./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product54_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_62101250-6741-4643-89f2-59ba57baa791/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_62101250-6741-4643-89f2-59ba57baa791/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_62101250-6741-4643-89f2-59ba57baa791/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_62101250-6741-4643-89f2-59ba57baa791/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product54_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_62101250-6741-4643-89f2-59ba57baa791/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_62101250-6741-4643-89f2-59ba57baa791/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 2d2a2b756a74af71e6c6aa0a16e78dafb1256d78 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 12:30:15,076 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:30:15,077 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:30:15,086 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:30:15,086 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:30:15,087 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:30:15,088 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:30:15,089 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:30:15,090 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:30:15,090 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:30:15,091 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:30:15,091 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:30:15,092 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:30:15,092 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:30:15,093 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:30:15,094 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:30:15,095 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:30:15,096 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:30:15,097 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:30:15,099 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:30:15,100 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:30:15,101 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:30:15,103 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 12:30:15,103 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 12:30:15,103 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 12:30:15,104 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 12:30:15,104 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 12:30:15,105 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 12:30:15,105 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 12:30:15,107 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 12:30:15,107 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 12:30:15,108 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 12:30:15,108 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 12:30:15,108 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 12:30:15,109 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 12:30:15,109 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 12:30:15,109 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_62101250-6741-4643-89f2-59ba57baa791/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 12:30:15,120 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:30:15,120 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:30:15,120 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 12:30:15,121 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 12:30:15,121 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 12:30:15,121 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 12:30:15,121 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 12:30:15,121 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 12:30:15,121 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 12:30:15,121 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 12:30:15,122 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 12:30:15,122 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 12:30:15,122 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 12:30:15,123 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:30:15,123 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 12:30:15,123 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 12:30:15,123 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 12:30:15,124 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:30:15,124 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 12:30:15,124 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 12:30:15,124 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 12:30:15,124 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 12:30:15,124 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:30:15,124 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:30:15,124 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 12:30:15,125 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:30:15,125 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 12:30:15,125 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 12:30:15,125 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 12:30:15,125 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 12:30:15,125 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:30:15,125 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 12:30:15,126 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 12:30:15,126 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 12:30:15,126 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 12:30:15,126 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 12:30:15,128 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 12:30:15,128 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_62101250-6741-4643-89f2-59ba57baa791/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 -> 2d2a2b756a74af71e6c6aa0a16e78dafb1256d78 [2018-11-23 12:30:15,152 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:30:15,161 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:30:15,163 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:30:15,164 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:30:15,165 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:30:15,165 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_62101250-6741-4643-89f2-59ba57baa791/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product54_true-unreach-call_false-termination.cil.c [2018-11-23 12:30:15,209 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_62101250-6741-4643-89f2-59ba57baa791/bin-2019/utaipan/data/70d299779/c1911f9faf8f4a58a7e8cf7ceda77491/FLAG390c6e3e0 [2018-11-23 12:30:15,572 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:30:15,572 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_62101250-6741-4643-89f2-59ba57baa791/sv-benchmarks/c/product-lines/minepump_spec4_product54_true-unreach-call_false-termination.cil.c [2018-11-23 12:30:15,581 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_62101250-6741-4643-89f2-59ba57baa791/bin-2019/utaipan/data/70d299779/c1911f9faf8f4a58a7e8cf7ceda77491/FLAG390c6e3e0 [2018-11-23 12:30:15,965 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_62101250-6741-4643-89f2-59ba57baa791/bin-2019/utaipan/data/70d299779/c1911f9faf8f4a58a7e8cf7ceda77491 [2018-11-23 12:30:15,967 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:30:15,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:30:15,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:30:15,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:30:15,971 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:30:15,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:30:15" (1/1) ... [2018-11-23 12:30:15,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2582a661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:15, skipping insertion in model container [2018-11-23 12:30:15,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:30:15" (1/1) ... [2018-11-23 12:30:15,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:30:16,005 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:30:16,201 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:30:16,208 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:30:16,304 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:30:16,321 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:30:16,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:16 WrapperNode [2018-11-23 12:30:16,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:30:16,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:30:16,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:30:16,322 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:30:16,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:16" (1/1) ... [2018-11-23 12:30:16,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:16" (1/1) ... [2018-11-23 12:30:16,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:30:16,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:30:16,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:30:16,348 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:30:16,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:16" (1/1) ... [2018-11-23 12:30:16,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:16" (1/1) ... [2018-11-23 12:30:16,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:16" (1/1) ... [2018-11-23 12:30:16,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:16" (1/1) ... [2018-11-23 12:30:16,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:16" (1/1) ... [2018-11-23 12:30:16,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:16" (1/1) ... [2018-11-23 12:30:16,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:16" (1/1) ... [2018-11-23 12:30:16,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:30:16,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:30:16,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:30:16,380 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:30:16,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_62101250-6741-4643-89f2-59ba57baa791/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 12:30:16,422 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-23 12:30:16,423 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-23 12:30:16,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-23 12:30:16,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-23 12:30:16,423 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 12:30:16,423 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 12:30:16,423 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-23 12:30:16,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-23 12:30:16,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 12:30:16,423 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-23 12:30:16,424 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-23 12:30:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-23 12:30:16,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-23 12:30:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-23 12:30:16,424 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-23 12:30:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-23 12:30:16,424 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-23 12:30:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-23 12:30:16,424 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-23 12:30:16,425 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-23 12:30:16,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-23 12:30:16,425 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-23 12:30:16,425 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-23 12:30:16,425 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-23 12:30:16,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-23 12:30:16,425 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-23 