./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product61_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5cba814e-6265-4345-86f4-42c6e5a331c1/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5cba814e-6265-4345-86f4-42c6e5a331c1/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5cba814e-6265-4345-86f4-42c6e5a331c1/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5cba814e-6265-4345-86f4-42c6e5a331c1/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product61_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5cba814e-6265-4345-86f4-42c6e5a331c1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5cba814e-6265-4345-86f4-42c6e5a331c1/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0997f7b4913388226e163b59383b8166cd33b05b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 09:50:04,445 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 09:50:04,446 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 09:50:04,453 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 09:50:04,453 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 09:50:04,454 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 09:50:04,454 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 09:50:04,456 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 09:50:04,457 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 09:50:04,458 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 09:50:04,458 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 09:50:04,458 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 09:50:04,459 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 09:50:04,460 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 09:50:04,460 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 09:50:04,461 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 09:50:04,461 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 09:50:04,462 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 09:50:04,463 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 09:50:04,464 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 09:50:04,465 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 09:50:04,466 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 09:50:04,468 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 09:50:04,468 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 09:50:04,468 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 09:50:04,469 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 09:50:04,470 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 09:50:04,470 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 09:50:04,470 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 09:50:04,471 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 09:50:04,471 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 09:50:04,471 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 09:50:04,472 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 09:50:04,472 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 09:50:04,472 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 09:50:04,473 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 09:50:04,473 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5cba814e-6265-4345-86f4-42c6e5a331c1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 09:50:04,483 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 09:50:04,483 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 09:50:04,484 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 09:50:04,484 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 09:50:04,484 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 09:50:04,484 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 09:50:04,484 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 09:50:04,484 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 09:50:04,484 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 09:50:04,484 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 09:50:04,484 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 09:50:04,484 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 09:50:04,484 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 09:50:04,485 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 09:50:04,485 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 09:50:04,485 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 09:50:04,485 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 09:50:04,485 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 09:50:04,485 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 09:50:04,485 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 09:50:04,485 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 09:50:04,485 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 09:50:04,485 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 09:50:04,485 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 09:50:04,486 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 09:50:04,486 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 09:50:04,486 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 09:50:04,486 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 09:50:04,486 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 09:50:04,486 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 09:50:04,486 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 09:50:04,486 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 09:50:04,486 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 09:50:04,486 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 09:50:04,486 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 09:50:04,486 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 09:50:04,486 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 09:50:04,487 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_5cba814e-6265-4345-86f4-42c6e5a331c1/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0997f7b4913388226e163b59383b8166cd33b05b [2018-11-23 09:50:04,509 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 09:50:04,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 09:50:04,521 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 09:50:04,522 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 09:50:04,522 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 09:50:04,522 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5cba814e-6265-4345-86f4-42c6e5a331c1/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product61_true-unreach-call_false-termination.cil.c [2018-11-23 09:50:04,559 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5cba814e-6265-4345-86f4-42c6e5a331c1/bin-2019/utaipan/data/49df9f6f6/fe4c126de0364e399a164112835a2027/FLAG65960adc7 [2018-11-23 09:50:04,989 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 09:50:04,990 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5cba814e-6265-4345-86f4-42c6e5a331c1/sv-benchmarks/c/product-lines/minepump_spec3_product61_true-unreach-call_false-termination.cil.c [2018-11-23 09:50:04,997 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5cba814e-6265-4345-86f4-42c6e5a331c1/bin-2019/utaipan/data/49df9f6f6/fe4c126de0364e399a164112835a2027/FLAG65960adc7 [2018-11-23 09:50:05,008 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5cba814e-6265-4345-86f4-42c6e5a331c1/bin-2019/utaipan/data/49df9f6f6/fe4c126de0364e399a164112835a2027 [2018-11-23 09:50:05,010 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 09:50:05,011 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 09:50:05,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 09:50:05,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 09:50:05,014 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 09:50:05,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:50:05" (1/1) ... [2018-11-23 09:50:05,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ff9ad9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:50:05, skipping insertion in model container [2018-11-23 09:50:05,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:50:05" (1/1) ... [2018-11-23 09:50:05,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 09:50:05,051 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 09:50:05,243 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 09:50:05,252 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 09:50:05,371 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 09:50:05,394 INFO L195 MainTranslator]: Completed translation [2018-11-23 09:50:05,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:50:05 WrapperNode [2018-11-23 09:50:05,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 09:50:05,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 09:50:05,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 09:50:05,395 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 09:50:05,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:50:05" (1/1) ... [2018-11-23 09:50:05,414 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:50:05" (1/1) ... [2018-11-23 09:50:05,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 09:50:05,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 09:50:05,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 09:50:05,420 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 09:50:05,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:50:05" (1/1) ... [2018-11-23 09:50:05,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:50:05" (1/1) ... [2018-11-23 09:50:05,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:50:05" (1/1) ... [2018-11-23 09:50:05,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:50:05" (1/1) ... [2018-11-23 09:50:05,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:50:05" (1/1) ... [2018-11-23 09:50:05,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:50:05" (1/1) ... [2018-11-23 09:50:05,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:50:05" (1/1) ... [2018-11-23 09:50:05,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 09:50:05,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 09:50:05,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 09:50:05,446 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 09:50:05,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:50:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5cba814e-6265-4345-86f4-42c6e5a331c1/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 09:50:05,489 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-23 09:50:05,489 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-23 09:50:05,489 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 09:50:05,489 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 09:50:05,489 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-23 09:50:05,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-23 09:50:05,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 09:50:05,489 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-23 09:50:05,490 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-23 09:50:05,490 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-23 09:50:05,490 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-23 09:50:05,490 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-23 09:50:05,490 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-23 09:50:05,490 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-23 09:50:05,490 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-23 09:50:05,490 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-23 09:50:05,490 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-23 09:50:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-11-23 09:50:05,491 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-11-23 09:50:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-23 09:50:05,491 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-23 09:50:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-23 09:50:05,491 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-23 09:50:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-23 09:50:05,491 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-23 09:50:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-23 09:50:05,491 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-23 09:50:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-23 09:50:05,492 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-23 09:50:05,492 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-23 09:50:05,492 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-23 09:50:05,492 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-23 09:50:05,492 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-23 09:50:05,492 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-23 09:50:05,492 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-23 09:50:05,492 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 09:50:05,492 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 09:50:05,493 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-23 09:50:05,493 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-23 09:50:05,493 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-23 09:50:05,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-23 09:50:05,493 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-23 09:50:05,493 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-23 09:50:05,493 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-11-23 09:50:05,493 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-11-23 09:50:05,494 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-23 09:50:05,494 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-23 09:50:05,494 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-23 09:50:05,494 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-23 