 04:20:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-03 04:20:21,848 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-03 04:20:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-03 04:20:21,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-03 04:20:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-03 04:20:21,848 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-03 04:20:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-03 04:20:21,848 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-03 04:20:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-03 04:20:21,848 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-03 04:20:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-03 04:20:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-03 04:20:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-03 04:20:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-03 04:20:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-03 04:20:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-03 04:20:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-03 04:20:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-03 04:20:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-03 04:20:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-03 04:20:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-03 04:20:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-03 04:20:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-03 04:20:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-03 04:20:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-03 04:20:21,850 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-03 04:20:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-03 04:20:21,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-03 04:20:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-03 04:20:21,850 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-03 04:20:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-03 04:20:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 04:20:21,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 04:20:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-03 04:20:21,850 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-03 04:20:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-03 04:20:21,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-03 04:20:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 04:20:21,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 04:20:22,178 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 04:20:22,178 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-03 04:20:22,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:20:22 BoogieIcfgContainer [2018-12-03 04:20:22,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 04:20:22,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 04:20:22,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 04:20:22,182 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 04:20:22,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 04:20:21" (1/3) ... [2018-12-03 04:20:22,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71da85b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 04:20:22, skipping insertion in model container [2018-12-03 04:20:22,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:20:21" (2/3) ... [2018-12-03 04:20:22,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71da85b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 04:20:22, skipping insertion in model container [2018-12-03 04:20:22,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:20:22" (3/3) ... [2018-12-03 04:20:22,184 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product60_true-unreach-call_false-termination.cil.c [2018-12-03 04:20:22,190 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 04:20:22,196 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 04:20:22,205 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 04:20:22,227 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 04:20:22,227 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 04:20:22,227 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 04:20:22,227 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 04:20:22,227 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 04:20:22,227 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 04:20:22,227 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 04:20:22,227 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 04:20:22,240 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2018-12-03 04:20:22,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-03 04:20:22,245 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:20:22,246 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] [2018-12-03 04:20:22,247 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:20:22,250 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:20:22,251 INFO L82 PathProgramCache]: Analyzing trace with hash -216920679, now seen corresponding path program 1 times [2018-12-03 04:20:22,252 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:20:22,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:22,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:20:22,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:22,280 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:20:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:20:22,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:20:22,386 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:20:22,386 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 04:20:22,386 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:20:22,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 04:20:22,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 04:20:22,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 04:20:22,399 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 2 states. [2018-12-03 04:20:22,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:20:22,422 INFO L93 Difference]: Finished difference Result 306 states and 373 transitions. [2018-12-03 04:20:22,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 04:20:22,423 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-03 04:20:22,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:20:22,431 INFO L225 Difference]: With dead ends: 306 [2018-12-03 04:20:22,431 INFO L226 Difference]: Without dead ends: 153 [2018-12-03 04:20:22,433 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 [2018-12-03 04:20:22,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-12-03 04:20:22,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2018-12-03 04:20:22,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-12-03 04:20:22,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 178 transitions. [2018-12-03 04:20:22,466 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 178 transitions. Word has length 46 [2018-12-03 04:20:22,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:20:22,466 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 178 transitions. [2018-12-03 04:20:22,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 04:20:22,466 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 178 transitions. [2018-12-03 04:20:22,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-03 04:20:22,468 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:20:22,468 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] [2018-12-03 04:20:22,468 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:20:22,468 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:20:22,468 INFO L82 PathProgramCache]: Analyzing trace with hash 384858318, now seen corresponding path program 1 times [2018-12-03 04:20:22,468 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:20:22,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:22,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:20:22,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:22,469 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:20:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:20:22,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:20:22,517 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:20:22,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 04:20:22,518 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:20:22,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 04:20:22,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 04:20:22,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 04:20:22,519 INFO L87 Difference]: Start difference. First operand 153 states and 178 transitions. Second operand 3 states. [2018-12-03 04:20:22,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:20:22,532 INFO L93 Difference]: Finished difference Result 245 states and 283 transitions. [2018-12-03 04:20:22,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 04:20:22,532 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-03 04:20:22,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:20:22,534 INFO L225 Difference]: With dead ends: 245 [2018-12-03 04:20:22,534 INFO L226 Difference]: Without dead ends: 144 [2018-12-03 04:20:22,534 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 [2018-12-03 04:20:22,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-12-03 04:20:22,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-12-03 04:20:22,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-12-03 04:20:22,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 166 transitions. [2018-12-03 04:20:22,543 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 166 transitions. Word has length 47 [2018-12-03 04:20:22,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:20:22,543 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 166 transitions. [2018-12-03 04:20:22,543 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 04:20:22,543 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 166 transitions. [2018-12-03 04:20:22,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-03 04:20:22,544 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:20:22,544 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:20:22,544 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:20:22,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:20:22,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1912552053, now seen corresponding path program 1 times [2018-12-03 04:20:22,544 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:20:22,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:22,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:20:22,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:22,545 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:20:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:20:22,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:20:22,629 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:20:22,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 04:20:22,629 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:20:22,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 04:20:22,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 04:20:22,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-03 04:20:22,630 INFO L87 Difference]: Start difference. First operand 144 states and 166 transitions. Second operand 7 states. [2018-12-03 04:20:22,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:20:22,886 