12:30:16,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-23 12:30:16,425 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-23 12:30:16,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-23 12:30:16,426 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-23 12:30:16,426 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-23 12:30:16,426 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-23 12:30:16,426 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-23 12:30:16,426 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-23 12:30:16,426 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-23 12:30:16,426 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 12:30:16,426 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 12:30:16,426 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-11-23 12:30:16,426 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-11-23 12:30:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-23 12:30:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-23 12:30:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-23 12:30:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-23 12:30:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2018-11-23 12:30:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2018-11-23 12:30:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-23 12:30:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-23 12:30:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-23 12:30:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-23 12:30:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-23 12:30:16,428 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-23 12:30:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-23 12:30:16,428 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-23 12:30:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-23 12:30:16,428 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-23 12:30:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 12:30:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 12:30:16,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 12:30:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-23 12:30:16,429 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-23 12:30:16,429 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-23 12:30:16,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-23 12:30:16,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:30:16,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:30:16,883 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:30:16,883 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 12:30:16,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:30:16 BoogieIcfgContainer [2018-11-23 12:30:16,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:30:16,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 12:30:16,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 12:30:16,886 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 12:30:16,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:30:15" (1/3) ... [2018-11-23 12:30:16,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce87e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:30:16, skipping insertion in model container [2018-11-23 12:30:16,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:16" (2/3) ... [2018-11-23 12:30:16,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce87e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:30:16, skipping insertion in model container [2018-11-23 12:30:16,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:30:16" (3/3) ... [2018-11-23 12:30:16,890 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product54_true-unreach-call_false-termination.cil.c [2018-11-23 12:30:16,896 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 12:30:16,900 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 12:30:16,910 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 12:30:16,932 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 12:30:16,933 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 12:30:16,933 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 12:30:16,933 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 12:30:16,933 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 12:30:16,933 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 12:30:16,933 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 12:30:16,933 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 12:30:16,947 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states. [2018-11-23 12:30:16,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-23 12:30:16,953 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:30:16,954 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] [2018-11-23 12:30:16,955 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:30:16,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:30:16,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1486633802, now seen corresponding path program 1 times [2018-11-23 12:30:16,960 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:30:16,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:16,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:30:16,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:16,989 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:30:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:30:17,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:30:17,135 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:30:17,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 12:30:17,135 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:30:17,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 12:30:17,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 12:30:17,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 12:30:17,147 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 2 states. [2018-11-23 12:30:17,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:30:17,179 INFO L93 Difference]: Finished difference Result 300 states and 369 transitions. [2018-11-23 12:30:17,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 12:30:17,180 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-23 12:30:17,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:30:17,190 INFO L225 Difference]: With dead ends: 300 [2018-11-23 12:30:17,190 INFO L226 Difference]: Without dead ends: 150 [2018-11-23 12:30:17,194 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 [2018-11-23 12:30:17,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-11-23 12:30:17,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-11-23 12:30:17,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-11-23 12:30:17,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 176 transitions. [2018-11-23 12:30:17,232 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 176 transitions. Word has length 46 [2018-11-23 12:30:17,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:30:17,232 INFO L480 AbstractCegarLoop]: Abstraction has 150 states and 176 transitions. [2018-11-23 12:30:17,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 12:30:17,233 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 176 transitions. [2018-11-23 12:30:17,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-23 12:30:17,235 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:30:17,235 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] [2018-11-23 12:30:17,235 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:30:17,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:30:17,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1530271189, now seen corresponding path program 1 times [2018-11-23 12:30:17,236 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:30:17,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:17,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:30:17,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:17,237 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:30:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:30:17,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:30:17,318 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:30:17,318 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 12:30:17,318 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:30:17,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 12:30:17,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 12:30:17,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 12:30:17,320 INFO L87 Difference]: Start difference. First operand 150 states and 176 transitions. Second operand 3 states. [2018-11-23 12:30:17,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:30:17,341 INFO L93 Difference]: Finished difference Result 245 states and 287 transitions. [2018-11-23 12:30:17,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 12:30:17,342 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-23 12:30:17,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:30:17,344 INFO L225 Difference]: With dead ends: 245 [2018-11-23 12:30:17,344 INFO L226 Difference]: Without dead ends: 141 [2018-11-23 12:30:17,345 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 [2018-11-23 12:30:17,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-11-23 12:30:17,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-11-23 12:30:17,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-11-23 12:30:17,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 164 transitions. [2018-11-23 12:30:17,357 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 164 transitions. Word has length 47 [2018-11-23 12:30:17,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:30:17,357 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 164 transitions. [2018-11-23 12:30:17,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 12:30:17,357 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 164 transitions. [2018-11-23 12:30:17,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-23 12:30:17,358 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:30:17,359 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] [2018-11-23 12:30:17,359 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:30:17,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:30:17,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1827401059, now seen corresponding path program 1 times [2018-11-23 12:30:17,359 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:30:17,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:17,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:30:17,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:17,360 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:30:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:30:17,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:30:17,479 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:30:17,479 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 12:30:17,480 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:30:17,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 12:30:17,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 12:30:17,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-23 12:30:17,481 INFO L87 Difference]: Start difference. First operand 141 states and 164 transitions. Second operand 7 states. [2018-11-23 12:30:17,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:30:17,721 INFO L93 Difference]: Finished difference Result 258 states and 305 transitions. [2018-11-23 12:30:17,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 12:30:17,722 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-11-23 12:30:17,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:30:17,723 INFO L225 Difference]: With dead ends: 258 [2018-11-23 12:30:17,723 INFO L226 Difference]: Without dead ends: 141 [2018-11-23 12:30:17,724 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 [2018-11-23 