09:50:05,494 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-23 09:50:05,494 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-23 09:50:05,494 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-23 09:50:05,494 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-23 09:50:05,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 09:50:05,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 09:50:05,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 09:50:05,495 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-23 09:50:05,495 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-23 09:50:05,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2018-11-23 09:50:05,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2018-11-23 09:50:05,495 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-23 09:50:05,495 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-23 09:50:05,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 09:50:05,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 09:50:05,980 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 09:50:05,980 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 09:50:05,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:50:05 BoogieIcfgContainer [2018-11-23 09:50:05,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 09:50:05,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 09:50:05,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 09:50:05,983 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 09:50:05,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:50:05" (1/3) ... [2018-11-23 09:50:05,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f31cbea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:50:05, skipping insertion in model container [2018-11-23 09:50:05,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:50:05" (2/3) ... [2018-11-23 09:50:05,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f31cbea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:50:05, skipping insertion in model container [2018-11-23 09:50:05,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:50:05" (3/3) ... [2018-11-23 09:50:05,986 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product61_true-unreach-call_false-termination.cil.c [2018-11-23 09:50:05,994 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 09:50:06,000 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 09:50:06,012 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 09:50:06,038 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 09:50:06,038 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 09:50:06,039 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 09:50:06,039 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 09:50:06,039 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 09:50:06,039 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 09:50:06,039 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 09:50:06,039 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 09:50:06,055 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2018-11-23 09:50:06,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-23 09:50:06,063 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:50:06,064 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 09:50:06,065 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:50:06,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:06,069 INFO L82 PathProgramCache]: Analyzing trace with hash 882480942, now seen corresponding path program 1 times [2018-11-23 09:50:06,070 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:50:06,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:06,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:50:06,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:06,102 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:50:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:50:06,256 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 09:50:06,258 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:50:06,259 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 09:50:06,259 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:50:06,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 09:50:06,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 09:50:06,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 09:50:06,277 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 2 states. [2018-11-23 09:50:06,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:50:06,305 INFO L93 Difference]: Finished difference Result 312 states and 389 transitions. [2018-11-23 09:50:06,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 09:50:06,306 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2018-11-23 09:50:06,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:50:06,314 INFO L225 Difference]: With dead ends: 312 [2018-11-23 09:50:06,315 INFO L226 Difference]: Without dead ends: 156 [2018-11-23 09:50:06,317 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 09:50:06,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2018-11-23 09:50:06,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2018-11-23 09:50:06,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-11-23 09:50:06,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 186 transitions. [2018-11-23 09:50:06,349 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 186 transitions. Word has length 52 [2018-11-23 09:50:06,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:50:06,349 INFO L480 AbstractCegarLoop]: Abstraction has 156 states and 186 transitions. [2018-11-23 09:50:06,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 09:50:06,350 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 186 transitions. [2018-11-23 09:50:06,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-23 09:50:06,351 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:50:06,352 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] [2018-11-23 09:50:06,352 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:50:06,352 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:06,352 INFO L82 PathProgramCache]: Analyzing trace with hash 252497204, now seen corresponding path program 1 times [2018-11-23 09:50:06,352 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:50:06,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:06,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:50:06,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:06,353 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:50:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:50:06,425 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 09:50:06,426 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:50:06,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 09:50:06,426 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:50:06,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 09:50:06,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 09:50:06,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:50:06,428 INFO L87 Difference]: Start difference. First operand 156 states and 186 transitions. Second operand 3 states. [2018-11-23 09:50:06,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:50:06,450 INFO L93 Difference]: Finished difference Result 261 states and 311 transitions. [2018-11-23 09:50:06,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 09:50:06,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2018-11-23 09:50:06,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:50:06,452 INFO L225 Difference]: With dead ends: 261 [2018-11-23 09:50:06,452 INFO L226 Difference]: Without dead ends: 147 [2018-11-23 09:50:06,453 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 09:50:06,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-11-23 09:50:06,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2018-11-23 09:50:06,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-11-23 09:50:06,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 174 transitions. [2018-11-23 09:50:06,466 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 174 transitions. Word has length 53 [2018-11-23 09:50:06,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:50:06,466 INFO L480 AbstractCegarLoop]: Abstraction has 147 states and 174 transitions. [2018-11-23 09:50:06,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 09:50:06,466 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 174 transitions. [2018-11-23 09:50:06,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-23 09:50:06,468 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:50:06,468 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:50:06,468 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:50:06,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:06,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1976679861, now seen corresponding path program 1 times [2018-11-23 09:50:06,469 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:50:06,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:06,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:50:06,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:06,470 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:50:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:50:06,572 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 09:50:06,572 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:50:06,572 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 09:50:06,572 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:50:06,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 09:50:06,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 09:50:06,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-23 09:50:06,573 INFO L87 Difference]: Start difference. First operand 147 states and 174 transitions. Second operand 7 states. [2018-11-23 09:50:06,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:50:06,786 INFO L93 Difference]: Finished difference Result 270 states and 325 transitions. [2018-11-23 09:50:06,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 09:50:06,786 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2018-11-23 09:50:06,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:50:06,787 INFO L225 Difference]: With dead ends: 270 [2018-11-23 09:50:06,787 INFO L226 Difference]: Without dead ends: 147 [2018-11-23 09:50:06,788 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 09:50:06,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-11-23 09:50:06,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2018-11-23 09:50:06,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-11-23 09:50:06,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 173 transitions. [2018-11-23 09:50:06,801 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 173 transitions. Word has length 57 [2018-11-23 09:50:06,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:50:06,802 INFO L480 AbstractCegarLoop]: Abstraction has 147 states and 173 transitions. [2018-11-23 09:50:06,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 09:50:06,802 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 173 transitions. [2018-11-23 09:50:06,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-11-23 09:50:06,804 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:50:06,804 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] [2018-11-23 09:50:06,804 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:50:06,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:06,804 INFO L82 PathProgramCache]: Analyzing trace with hash -468269602, now seen corresponding path program 1 times [2018-11-23 09:50:06,805 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:50:06,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:06,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:50:06,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:06,806 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:50:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:50:06,887 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 09:50:06,887 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:50:06,887 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 09:50:06,887 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:50:06,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 09:50:06,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 09:50:06,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 09:50:06,888 INFO L87 Difference]: Start difference. First operand 147 states and 173 transitions. Second operand 5 states. [2018-11-23 09:50:07,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:50:07,239 INFO L93 Difference]: Finished difference Result 391 states and 474 transitions. [2018-11-23 09:50:07,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 09:50:07,239 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2018-11-23 09:50:07,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:50:07,241 INFO L225 Difference]: With dead ends: 391 [2018-11-23 09:50:07,241 INFO L226 Difference]: Without dead ends: 268 [2018-11-23 09:50:07,242 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 09:50:07,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2018-11-23 09:50:07,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 250. [2018-11-23 09:50:07,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2018-11-23 09:50:07,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 285 transitions. [2018-11-23 09:50:07,264 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 285 transitions. Word has length 75 [2018-11-23 09:50:07,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:50:07,264 INFO L480 AbstractCegarLoop]: Abstraction has 250 states and 285 transitions. [2018-11-23 