INFO L93 Difference]: Finished difference Result 434 states and 518 transitions. [2018-12-03 04:20:22,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 04:20:22,886 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-03 04:20:22,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:20:22,889 INFO L225 Difference]: With dead ends: 434 [2018-12-03 04:20:22,889 INFO L226 Difference]: Without dead ends: 314 [2018-12-03 04:20:22,890 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-03 04:20:22,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2018-12-03 04:20:22,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 302. [2018-12-03 04:20:22,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2018-12-03 04:20:22,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 360 transitions. [2018-12-03 04:20:22,918 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 360 transitions. Word has length 52 [2018-12-03 04:20:22,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:20:22,918 INFO L480 AbstractCegarLoop]: Abstraction has 302 states and 360 transitions. [2018-12-03 04:20:22,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 04:20:22,919 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 360 transitions. [2018-12-03 04:20:22,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-03 04:20:22,921 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:20:22,921 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] [2018-12-03 04:20:22,921 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:20:22,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:20:22,921 INFO L82 PathProgramCache]: Analyzing trace with hash -801889334, now seen corresponding path program 1 times [2018-12-03 04:20:22,921 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:20:22,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:22,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:20:22,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:22,923 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:20:22,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:20:23,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:20:23,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:20:23,039 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-03 04:20:23,039 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:20:23,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 04:20:23,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 04:20:23,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-03 04:20:23,040 INFO L87 Difference]: Start difference. First operand 302 states and 360 transitions. Second operand 10 states. [2018-12-03 04:20:23,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:20:23,352 INFO L93 Difference]: Finished difference Result 1088 states and 1388 transitions. [2018-12-03 04:20:23,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-03 04:20:23,352 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-12-03 04:20:23,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:20:23,355 INFO L225 Difference]: With dead ends: 1088 [2018-12-03 04:20:23,356 INFO L226 Difference]: Without dead ends: 810 [2018-12-03 04:20:23,357 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 [2018-12-03 04:20:23,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2018-12-03 04:20:23,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 798. [2018-12-03 04:20:23,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 798 states. [2018-12-03 04:20:23,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 984 transitions. [2018-12-03 04:20:23,405 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 984 transitions. Word has length 57 [2018-12-03 04:20:23,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:20:23,405 INFO L480 AbstractCegarLoop]: Abstraction has 798 states and 984 transitions. [2018-12-03 04:20:23,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 04:20:23,405 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 984 transitions. [2018-12-03 04:20:23,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-03 04:20:23,408 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:20:23,409 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] [2018-12-03 04:20:23,409 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:20:23,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:20:23,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1294991664, now seen corresponding path program 1 times [2018-12-03 04:20:23,409 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:20:23,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:23,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:20:23,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:23,410 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:20:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:20:23,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:20:23,473 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:20:23,473 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 04:20:23,473 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:20:23,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 04:20:23,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 04:20:23,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 04:20:23,474 INFO L87 Difference]: Start difference. First operand 798 states and 984 transitions. Second operand 4 states. [2018-12-03 04:20:23,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:20:23,715 INFO L93 Difference]: Finished difference Result 1977 states and 2649 transitions. [2018-12-03 04:20:23,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-03 04:20:23,715 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-12-03 04:20:23,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:20:23,720 INFO L225 Difference]: With dead ends: 1977 [2018-12-03 04:20:23,721 INFO L226 Difference]: Without dead ends: 1203 [2018-12-03 04:20:23,723 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-03 04:20:23,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2018-12-03 04:20:23,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1065. [2018-12-03 04:20:23,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1065 states. [2018-12-03 04:20:23,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1322 transitions. [2018-12-03 04:20:23,774 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1322 transitions. Word has length 61 [2018-12-03 04:20:23,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:20:23,774 INFO L480 AbstractCegarLoop]: Abstraction has 1065 states and 1322 transitions. [2018-12-03 04:20:23,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 04:20:23,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1322 transitions. [2018-12-03 04:20:23,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-03 04:20:23,776 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:20:23,776 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:20:23,776 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:20:23,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:20:23,776 INFO L82 PathProgramCache]: Analyzing trace with hash 42536157, now seen corresponding path program 1 times [2018-12-03 04:20:23,776 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:20:23,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:23,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:20:23,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:23,777 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:20:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:20:23,830 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-03 04:20:23,830 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:20:23,830 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 04:20:23,831 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 90 with the following transitions: [2018-12-03 04:20:23,832 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [59], [94], [103], [107], [111], [114], [119], [125], [127], [133], [136], [139], [151], [152], [175], [176], [191], [198], [201], [235], [262], [266], [267], [270], [271], [272], [273], [274], [276], [277], [278], [279], [280], [281], [282], [283], [284], [290], [302], [303], [308], [309], [310], [311], [324], [325], [330], [331], [332] [2018-12-03 04:20:23,854 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 04:20:23,854 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 04:20:24,233 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 04:20:24,234 INFO L272 AbstractInterpreter]: Visited 67 different actions 145 times. Merged at 13 different actions 19 times. Never widened. Performed 4970 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4970 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 133 variables. [2018-12-03 04:20:24,244 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:20:24,245 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 04:20:24,245 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:20:24,245 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1dcafa1d-2856-430d-879a-62ef1898856d/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 [2018-12-03 04:20:24,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:20:24,252 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 04:20:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:20:24,328 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 04:20:24,401 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-03 04:20:24,402 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 04:20:24,543 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-03 04:20:24,559 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 04:20:24,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-12-03 04:20:24,559 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 04:20:24,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-03 04:20:24,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-03 04:20:24,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-12-03 04:20:24,560 INFO L87 Difference]: Start difference. First operand 1065 states and 1322 transitions. Second operand 12 states. [2018-12-03 04:20:26,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:20:26,458 INFO L93 Difference]: Finished difference Result 2501 states and 3349 transitions. [2018-12-03 04:20:26,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-12-03 04:20:26,458 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2018-12-03 04:20:26,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:20:26,465 INFO L225 Difference]: With dead ends: 2501 [2018-12-03 04:20:26,465 INFO L226 Difference]: Without dead ends: 1738 [2018-12-03 04:20:26,469 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 182 SyntacticMatches, 8 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=645, Invalid=2547, Unknown=0, NotChecked=0, Total=3192 [2018-12-03 04:20:26,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2018-12-03 04:20:26,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1527. [2018-12-03 04:20:26,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1527 states. [2018-12-03 04:20:26,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 1917 transitions. [2018-12-03 04:20:26,530 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 1917 transitions. Word has length 89 [2018-12-03 04:20:26,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:20:26,531 