12:30:17,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-11-23 12:30:17,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-11-23 12:30:17,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-11-23 12:30:17,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 163 transitions. [2018-11-23 12:30:17,737 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 163 transitions. Word has length 52 [2018-11-23 12:30:17,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:30:17,737 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 163 transitions. [2018-11-23 12:30:17,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 12:30:17,737 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 163 transitions. [2018-11-23 12:30:17,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-23 12:30:17,740 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:30:17,741 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:30:17,741 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:30:17,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:30:17,741 INFO L82 PathProgramCache]: Analyzing trace with hash -892679531, now seen corresponding path program 1 times [2018-11-23 12:30:17,742 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:30:17,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:17,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:30:17,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:17,743 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:30:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:30:17,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:30:17,842 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:30:17,842 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 12:30:17,842 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:30:17,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 12:30:17,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 12:30:17,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 12:30:17,843 INFO L87 Difference]: Start difference. First operand 141 states and 163 transitions. Second operand 5 states. [2018-11-23 12:30:18,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:30:18,155 INFO L93 Difference]: Finished difference Result 365 states and 439 transitions. [2018-11-23 12:30:18,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 12:30:18,159 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2018-11-23 12:30:18,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:30:18,160 INFO L225 Difference]: With dead ends: 365 [2018-11-23 12:30:18,160 INFO L226 Difference]: Without dead ends: 248 [2018-11-23 12:30:18,161 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-23 12:30:18,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2018-11-23 12:30:18,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 229. [2018-11-23 12:30:18,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2018-11-23 12:30:18,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 258 transitions. [2018-11-23 12:30:18,181 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 258 transitions. Word has length 70 [2018-11-23 12:30:18,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:30:18,182 INFO L480 AbstractCegarLoop]: Abstraction has 229 states and 258 transitions. [2018-11-23 12:30:18,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 12:30:18,182 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 258 transitions. [2018-11-23 12:30:18,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-23 12:30:18,183 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:30:18,184 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:30:18,184 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:30:18,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:30:18,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1850632469, now seen corresponding path program 1 times [2018-11-23 12:30:18,184 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:30:18,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:18,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:30:18,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:18,186 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:30:18,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:30:18,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:30:18,293 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:30:18,293 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-23 12:30:18,294 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:30:18,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 12:30:18,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 12:30:18,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-23 12:30:18,295 INFO L87 Difference]: Start difference. First operand 229 states and 258 transitions. Second operand 10 states. [2018-11-23 12:30:18,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:30:18,716 INFO L93 Difference]: Finished difference Result 735 states and 899 transitions. [2018-11-23 12:30:18,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 12:30:18,717 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2018-11-23 12:30:18,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:30:18,721 INFO L225 Difference]: With dead ends: 735 [2018-11-23 12:30:18,721 INFO L226 Difference]: Without dead ends: 530 [2018-11-23 12:30:18,729 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-11-23 12:30:18,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2018-11-23 12:30:18,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 520. [2018-11-23 12:30:18,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2018-11-23 12:30:18,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 606 transitions. [2018-11-23 12:30:18,765 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 606 transitions. Word has length 84 [2018-11-23 12:30:18,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:30:18,766 INFO L480 AbstractCegarLoop]: Abstraction has 520 states and 606 transitions. [2018-11-23 12:30:18,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 12:30:18,766 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 606 transitions. [2018-11-23 12:30:18,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-23 12:30:18,769 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:30:18,769 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:30:18,770 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:30:18,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:30:18,770 INFO L82 PathProgramCache]: Analyzing trace with hash 2104656055, now seen corresponding path program 1 times [2018-11-23 12:30:18,770 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:30:18,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:18,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:30:18,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:18,771 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:30:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:30:18,880 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 12:30:18,881 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:30:18,881 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:30:18,881 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 138 with the following transitions: [2018-11-23 12:30:18,883 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [105], [108], [110], [116], [118], [124], [129], [139], [140], [141], [142], [143], [144], [145], [147], [150], [154], [155], [163], [164], [193], [196], [200], [206], [209], [213], [214], [218], [221], [223], [226], [236], [241], [245], [246], [249], [264], [267], [268], [269], [270], [271], [272], [274], [275], [276], [277], [278], [279], [280], [281], [282], [286], [288], [289], [290], [291], [292], [293], [296], [297], [298], [299], [304], [305], [308], [309], [314], [315], [316], [317], [318], [319], [320], [321], [322], [324], [325], [326], [327], [338], [339] [2018-11-23 12:30:18,916 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:30:18,916 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:30:20,781 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:30:20,782 INFO L272 AbstractInterpreter]: Visited 116 different actions 744 times. Merged at 19 different actions 73 times. Never widened. Performed 30298 root evaluator evaluations with a maximum evaluation depth of 3. Performed 30298 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 13 fixpoints after 4 different actions. Largest state had 133 variables. [2018-11-23 12:30:20,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:30:20,789 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:30:20,789 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:30:20,789 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_62101250-6741-4643-89f2-59ba57baa791/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 12:30:20,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:30:20,797 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:30:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:30:20,889 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:30:20,999 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:30:20,999 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:30:21,233 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-23 12:30:21,249 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 12:30:21,250 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6, 9] total 16 [2018-11-23 12:30:21,250 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:30:21,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 12:30:21,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 12:30:21,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2018-11-23 12:30:21,251 INFO L87 Difference]: Start difference. First operand 520 states and 606 transitions. Second operand 8 states. [2018-11-23 12:30:22,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:30:22,177 INFO L93 Difference]: Finished difference Result 1361 states and 1748 transitions. [2018-11-23 12:30:22,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 12:30:22,177 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 137 [2018-11-23 12:30:22,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:30:22,181 INFO L225 Difference]: With dead ends: 1361 [2018-11-23 12:30:22,182 INFO L226 Difference]: Without dead ends: 976 [2018-11-23 12:30:22,183 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 263 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2018-11-23 12:30:22,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2018-11-23 12:30:22,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 892. [2018-11-23 12:30:22,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 892 states. [2018-11-23 12:30:22,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1083 transitions. [2018-11-23 12:30:22,231 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1083 transitions. Word has length 137 [2018-11-23 12:30:22,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:30:22,232 INFO L480 AbstractCegarLoop]: Abstraction has 892 states and 1083 transitions. [2018-11-23 12:30:22,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 12:30:22,232 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1083 transitions. [2018-11-23 12:30:22,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-11-23 12:30:22,234 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:30:22,234 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:30:22,234 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:30:22,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:30:22,234 INFO L82 PathProgramCache]: Analyzing trace with hash -567611887, now seen corresponding path program 1 times [2018-11-23 12:30:22,234 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:30:22,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:22,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:30:22,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:22,235 