09:50:07,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 09:50:07,265 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 285 transitions. [2018-11-23 09:50:07,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-11-23 09:50:07,266 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:50:07,266 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, 1, 1, 1, 1, 1] [2018-11-23 09:50:07,266 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:50:07,266 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:07,267 INFO L82 PathProgramCache]: Analyzing trace with hash -579229414, now seen corresponding path program 1 times [2018-11-23 09:50:07,267 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:50:07,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:07,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:50:07,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:07,268 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:50:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:50:07,346 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 09:50:07,347 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:50:07,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 09:50:07,347 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:50:07,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 09:50:07,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 09:50:07,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 09:50:07,348 INFO L87 Difference]: Start difference. First operand 250 states and 285 transitions. Second operand 6 states. [2018-11-23 09:50:07,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:50:07,468 INFO L93 Difference]: Finished difference Result 609 states and 728 transitions. [2018-11-23 09:50:07,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 09:50:07,469 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2018-11-23 09:50:07,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:50:07,471 INFO L225 Difference]: With dead ends: 609 [2018-11-23 09:50:07,472 INFO L226 Difference]: Without dead ends: 383 [2018-11-23 09:50:07,472 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 09:50:07,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-11-23 09:50:07,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 379. [2018-11-23 09:50:07,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2018-11-23 09:50:07,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 438 transitions. [2018-11-23 09:50:07,496 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 438 transitions. Word has length 89 [2018-11-23 09:50:07,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:50:07,496 INFO L480 AbstractCegarLoop]: Abstraction has 379 states and 438 transitions. [2018-11-23 09:50:07,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 09:50:07,496 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 438 transitions. [2018-11-23 09:50:07,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-11-23 09:50:07,497 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:50:07,498 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:50:07,498 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:50:07,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:07,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1675140960, now seen corresponding path program 1 times [2018-11-23 09:50:07,498 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:50:07,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:07,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:50:07,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:07,499 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:50:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:50:07,613 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 09:50:07,613 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:50:07,613 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 09:50:07,613 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:50:07,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 09:50:07,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 09:50:07,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 09:50:07,614 INFO L87 Difference]: Start difference. First operand 379 states and 438 transitions. Second operand 6 states. [2018-11-23 09:50:07,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:50:07,813 INFO L93 Difference]: Finished difference Result 826 states and 991 transitions. [2018-11-23 09:50:07,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 09:50:07,815 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2018-11-23 09:50:07,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:50:07,818 INFO L225 Difference]: With dead ends: 826 [2018-11-23 09:50:07,818 INFO L226 Difference]: Without dead ends: 600 [2018-11-23 09:50:07,819 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 09:50:07,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2018-11-23 09:50:07,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 582. [2018-11-23 09:50:07,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2018-11-23 09:50:07,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 688 transitions. [2018-11-23 09:50:07,849 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 688 transitions. Word has length 93 [2018-11-23 09:50:07,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:50:07,850 INFO L480 AbstractCegarLoop]: Abstraction has 582 states and 688 transitions. [2018-11-23 09:50:07,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 09:50:07,850 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 688 transitions. [2018-11-23 09:50:07,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-11-23 09:50:07,851 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:50:07,851 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:50:07,852 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:50:07,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:07,852 INFO L82 PathProgramCache]: Analyzing trace with hash 684166049, now seen corresponding path program 1 times [2018-11-23 09:50:07,852 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:50:07,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:07,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:50:07,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:07,853 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:50:07,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:50:07,912 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 09:50:07,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:50:07,912 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 09:50:07,913 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:50:07,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 09:50:07,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 09:50:07,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 09:50:07,913 INFO L87 Difference]: Start difference. First operand 582 states and 688 transitions. Second operand 5 states. [2018-11-23 09:50:07,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:50:07,939 INFO L93 Difference]: Finished difference Result 1021 states and 1233 transitions. [2018-11-23 09:50:07,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 09:50:07,940 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2018-11-23 09:50:07,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:50:07,942 INFO L225 Difference]: With dead ends: 1021 [2018-11-23 09:50:07,942 INFO L226 Difference]: Without dead ends: 592 [2018-11-23 09:50:07,943 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 09:50:07,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2018-11-23 09:50:07,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 586. [2018-11-23 09:50:07,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2018-11-23 09:50:07,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 691 transitions. [2018-11-23 09:50:07,967 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 691 transitions. Word has length 93 [2018-11-23 09:50:07,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:50:07,967 INFO L480 AbstractCegarLoop]: Abstraction has 586 states and 691 transitions. [2018-11-23 09:50:07,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 09:50:07,967 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 691 transitions. [2018-11-23 09:50:07,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-11-23 09:50:07,969 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:50:07,969 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:50:07,969 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:50:07,969 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:07,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1343697571, now seen corresponding path program 1 times [2018-11-23 09:50:07,969 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:50:07,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:07,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:50:07,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:07,970 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:50:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:50:08,043 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 09:50:08,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:50:08,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-23 09:50:08,044 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:50:08,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 09:50:08,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 09:50:08,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-23 09:50:08,044 INFO L87 Difference]: Start difference. First operand 586 states and 691 transitions. Second operand 9 states. [2018-11-23 09:50:08,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:50:08,084 INFO L93 Difference]: Finished difference Result 1165 states and 1404 transitions. [2018-11-23 09:50:08,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 09:50:08,085 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2018-11-23 09:50:08,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:50:08,087 INFO L225 Difference]: With dead ends: 1165 [2018-11-23 09:50:08,087 INFO L226 Difference]: Without dead ends: 603 [2018-11-23 09:50:08,088 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-11-23 09:50:08,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2018-11-23 09:50:08,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 593. [2018-11-23 09:50:08,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2018-11-23 09:50:08,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 698 transitions. [2018-11-23 09:50:08,108 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 698 transitions. Word has length 93 [2018-11-23 09:50:08,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:50:08,108 INFO L480 AbstractCegarLoop]: Abstraction has 593 states and 698 transitions. [2018-11-23 09:50:08,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 09:50:08,108 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 698 transitions. [2018-11-23 09:50:08,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-11-23 09:50:08,110 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:50:08,110 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:50:08,110 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:50:08,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:08,110 INFO L82 PathProgramCache]: Analyzing trace with hash -677811644, now seen corresponding path program 1 times [2018-11-23 09:50:08,111 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:50:08,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:08,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:50:08,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:08,111 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:50:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:50:08,210 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 09:50:08,211 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 09:50:08,211 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 09:50:08,212 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 106 with the following transitions: [2018-11-23 09:50:08,213 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [33], [36], [37], [38], [50], [53], [55], [56], [59], [63], [64], [65], [80], [83], [85], [94], [98], [102], [105], [110], [116], [118], [121], [140], [141], [142], [144], [147], [152], [153], [154], [155], [157], [162], [164], [165], [173], [174], [206], [210], [217], [219], [224], [226], [229], [231], [236], [250], [254], [257], [259], [262], [272], [275], [279], [280], [283], [284], [285], [286], [287], [288], [289], [290], [291], [299], [300], [303], [305], [306], [313], [314], [315], [316], [319], [323], [324], [327], [328], [335], [336], [337], [339], [340], [341], [342], [343], [344], [345], [347], [348], [349], [351], [352], [353], [354] [2018-11-23 09:50:08,238 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 09:50:08,238 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 09:50:08,544 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 09:50:08,545 INFO L272 AbstractInterpreter]: Visited 75 different actions 75 times. Never merged. Never widened. Performed 2591 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2591 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-23 09:50:08,559 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:08,560 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 09:50:08,741 INFO L227 lantSequenceWeakener]: Weakened 73 states. On average, predicates are now at 96.7% of their original sizes. [2018-11-23 09:50:08,741 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 09:50:08,845 INFO L415 sIntCurrentIteration]: We unified 