INFO L480 AbstractCegarLoop]: Abstraction has 1527 states and 1917 transitions. [2018-12-03 04:20:26,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-03 04:20:26,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 1917 transitions. [2018-12-03 04:20:26,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-12-03 04:20:26,534 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:20:26,534 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:20:26,534 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:20:26,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:20:26,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1933970932, now seen corresponding path program 1 times [2018-12-03 04:20:26,534 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:20:26,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:26,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:20:26,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:26,535 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:20:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:20:26,618 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-03 04:20:26,618 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:20:26,618 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 04:20:26,618 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2018-12-03 04:20:26,618 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [117], [119], [125], [127], [133], [139], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [169], [173], [174], [175], [176], [184], [185], [188], [191], [195], [201], [230], [234], [235], [241], [244], [246], [249], [256], [259], [267], [270], [271], [272], [273], [274], [276], [277], [278], [279], [280], [281], [282], [283], [284], [288], [289], [290], [292], [293], [294], [295], [298], [299], [300], [301], [310], [311], [314], [315], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [330], [331], [332], [334], [335], [336], [337], [340], [341] [2018-12-03 04:20:26,621 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 04:20:26,621 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 04:20:27,264 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 04:20:27,264 INFO L272 AbstractInterpreter]: Visited 125 different actions 449 times. Merged at 17 different actions 32 times. Never widened. Performed 16257 root evaluator evaluations with a maximum evaluation depth of 5. Performed 16257 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 5 fixpoints after 3 different actions. Largest state had 133 variables. [2018-12-03 04:20:27,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:20:27,268 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 04:20:27,268 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:20:27,268 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1dcafa1d-2856-430d-879a-62ef1898856d/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 [2018-12-03 04:20:27,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:20:27,274 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 04:20:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:20:27,338 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 04:20:27,357 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-12-03 04:20:27,357 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 04:20:27,496 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-03 04:20:27,521 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-03 04:20:27,521 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-03 04:20:27,521 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:20:27,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 04:20:27,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 04:20:27,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 04:20:27,522 INFO L87 Difference]: Start difference. First operand 1527 states and 1917 transitions. Second operand 6 states. [2018-12-03 04:20:27,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:20:27,597 INFO L93 Difference]: Finished difference Result 3086 states and 4076 transitions. [2018-12-03 04:20:27,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 04:20:27,597 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-12-03 04:20:27,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:20:27,603 INFO L225 Difference]: With dead ends: 3086 [2018-12-03 04:20:27,604 INFO L226 Difference]: Without dead ends: 1583 [2018-12-03 04:20:27,607 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 293 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-03 04:20:27,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2018-12-03 04:20:27,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1567. [2018-12-03 04:20:27,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1567 states. [2018-12-03 04:20:27,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 1961 transitions. [2018-12-03 04:20:27,668 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 1961 transitions. Word has length 149 [2018-12-03 04:20:27,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:20:27,668 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 1961 transitions. [2018-12-03 04:20:27,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 04:20:27,668 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 1961 transitions. [2018-12-03 04:20:27,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-12-03 04:20:27,670 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:20:27,670 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:20:27,671 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:20:27,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:20:27,671 INFO L82 PathProgramCache]: Analyzing trace with hash -902930034, now seen corresponding path program 1 times [2018-12-03 04:20:27,671 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:20:27,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:27,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:20:27,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:27,672 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:20:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:20:27,750 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-03 04:20:27,750 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:20:27,750 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 04:20:27,751 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2018-12-03 04:20:27,751 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [117], [119], [125], [127], [133], [139], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [171], [173], [174], [175], [176], [184], [185], [188], [191], [195], [201], [230], [234], [235], [241], [244], [246], [249], [256], [259], [267], [270], [271], [272], [273], [274], [276], [277], [278], [279], [280], [281], [282], [283], [284], [288], [289], [290], [292], [293], [294], [295], [298], [299], [300], [301], [310], [311], [314], [315], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [330], [331], [332], [334], [335], [336], [337], [340], [341] [2018-12-03 04:20:27,754 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 04:20:27,754 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 04:20:27,858 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 04:20:27,859 INFO L272 AbstractInterpreter]: Visited 54 different actions 54 times. Never merged. Never widened. Performed 1942 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1942 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-03 04:20:27,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:20:27,860 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 04:20:28,005 INFO L227 lantSequenceWeakener]: Weakened 64 states. On average, predicates are now at 96.62% of their original sizes. [2018-12-03 04:20:28,005 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 04:20:28,056 INFO L418 sIntCurrentIteration]: We unified 148 AI predicates to 148 [2018-12-03 04:20:28,056 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 04:20:28,056 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 04:20:28,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2018-12-03 04:20:28,056 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:20:28,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-03 04:20:28,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-03 04:20:28,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-12-03 04:20:28,057 INFO L87 Difference]: Start difference. First operand 1567 states and 1961 transitions. Second operand 11 states. [2018-12-03 04:20:29,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:20:29,778 INFO L93 Difference]: Finished difference Result 3404 states and 4271 transitions. [2018-12-03 04:20:29,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-03 04:20:29,778 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 149 [2018-12-03 04:20:29,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:20:29,786 INFO L225 Difference]: With dead ends: 3404 [2018-12-03 04:20:29,786 INFO L226 Difference]: Without dead ends: 1861 [2018-12-03 04:20:29,790 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 151 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2018-12-03 04:20:29,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2018-12-03 04:20:29,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1813. [2018-12-03 04:20:29,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1813 states. [2018-12-03 04:20:29,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2244 transitions. [2018-12-03 04:20:29,872 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2244 transitions. Word has length 149 [2018-12-03 04:20:29,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:20:29,872 INFO L480 AbstractCegarLoop]: Abstraction has 1813 states and 2244 transitions. [2018-12-03 04:20:29,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-03 04:20:29,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2244 transitions. [2018-12-03 04:20:29,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-12-03 04:20:29,875 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:20:29,875 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:20:29,875 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:20:29,875 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:20:29,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1295809301, now seen corresponding path program 1 times [2018-12-03 04:20:29,876 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:20:29,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:29,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:20:29,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:29,877 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:20:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:20:29,963 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-03 04:20:29,963 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:20:29,963 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 04:20:29,963 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 154 with the following transitions: [2018-12-03 04:20:29,964 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [125], [127], [133], [139], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [171], [173], [174], [175], [176], [184], [185], [188], [191], [195], [201], [230], [234], [235], [241], [244], [246], [249], [256], [259], [262], [266], [267], [270], [271], [272], [273], [274], [276], [277], [278], [279], [280], [281], [282], [283], [284], [288], [289], [290], [292], [293], [294], [295], [298], [299], [300], [301], [302], [303], [310], [311], [314], [315], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [330], [331], [332], [334], [335], [336], [337], [340], [341] [2018-12-03 