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:30:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:30:22,309 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 12:30:22,309 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:30:22,309 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:30:22,309 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 134 with the following transitions: [2018-11-23 12:30:22,310 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [108], [110], [116], [118], [124], [129], [139], [140], [141], [142], [143], [144], [145], [147], [150], [154], [155], [163], [164], [193], [196], [200], [206], [209], [213], [214], [218], [221], [223], [226], [236], [246], [249], [264], [267], [268], [269], [270], [271], [272], [274], [275], [276], [277], [278], [279], [280], [281], [282], [286], [288], [289], [290], [291], [292], [293], [296], [297], [304], [305], [308], [309], [314], [315], [316], [317], [318], [319], [320], [321], [322], [324], [325], [326], [327], [338], [339] [2018-11-23 12:30:22,313 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:30:22,313 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:30:22,856 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:30:22,857 INFO L272 AbstractInterpreter]: Visited 111 different actions 397 times. Merged at 17 different actions 35 times. Never widened. Performed 15698 root evaluator evaluations with a maximum evaluation depth of 3. Performed 15698 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 5 fixpoints after 3 different actions. Largest state had 133 variables. [2018-11-23 12:30:22,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:30:22,858 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:30:22,858 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:30:22,858 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_62101250-6741-4643-89f2-59ba57baa791/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 12:30:22,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:30:22,864 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:30:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:30:22,942 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:30:22,963 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-23 12:30:22,964 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:30:23,192 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 12:30:23,208 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 12:30:23,208 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-11-23 12:30:23,208 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:30:23,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 12:30:23,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 12:30:23,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 12:30:23,209 INFO L87 Difference]: Start difference. First operand 892 states and 1083 transitions. Second operand 6 states. [2018-11-23 12:30:23,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:30:23,249 INFO L93 Difference]: Finished difference Result 1780 states and 2210 transitions. [2018-11-23 12:30:23,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 12:30:23,249 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2018-11-23 12:30:23,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:30:23,252 INFO L225 Difference]: With dead ends: 1780 [2018-11-23 12:30:23,253 INFO L226 Difference]: Without dead ends: 912 [2018-11-23 12:30:23,254 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 263 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-23 12:30:23,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2018-11-23 12:30:23,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 912. [2018-11-23 12:30:23,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 912 states. [2018-11-23 12:30:23,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1107 transitions. [2018-11-23 12:30:23,288 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1107 transitions. Word has length 133 [2018-11-23 12:30:23,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:30:23,288 INFO L480 AbstractCegarLoop]: Abstraction has 912 states and 1107 transitions. [2018-11-23 12:30:23,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 12:30:23,288 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1107 transitions. [2018-11-23 12:30:23,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-11-23 12:30:23,290 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:30:23,290 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:30:23,291 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:30:23,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:30:23,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1710114353, now seen corresponding path program 1 times [2018-11-23 12:30:23,291 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:30:23,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:23,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:30:23,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:23,292 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:30:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:30:23,359 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 12:30:23,359 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:30:23,359 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:30:23,359 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 134 with the following transitions: [2018-11-23 12:30:23,359 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [108], [110], [116], [118], [124], [129], [139], [140], [141], [142], [143], [144], [145], [147], [152], [154], [155], [163], [164], [193], [196], [200], [206], [209], [213], [214], [218], [221], [223], [226], [236], [246], [249], [264], [267], [268], [269], [270], [271], [272], [274], [275], [276], [277], [278], [279], [280], [281], [282], [286], [288], [289], [290], [291], [292], [293], [296], [297], [304], [305], [308], [309], [314], [315], [316], [317], [318], [319], [320], [321], [322], [324], [325], [326], [327], [338], [339] [2018-11-23 12:30:23,362 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:30:23,362 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:30:24,041 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:30:24,041 INFO L272 AbstractInterpreter]: Visited 111 different actions 563 times. Merged at 17 different actions 57 times. Never widened. Performed 18510 root evaluator evaluations with a maximum evaluation depth of 3. Performed 18510 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 2 different actions. Largest state had 133 variables. [2018-11-23 12:30:24,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:30:24,042 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:30:24,042 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:30:24,042 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_62101250-6741-4643-89f2-59ba57baa791/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 [2018-11-23 12:30:24,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:30:24,048 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:30:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:30:24,125 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:30:24,168 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-23 12:30:24,169 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:30:24,334 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 12:30:24,349 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 12:30:24,350 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-11-23 12:30:24,350 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:30:24,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 12:30:24,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 12:30:24,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-23 12:30:24,350 INFO L87 Difference]: Start difference. First operand 912 states and 1107 transitions. Second operand 5 states. [2018-11-23 12:30:24,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:30:24,379 INFO L93 Difference]: Finished difference Result 1661 states and 2060 transitions. [2018-11-23 12:30:24,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 12:30:24,380 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2018-11-23 12:30:24,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:30:24,382 INFO L225 Difference]: With dead ends: 1661 [2018-11-23 12:30:24,383 INFO L226 Difference]: Without dead ends: 773 [2018-11-23 12:30:24,384 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 263 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-23 12:30:24,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2018-11-23 12:30:24,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 773. [2018-11-23 12:30:24,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 773 states. [2018-11-23 12:30:24,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 923 transitions. [2018-11-23 12:30:24,409 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 923 transitions. Word has length 133 [2018-11-23 12:30:24,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:30:24,410 INFO L480 AbstractCegarLoop]: Abstraction has 773 states and 923 transitions. [2018-11-23 12:30:24,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 12:30:24,410 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 923 transitions. [2018-11-23 12:30:24,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-23 12:30:24,411 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:30:24,411 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:30:24,411 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:30:24,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:30:24,412 INFO L82 PathProgramCache]: Analyzing trace with hash -2124895532, now seen corresponding path program 1 times [2018-11-23 12:30:24,412 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:30:24,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:24,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:30:24,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:24,413 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:30:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:30:24,492 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-23 12:30:24,492 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:30:24,493 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-23 12:30:24,493 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:30:24,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 12:30:24,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 12:30:24,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-23 12:30:24,494 INFO L87 Difference]: Start difference. First operand 773 states and 923 transitions. Second operand 9 states. [2018-11-23 12:30:24,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:30:24,958 INFO L93 Difference]: Finished difference Result 2078 states and 2539 transitions. [2018-11-23 12:30:24,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 12:30:24,959 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 137 [2018-11-23 12:30:24,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:30:24,966 INFO L225 Difference]: With dead ends: 2078 [2018-11-23 12:30:24,966 INFO L226 Difference]: Without dead ends: 1329 [2018-11-23 12:30:24,969 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2018-11-23 12:30:24,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2018-11-23 12:30:25,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1326. [2018-11-23 12:30:25,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1326 states. [2018-11-23 12:30:25,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1568 transitions. [2018-11-23 12:30:25,035 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1568 transitions. Word has length 137 [2018-11-23 12:30:25,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:30:25,035 INFO L480 