104 AI predicates to 104 [2018-11-23 09:50:08,845 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 09:50:08,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 09:50:08,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [9] total 25 [2018-11-23 09:50:08,846 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:50:08,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-23 09:50:08,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-23 09:50:08,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2018-11-23 09:50:08,847 INFO L87 Difference]: Start difference. First operand 593 states and 698 transitions. Second operand 18 states. [2018-11-23 09:50:11,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:50:11,458 INFO L93 Difference]: Finished difference Result 1297 states and 1555 transitions. [2018-11-23 09:50:11,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-23 09:50:11,458 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 105 [2018-11-23 09:50:11,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:50:11,462 INFO L225 Difference]: With dead ends: 1297 [2018-11-23 09:50:11,462 INFO L226 Difference]: Without dead ends: 728 [2018-11-23 09:50:11,464 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 113 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2018-11-23 09:50:11,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2018-11-23 09:50:11,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 724. [2018-11-23 09:50:11,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2018-11-23 09:50:11,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 853 transitions. [2018-11-23 09:50:11,495 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 853 transitions. Word has length 105 [2018-11-23 09:50:11,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:50:11,496 INFO L480 AbstractCegarLoop]: Abstraction has 724 states and 853 transitions. [2018-11-23 09:50:11,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-23 09:50:11,496 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 853 transitions. [2018-11-23 09:50:11,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-11-23 09:50:11,498 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:50:11,498 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:50:11,498 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:50:11,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:11,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1323157912, now seen corresponding path program 1 times [2018-11-23 09:50:11,499 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:50:11,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:11,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:50:11,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:11,500 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:50:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:50:11,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 09:50:11,615 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:50:11,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-23 09:50:11,615 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:50:11,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 09:50:11,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 09:50:11,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-23 09:50:11,616 INFO L87 Difference]: Start difference. First operand 724 states and 853 transitions. Second operand 10 states. [2018-11-23 09:50:11,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:50:11,830 INFO L93 Difference]: Finished difference Result 1811 states and 2195 transitions. [2018-11-23 09:50:11,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 09:50:11,830 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 109 [2018-11-23 09:50:11,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:50:11,836 INFO L225 Difference]: With dead ends: 1811 [2018-11-23 09:50:11,836 INFO L226 Difference]: Without dead ends: 1242 [2018-11-23 09:50:11,838 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-23 09:50:11,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2018-11-23 09:50:11,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1224. [2018-11-23 09:50:11,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1224 states. [2018-11-23 09:50:11,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1445 transitions. [2018-11-23 09:50:11,922 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1445 transitions. Word has length 109 [2018-11-23 09:50:11,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:50:11,922 INFO L480 AbstractCegarLoop]: Abstraction has 1224 states and 1445 transitions. [2018-11-23 09:50:11,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 09:50:11,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1445 transitions. [2018-11-23 09:50:11,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-11-23 09:50:11,924 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:50:11,924 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:50:11,925 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:50:11,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:11,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1441456966, now seen corresponding path program 1 times [2018-11-23 09:50:11,925 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:50:11,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:11,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:50:11,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:11,926 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:50:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:50:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 09:50:12,029 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:50:12,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-23 09:50:12,029 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:50:12,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 09:50:12,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 09:50:12,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-23 09:50:12,030 INFO L87 Difference]: Start difference. First operand 1224 states and 1445 transitions. Second operand 10 states. [2018-11-23 09:50:12,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:50:12,240 INFO L93 Difference]: Finished difference Result 2299 states and 2718 transitions. [2018-11-23 09:50:12,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 09:50:12,241 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 109 [2018-11-23 09:50:12,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:50:12,245 INFO L225 Difference]: With dead ends: 2299 [2018-11-23 09:50:12,245 INFO L226 Difference]: Without dead ends: 1230 [2018-11-23 09:50:12,248 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-23 09:50:12,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2018-11-23 09:50:12,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1202. [2018-11-23 09:50:12,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1202 states. [2018-11-23 09:50:12,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1383 transitions. [2018-11-23 09:50:12,298 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1383 transitions. Word has length 109 [2018-11-23 09:50:12,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:50:12,299 INFO L480 AbstractCegarLoop]: Abstraction has 1202 states and 1383 transitions. [2018-11-23 09:50:12,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 09:50:12,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1383 transitions. [2018-11-23 09:50:12,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-11-23 09:50:12,302 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:50:12,302 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:50:12,302 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:50:12,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:12,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1285625587, now seen corresponding path program 1 times [2018-11-23 09:50:12,303 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:50:12,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:12,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:50:12,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:12,304 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:50:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:50:12,365 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-23 09:50:12,366 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 09:50:12,366 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 09:50:12,366 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2018-11-23 09:50:12,366 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [33], [36], [37], [38], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [108], [110], [116], [118], [121], [136], [137], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [160], [164], [165], [173], [174], [203], [206], [210], [216], [217], [219], [222], [224], [226], [229], [231], [236], [242], [245], [249], [250], [254], [257], [259], [262], [272], [280], [283], [284], [285], [286], [287], [288], [289], [290], [291], [299], [300], [303], [305], [306], [307], [308], [309], [310], [313], [314], [319], [320], [323], [324], [325], [326], [327], [328], [333], [334], [335], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [347], [348], [349], [351], [352], [353], [354] [2018-11-23 09:50:12,369 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 09:50:12,369 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 09:50:12,573 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 09:50:12,573 INFO L272 AbstractInterpreter]: Visited 104 different actions 106 times. Never merged. Never widened. Performed 3124 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3124 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-23 09:50:12,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:12,575 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 09:50:12,819 INFO L227 lantSequenceWeakener]: Weakened 125 states. On average, predicates are now at 96.86% of their original sizes. [2018-11-23 09:50:12,819 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 09:50:13,089 INFO L415 sIntCurrentIteration]: We unified 151 AI predicates to 151 [2018-11-23 09:50:13,089 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 09:50:13,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 09:50:13,090 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [31] imperfect sequences [6] total 35 [2018-11-23 09:50:13,090 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:50:13,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-11-23 09:50:13,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-11-23 09:50:13,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=816, Unknown=0, NotChecked=0, Total=930 [2018-11-23 09:50:13,091 INFO L87 Difference]: Start difference. First operand 1202 states and 1383 transitions. Second operand 31 states. [2018-11-23 09:50:17,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:50:17,028 INFO L93 Difference]: Finished difference Result 2433 states and 2817 transitions. [2018-11-23 09:50:17,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-23 09:50:17,028 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 152 [2018-11-23 09:50:17,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:50:17,031 INFO L225 Difference]: With dead ends: 2433 [2018-11-23 09:50:17,032 INFO L226 Difference]: Without dead ends: 1255 [2018-11-23 09:50:17,033 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 164 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=190, Invalid=1702, Unknown=0, NotChecked=0, Total=1892 [2018-11-23 09:50:17,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2018-11-23 09:50:17,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1235. [2018-11-23 09:50:17,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1235 states. [2018-11-23 09:50:17,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1411 transitions. [2018-11-23 09:50:17,073 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1411 transitions. Word has length 152 [2018-11-23 09:50:17,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:50:17,073 INFO L480 AbstractCegarLoop]: Abstraction has 1235 states and 1411 transitions. [2018-11-23 09:50:17,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-11-23 09:50:17,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1411 transitions. [2018-11-23 09:50:17,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-11-23 09:50:17,077 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:50:17,077 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:50:17,077 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:50:17,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:17,077 INFO L82 PathProgramCache]: Analyzing trace with hash -299937180, now seen corresponding path program 1 times [2018-11-23 09:50:17,078 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:50:17,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:17,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:50:17,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:17,079 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:50:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:50:17,192 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-11-23 09:50:17,193 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 09:50:17,193 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 09:50:17,193 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 157 with the following transitions: [2018-11-23 09:50:17,193 