04:20:29,966 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 04:20:29,966 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 04:20:30,663 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 04:20:30,663 INFO L272 AbstractInterpreter]: Visited 130 different actions 595 times. Merged at 16 different actions 46 times. Never widened. Performed 19109 root evaluator evaluations with a maximum evaluation depth of 5. Performed 19109 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-12-03 04:20:30,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:20:30,665 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 04:20:30,665 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:20:30,665 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1dcafa1d-2856-430d-879a-62ef1898856d/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 [2018-12-03 04:20:30,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:20:30,671 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 04:20:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:20:30,732 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 04:20:30,774 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:20:30,774 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 04:20:30,927 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-03 04:20:30,943 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 04:20:30,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-12-03 04:20:30,943 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 04:20:30,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-03 04:20:30,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-03 04:20:30,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-12-03 04:20:30,944 INFO L87 Difference]: Start difference. First operand 1813 states and 2244 transitions. Second operand 14 states. [2018-12-03 04:20:32,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:20:32,321 INFO L93 Difference]: Finished difference Result 3769 states and 5168 transitions. [2018-12-03 04:20:32,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-03 04:20:32,321 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 153 [2018-12-03 04:20:32,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:20:32,327 INFO L225 Difference]: With dead ends: 3769 [2018-12-03 04:20:32,328 INFO L226 Difference]: Without dead ends: 2520 [2018-12-03 04:20:32,330 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 302 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=265, Invalid=995, Unknown=0, NotChecked=0, Total=1260 [2018-12-03 04:20:32,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2520 states. [2018-12-03 04:20:32,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2520 to 2079. [2018-12-03 04:20:32,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2079 states. [2018-12-03 04:20:32,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2079 states to 2079 states and 2565 transitions. [2018-12-03 04:20:32,401 INFO L78 Accepts]: Start accepts. Automaton has 2079 states and 2565 transitions. Word has length 153 [2018-12-03 04:20:32,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:20:32,401 INFO L480 AbstractCegarLoop]: Abstraction has 2079 states and 2565 transitions. [2018-12-03 04:20:32,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-03 04:20:32,401 INFO L276 IsEmpty]: Start isEmpty. Operand 2079 states and 2565 transitions. [2018-12-03 04:20:32,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-12-03 04:20:32,403 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:20:32,404 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:20:32,404 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:20:32,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:20:32,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1370465422, now seen corresponding path program 1 times [2018-12-03 04:20:32,405 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:20:32,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:32,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:20:32,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:32,406 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:20:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:20:32,465 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-03 04:20:32,465 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:20:32,466 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 04:20:32,466 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 154 with the following transitions: [2018-12-03 04:20:32,466 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [117], [119], [122], [125], [127], [133], [139], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [171], [173], [174], [175], [176], [181], [183], [184], [185], [188], [191], [195], [201], [230], [234], [235], [241], [244], [246], [249], [256], [259], [267], [270], [271], [272], [273], [274], [276], [277], [278], [279], [280], [281], [282], [283], [284], [288], [289], [290], [292], [293], [294], [295], [298], [299], [300], [301], [304], [305], [310], [311], [314], [315], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [330], [331], [332], [334], [335], [336], [337], [340], [341] [2018-12-03 04:20:32,467 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 04:20:32,467 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 04:20:32,617 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 04:20:32,617 INFO L272 AbstractInterpreter]: Visited 59 different actions 83 times. Merged at 4 different actions 4 times. Never widened. Performed 4632 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4632 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-03 04:20:32,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:20:32,619 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 04:20:32,736 INFO L227 lantSequenceWeakener]: Weakened 68 states. On average, predicates are now at 96.61% of their original sizes. [2018-12-03 04:20:32,736 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 04:20:32,795 INFO L418 sIntCurrentIteration]: We unified 152 AI predicates to 152 [2018-12-03 04:20:32,795 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 04:20:32,795 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 04:20:32,795 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [8] total 20 [2018-12-03 04:20:32,795 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:20:32,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-03 04:20:32,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-03 04:20:32,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2018-12-03 04:20:32,796 INFO L87 Difference]: Start difference. First operand 2079 states and 2565 transitions. Second operand 14 states. [2018-12-03 04:20:34,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:20:34,354 INFO L93 Difference]: Finished difference Result 4244 states and 5263 transitions. [2018-12-03 04:20:34,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-03 04:20:34,354 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 153 [2018-12-03 04:20:34,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:20:34,359 INFO L225 Difference]: With dead ends: 4244 [2018-12-03 04:20:34,359 INFO L226 Difference]: Without dead ends: 2189 [2018-12-03 04:20:34,362 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 159 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2018-12-03 04:20:34,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2189 states. [2018-12-03 04:20:34,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2189 to 2136. [2018-12-03 04:20:34,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2136 states. [2018-12-03 04:20:34,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 2627 transitions. [2018-12-03 04:20:34,426 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 2627 transitions. Word has length 153 [2018-12-03 04:20:34,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:20:34,427 INFO L480 AbstractCegarLoop]: Abstraction has 2136 states and 2627 transitions. [2018-12-03 04:20:34,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-03 04:20:34,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 2627 transitions. [2018-12-03 04:20:34,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-12-03 04:20:34,429 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:20:34,429 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:20:34,430 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:20:34,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:20:34,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1425178415, now seen corresponding path program 1 times [2018-12-03 04:20:34,430 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:20:34,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:34,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:20:34,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:34,430 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:20:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:20:34,470 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-03 04:20:34,470 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:20:34,470 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 04:20:34,471 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:20:34,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 04:20:34,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 04:20:34,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 04:20:34,471 INFO L87 Difference]: Start difference. First operand 2136 states and 2627 transitions. Second operand 4 states. [2018-12-03 04:20:34,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:20:34,608 INFO L93 Difference]: Finished difference Result 3431 states and 4214 transitions. [2018-12-03 04:20:34,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 04:20:34,608 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2018-12-03 04:20:34,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:20:34,611 INFO L225 Difference]: With dead ends: 3431 [2018-12-03 04:20:34,611 INFO L226 Difference]: Without dead ends: 1319 [2018-12-03 04:20:34,614 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 04:20:34,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2018-12-03 04:20:34,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1289. [2018-12-03 04:20:34,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1289 states. [2018-12-03 04:20:34,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1547 transitions. [2018-12-03 04:20:34,654 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1547 transitions. Word has length 154 [2018-12-03 04:20:34,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:20:34,654 INFO L480 AbstractCegarLoop]: Abstraction has 1289 states and 1547 transitions. [2018-12-03 04:20:34,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 04:20:34,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1547 transitions. [2018-12-03 04:20:34,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-12-03 04:20:34,656 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:20:34,656 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, 