AbstractCegarLoop]: Abstraction has 1326 states and 1568 transitions. [2018-11-23 12:30:25,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 12:30:25,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1568 transitions. [2018-11-23 12:30:25,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-23 12:30:25,037 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:30:25,037 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:30:25,038 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:30:25,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:30:25,038 INFO L82 PathProgramCache]: Analyzing trace with hash 497577496, now seen corresponding path program 1 times [2018-11-23 12:30:25,038 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:30:25,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:25,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:30:25,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:25,039 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:30:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:30:25,090 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-23 12:30:25,091 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:30:25,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 12:30:25,091 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:30:25,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 12:30:25,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 12:30:25,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 12:30:25,092 INFO L87 Difference]: Start difference. First operand 1326 states and 1568 transitions. Second operand 6 states. [2018-11-23 12:30:25,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:30:25,235 INFO L93 Difference]: Finished difference Result 1351 states and 1597 transitions. [2018-11-23 12:30:25,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 12:30:25,236 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2018-11-23 12:30:25,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:30:25,241 INFO L225 Difference]: With dead ends: 1351 [2018-11-23 12:30:25,241 INFO L226 Difference]: Without dead ends: 1348 [2018-11-23 12:30:25,241 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 12:30:25,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2018-11-23 12:30:25,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 1326. [2018-11-23 12:30:25,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1326 states. [2018-11-23 12:30:25,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1560 transitions. [2018-11-23 12:30:25,307 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1560 transitions. Word has length 141 [2018-11-23 12:30:25,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:30:25,307 INFO L480 AbstractCegarLoop]: Abstraction has 1326 states and 1560 transitions. [2018-11-23 12:30:25,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 12:30:25,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1560 transitions. [2018-11-23 12:30:25,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-11-23 12:30:25,310 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:30:25,310 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:30:25,310 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:30:25,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:30:25,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1399067579, now seen corresponding path program 1 times [2018-11-23 12:30:25,311 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:30:25,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:25,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:30:25,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:25,312 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:30:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:30:25,420 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-23 12:30:25,420 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:30:25,420 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:30:25,421 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 160 with the following transitions: [2018-11-23 12:30:25,421 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [59], [63], [64], [65], [68], [70], [76], [80], [83], [84], [85], [94], [98], [102], [105], [108], [110], [116], [118], [124], [129], [137], [138], [139], [140], [141], [142], [143], [144], [145], [147], [152], [154], [155], [163], [164], [193], [196], [200], [206], [209], [213], [214], [218], [221], [223], [226], [233], [236], [241], [245], [246], [249], [252], [254], [260], [264], [267], [268], [269], [270], [271], [272], [274], [275], [276], [277], [278], [279], [280], [281], [282], [284], [285], [286], [288], [289], [290], [291], [294], [295], [296], [297], [298], [299], [304], [305], [308], [309], [314], [315], [316], [317], [318], [319], [320], [321], [322], [324], [325], [326], [327], [330], [331], [332], [333], [336], [337], [338], [339] [2018-11-23 12:30:25,423 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:30:25,423 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:30:26,441 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:30:26,442 INFO L272 AbstractInterpreter]: Visited 134 different actions 650 times. Merged at 19 different actions 55 times. Never widened. Performed 20883 root evaluator evaluations with a maximum evaluation depth of 5. Performed 20883 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-11-23 12:30:26,443 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:30:26,443 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:30:26,443 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:30:26,443 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_62101250-6741-4643-89f2-59ba57baa791/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 [2018-11-23 12:30:26,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:30:26,450 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:30:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:30:26,525 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:30:26,627 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:30:26,627 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:30:26,834 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-23 12:30:26,850 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 12:30:26,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-11-23 12:30:26,850 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 12:30:26,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 12:30:26,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 12:30:26,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-11-23 12:30:26,851 INFO L87 Difference]: Start difference. First operand 1326 states and 1560 transitions. Second operand 14 states. [2018-11-23 12:30:28,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:30:28,213 INFO L93 Difference]: Finished difference Result 2921 states and 3639 transitions. [2018-11-23 12:30:28,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-23 12:30:28,213 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 159 [2018-11-23 12:30:28,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:30:28,220 INFO L225 Difference]: With dead ends: 2921 [2018-11-23 12:30:28,220 INFO L226 Difference]: Without dead ends: 1755 [2018-11-23 12:30:28,223 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 313 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=265, Invalid=995, Unknown=0, NotChecked=0, Total=1260 [2018-11-23 12:30:28,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2018-11-23 12:30:28,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1480. [2018-11-23 12:30:28,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1480 states. [2018-11-23 12:30:28,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 1715 transitions. [2018-11-23 12:30:28,302 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 1715 transitions. Word has length 159 [2018-11-23 12:30:28,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:30:28,302 INFO L480 AbstractCegarLoop]: Abstraction has 1480 states and 1715 transitions. [2018-11-23 12:30:28,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 12:30:28,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 1715 transitions. [2018-11-23 12:30:28,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-11-23 12:30:28,306 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:30:28,307 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:30:28,307 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:30:28,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:30:28,307 INFO L82 PathProgramCache]: Analyzing trace with hash -48945056, now seen corresponding path program 1 times [2018-11-23 12:30:28,307 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:30:28,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:28,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:30:28,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:30:28,308 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:30:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:30:28,417 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 43 proven. 10 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-23 12:30:28,417 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:30:28,417 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 12:30:28,418 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 230 with the following transitions: [2018-11-23 12:30:28,418 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [46], [48], [49], [50], [53], [55], [56], [59], [63], [64], [65], [68], [70], [76], [80], [83], [84], [85], [94], [98], [102], [105], [108], [110], [116], [118], [124], [129], [137], [138], [139], [140], [141], [142], [143], [144], [145], [147], [152], [154], [155], [163], [164], [193], [196], [200], [206], [209], [213], [214], [218], [221], [223], [226], [233], [236], [241], [245], [246], [249], [252], [254], [260], [264], [267], [268], [269], [270], [271], [272], [274], [275], [276], [277], [278], [279], [280], [281], [282], [284], [285], [286], [288], [289], [290], [291], [294], [295], [296], [297], [298], [299], [304], [305], [308], [309], [314], [315], [316], [317], [318], [319], [320], [321], [322], [324], [325], [326], [327], [330], [331], [332], [333], [336], [337], [338], [339] [2018-11-23 12:30:28,420 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 12:30:28,420 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 12:30:29,872 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 12:30:29,872 INFO L272 AbstractInterpreter]: Visited 135 different actions 904 times. Merged at 22 different actions 91 times. Never widened. Performed 33619 root evaluator evaluations with a maximum evaluation depth of 5. Performed 33619 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 15 fixpoints after 4 different actions. Largest state had 133 variables. [2018-11-23 12:30:29,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:30:29,873 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 12:30:29,873 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 12:30:29,874 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_62101250-6741-4643-89f2-59ba57baa791/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 [2018-11-23 12:30:29,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:30:29,883 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 12:30:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:30:29,961 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:30:30,011 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-11-23 12:30:30,012 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 12:30:30,198 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 43 proven. 