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [33], [36], [37], [38], [50], [53], [55], [56], [57], [58], [59], [63], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [105], [108], [110], [116], [118], [121], [136], [137], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [162], [164], [165], [173], [174], [203], [206], [210], [216], [217], [219], [222], [224], [226], [229], [231], [236], [242], [245], [249], [250], [254], [257], [259], [262], [272], [275], [279], [280], [283], [284], [285], [286], [287], [288], [289], [290], [291], [299], [300], [303], [305], [306], [307], [308], [309], [310], [313], [314], [315], [316], [319], [320], [323], [324], [325], [326], [327], [328], [333], [334], [335], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [347], [348], [349], [351], [352], [353], [354] [2018-11-23 09:50:17,195 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 09:50:17,196 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 09:50:17,486 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 09:50:17,486 INFO L272 AbstractInterpreter]: Visited 109 different actions 134 times. Merged at 5 different actions 5 times. Never widened. Performed 7058 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7058 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-23 09:50:17,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:17,496 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 09:50:17,712 INFO L227 lantSequenceWeakener]: Weakened 129 states. On average, predicates are now at 96.84% of their original sizes. [2018-11-23 09:50:17,713 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 09:50:17,973 INFO L415 sIntCurrentIteration]: We unified 155 AI predicates to 155 [2018-11-23 09:50:17,973 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 09:50:17,973 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 09:50:17,974 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [35] imperfect sequences [7] total 40 [2018-11-23 09:50:17,974 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:50:17,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-11-23 09:50:17,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-11-23 09:50:17,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1039, Unknown=0, NotChecked=0, Total=1190 [2018-11-23 09:50:17,975 INFO L87 Difference]: Start difference. First operand 1235 states and 1411 transitions. Second operand 35 states. [2018-11-23 09:50:24,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:50:24,451 INFO L93 Difference]: Finished difference Result 2425 states and 2860 transitions. [2018-11-23 09:50:24,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-11-23 09:50:24,451 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 156 [2018-11-23 09:50:24,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:50:24,456 INFO L225 Difference]: With dead ends: 2425 [2018-11-23 09:50:24,456 INFO L226 Difference]: Without dead ends: 1634 [2018-11-23 09:50:24,459 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 176 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 794 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=324, Invalid=2756, Unknown=0, NotChecked=0, Total=3080 [2018-11-23 09:50:24,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2018-11-23 09:50:24,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1579. [2018-11-23 09:50:24,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1579 states. [2018-11-23 09:50:24,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 1816 transitions. [2018-11-23 09:50:24,533 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 1816 transitions. Word has length 156 [2018-11-23 09:50:24,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:50:24,533 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 1816 transitions. [2018-11-23 09:50:24,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-11-23 09:50:24,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 1816 transitions. [2018-11-23 09:50:24,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-11-23 09:50:24,537 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:50:24,537 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:50:24,537 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:50:24,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:24,537 INFO L82 PathProgramCache]: Analyzing trace with hash 877616733, now seen corresponding path program 1 times [2018-11-23 09:50:24,538 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:50:24,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:24,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:50:24,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:24,538 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:50:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:50:24,596 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-11-23 09:50:24,597 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 09:50:24,597 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 09:50:24,597 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 159 with the following transitions: [2018-11-23 09:50:24,598 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [33], [36], [37], [38], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [108], [110], [116], [118], [121], [136], [137], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [160], [164], [165], [173], [174], [203], [206], [210], [216], [217], [219], [224], [226], [229], [231], [236], [240], [242], [245], [249], [250], [254], [257], [259], [262], [272], [280], [283], [284], [285], [286], [287], [288], [289], [290], [291], [299], [300], [303], [305], [306], [307], [308], [309], [310], [313], [314], [319], [320], [323], [324], [325], [326], [327], [328], [333], [334], [335], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [347], [348], [349], [351], [352], [353], [354] [2018-11-23 09:50:24,600 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 09:50:24,600 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 09:50:25,098 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 09:50:25,098 INFO L272 AbstractInterpreter]: Visited 116 different actions 286 times. Merged at 14 different actions 14 times. Never widened. Performed 8239 root evaluator evaluations with a maximum evaluation depth of 3. Performed 8239 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 1 different actions. Largest state had 132 variables. [2018-11-23 09:50:25,103 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:25,104 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 09:50:25,407 INFO L227 lantSequenceWeakener]: Weakened 150 states. On average, predicates are now at 96.91% of their original sizes. [2018-11-23 09:50:25,407 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 09:50:25,750 INFO L415 sIntCurrentIteration]: We unified 157 AI predicates to 157 [2018-11-23 09:50:25,751 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 09:50:25,751 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 09:50:25,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [40] imperfect sequences [6] total 44 [2018-11-23 09:50:25,751 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:50:25,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-11-23 09:50:25,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-11-23 09:50:25,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=1406, Unknown=0, NotChecked=0, Total=1560 [2018-11-23 09:50:25,752 INFO L87 Difference]: Start difference. First operand 1579 states and 1816 transitions. Second operand 40 states. [2018-11-23 09:50:31,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:50:31,813 INFO L93 Difference]: Finished difference Result 2926 states and 3453 transitions. [2018-11-23 09:50:31,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-11-23 09:50:31,814 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 158 [2018-11-23 09:50:31,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:50:31,820 INFO L225 Difference]: With dead ends: 2926 [2018-11-23 09:50:31,821 INFO L226 Difference]: Without dead ends: 2135 [2018-11-23 09:50:31,823 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 189 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1484 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=414, Invalid=4698, Unknown=0, NotChecked=0, Total=5112 [2018-11-23 09:50:31,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2135 states. [2018-11-23 09:50:31,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2135 to 1887. [2018-11-23 09:50:31,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1887 states. [2018-11-23 09:50:31,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2155 transitions. [2018-11-23 09:50:31,914 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 2155 transitions. Word has length 158 [2018-11-23 09:50:31,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:50:31,914 INFO L480 AbstractCegarLoop]: Abstraction has 1887 states and 2155 transitions. [2018-11-23 09:50:31,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-11-23 09:50:31,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 2155 transitions. [2018-11-23 09:50:31,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-11-23 09:50:31,918 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:50:31,918 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:50:31,918 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:50:31,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:31,919 INFO L82 PathProgramCache]: Analyzing trace with hash -896908535, now seen corresponding path program 1 times [2018-11-23 09:50:31,919 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:50:31,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:31,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:50:31,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:31,920 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:50:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:50:31,987 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-11-23 09:50:31,988 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 09:50:31,988 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 09:50:31,988 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 165 with the following transitions: [2018-11-23 09:50:31,988 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [33], [36], [37], [38], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [105], [108], [110], [113], [118], [121], [136], [137], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [160], [164], [165], [168], [170], [172], [173], [174], [203], [206], [210], [216], [217], [219], [222], [224], [226], [229], [231], [236], [242], [245], [249], [250], [254], [257], [259], [262], [272], [275], [279], [280], [283], [284], [285], [286], [287], [288], [289], [290], [291], [299], [300], [303], [305], [306], [307], [308], [309], [310], [313], [314], [315], [316], [317], [318], [319], [320], [323], [324], [325], [326], [327], [328], [333], [334], [335], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [347], [348], [349], [351], [352], [353], [354] [2018-11-23 09:50:31,991 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 09:50:31,992 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 09:50:32,266 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 09:50:32,267 INFO L272 AbstractInterpreter]: Visited 83 different actions 133 times. Merged at 6 different actions 6 times. Never widened. Performed 7076 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7076 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-23 09:50:32,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:32,272 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 09:50:32,405 INFO L227 lantSequenceWeakener]: Weakened 95 states. On average, predicates are now at 96.54% of their original sizes. [2018-11-23 09:50:32,405 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 09:50:32,528 INFO L415 sIntCurrentIteration]: We unified 163 AI predicates to 163 [2018-11-23 09:50:32,528 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 09:50:32,528 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 09:50:32,528 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [6] total 28 [2018-11-23 09:50:32,528 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:50:32,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-23 09:50:32,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-23 09:50:32,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2018-11-23 09:50:32,529 INFO L87 Difference]: Start difference. First operand 1887 states and 2155 transitions. Second operand 24 states. [2018-11-23 09:50:35,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:50:35,493 INFO L93 Difference]: Finished difference Result 3303 states and 3882 transitions. [2018-11-23 09:50:35,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-23 09:50:35,494 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 164 [2018-11-23 09:50:35,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:50:35,501 INFO L225 Difference]: With dead ends: 3303 [2018-11-23 09:50:35,501 INFO L226 Difference]: Without dead ends: 2256 [2018-11-23 09:50:35,503 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 175 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=174, Invalid=1086, Unknown=0, NotChecked=0, Total=1260 [2018-11-23 09:50:35,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2018-11-23 09:50:35,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 2207. [2018-11-23 09:50:35,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2207 states. [2018-11-23 09:50:35,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 2539 transitions. [2018-11-23 09:50:35,606 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 2539 transitions. Word has length 164 [2018-11-23 09:50:35,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:50:35,606 INFO L480 AbstractCegarLoop]: Abstraction has 2207 states and 