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] [2018-12-03 04:20:34,656 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:20:34,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:20:34,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1066589445, now seen corresponding path program 1 times [2018-12-03 04:20:34,657 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:20:34,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:34,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:20:34,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:34,657 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:20:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:20:34,724 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-12-03 04:20:34,725 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:20:34,725 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 04:20:34,725 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 208 with the following transitions: [2018-12-03 04:20:34,725 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [55], [57], [58], [59], [62], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [125], [127], [133], [139], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [171], [173], [174], [175], [176], [184], [185], [188], [191], [195], [201], [230], [234], [235], [241], [244], [246], [249], [256], [259], [262], [266], [267], [270], [271], [272], [273], [274], [276], [277], [278], [279], [280], [281], [282], [283], [284], [288], [289], [290], [292], [293], [294], [295], [298], [299], [300], [301], [302], [303], [310], [311], [314], [315], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [330], [331], [332], [334], [335], [336], [337], [340], [341] [2018-12-03 04:20:34,726 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 04:20:34,726 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 04:20:35,400 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 04:20:35,400 INFO L272 AbstractInterpreter]: Visited 131 different actions 607 times. Merged at 19 different actions 55 times. Never widened. Performed 19145 root evaluator evaluations with a maximum evaluation depth of 5. Performed 19145 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 12 fixpoints after 4 different actions. Largest state had 133 variables. [2018-12-03 04:20:35,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:20:35,402 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 04:20:35,402 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:20:35,402 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1dcafa1d-2856-430d-879a-62ef1898856d/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 [2018-12-03 04:20:35,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:20:35,408 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 04:20:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:20:35,479 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 04:20:35,524 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-12-03 04:20:35,524 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 04:20:35,678 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-12-03 04:20:35,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-03 04:20:35,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-12-03 04:20:35,693 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:20:35,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 04:20:35,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 04:20:35,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-12-03 04:20:35,694 INFO L87 Difference]: Start difference. First operand 1289 states and 1547 transitions. Second operand 6 states. [2018-12-03 04:20:35,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:20:35,735 INFO L93 Difference]: Finished difference Result 2140 states and 2627 transitions. [2018-12-03 04:20:35,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 04:20:35,736 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 207 [2018-12-03 04:20:35,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:20:35,738 INFO L225 Difference]: With dead ends: 2140 [2018-12-03 04:20:35,738 INFO L226 Difference]: Without dead ends: 1277 [2018-12-03 04:20:35,740 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 409 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-12-03 04:20:35,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2018-12-03 04:20:35,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1277. [2018-12-03 04:20:35,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1277 states. [2018-12-03 04:20:35,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1524 transitions. [2018-12-03 04:20:35,803 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1524 transitions. Word has length 207 [2018-12-03 04:20:35,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:20:35,803 INFO L480 AbstractCegarLoop]: Abstraction has 1277 states and 1524 transitions. [2018-12-03 04:20:35,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 04:20:35,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1524 transitions. [2018-12-03 04:20:35,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-12-03 04:20:35,805 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:20:35,806 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:20:35,806 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:20:35,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:20:35,806 INFO L82 PathProgramCache]: Analyzing trace with hash -253401112, now seen corresponding path program 1 times [2018-12-03 04:20:35,806 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:20:35,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:35,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:20:35,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:20:35,807 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:20:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:20:35,860 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 36 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-12-03 04:20:35,860 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:20:35,860 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 04:20:35,861 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 182 with the following transitions: [2018-12-03 04:20:35,861 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [117], [119], [125], [127], [130], [133], [136], [139], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [171], [173], [174], [175], [176], [184], [185], [188], [191], [195], [198], [201], [230], [234], [235], [239], [240], [241], [244], [246], [249], [256], [259], [267], [270], [271], [272], [273], [274], [276], [277], [278], [279], [280], [281], [282], [283], [284], [288], [289], [290], [292], [293], [294], [295], [298], [299], [300], [301], [306], [307], [308], [309], [310], [311], [314], [315], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [330], [331], [332], [334], [335], [336], [337], [340], [341] [2018-12-03 04:20:35,862 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 04:20:35,862 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 04:20:36,064 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 04:20:36,064 INFO L272 AbstractInterpreter]: Visited 87 different actions 151 times. Merged at 13 different actions 13 times. Never widened. Performed 5342 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5342 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 133 variables. [2018-12-03 04:20:36,065 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:20:36,065 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 04:20:36,065 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:20:36,065 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1dcafa1d-2856-430d-879a-62ef1898856d/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 [2018-12-03 04:20:36,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:20:36,075 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 04:20:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:20:36,136 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 04:20:36,189 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-12-03 04:20:36,189 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 04:20:36,312 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 36 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-12-03 04:20:36,337 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-03 04:20:36,337 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-12-03 04:20:36,337 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:20:36,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-03 04:20:36,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-03 04:20:36,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-03 04:20:36,338 INFO L87 Difference]: Start difference. First operand 1277 states and 1524 transitions. Second operand 5 states. [2018-12-03 04:20:36,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:20:36,362 INFO L93 Difference]: Finished difference Result 1803 states and 2144 transitions. [2018-12-03 04:20:36,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-03 04:20:36,362 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 181 [2018-12-03 04:20:36,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:20:36,363 INFO L225 Difference]: With dead ends: 1803 [2018-12-03 04:20:36,363 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 04:20:36,365 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 359 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-03 04:20:36,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 04:20:36,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 04:20:36,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 04:20:36,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 04:20:36,366 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 181 [2018-12-03 04:20:36,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:20:36,366 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 04:20:36,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-03 04:20:36,366 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 04:20:36,366 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 04:20:36,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 04:20:36,403 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,427 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,449 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,450 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,451 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,455 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,597 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,606 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,606 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,614 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,623 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,623 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,623 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,672 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,680 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,681 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,681 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,681 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,683 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,695 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,705 