10 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-23 12:30:30,214 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 12:30:30,214 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-11-23 12:30:30,214 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:30:30,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 12:30:30,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 12:30:30,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-23 12:30:30,215 INFO L87 Difference]: Start difference. First operand 1480 states and 1715 transitions. Second operand 6 states. [2018-11-23 12:30:30,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:30:30,248 INFO L93 Difference]: Finished difference Result 2016 states and 2339 transitions. [2018-11-23 12:30:30,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 12:30:30,248 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 229 [2018-11-23 12:30:30,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:30:30,249 INFO L225 Difference]: With dead ends: 2016 [2018-11-23 12:30:30,249 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 12:30:30,252 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 453 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-23 12:30:30,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 12:30:30,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 12:30:30,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 12:30:30,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 12:30:30,253 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 229 [2018-11-23 12:30:30,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:30:30,253 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 12:30:30,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 12:30:30,253 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 12:30:30,253 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:30:30,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 12:30:30,387 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,387 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,390 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,391 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,391 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,392 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,393 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,393 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,395 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,397 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,397 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,401 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,402 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,523 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,523 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,528 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,529 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,529 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,531 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,532 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,532 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,535 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,536 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,652 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,652 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,655 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,656 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,656 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,657 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,658 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,659 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,660 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,661 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,662 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,664 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,665 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,712 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,716 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,721 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,723 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,728 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,729 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,729 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,729 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,730 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,731 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,731 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,732 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,732 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,733 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,733 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,735 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,735 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,735 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,736 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:30,736 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 12:30:31,411 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 23 [2018-11-23 12:30:31,697 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2018-11-23 12:30:31,833 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 17 [2018-11-23 12:30:32,767 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 976 982) the Hoare annotation is: true [2018-11-23 12:30:32,767 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 976 982) no Hoare annotation was computed. [2018-11-23 12:30:32,767 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 983 991) no Hoare annotation was computed. [2018-11-23 12:30:32,767 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 983 991) the Hoare annotation is: true [2018-11-23 12:30:32,767 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 983 991) no Hoare annotation was computed. [2018-11-23 12:30:32,767 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 355 379) the Hoare annotation is: true [2018-11-23 12:30:32,768 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 355 379) no Hoare annotation was computed. [2018-11-23 12:30:32,768 INFO L444 ceAbstractionStarter]: At program point L369(line 369) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 ~pumpRunning~0)) (< ~waterLevel~0 1) .cse0) (or (< ~waterLevel~0 2) .cse0))) [2018-11-23 12:30:32,768 INFO L448 ceAbstractionStarter]: For program point L367(lines 367 373) no Hoare annotation was computed. [2018-11-23 12:30:32,768 INFO L444 ceAbstractionStarter]: At program point L365(line 365) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 ~pumpRunning~0)) (< ~waterLevel~0 1) .cse0) (or (< ~waterLevel~0 2) .cse0))) [2018-11-23 12:30:32,768 INFO L448 ceAbstractionStarter]: For program point L365-1(line 365) no Hoare annotation was computed. [2018-11-23 12:30:32,768 INFO L448 ceAbstractionStarter]: For program point L363(lines 363 376) no Hoare annotation was computed. [2018-11-23 12:30:32,768 INFO L448 ceAbstractionStarter]: For program point L363-1(lines 355 379) no Hoare annotation was computed. [2018-11-23 12:30:32,768 INFO L451 ceAbstractionStarter]: At program point L361(line 361) the Hoare annotation is: true [2018-11-23 12:30:32,768 INFO L448 ceAbstractionStarter]: For program point L361-1(line 361) no Hoare annotation was computed. [2018-11-23 12:30:32,768 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 456 478) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= ~systemActive~0 1) (< ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 12:30:32,768 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 456 478) no Hoare annotation was computed. [2018-11-23 12:30:32,768 INFO L444 ceAbstractionStarter]: At program point L468(line 468) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= main_~tmp~7 ~systemActive~0) (= ~systemActive~0 1) (< ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 12:30:32,769 INFO L444 ceAbstractionStarter]: At program point L468-1(line 468) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= main_~tmp~7 ~systemActive~0) (= ~systemActive~0 1) (< ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 12:30:32,769 INFO L448 ceAbstractionStarter]: For program point L466(lines 466 473) no Hoare annotation was computed. [2018-11-23 12:30:32,769 INFO L448 ceAbstractionStarter]: For program point L466-1(lines 466 473) no Hoare annotation was computed. [2018-11-23 12:30:32,769 INFO L448 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-11-23 12:30:32,769 INFO L444 ceAbstractionStarter]: At program point L463(line 463) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= ~systemActive~0 1) (< ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 12:30:32,769 INFO L444 ceAbstractionStarter]: At program point L462(line 462) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= ~systemActive~0 1) (< ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 12:30:32,769 INFO L444 ceAbstractionStarter]: At program point L462-1(line 462) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= ~systemActive~0 1) (< ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 12:30:32,769 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 456 478) no Hoare annotation was computed. [2018-11-23 12:30:32,769 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 261 269) no Hoare annotation was computed. [2018-11-23 12:30:32,769 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 261 269) the Hoare annotation is: true [2018-11-23 12:30:32,769 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 261 269) no Hoare annotation was computed. [2018-11-23 12:30:32,769 INFO L448 ceAbstractionStarter]: For program point L334(lines 334 338) no Hoare annotation was computed. [2018-11-23 12:30:32,769 INFO L451 ceAbstractionStarter]: At program point L332(line 332) the Hoare annotation is: true [2018-11-23 12:30:32,769 INFO L448 ceAbstractionStarter]: For program point L334-2(lines 334 338) no Hoare annotation was computed. [2018-11-23 12:30:32,770 INFO L448 ceAbstractionStarter]: For program point L332-1(line 332) no Hoare annotation was computed. [2018-11-23 12:30:32,770 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 325 343) the Hoare annotation is: true [2018-11-23 12:30:32,770 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 325 343) no Hoare annotation was computed. [2018-11-23 12:30:32,770 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 325 343) no Hoare annotation was computed. [2018-11-23 12:30:32,770 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 969 975) no Hoare annotation was computed. [2018-11-23 12:30:32,770 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 969 975) the Hoare annotation is: true [2018-11-23 12:30:32,770 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 443 452) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= ~systemActive~0 1) (< ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 12:30:32,770 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 443 452) no Hoare annotation was computed. [2018-11-23 12:30:32,770 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 443 452) no Hoare annotation was computed. [2018-11-23 12:30:32,770 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 250 260) the Hoare annotation is: true [2018-11-23 12:30:32,770 INFO L451 ceAbstractionStarter]: At program point L255(line 255) the Hoare annotation is: true [2018-11-23 12:30:32,770 INFO L448 ceAbstractionStarter]: For program point L255-1(line 255) no Hoare annotation was computed. [2018-11-23 12:30:32,770 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 250 260) no Hoare annotation was computed. [2018-11-23 12:30:32,770 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 250 260) no Hoare annotation was computed. [2018-11-23 12:30:32,770 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 242 249) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| 0) (not (= ~systemActive~0 1))) [2018-11-23 12:30:32,771 