2539 transitions. [2018-11-23 09:50:35,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-11-23 09:50:35,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 2539 transitions. [2018-11-23 09:50:35,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-11-23 09:50:35,610 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:50:35,610 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:50:35,610 INFO L423 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:50:35,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:35,611 INFO L82 PathProgramCache]: Analyzing trace with hash -946132364, now seen corresponding path program 1 times [2018-11-23 09:50:35,611 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:50:35,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:35,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:50:35,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:35,611 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:50:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:50:35,694 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-11-23 09:50:35,695 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 09:50:35,695 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 09:50:35,696 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 163 with the following transitions: [2018-11-23 09:50:35,696 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [33], [36], [37], [38], [50], [53], [55], [56], [57], [58], [59], [63], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [105], [108], [110], [116], [118], [121], [136], [137], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [162], [164], [165], [173], [174], [203], [206], [210], [216], [217], [219], [224], [226], [229], [231], [236], [240], [242], [245], [249], [250], [254], [257], [259], [262], [272], [275], [279], [280], [283], [284], [285], [286], [287], [288], [289], [290], [291], [299], [300], [303], [305], [306], [307], [308], [309], [310], [313], [314], [315], [316], [319], [320], [323], [324], [325], [326], [327], [328], [333], [334], [335], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [347], [348], [349], [351], [352], [353], [354] [2018-11-23 09:50:35,699 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 09:50:35,699 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 09:50:36,224 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 09:50:36,224 INFO L272 AbstractInterpreter]: Visited 121 different actions 441 times. Merged at 13 different actions 24 times. Never widened. Performed 15213 root evaluator evaluations with a maximum evaluation depth of 3. Performed 15213 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 2 different actions. Largest state had 132 variables. [2018-11-23 09:50:36,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:36,225 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 09:50:36,396 INFO L227 lantSequenceWeakener]: Weakened 154 states. On average, predicates are now at 97.21% of their original sizes. [2018-11-23 09:50:36,396 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 09:50:36,668 INFO L415 sIntCurrentIteration]: We unified 161 AI predicates to 161 [2018-11-23 09:50:36,668 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 09:50:36,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 09:50:36,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [40] imperfect sequences [9] total 47 [2018-11-23 09:50:36,669 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:50:36,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-11-23 09:50:36,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-11-23 09:50:36,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1370, Unknown=0, NotChecked=0, Total=1560 [2018-11-23 09:50:36,670 INFO L87 Difference]: Start difference. First operand 2207 states and 2539 transitions. Second operand 40 states. [2018-11-23 09:50:48,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:50:48,709 INFO L93 Difference]: Finished difference Result 4252 states and 5032 transitions. [2018-11-23 09:50:48,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-11-23 09:50:48,709 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 162 [2018-11-23 09:50:48,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:50:48,715 INFO L225 Difference]: With dead ends: 4252 [2018-11-23 09:50:48,715 INFO L226 Difference]: Without dead ends: 3090 [2018-11-23 09:50:48,718 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 219 GetRequests, 114 SyntacticMatches, 9 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3159 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=766, Invalid=8740, Unknown=0, NotChecked=0, Total=9506 [2018-11-23 09:50:48,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3090 states. [2018-11-23 09:50:48,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3090 to 2959. [2018-11-23 09:50:48,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2959 states. [2018-11-23 09:50:48,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2959 states to 2959 states and 3405 transitions. [2018-11-23 09:50:48,859 INFO L78 Accepts]: Start accepts. Automaton has 2959 states and 3405 transitions. Word has length 162 [2018-11-23 09:50:48,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:50:48,859 INFO L480 AbstractCegarLoop]: Abstraction has 2959 states and 3405 transitions. [2018-11-23 09:50:48,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-11-23 09:50:48,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2959 states and 3405 transitions. [2018-11-23 09:50:48,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-11-23 09:50:48,862 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:50:48,862 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:50:48,862 INFO L423 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:50:48,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:48,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1481020937, now seen corresponding path program 1 times [2018-11-23 09:50:48,862 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:50:48,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:48,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:50:48,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:48,863 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:50:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:50:48,932 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-11-23 09:50:48,932 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 09:50:48,932 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 09:50:48,933 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 169 with the following transitions: [2018-11-23 09:50:48,933 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [33], [36], [37], [38], [50], [53], [55], [56], [59], [62], [63], [64], [65], [80], [83], [84], [85], [94], [98], [102], [105], [108], [110], [113], [118], [121], [140], [141], [142], [144], [147], [152], [153], [154], [155], [157], [160], [162], [164], [165], [168], [170], [172], [173], [174], [206], [210], [216], [217], [219], [222], [224], [226], [229], [231], [236], [242], [250], [254], [257], [259], [262], [265], [272], [275], [279], [280], [283], [284], [285], [286], [287], [288], [289], [290], [291], [299], [300], [303], [305], [306], [313], [314], [315], [316], [317], [318], [319], [320], [323], [324], [327], [328], [335], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [347], [348], [349], [351], [352], [353], [354], [355], [356] [2018-11-23 09:50:48,934 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 09:50:48,934 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 09:50:50,491 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 09:50:50,491 INFO L272 AbstractInterpreter]: Visited 120 different actions 1065 times. Merged at 36 different actions 225 times. Widened at 1 different actions 2 times. Performed 49905 root evaluator evaluations with a maximum evaluation depth of 3. Performed 49905 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 38 fixpoints after 9 different actions. Largest state had 132 variables. [2018-11-23 09:50:50,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:50,496 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 09:50:50,496 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 09:50:50,496 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5cba814e-6265-4345-86f4-42c6e5a331c1/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 09:50:50,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:50:50,548 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 09:50:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:50:50,674 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:50:50,765 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-23 09:50:50,765 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 09:50:51,298 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-11-23 09:50:51,315 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 09:50:51,315 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 9] total 19 [2018-11-23 09:50:51,316 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:50:51,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 09:50:51,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 09:50:51,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2018-11-23 09:50:51,317 INFO L87 Difference]: Start difference. First operand 2959 states and 3405 transitions. Second operand 8 states. [2018-11-23 09:50:51,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:50:51,555 INFO L93 Difference]: Finished difference Result 5695 states and 6620 transitions. [2018-11-23 09:50:51,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 09:50:51,556 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 168 [2018-11-23 09:50:51,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:50:51,562 INFO L225 Difference]: With dead ends: 5695 [2018-11-23 09:50:51,563 INFO L226 Difference]: Without dead ends: 2901 [2018-11-23 09:50:51,567 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 320 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2018-11-23 09:50:51,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2018-11-23 09:50:51,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 2897. [2018-11-23 09:50:51,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2897 states. [2018-11-23 09:50:51,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2897 states to 2897 states and 3324 transitions. [2018-11-23 09:50:51,651 INFO L78 Accepts]: Start accepts. Automaton has 2897 states and 3324 transitions. Word has length 168 [2018-11-23 09:50:51,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:50:51,651 INFO L480 AbstractCegarLoop]: Abstraction has 2897 states and 3324 transitions. [2018-11-23 09:50:51,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 09:50:51,651 INFO L276 IsEmpty]: Start isEmpty. Operand 2897 states and 3324 transitions. [2018-11-23 09:50:51,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-11-23 09:50:51,654 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:50:51,654 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:50:51,655 INFO L423 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:50:51,655 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:51,655 INFO L82 PathProgramCache]: Analyzing trace with hash -6483395, now seen corresponding path program 1 times [2018-11-23 09:50:51,655 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:50:51,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:51,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:50:51,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:50:51,656 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:50:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:50:51,702 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-11-23 09:50:51,702 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 09:50:51,702 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 09:50:51,702 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 177 with the following transitions: [2018-11-23 09:50:51,703 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [26], [33], [36], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [76], [80], [83], [85], [94], [98], [102], [108], [110], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [160], [164], [165], [173], [174], [203], [206], [210], [216], [217], [219], [224], [226], [229], [231], [236], [240], [242], [245], [249], [250], [254], [257], [259], [262], [272], [280], [283], [284], [285], [286], [287], [288], [289], [290], [291], [293], [294], [295], [296], [299], [300], [301], [302], [303], [305], [306], [307], [308], [311], [312], [313], [314], [319], [320], [323], [324], [325], [326], [327], [328], [333], [334], [335], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [347], [348], [349], [351], [352], [353], [354] [2018-11-23 09:50:51,704 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 09:50:51,704 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 09:50:52,325 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 09:50:52,325 INFO L272 AbstractInterpreter]: Visited 138 different actions 550 times. Merged at 16 different actions 33 times. Never widened. Performed 20518 root evaluator evaluations with a maximum evaluation depth of 5. Performed 20518 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 5 fixpoints after 3 different actions. Largest state had 132 variables. [2018-11-23 09:50:52,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:50:52,327 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 09:50:52,327 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 09:50:52,327 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5cba814e-6265-4345-86f4-42c6e5a331c1/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 