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,707 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,708 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,708 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,708 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,709 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,731 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,731 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,732 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,733 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,736 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,737 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,737 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,817 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,823 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,824 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,832 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,835 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,836 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,864 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,864 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,865 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:36,867 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 04:20:38,300 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 36 [2018-12-03 04:20:38,375 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2018-12-03 04:20:38,375 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2018-12-03 04:20:38,375 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2018-12-03 04:20:38,375 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2018-12-03 04:20:38,375 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 68 76) no Hoare annotation was computed. [2018-12-03 04:20:38,376 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 548 572) the Hoare annotation is: true [2018-12-03 04:20:38,376 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 548 572) no Hoare annotation was computed. [2018-12-03 04:20:38,376 INFO L444 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= ~systemActive~0 0)) .cse1) (or (< ~waterLevel~0 2) .cse2))) [2018-12-03 04:20:38,376 INFO L448 ceAbstractionStarter]: For program point L560(lines 560 566) no Hoare annotation was computed. [2018-12-03 04:20:38,376 INFO L444 ceAbstractionStarter]: At program point L558(line 558) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= ~systemActive~0 0)) .cse1) (or (< ~waterLevel~0 2) .cse2))) [2018-12-03 04:20:38,376 INFO L448 ceAbstractionStarter]: For program point L558-1(line 558) no Hoare annotation was computed. [2018-12-03 04:20:38,376 INFO L448 ceAbstractionStarter]: For program point L556(lines 556 569) no Hoare annotation was computed. [2018-12-03 04:20:38,376 INFO L448 ceAbstractionStarter]: For program point L556-1(lines 548 572) no Hoare annotation was computed. [2018-12-03 04:20:38,376 INFO L451 ceAbstractionStarter]: At program point L554(line 554) the Hoare annotation is: true [2018-12-03 04:20:38,376 INFO L448 ceAbstractionStarter]: For program point L554-1(line 554) no Hoare annotation was computed. [2018-12-03 04:20:38,377 INFO L444 ceAbstractionStarter]: At program point L161(line 161) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-03 04:20:38,377 INFO L444 ceAbstractionStarter]: At program point L161-1(line 161) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-03 04:20:38,377 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 155 177) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-03 04:20:38,377 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 155 177) no Hoare annotation was computed. [2018-12-03 04:20:38,377 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 155 177) no Hoare annotation was computed. [2018-12-03 04:20:38,377 INFO L444 ceAbstractionStarter]: At program point L167(line 167) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= main_~tmp~0 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-03 04:20:38,377 INFO L444 ceAbstractionStarter]: At program point L167-1(line 167) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= main_~tmp~0 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-03 04:20:38,377 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 172) no Hoare annotation was computed. [2018-12-03 04:20:38,377 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 165 172) no Hoare annotation was computed. [2018-12-03 04:20:38,378 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-12-03 04:20:38,378 INFO L444 ceAbstractionStarter]: At program point L162(line 162) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-03 04:20:38,378 INFO L448 ceAbstractionStarter]: For program point stopSystemEXIT(lines 806 820) no Hoare annotation was computed. [2018-12-03 04:20:38,378 INFO L444 ceAbstractionStarter]: At program point L812(line 812) the Hoare annotation is: (let ((.cse1 (< ~waterLevel~0 2)) (.cse0 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1) (or .cse1 (= |old(~systemActive~0)| 0) (and (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or .cse0 (not (= ~waterLevel~0 1))))) [2018-12-03 04:20:38,378 INFO L448 ceAbstractionStarter]: For program point L810(lines 810 816) no Hoare annotation was computed. [2018-12-03 04:20:38,378 INFO L444 ceAbstractionStarter]: At program point stopSystemENTRY(lines 806 820) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~waterLevel~0 2) (= |old(~systemActive~0)| 0) (and (not (= ~systemActive~0 0)) .cse0)) (or .cse0 (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1))))) [2018-12-03 04:20:38,378 INFO L448 ceAbstractionStarter]: For program point stopSystemFINAL(lines 806 820) no Hoare annotation was computed. [2018-12-03 04:20:38,378 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 723 731) no Hoare annotation was computed. [2018-12-03 04:20:38,378 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 723 731) the Hoare annotation is: true [2018-12-03 04:20:38,378 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 723 731) no Hoare annotation was computed. [2018-12-03 04:20:38,379 INFO L448 ceAbstractionStarter]: For program point L796(lines 796 800) no Hoare annotation was computed. [2018-12-03 04:20:38,379 INFO L451 ceAbstractionStarter]: At program point L794(line 794) the Hoare annotation is: true [2018-12-03 04:20:38,379 INFO L448 ceAbstractionStarter]: For program point L796-2(lines 796 800) no Hoare annotation was computed. [2018-12-03 04:20:38,379 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 787 805) the Hoare annotation is: true [2018-12-03 04:20:38,379 INFO L448 ceAbstractionStarter]: For program point L794-1(line 794) no Hoare annotation was computed. [2018-12-03 04:20:38,379 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 787 805) no Hoare annotation was computed. [2018-12-03 04:20:38,379 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 787 805) no Hoare annotation was computed. [2018-12-03 04:20:38,379 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2018-12-03 04:20:38,379 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2018-12-03 04:20:38,379 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 145 154) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-03 04:20:38,379 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 145 154) no Hoare annotation was computed. [2018-12-03 04:20:38,379 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 145 154) no Hoare annotation was computed. [2018-12-03 04:20:38,379 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 712 722) the Hoare annotation is: true [2018-12-03 04:20:38,379 INFO L451 ceAbstractionStarter]: At program point L717(line 717) the Hoare annotation is: true [2018-12-03 04:20:38,380 INFO L448 ceAbstractionStarter]: For program point L717-1(line 717) no Hoare annotation was computed. [2018-12-03 04:20:38,380 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 712 722) no Hoare annotation was computed. [2018-12-03 04:20:38,380 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 712 722) no Hoare annotation was computed. [2018-12-03 04:20:38,380 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 704 711) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~waterLevel~0 2) (= ~systemActive~0 0) .cse0) (or .cse0 (< ~waterLevel~0 1) (not (= ~systemActive~0 1))))) [2018-12-03 04:20:38,380 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 704 711) no Hoare annotation was computed. [2018-12-03 04:20:38,380 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 704 711) no Hoare annotation was computed. [2018-12-03 04:20:38,380 INFO L448 ceAbstractionStarter]: For program point L982(lines 982 988) no Hoare annotation was computed. [2018-12-03 04:20:38,380 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 978 991) no Hoare annotation was computed. [2018-12-03 04:20:38,380 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 978 991) the Hoare annotation is: true [2018-12-03 04:20:38,380 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 978 991) no Hoare annotation was computed. [2018-12-03 04:20:38,380 INFO L444 ceAbstractionStarter]: At program point L672(line 672) the Hoare annotation is: (or (< ~waterLevel~0 1) (and (= 0 ~pumpRunning~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1))) [2018-12-03 04:20:38,380 INFO L448 ceAbstractionStarter]: For program point L672-1(lines 653 677) no Hoare annotation was computed. [2018-12-03 04:20:38,380 INFO L444 ceAbstractionStarter]: At program point L667(line 667) the Hoare annotation is: (or (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-03 04:20:38,380 INFO L444 ceAbstractionStarter]: At program point L663(line 663) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (and (<= 1 processEnvironment_~tmp~6) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse0 .cse1))) [2018-12-03 04:20:38,380 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 653 677) no Hoare annotation was computed. [2018-12-03 04:20:38,380 INFO L448 ceAbstractionStarter]: For program point L661(lines 661 669) no Hoare annotation was computed. [2018-12-03 04:20:38,380 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 653 677) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-03 04:20:38,380 INFO L444 ceAbstractionStarter]: At program point L659(line 659) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1))) [2018-12-03 04:20:38,380 INFO L448 ceAbstractionStarter]: For program point L659-1(line 659) no Hoare annotation was computed. [2018-12-03 04:20:38,380 INFO L448 ceAbstractionStarter]: For program point L657(lines 657 674) no Hoare annotation was computed. [2018-12-03 04:20:38,381 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 619 625) no Hoare annotation was computed. [2018-12-03 04:20:38,381 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 619 625) the Hoare annotation is: true [2018-12-03 04:20:38,381 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 830 897) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-03 04:20:38,381 INFO L444 ceAbstractionStarter]: At program point L890(lines 839 891) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-03 04:20:38,381 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 830 897) no Hoare annotation was computed. [2018-12-03 04:20:38,381 INFO L444 ceAbstractionStarter]: At program point L880(line 880) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (and .cse0 (<= 2 ~waterLevel~0)) (not (= ~systemActive~0 0))) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-03 04:20:38,381 INFO L448 ceAbstractionStarter]: For program point L878(lines 878 884) no Hoare annotation was computed. [2018-12-03 04:20:38,381 INFO L444 ceAbstractionStarter]: At program point L878-1(lines 870 885) the Hoare annotation is: (let ((.cse1 (= test_~splverifierCounter~0 0)) (.cse0 (= ~systemActive~0 1))) (or (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~systemActive~0 0) (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse1 (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0) .cse0))) [2018-12-03 04:20:38,381 INFO L448 ceAbstractionStarter]: For program point L841(lines 840 889) no Hoare annotation was computed. [2018-12-03 04:20:38,381 INFO L444 ceAbstractionStarter]: At program point L872(line 872) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) (not (= ~systemActive~0 0)) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-03 04:20:38,381 INFO L448 ceAbstractionStarter]: For program point L870(lines 870 885) no Hoare annotation was computed. [2018-12-03 04:20:38,381 INFO L444 ceAbstractionStarter]: At program point L862(line 862) the Hoare annotation is: (let ((.cse1 (= test_~splverifierCounter~0 0)) (.cse0 (= ~systemActive~0 1))) (or (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~systemActive~0 0) (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse1 (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0) .cse0))) [2018-12-03 04:20:38,381 INFO L448 ceAbstractionStarter]: For program point L860(lines 860 866) no Hoare annotation was computed. [2018-12-03 04:20:38,381 INFO L448 ceAbstractionStarter]: For program point L860-1(lines 860 866) no Hoare annotation was computed. [2018-12-03 04:20:38,381 INFO L444 ceAbstractionStarter]: At program point L887(lines 840 889) the Hoare annotation is: (let ((.cse1 (= test_~splverifierCounter~0 0)) (.cse0 (= ~systemActive~0 1))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 0) (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse1 (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0) .cse0))) [2018-12-03 04:20:38,381 INFO L444 ceAbstractionStarter]: At program point L852(line 852) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= 1 ~waterLevel~0)) (.cse2 (= ~systemActive~0 1)) (.cse3 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and .cse0 .cse1 .cse2 .cse3) (and (= ~systemActive~0 0) .cse0 .cse1 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse2 .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-03 04:20:38,381 INFO L448 ceAbstractionStarter]: For program point L850(lines 850 856) no Hoare annotation was computed. [2018-12-03 04:20:38,382 INFO L448 ceAbstractionStarter]: For program point L850-1(lines 850 856) no Hoare annotation was computed. [2018-12-03 04:20:38,382 INFO L448 ceAbstractionStarter]: For program point L842(lines 842 846) no Hoare annotation was computed. [2018-12-03 04:20:38,382 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 830 897) no Hoare annotation was computed. [2018-12-03 04:20:38,382 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 678 685) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-12-03 04:20:38,382 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 678 685) no Hoare annotation was computed. [2018-12-03 04:20:38,382 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 678 685) no Hoare annotation was computed. [2018-12-03 04:20:38,382 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 992 1000) no Hoare annotation was computed. [2018-12-03 04:20:38,382 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 992 1000) the Hoare annotation is: true [2018-12-03 04:20:38,382 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 992 1000) no Hoare annotation was computed. [2018-12-03 04:20:38,382 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-03 04:20:38,382 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)) [2018-12-03 04:20:38,382 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 04:20:38,382 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 687 703) no Hoare annotation was computed. [2018-12-03 04:20:38,382 INFO L444 ceAbstractionStarter]: At program point L698(line 698) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-12-03 04:20:38,382 INFO L448 ceAbstractionStarter]: For program point L698-1(lines 687 703) no Hoare annotation was computed. [2018-12-03 04:20:38,382 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 687 703) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-12-03 04:20:38,382 INFO L448 ceAbstractionStarter]: For program point L694(lines 694 700) no Hoare annotation was computed. [2018-12-03 04:20:38,382 INFO L444 ceAbstractionStarter]: At program point L692(line 692) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-12-03 04:20:38,382 INFO L448 ceAbstractionStarter]: For program point L692-1(line 692) no Hoare annotation was computed. [2018-12-03 04:20:38,382 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 768 786) no Hoare annotation was computed. [2018-12-03 04:20:38,382 INFO L448 ceAbstractionStarter]: For program point L777(lines 777 781) no Hoare annotation was computed. [2018-12-03 04:20:38,382 INFO L451 ceAbstractionStarter]: At program point L775(line 775) the Hoare annotation is: true [2018-12-03 04:20:38,383 INFO L448 ceAbstractionStarter]: For program point L777-2(lines 777 781) no Hoare annotation was computed. [2018-12-03 04:20:38,383 INFO L448 ceAbstractionStarter]: For program point L775-1(line 775) no Hoare annotation was computed. [2018-12-03 04:20:38,383 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 768 786) the Hoare annotation is: true [2018-12-03 04:20:38,383 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 768 786) no Hoare annotation was computed. [2018-12-03 04:20:38,383 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 969 977) the Hoare annotation is: true [2018-12-03 04:20:38,383 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 969 977) no Hoare annotation was computed. [2018-12-03 04:20:38,383 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 969 977) no Hoare annotation was computed. [2018-12-03 04:20:38,383 INFO L448 ceAbstractionStarter]: For program point L929-1(lines 925 936) no Hoare annotation was computed. [2018-12-03 04:20:38,383 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 925 936) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 0)) (or (= ~methaneLevelCritical~0 1) (not (= |old(~methaneLevelCritical~0)| 1)) .cse0 .cse1 .cse2))) [2018-12-03 04:20:38,383 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 925 936) no Hoare annotation was computed. [2018-12-03 04:20:38,383 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 937 945) the Hoare annotation is: true [2018-12-03 04:20:38,383 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 937 945) no Hoare annotation was computed. [2018-12-03 04:20:38,383 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 937 945) no Hoare annotation was computed. [2018-12-03 04:20:38,383 INFO L444 ceAbstractionStarter]: At program point L608(line 608) the Hoare annotation is: (let ((.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< |old(~waterLevel~0)| 1))) (and (or .cse0 .cse1 (= ~waterLevel~0 |old(~waterLevel~0)|) .cse2) (or .cse0 .cse2 .cse3 (not (= |old(~waterLevel~0)| 1))) (or (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse3) (or (< |old(~waterLevel~0)| 2) .cse2)) (or .cse0 (not (= ~systemActive~0 0)) .cse1))) [2018-12-03 04:20:38,383 INFO L444 ceAbstractionStarter]: At program point L606(lines 606 612) the Hoare annotation is: (let ((.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (and .cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 (<= |old(~waterLevel~0)| 1) .cse1 .cse2) (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse3) (let ((.cse4 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or (and (<= 2 ~waterLevel~0) .cse4) (and (= 0 ~pumpRunning~0) .cse4) (or (< |old(~waterLevel~0)| 2) .cse1))) (or .cse0 (not (= ~systemActive~0 0)) (< |old(~waterLevel~0)| 1) .cse3)))) [2018-12-03 04:20:38,383 INFO L444 ceAbstractionStarter]: At program point L601(line 601) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< |old(~waterLevel~0)| 1)) (.cse0 (not (= ~systemActive~0 1)))) (and (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (< |old(~waterLevel~0)| 2) .cse0)) (or .cse1 (not (= ~systemActive~0 0)) .cse2) (or .cse1 .cse2 .cse0))) [2018-12-03 04:20:38,383 INFO L448 ceAbstractionStarter]: For program point L599(lines 598 617) no Hoare annotation was computed. [2018-12-03 04:20:38,383 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 595 618) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 (or (< |old(~waterLevel~0)| 2) .cse1)) (or .cse2 .cse1 .cse0 (not (= |old(~waterLevel~0)| 1))) (or .cse2 (not (= ~systemActive~0 0)) (< |old(~waterLevel~0)| 1) .cse0))) [2018-12-03 04:20:38,383 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 595 618) no Hoare annotation was computed. [2018-12-03 04:20:38,384 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 595 618) no Hoare annotation was computed. [2018-12-03 04:20:38,384 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 80 109) no Hoare annotation was computed. [2018-12-03 04:20:38,384 INFO L448 ceAbstractionStarter]: For program point L94(lines 94 98) no Hoare annotation was computed. [2018-12-03 04:20:38,384 INFO L451 ceAbstractionStarter]: At program point L94-1(lines 94 98) the Hoare annotation is: true [2018-12-03 04:20:38,384 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 80 109) the Hoare annotation is: true [2018-12-03 04:20:38,384 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-12-03 04:20:38,384 INFO L451 ceAbstractionStarter]: At program point L90-2(lines 90 104) the Hoare annotation is: true [2018-12-03 04:20:38,384 INFO L451 ceAbstractionStarter]: At program point L86(line 86) the Hoare annotation is: true [2018-12-03 04:20:38,384 INFO L448 ceAbstractionStarter]: For program point L86-1(line 86) no Hoare annotation was computed. [2018-12-03 04:20:38,384 INFO L451 ceAbstractionStarter]: At program point L105(lines 80 109) the Hoare annotation is: true [2018-12-03 04:20:38,384 INFO L448 ceAbstractionStarter]: For program point L101(line 101) no Hoare annotation was computed. [2018-12-03 04:20:38,384 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 901 912) the Hoare annotation is: (or (= ~waterLevel~0 |old(~waterLevel~0)|) (or (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1)))) [2018-12-03 04:20:38,384 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 901 912) no Hoare annotation was computed. [2018-12-03 04:20:38,384 INFO L448 ceAbstractionStarter]: For program point L905-1(lines 901 912) no Hoare annotation was computed. [2018-12-03 04:20:38,384 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 137 143) no Hoare annotation was computed. [2018-12-03 04:20:38,384 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 137 143) the Hoare annotation is: true [2018-12-03 04:20:38,384 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 04:20:38,384 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)) [2018-12-03 04:20:38,384 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 04:20:38,384 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 04:20:38,384 INFO L448 ceAbstractionStarter]: For program