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 242 249) no Hoare annotation was computed. [2018-11-23 12:30:32,771 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 242 249) no Hoare annotation was computed. [2018-11-23 12:30:32,771 INFO L448 ceAbstractionStarter]: For program point L929(lines 929 935) no Hoare annotation was computed. [2018-11-23 12:30:32,771 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 925 938) no Hoare annotation was computed. [2018-11-23 12:30:32,771 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 925 938) the Hoare annotation is: true [2018-11-23 12:30:32,771 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 925 938) no Hoare annotation was computed. [2018-11-23 12:30:32,771 INFO L444 ceAbstractionStarter]: At program point L223(line 223) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (= ~methaneLevelCritical~0 0) .cse0 .cse1) (or .cse0 .cse1 (and (= processEnvironment_~tmp~3 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-23 12:30:32,771 INFO L444 ceAbstractionStarter]: At program point L219(line 219) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (and (= processEnvironment_~tmp~3 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse0 .cse1))) [2018-11-23 12:30:32,771 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 225) no Hoare annotation was computed. [2018-11-23 12:30:32,771 INFO L444 ceAbstractionStarter]: At program point L215(line 215) 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))) [2018-11-23 12:30:32,771 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 209 233) no Hoare annotation was computed. [2018-11-23 12:30:32,771 INFO L448 ceAbstractionStarter]: For program point L215-1(line 215) no Hoare annotation was computed. [2018-11-23 12:30:32,771 INFO L448 ceAbstractionStarter]: For program point L213(lines 213 230) no Hoare annotation was computed. [2018-11-23 12:30:32,772 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 209 233) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-23 12:30:32,772 INFO L444 ceAbstractionStarter]: At program point L228(line 228) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (= |old(~pumpRunning~0)| 0) .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1))) [2018-11-23 12:30:32,772 INFO L448 ceAbstractionStarter]: For program point L228-1(lines 209 233) no Hoare annotation was computed. [2018-11-23 12:30:32,772 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 149 155) no Hoare annotation was computed. [2018-11-23 12:30:32,772 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 149 155) the Hoare annotation is: true [2018-11-23 12:30:32,772 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 45 110) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= ~systemActive~0 1) (< ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 12:30:32,772 INFO L448 ceAbstractionStarter]: For program point L93(lines 93 97) no Hoare annotation was computed. [2018-11-23 12:30:32,772 INFO L444 ceAbstractionStarter]: At program point L93-2(lines 85 98) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 12:30:32,772 INFO L448 ceAbstractionStarter]: For program point L56(lines 55 102) no Hoare annotation was computed. [2018-11-23 12:30:32,772 INFO L444 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 12:30:32,772 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 45 110) no Hoare annotation was computed. [2018-11-23 12:30:32,772 INFO L448 ceAbstractionStarter]: For program point L85(lines 85 98) no Hoare annotation was computed. [2018-11-23 12:30:32,773 INFO L444 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 12:30:32,773 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 81) no Hoare annotation was computed. [2018-11-23 12:30:32,773 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2018-11-23 12:30:32,773 INFO L444 ceAbstractionStarter]: At program point L100(lines 55 102) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 12:30:32,773 INFO L444 ceAbstractionStarter]: At program point L67(line 67) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 12:30:32,773 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 71) no Hoare annotation was computed. [2018-11-23 12:30:32,773 INFO L448 ceAbstractionStarter]: For program point L65-1(lines 65 71) no Hoare annotation was computed. [2018-11-23 12:30:32,773 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 61) no Hoare annotation was computed. [2018-11-23 12:30:32,773 INFO L444 ceAbstractionStarter]: At program point L103(lines 54 104) 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))) [2018-11-23 12:30:32,773 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 45 110) no Hoare annotation was computed. [2018-11-23 12:30:32,773 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 939 947) no Hoare annotation was computed. [2018-11-23 12:30:32,773 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 939 947) the Hoare annotation is: true [2018-11-23 12:30:32,773 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 939 947) no Hoare annotation was computed. [2018-11-23 12:30:32,774 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 12:30:32,774 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)) [2018-11-23 12:30:32,774 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 12:30:32,774 INFO L448 ceAbstractionStarter]: For program point activatePumpFINAL(lines 234 241) no Hoare annotation was computed. [2018-11-23 12:30:32,774 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 234 241) no Hoare annotation was computed. [2018-11-23 12:30:32,774 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 234 241) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 2) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-23 12:30:32,774 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 916 924) the Hoare annotation is: true [2018-11-23 12:30:32,774 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 916 924) no Hoare annotation was computed. [2018-11-23 12:30:32,774 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 916 924) no Hoare annotation was computed. [2018-11-23 12:30:32,774 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 306 324) no Hoare annotation was computed. [2018-11-23 12:30:32,774 INFO L448 ceAbstractionStarter]: For program point L315(lines 315 319) no Hoare annotation was computed. [2018-11-23 12:30:32,774 INFO L451 ceAbstractionStarter]: At program point L313(line 313) the Hoare annotation is: true [2018-11-23 12:30:32,774 INFO L448 ceAbstractionStarter]: For program point L315-2(lines 315 319) no Hoare annotation was computed. [2018-11-23 12:30:32,774 INFO L448 ceAbstractionStarter]: For program point L313-1(line 313) no Hoare annotation was computed. [2018-11-23 12:30:32,774 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 306 324) the Hoare annotation is: true [2018-11-23 12:30:32,775 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 306 324) no Hoare annotation was computed. [2018-11-23 12:30:32,775 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 872 883) the Hoare annotation is: (let ((.cse0 (= |old(~methaneLevelCritical~0)| 0)) (.cse7 (not (= ~systemActive~0 1)))) (let ((.cse2 (or (< ~waterLevel~0 2) .cse7)) (.cse3 (= 0 ~methaneLevelCritical~0)) (.cse4 (not .cse0)) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= 0 ~pumpRunning~0))) (.cse6 (< ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse2) (or .cse3 .cse5 .cse6 .cse7 .cse4) (or .cse1 .cse5 .cse0 .cse6 .cse7)))) [2018-11-23 12:30:32,775 INFO L448 ceAbstractionStarter]: For program point L876-1(lines 872 883) no Hoare annotation was computed. [2018-11-23 12:30:32,775 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 872 883) no Hoare annotation was computed. [2018-11-23 12:30:32,775 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 884 892) the Hoare annotation is: true [2018-11-23 12:30:32,775 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 884 892) no Hoare annotation was computed. [2018-11-23 12:30:32,775 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 884 892) no Hoare annotation was computed. [2018-11-23 12:30:32,775 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 382 411) no Hoare annotation was computed. [2018-11-23 12:30:32,775 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 382 411) the Hoare annotation is: true [2018-11-23 12:30:32,775 INFO L451 ceAbstractionStarter]: At program point L407(lines 382 411) the Hoare annotation is: true [2018-11-23 12:30:32,775 INFO L448 ceAbstractionStarter]: For program point L403(line 403) no Hoare annotation was computed. [2018-11-23 12:30:32,775 INFO L448 ceAbstractionStarter]: For program point L396(lines 396 400) no Hoare annotation was computed. [2018-11-23 12:30:32,775 INFO L451 ceAbstractionStarter]: At program point L396-1(lines 396 400) the Hoare annotation is: true [2018-11-23 12:30:32,775 INFO L448 ceAbstractionStarter]: For program point L393(line 393) no Hoare annotation was computed. [2018-11-23 12:30:32,776 INFO L451 ceAbstractionStarter]: At program point L392-2(lines 392 406) the Hoare annotation is: true [2018-11-23 12:30:32,776 INFO L451 ceAbstractionStarter]: At program point L388(line 388) the Hoare annotation is: true [2018-11-23 12:30:32,776 INFO L448 ceAbstractionStarter]: For program point L388-1(line 388) no Hoare annotation was computed. [2018-11-23 12:30:32,776 INFO L448 ceAbstractionStarter]: For program point L129(lines 128 147) no Hoare annotation was computed. [2018-11-23 12:30:32,776 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 125 148) the Hoare annotation is: (let ((.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (or (< |old(~waterLevel~0)| 2) .cse1)) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse1))) [2018-11-23 12:30:32,776 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 125 148) no Hoare annotation was computed. [2018-11-23 12:30:32,776 INFO L444 ceAbstractionStarter]: At program point L138(line 138) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse0) (or (< |old(~waterLevel~0)| 2) .cse1)) (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse1))) [2018-11-23 12:30:32,776 INFO L444 ceAbstractionStarter]: At program point L136(lines 136 142) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (<= 2 |old(~waterLevel~0)|) (not (= 0 |old(~pumpRunning~0)|)) (and (< ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (< |old(~waterLevel~0)| 1) .cse0) (or (and (not (= |old(~pumpRunning~0)| 0)) (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (= ~waterLevel~0 |old(~waterLevel~0)|) (or (< |old(~waterLevel~0)| 2) .cse0)))) [2018-11-23 12:30:32,776 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 125 148) no Hoare annotation was computed. [2018-11-23 12:30:32,776 INFO L444 ceAbstractionStarter]: At program point L131(line 131) the Hoare annotation is: (let ((.