09:50:52,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:50:52,333 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 09:50:52,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:50:52,400 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:50:52,506 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 35 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-23 09:50:52,506 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 09:50:52,690 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-11-23 09:50:52,708 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 09:50:52,708 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6, 9] total 19 [2018-11-23 09:50:52,708 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:50:52,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 09:50:52,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 09:50:52,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2018-11-23 09:50:52,709 INFO L87 Difference]: Start difference. First operand 2897 states and 3324 transitions. Second operand 9 states. [2018-11-23 09:50:53,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:50:53,027 INFO L93 Difference]: Finished difference Result 5252 states and 6196 transitions. [2018-11-23 09:50:53,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 09:50:53,028 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2018-11-23 09:50:53,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:50:53,029 INFO L225 Difference]: With dead ends: 5252 [2018-11-23 09:50:53,029 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 09:50:53,034 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 339 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2018-11-23 09:50:53,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 09:50:53,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 09:50:53,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 09:50:53,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 09:50:53,035 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 176 [2018-11-23 09:50:53,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:50:53,035 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 09:50:53,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 09:50:53,035 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 09:50:53,035 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 09:50:53,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 09:50:53,113 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,154 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,223 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,242 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,246 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,255 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,271 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,273 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,303 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,303 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,309 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,316 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,317 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,360 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,403 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,531 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,532 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,540 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,587 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,618 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,640 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,643 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,651 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,658 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,663 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,733 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,762 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,764 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,772 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,778 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,788 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,794 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,798 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,807 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,883 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,892 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,900 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,930 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,931 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,932 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,933 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,953 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,958 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,960 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,964 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,969 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,978 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:53,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:54,094 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:50:54,276 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 30 [2018-11-23 09:50:54,422 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 28 [2018-11-23 09:50:54,777 WARN L180 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 36 [2018-11-23 09:50:54,894 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 28 [2018-11-23 09:50:55,024 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 28 [2018-11-23 09:50:55,769 WARN L180 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 66 [2018-11-23 09:50:55,924 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 33 [2018-11-23 09:50:56,099 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 28 [2018-11-23 09:50:56,702 WARN L180 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 71 [2018-11-23 09:50:56,933 WARN L180 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 30 [2018-11-23 09:50:57,269 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 28 [2018-11-23 09:50:57,403 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 32 [2018-11-23 09:50:57,815 WARN L180 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 56 [2018-11-23 09:50:57,945 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 32 [2018-11-23 09:50:58,093 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 28 [2018-11-23 09:50:58,219 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 32 [2018-11-23 09:50:58,350 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 28 [2018-11-23 09:50:58,705 WARN L180 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 52 [2018-11-23 09:50:59,118 WARN L180 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 63 [2018-11-23 09:50:59,247 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 32 [2018-11-23 09:50:59,782 WARN L180 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 61 [2018-11-23 09:51:00,193 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 26 [2018-11-23 09:51:00,363 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 32 [2018-11-23 09:51:00,623 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 32 [2018-11-23 09:51:00,873 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 35 [2018-11-23 09:51:00,876 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 623 629) the Hoare annotation is: true [2018-11-23 09:51:00,876 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 623 629) no Hoare annotation was computed. [2018-11-23 09:51:00,876 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 630 638) no Hoare annotation was computed. [2018-11-23 09:51:00,876 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 630 638) the Hoare annotation is: true [2018-11-23 09:51:00,876 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 630 638) no Hoare annotation was computed. [2018-11-23 09:51:00,876 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 547 569) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 09:51:00,876 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 547 569) no Hoare annotation was computed. [2018-11-23 09:51:00,876 INFO L444 ceAbstractionStarter]: At program point L559(line 559) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= main_~tmp~7 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 09:51:00,876 INFO L444 ceAbstractionStarter]: At program point L559-1(line 559) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= main_~tmp~7 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 09:51:00,876 INFO L448 ceAbstractionStarter]: For program point L557(lines 557 564) no Hoare annotation was computed. [2018-11-23 09:51:00,876 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 547 569) no Hoare annotation was computed. [2018-11-23 09:51:00,876 INFO L448 ceAbstractionStarter]: For program point L557-1(lines 557 564) no Hoare annotation was computed. [2018-11-23 09:51:00,877 INFO L448 ceAbstractionStarter]: For program point L555(line 555) no Hoare annotation was computed. [2018-11-23 09:51:00,877 INFO L444 ceAbstractionStarter]: At program point L554(line 554) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 09:51:00,877 INFO L444 ceAbstractionStarter]: At program point L553(line 553) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 09:51:00,877 INFO L444 ceAbstractionStarter]: At program point L553-1(line 553) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 09:51:00,877 INFO L444 ceAbstractionStarter]: At program point L190(line 190) the Hoare annotation is: (let ((.cse0 (< 1 ~waterLevel~0)) (.cse6 (not (= 1 |old(~pumpRunning~0)|))) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse6 .cse2) (or .cse0 .cse6 .cse2 .cse4 .cse3) (or .cse5 .cse1 (<= 3 ~waterLevel~0) .cse2) (or .cse1 .cse2 .cse3 (not (= ~waterLevel~0 2))))) [2018-11-23 09:51:00,877 INFO L448 ceAbstractionStarter]: For program point L188(lines 188 196) no Hoare annotation was computed. [2018-11-23 09:51:00,877 INFO L444 ceAbstractionStarter]: At program point L186(line 186) the Hoare annotation is: (let ((.cse0 (< 1 ~waterLevel~0)) (.cse6 (not (= 1 |old(~pumpRunning~0)|))) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse6 .cse2) (or .cse0 .cse6 .cse2 .cse4 .cse3) (or .cse5 .cse1 (<= 3 ~waterLevel~0) .cse2) (or .cse1 .cse2 .cse3 (not (= ~waterLevel~0 2))))) [2018-11-23 09:51:00,877 INFO L448 ceAbstractionStarter]: For program point L186-1(line 186) no Hoare annotation was computed. [2018-11-23 09:51:00,877 INFO L448 ceAbstractionStarter]: For program point L184(lines 184 201) no Hoare annotation was computed. [2018-11-23 09:51:00,878 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 180 204) the Hoare annotation is: (let ((.cse2 (< 1 ~waterLevel~0)) (.cse3 (not (= 1 |old(~pumpRunning~0)|))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= ~methaneLevelCritical~0 1))) (.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse7 (<= 3 ~waterLevel~0)) (.cse4 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse2 .cse3 .cse4 .cse0 .cse5) (or .cse6 .cse7 .cse4 .cse0 .cse5) (or .cse1 .cse6 .cse0 .cse7 .cse4))) [2018-11-23 09:51:00,878 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 180 204) no Hoare annotation was computed. [2018-11-23 09:51:00,878 INFO L444 ceAbstractionStarter]: At program point L199(line 199) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< 1 ~waterLevel~0)) (.cse1 (not (= 1 |old(~pumpRunning~0)|))) (.cse7 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (<= 3 ~waterLevel~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse2 .cse6 .cse3) (or .cse7 .cse0 .cse1 .cse2) (or .cse7 .cse4 .cse6 .cse5 .cse2))) [2018-11-23 09:51:00,878 INFO L448 ceAbstractionStarter]: For program point L199-1(lines 180 204) no Hoare annotation was computed. [2018-11-23 09:51:00,878 INFO L444 ceAbstractionStarter]: At program point L194(line 194) the Hoare annotation is: (let ((.cse0 (< 1 ~waterLevel~0)) (.cse6 (not (= 1 |old(~pumpRunning~0)|))) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse6 .cse2) (or .cse0 .cse6 .cse2 .cse4 .cse3) (or .cse5 .cse1 (<= 3 ~waterLevel~0) .cse2) (or .cse1 .cse2 .cse3 (not (= ~waterLevel~0 2))))) [2018-11-23 09:51:00,878 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 275 283) no Hoare annotation was computed. [2018-11-23 09:51:00,878 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 275 283) the Hoare annotation is: true [2018-11-23 09:51:00,878 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 275 283) no Hoare annotation was computed. [2018-11-23 09:51:00,878 INFO L448 ceAbstractionStarter]: For program point L348(lines 348 352) no Hoare annotation was computed. [2018-11-23 09:51:00,878 INFO L451 ceAbstractionStarter]: At program point L346(line 346) the Hoare annotation is: true [2018-11-23 09:51:00,878 INFO L448 ceAbstractionStarter]: For program point L348-2(lines 348 352) no Hoare annotation was computed. [2018-11-23 09:51:00,878 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 339 357) the Hoare annotation is: true [2018-11-23 09:51:00,878 INFO L448 ceAbstractionStarter]: For program point L346-1(line 346) no Hoare annotation was computed. [2018-11-23 09:51:00,878 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 339 357) no Hoare annotation was computed. [2018-11-23 09:51:00,879 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 339 357) no Hoare annotation was computed. [2018-11-23 09:51:00,879 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 616 622) no Hoare annotation was computed. [2018-11-23 09:51:00,879 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 616 