point startSystemEXIT(lines 821 828) no Hoare annotation was computed. [2018-12-03 04:20:38,385 INFO L444 ceAbstractionStarter]: At program point startSystemENTRY(lines 821 828) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 1)) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= |old(~systemActive~0)| 1))) (.cse2 (not (= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse3) (or (not (= ~methaneLevelCritical~0 1)) .cse3 .cse0 .cse1 .cse2) (or (= |old(~systemActive~0)| 0) (not (= ~systemActive~0 0)) (< ~waterLevel~0 2)))) [2018-12-03 04:20:38,385 INFO L448 ceAbstractionStarter]: For program point startSystemFINAL(lines 821 828) no Hoare annotation was computed. [2018-12-03 04:20:38,385 INFO L444 ceAbstractionStarter]: At program point L641(line 641) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~5) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (or .cse0 .cse1) (< ~waterLevel~0 2) .cse2) (or .cse0 .cse2 .cse1 (not (= ~waterLevel~0 1))))) [2018-12-03 04:20:38,385 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 627 651) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= ~systemActive~0 1))) [2018-12-03 04:20:38,385 INFO L444 ceAbstractionStarter]: At program point L637(line 637) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-03 04:20:38,385 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 627 651) no Hoare annotation was computed. [2018-12-03 04:20:38,385 INFO L448 ceAbstractionStarter]: For program point L635(lines 635 643) no Hoare annotation was computed. [2018-12-03 04:20:38,385 INFO L444 ceAbstractionStarter]: At program point L633(line 633) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= ~systemActive~0 1))) [2018-12-03 04:20:38,385 INFO L448 ceAbstractionStarter]: For program point L633-1(line 633) no Hoare annotation was computed. [2018-12-03 04:20:38,385 INFO L448 ceAbstractionStarter]: For program point L631(lines 631 648) no Hoare annotation was computed. [2018-12-03 04:20:38,385 INFO L444 ceAbstractionStarter]: At program point L646(line 646) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-03 04:20:38,385 INFO L448 ceAbstractionStarter]: For program point L646-1(lines 627 651) no Hoare annotation was computed. [2018-12-03 04:20:38,385 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 913 924) no Hoare annotation was computed. [2018-12-03 04:20:38,385 INFO L448 ceAbstractionStarter]: For program point L917-1(lines 913 924) no Hoare annotation was computed. [2018-12-03 04:20:38,385 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 913 924) the Hoare annotation is: (let ((.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< |old(~waterLevel~0)| 1)) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse3 .cse2 (< |old(~waterLevel~0)| 2)) (or .cse0 (not (= ~systemActive~0 0)) .cse1 .cse3))) [2018-12-03 04:20:38,385 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 578) no Hoare annotation was computed. [2018-12-03 04:20:38,386 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 574 581) no Hoare annotation was computed. [2018-12-03 04:20:38,386 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 574 581) the Hoare annotation is: true [2018-12-03 04:20:38,386 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 574 581) no Hoare annotation was computed. [2018-12-03 04:20:38,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 04:20:38 BoogieIcfgContainer [2018-12-03 04:20:38,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 04:20:38,397 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 04:20:38,397 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 04:20:38,397 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 04:20:38,397 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:20:22" (3/4) ... [2018-12-03 04:20:38,400 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 04:20:38,405 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-03 04:20:38,405 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-03 04:20:38,405 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-12-03 04:20:38,405 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 04:20:38,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure stopSystem [2018-12-03 04:20:38,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-03 04:20:38,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-03 04:20:38,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-03 04:20:38,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-03 04:20:38,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-03 04:20:38,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-03 04:20:38,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-03 04:20:38,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-03 04:20:38,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-03 04:20:38,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-03 04:20:38,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-12-03 04:20:38,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-03 04:20:38,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 04:20:38,407 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-03 04:20:38,407 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-03 04:20:38,407 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-12-03 04:20:38,407 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-03 04:20:38,407 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-03 04:20:38,407 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-03 04:20:38,407 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-03 04:20:38,407 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-03 04:20:38,407 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-03 04:20:38,408 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-12-03 04:20:38,408 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-03 04:20:38,408 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-03 04:20:38,408 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-03 04:20:38,414 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2018-12-03 04:20:38,414 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-12-03 04:20:38,414 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-03 04:20:38,415 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-03 04:20:38,415 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-03 04:20:38,415 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 04:20:38,434 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0) || !(\old(systemActive) == 1)) || (((systemActive == 0 && 0 == pumpRunning) && 1 <= waterLevel) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (((splverifierCounter == 0 && waterLevel == \old(waterLevel)) && pumpRunning == 0) && systemActive == 1) [2018-12-03 04:20:38,434 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-03 04:20:38,465 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1dcafa1d-2856-430d-879a-62ef1898856d/bin-2019/utaipan/witness.graphml [2018-12-03 04:20:38,465 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 04:20:38,466 INFO L168 Benchmark]: Toolchain (without parser) took 16985.00 ms. Allocated memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: 899.2 MB). Free memory was 948.1 MB in the beginning and 1.8 GB in the end (delta: -821.0 MB). Peak memory consumption was 78.2 MB. Max. memory is 11.5 GB. [2018-12-03 04:20:38,466 INFO L168 Benchmark]: CDTParser took 0.13 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. [2018-12-03 04:20:38,466 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -141.3 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-12-03 04:20:38,467 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2018-12-03 04:20:38,467 INFO L168 Benchmark]: Boogie Preprocessor took 22.21 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. [2018-12-03 04:20:38,467 INFO L168 Benchmark]: RCFGBuilder took 366.73 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: 55.3 MB). Peak memory consumption was 55.3 MB. Max. memory is 11.5 GB. [2018-12-03 04:20:38,467 INFO L168 Benchmark]: TraceAbstraction took 16216.72 ms. Allocated memory was 1.1 GB in the beginning and 1.9 GB in the end (delta: 796.4 MB). Free memory was 1.0 GB in the beginning and 1.8 GB in the end (delta: -738.7 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. [2018-12-03 04:20:38,467 INFO L168 Benchmark]: Witness Printer took 69.00 ms. Allocated memory is still 1.9 GB. Free memory was 1.8 GB in the beginning and 1.8 GB in the end (delta: 98.7 kB). Peak memory consumption was 98.7 kB. Max. memory is 11.5 GB. [2018-12-03 04:20:38,468 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 287.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -141.3 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.21 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 366.73 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: 55.3 MB). Peak memory consumption was 55.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16216.72 ms. Allocated memory was 1.1 GB in the beginning and 1.9 GB in the end (delta: 796.4 MB). Free memory was 1.0 GB in the beginning and 1.8 GB in the end (delta: -738.7 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. * Witness Printer took 69.00 ms. Allocated memory is still 1.9 GB. Free memory was 1.8 GB in the beginning and 1.8 GB in the end (delta: 98.7 kB). Peak memory consumption was 98.7 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 578]: 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: 840]: Loop Invariant Derived loop invariant: (((((((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0) || !(\old(systemActive) == 1)) || (((systemActive == 0 && 0 == pumpRunning) && 1 <= waterLevel) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (((splverifierCounter == 0 && waterLevel == \old(waterLevel)) && pumpRunning == 0) && systemActive == 1) - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 80]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 839]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 32 procedures, 166 locations, 1 error locations. SAFE Result, 16.1s OverallTime, 13 OverallIterations, 3 TraceHistogramMax, 7.7s AutomataDifference, 0.0s DeadEndRemovalTime, 2.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2672 SDtfs, 3621 SDslu, 7787 SDs, 0 SdLazy, 6899 SolverSat, 1746 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 2053 GetRequests, 1848 SyntacticMatches, 28 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2136occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.9s AbstIntTime, 7 AbstIntIterations, 2 AbstIntStrong, 0.9982589145197228 AbsIntWeakeningRatio, 0.8866666666666667 AbsIntAvgWeakeningVarsNumRemoved, 37.82 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 961 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 69 LocationsWithAnnotation, 5347 PreInvPairs, 5424 NumberOfFragments, 1425 HoareAnnotationTreeSize, 5347 FomulaSimplifications, 38337 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 69 FomulaSimplificationsInter, 14826 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 2277 NumberOfCodeBlocks, 2277 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3033 ConstructedInterpolants, 0 QuantifiedInterpolants, 595827 SizeOfPredicates, 19 NumberOfNonLiveVariables, 4419 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 23 InterpolantComputations, 9 PerfectInterpolantSequences, 813/882 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...