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 (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse0))) [2018-11-23 12:30:32,776 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 848 859) the Hoare annotation is: (or (= ~waterLevel~0 |old(~waterLevel~0)|) (or (= ~pumpRunning~0 0) (not (= ~systemActive~0 1))) (< |old(~waterLevel~0)| 2)) [2018-11-23 12:30:32,778 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 848 859) no Hoare annotation was computed. [2018-11-23 12:30:32,778 INFO L448 ceAbstractionStarter]: For program point L852-1(lines 848 859) no Hoare annotation was computed. [2018-11-23 12:30:32,778 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 436 442) no Hoare annotation was computed. [2018-11-23 12:30:32,778 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 436 442) the Hoare annotation is: true [2018-11-23 12:30:32,779 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 12:30:32,779 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) (= ~systemActive~0 1) (< ~waterLevel~0 2)) [2018-11-23 12:30:32,779 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 12:30:32,779 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 12:30:32,779 INFO L448 ceAbstractionStarter]: For program point L161(lines 161 178) no Hoare annotation was computed. [2018-11-23 12:30:32,779 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 157 181) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-23 12:30:32,779 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 157 181) no Hoare annotation was computed. [2018-11-23 12:30:32,779 INFO L444 ceAbstractionStarter]: At program point L176(line 176) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-23 12:30:32,779 INFO L448 ceAbstractionStarter]: For program point L176-1(lines 157 181) no Hoare annotation was computed. [2018-11-23 12:30:32,779 INFO L444 ceAbstractionStarter]: At program point L171(line 171) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-23 12:30:32,779 INFO L444 ceAbstractionStarter]: At program point L167(line 167) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (<= 2 ~waterLevel~0) .cse0 (< ~waterLevel~0 1) .cse1) (or (or .cse0 .cse1) (< ~waterLevel~0 2) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) [2018-11-23 12:30:32,779 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 173) no Hoare annotation was computed. [2018-11-23 12:30:32,779 INFO L444 ceAbstractionStarter]: At program point L163(line 163) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-23 12:30:32,780 INFO L448 ceAbstractionStarter]: For program point L163-1(line 163) no Hoare annotation was computed. [2018-11-23 12:30:32,780 INFO L448 ceAbstractionStarter]: For program point startSystemEXIT(lines 344 351) no Hoare annotation was computed. [2018-11-23 12:30:32,780 INFO L444 ceAbstractionStarter]: At program point startSystemENTRY(lines 344 351) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (not (= |old(~systemActive~0)| 1)))) (and (or .cse0 (or (< ~waterLevel~0 2) .cse1)) (or .cse0 (not (= 0 ~pumpRunning~0)) (< ~waterLevel~0 1) .cse1))) [2018-11-23 12:30:32,780 INFO L448 ceAbstractionStarter]: For program point startSystemFINAL(lines 344 351) no Hoare annotation was computed. [2018-11-23 12:30:32,780 INFO L448 ceAbstractionStarter]: For program point L864-1(lines 860 871) no Hoare annotation was computed. [2018-11-23 12:30:32,780 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 860 871) no Hoare annotation was computed. [2018-11-23 12:30:32,780 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 860 871) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (and (< ~waterLevel~0 2) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 ~pumpRunning~0)) .cse0 (not (= |old(~waterLevel~0)| 1))) (or .cse0 (< |old(~waterLevel~0)| 2) (= ~waterLevel~0 |old(~waterLevel~0)|)))) [2018-11-23 12:30:32,780 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 949 956) no Hoare annotation was computed. [2018-11-23 12:30:32,780 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 953) no Hoare annotation was computed. [2018-11-23 12:30:32,780 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 949 956) the Hoare annotation is: true [2018-11-23 12:30:32,780 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 949 956) no Hoare annotation was computed. [2018-11-23 12:30:32,780 INFO L444 ceAbstractionStarter]: At program point L193(line 193) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (and (<= 1 processEnvironment__wrappee__lowWaterSensor_~tmp~2) (= |old(~pumpRunning~0)| ~pumpRunning~0))))) [2018-11-23 12:30:32,781 INFO L448 ceAbstractionStarter]: For program point L191(lines 191 199) no Hoare annotation was computed. [2018-11-23 12:30:32,781 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 183 207) no Hoare annotation was computed. [2018-11-23 12:30:32,781 INFO L444 ceAbstractionStarter]: At program point L189(line 189) 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 (not (= ~methaneLevelCritical~0 0))))) [2018-11-23 12:30:32,781 INFO L448 ceAbstractionStarter]: For program point L189-1(line 189) no Hoare annotation was computed. [2018-11-23 12:30:32,781 INFO L448 ceAbstractionStarter]: For program point L187(lines 187 204) no Hoare annotation was computed. [2018-11-23 12:30:32,781 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 183 207) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-11-23 12:30:32,781 INFO L444 ceAbstractionStarter]: At program point L202(line 202) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 (= |old(~pumpRunning~0)| 0) .cse1 (not (= ~methaneLevelCritical~0 0))))) [2018-11-23 12:30:32,781 INFO L448 ceAbstractionStarter]: For program point L202-1(lines 183 207) no Hoare annotation was computed. [2018-11-23 12:30:32,781 INFO L444 ceAbstractionStarter]: At program point L197(line 197) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-23 12:30:32,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:30:32 BoogieIcfgContainer [2018-11-23 12:30:32,797 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 12:30:32,797 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 12:30:32,797 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 12:30:32,797 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 12:30:32,798 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:30:16" (3/4) ... [2018-11-23 12:30:32,801 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 12:30:32,805 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-23 12:30:32,805 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-23 12:30:32,805 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-23 12:30:32,806 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 12:30:32,806 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-23 12:30:32,806 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-23 12:30:32,806 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-23 12:30:32,806 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-23 12:30:32,806 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-23 12:30:32,806 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-23 12:30:32,806 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-23 12:30:32,806 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-23 12:30:32,806 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-23 12:30:32,806 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-23 12:30:32,806 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-23 12:30:32,806 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 12:30:32,806 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-23 12:30:32,807 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-23 12:30:32,807 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-23 12:30:32,807 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-23 12:30:32,807 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-23 12:30:32,807 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-23 12:30:32,807 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-23 12:30:32,807 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-23 12:30:32,807 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-23 12:30:32,807 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 12:30:32,807 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-11-23 12:30:32,808 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-23 12:30:32,808 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-23 12:30:32,808 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2018-11-23 12:30:32,814 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-11-23 12:30:32,814 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-23 12:30:32,814 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-23 12:30:32,815 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 12:30:32,815 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 12:30:32,815 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 12:30:32,816 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 12:30:32,836 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(0 == \old(pumpRunning)) || ((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0)) || (((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-23 12:30:32,837 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-23 12:30:32,870 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_62101250-6741-4643-89f2-59ba57baa791/bin-2019/utaipan/witness.graphml [2018-11-23 12:30:32,870 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 12:30:32,870 INFO L168 Benchmark]: Toolchain (without parser) took 16902.68 ms. Allocated memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: 1.0 GB). Free memory was 955.5 MB in the beginning and 784.5 MB in the end (delta: 171.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-11-23 12:30:32,871 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:30:32,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-11-23 12:30:32,871 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 12:30:32,871 INFO L168 Benchmark]: Boogie Preprocessor took 31.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:30:32,872 INFO L168 Benchmark]: RCFGBuilder took 503.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.2 MB). Peak memory consumption was 57.2 MB. Max. memory is 11.5 GB. [2018-11-23 12:30:32,872 INFO L168 Benchmark]: TraceAbstraction took 15912.90 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 882.4 MB). Free memory was 1.1 GB in the beginning and 800.7 MB in the end (delta: 274.2 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-11-23 12:30:32,872 INFO L168 Benchmark]: Witness Printer took 72.51 ms. Allocated memory is still 2.1 GB. Free memory was 800.7 MB in the beginning and 784.5 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. [2018-11-23 12:30:32,873 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 353.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 503.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.2 MB). Peak memory consumption was 57.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15912.90 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 882.4 MB). Free memory was 1.1 GB in the beginning and 800.7 MB in the end (delta: 274.2 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. * Witness Printer took 72.51 ms. Allocated memory is still 2.1 GB. Free memory was 800.7 MB in the beginning and 784.5 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 953]: 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: 392]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 382]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: ((((!(0 == \old(pumpRunning)) || ((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0)) || (((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 163 locations, 1 error locations. SAFE Result, 15.8s OverallTime, 12 OverallIterations, 3 TraceHistogramMax, 4.1s AutomataDifference, 0.0s DeadEndRemovalTime, 2.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 2340 SDtfs, 2596 SDslu, 6046 SDs, 0 SdLazy, 4899 SolverSat, 1310 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1749 GetRequests, 1591 SyntacticMatches, 23 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1480occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.6s AbstIntTime, 5 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 413 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 68 LocationsWithAnnotation, 2981 PreInvPairs, 3079 NumberOfFragments, 1334 HoareAnnotationTreeSize, 2981 FomulaSimplifications, 7345 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 68 FomulaSimplificationsInter, 12919 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 2159 NumberOfCodeBlocks, 2159 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2928 ConstructedInterpolants, 0 QuantifiedInterpolants, 606551 SizeOfPredicates, 21 NumberOfNonLiveVariables, 4429 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 22 InterpolantComputations, 11 PerfectInterpolantSequences, 723/782 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...