622) the Hoare annotation is: true [2018-11-23 09:51:00,879 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 534 543) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 09:51:00,879 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 534 543) no Hoare annotation was computed. [2018-11-23 09:51:00,879 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 534 543) no Hoare annotation was computed. [2018-11-23 09:51:00,879 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 264 274) the Hoare annotation is: true [2018-11-23 09:51:00,879 INFO L451 ceAbstractionStarter]: At program point L269(line 269) the Hoare annotation is: true [2018-11-23 09:51:00,879 INFO L448 ceAbstractionStarter]: For program point L269-1(line 269) no Hoare annotation was computed. [2018-11-23 09:51:00,879 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 264 274) no Hoare annotation was computed. [2018-11-23 09:51:00,879 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 264 274) no Hoare annotation was computed. [2018-11-23 09:51:00,879 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 256 263) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (< 1 ~waterLevel~0)) (.cse2 (not (= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 (or (not (= ~methaneLevelCritical~0 1)) .cse2 .cse3)))) [2018-11-23 09:51:00,879 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 256 263) no Hoare annotation was computed. [2018-11-23 09:51:00,879 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 256 263) no Hoare annotation was computed. [2018-11-23 09:51:00,879 INFO L448 ceAbstractionStarter]: For program point L443(lines 443 449) no Hoare annotation was computed. [2018-11-23 09:51:00,879 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 439 452) no Hoare annotation was computed. [2018-11-23 09:51:00,880 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 439 452) the Hoare annotation is: true [2018-11-23 09:51:00,880 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 439 452) no Hoare annotation was computed. [2018-11-23 09:51:00,880 INFO L444 ceAbstractionStarter]: At program point L225(line 225) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< 1 ~waterLevel~0)) (.cse1 (not (= 1 |old(~pumpRunning~0)|))) (.cse7 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (<= 3 ~waterLevel~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse2 .cse6 .cse3) (or .cse7 .cse0 .cse1 .cse2) (or .cse7 .cse4 .cse6 .cse5 .cse2))) [2018-11-23 09:51:00,880 INFO L448 ceAbstractionStarter]: For program point L225-1(lines 206 230) no Hoare annotation was computed. [2018-11-23 09:51:00,880 INFO L444 ceAbstractionStarter]: At program point L220(line 220) the Hoare annotation is: (let ((.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse0 (< 1 ~waterLevel~0)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse6 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse6 .cse2) (or .cse5 .cse1 (<= 3 ~waterLevel~0) .cse2) (or .cse0 (and (= processEnvironment_~tmp~3 0) .cse4) .cse6 .cse2 .cse3) (or .cse1 .cse2 .cse3 (not (= ~waterLevel~0 2))))) [2018-11-23 09:51:00,880 INFO L444 ceAbstractionStarter]: At program point L216(line 216) the Hoare annotation is: (let ((.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse0 (< 1 ~waterLevel~0)) (.cse5 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse4 .cse0 .cse5 .cse2) (or .cse4 .cse1 (<= 3 ~waterLevel~0) .cse2) (or .cse0 .cse5 .cse2 .cse3) (or .cse1 .cse2 .cse3 (not (= ~waterLevel~0 2))))) [2018-11-23 09:51:00,880 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 206 230) no Hoare annotation was computed. [2018-11-23 09:51:00,880 INFO L448 ceAbstractionStarter]: For program point L214(lines 214 222) no Hoare annotation was computed. [2018-11-23 09:51:00,882 INFO L444 ceAbstractionStarter]: At program point L212(line 212) the Hoare annotation is: (let ((.cse0 (< 1 ~waterLevel~0)) (.cse6 (not (= 1 |old(~pumpRunning~0)|))) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse6 .cse2) (or .cse0 .cse6 .cse2 .cse4 .cse3) (or .cse5 .cse1 (<= 3 ~waterLevel~0) .cse2) (or .cse1 .cse2 .cse3 (not (= ~waterLevel~0 2))))) [2018-11-23 09:51:00,883 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 206 230) the Hoare annotation is: (let ((.cse2 (< 1 ~waterLevel~0)) (.cse3 (not (= 1 |old(~pumpRunning~0)|))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= ~methaneLevelCritical~0 1))) (.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse7 (<= 3 ~waterLevel~0)) (.cse4 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse2 .cse3 .cse4 .cse0 .cse5) (or .cse6 .cse7 .cse4 .cse0 .cse5) (or .cse1 .cse6 .cse0 .cse7 .cse4))) [2018-11-23 09:51:00,883 INFO L448 ceAbstractionStarter]: For program point L212-1(line 212) no Hoare annotation was computed. [2018-11-23 09:51:00,883 INFO L448 ceAbstractionStarter]: For program point L210(lines 210 227) no Hoare annotation was computed. [2018-11-23 09:51:00,883 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 146 152) no Hoare annotation was computed. [2018-11-23 09:51:00,883 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 146 152) the Hoare annotation is: true [2018-11-23 09:51:00,883 INFO L444 ceAbstractionStarter]: At program point L97(lines 54 99) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse1 (< ~waterLevel~0 3)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse5 (= ~pumpRunning~0 1)) (.cse3 (= test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (<= ~waterLevel~0 1) .cse4 .cse3) (and .cse1 .cse5 .cse2 .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse1 .cse4 .cse5 .cse3))) [2018-11-23 09:51:00,883 INFO L448 ceAbstractionStarter]: For program point L64(lines 64 70) no Hoare annotation was computed. [2018-11-23 09:51:00,883 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 44 107) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 09:51:00,883 INFO L448 ceAbstractionStarter]: For program point L64-1(lines 64 70) no Hoare annotation was computed. [2018-11-23 09:51:00,883 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 60) no Hoare annotation was computed. [2018-11-23 09:51:00,883 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 44 107) no Hoare annotation was computed. [2018-11-23 09:51:00,884 INFO L444 ceAbstractionStarter]: At program point L100(lines 53 101) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 09:51:00,884 INFO L448 ceAbstractionStarter]: For program point L90(lines 90 94) no Hoare annotation was computed. [2018-11-23 09:51:00,884 INFO L444 ceAbstractionStarter]: At program point L90-2(lines 84 95) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse1 (< ~waterLevel~0 3)) (.cse5 (= ~pumpRunning~0 1)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse3 (= test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= ~systemActive~0 1)) (and .cse4 .cse1 .cse5 .cse3) (and .cse0 .cse4 .cse1 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and .cse1 .cse5 .cse2 .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 09:51:00,884 INFO L448 ceAbstractionStarter]: For program point L55(lines 54 99) no Hoare annotation was computed. [2018-11-23 09:51:00,884 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 95) no Hoare annotation was computed. [2018-11-23 09:51:00,884 INFO L444 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse1 (< ~waterLevel~0 3)) (.cse5 (= ~pumpRunning~0 1)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse3 (= test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= ~systemActive~0 1)) (and .cse4 .cse1 .cse5 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (<= ~waterLevel~0 1) .cse4 .cse3) (and (= ~waterLevel~0 2) (and .cse4 .cse3) (= ~pumpRunning~0 0)) (and .cse1 .cse5 .cse2 .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 09:51:00,884 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 80) no Hoare annotation was computed. [2018-11-23 09:51:00,884 INFO L448 ceAbstractionStarter]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2018-11-23 09:51:00,884 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 44 107) no Hoare annotation was computed. [2018-11-23 09:51:00,884 INFO L444 ceAbstractionStarter]: At program point L66(line 66) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse1 (< ~waterLevel~0 3)) (.cse5 (= ~pumpRunning~0 1)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse3 (= test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= ~systemActive~0 1)) (and .cse4 .cse1 .cse5 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (<= ~waterLevel~0 1) .cse4 .cse3) (and .cse1 .cse5 .cse2 .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 09:51:00,885 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 231 238) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)))) (.cse1 (<= 3 ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or (not (= ~methaneLevelCritical~0 1)) .cse2 .cse0 .cse1))) [2018-11-23 09:51:00,885 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 231 238) no Hoare annotation was computed. [2018-11-23 09:51:00,885 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 231 238) no Hoare annotation was computed. [2018-11-23 09:51:00,885 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 453 461) no Hoare annotation was computed. [2018-11-23 09:51:00,885 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 453 461) the Hoare annotation is: true [2018-11-23 09:51:00,885 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 453 461) no Hoare annotation was computed. [2018-11-23 09:51:00,885 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 09:51:00,885 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (or (< ~waterLevel~0 3) (< 2 |old(~waterLevel~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-23 09:51:00,885 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 09:51:00,885 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 239 255) no Hoare annotation was computed. [2018-11-23 09:51:00,885 INFO L444 ceAbstractionStarter]: At program point L250(line 250) the Hoare annotation is: (let ((.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (<= 3 ~waterLevel~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) (and .cse3 (= ~methaneLevelCritical~0 activatePump_~tmp~4))) (or .cse4 .cse0 .cse2 (not (= ~waterLevel~0 1))) (or .cse4 .cse0 .cse3 .cse1 .cse2))) [2018-11-23 09:51:00,885 INFO L448 ceAbstractionStarter]: For program point L250-1(lines 239 255) no Hoare annotation was computed. [2018-11-23 09:51:00,886 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 239 255) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (<= 3 ~waterLevel~0)) (.cse3 (not (= ~systemActive~0 1))) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2018-11-23 09:51:00,886 INFO L448 ceAbstractionStarter]: For program point L246(lines 246 252) no Hoare annotation was computed. [2018-11-23 09:51:00,886 INFO L444 ceAbstractionStarter]: At program point L244(line 244) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (<= 3 ~waterLevel~0)) (.cse3 (not (= ~systemActive~0 1))) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2018-11-23 09:51:00,886 INFO L448 ceAbstractionStarter]: For program point L244-1(line 244) no Hoare annotation was computed. [2018-11-23 09:51:00,886 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 430 438) the Hoare annotation is: true [2018-11-23 09:51:00,886 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 430 438) no Hoare annotation was computed. [2018-11-23 09:51:00,886 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 430 438) no Hoare annotation was computed. [2018-11-23 09:51:00,886 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 320 338) no Hoare annotation was computed. [2018-11-23 09:51:00,886 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 333) no Hoare annotation was computed. [2018-11-23 09:51:00,886 INFO L451 ceAbstractionStarter]: At program point L327(line 327) the Hoare annotation is: true [2018-11-23 09:51:00,886 INFO L448 ceAbstractionStarter]: For program point L329-2(lines 329 333) no Hoare annotation was computed. [2018-11-23 09:51:00,886 INFO L448 ceAbstractionStarter]: For program point L327-1(line 327) no Hoare annotation was computed. [2018-11-23 09:51:00,886 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 320 338) the Hoare annotation is: true [2018-11-23 09:51:00,887 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 320 338) no Hoare annotation was computed. [2018-11-23 09:51:00,887 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 386 397) the Hoare annotation is: (let ((.cse3 (not (= 1 ~pumpRunning~0))) (.cse6 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse1 (not (= |old(~methaneLevelCritical~0)| 1))) (.cse7 (not (= 0 ~pumpRunning~0))) (.cse4 (= ~methaneLevelCritical~0 1)) (.cse0 (<= 3 ~waterLevel~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (or .cse1 .cse2) .cse3 .cse4) (or (or .cse2 .cse3) .cse5 .cse0 .cse6) (or .cse0 (or .cse7 .cse2 .cse6) .cse5) (or .cse1 .cse7 .cse4 .cse0 .cse2))) [2018-11-23 09:51:00,887 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 386 397) no Hoare annotation was computed. [2018-11-23 09:51:00,887 INFO L448 ceAbstractionStarter]: For program point L390-1(lines 386 397) no Hoare annotation was computed. [2018-11-23 09:51:00,887 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 398 406) the Hoare annotation is: true [2018-11-23 09:51:00,887 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 398 406) no Hoare annotation was computed. [2018-11-23 09:51:00,887 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 398 406) no Hoare annotation was computed. [2018-11-23 09:51:00,887 INFO L451 ceAbstractionStarter]: At program point L483-2(lines 483 497) the Hoare annotation is: true [2018-11-23 09:51:00,887 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 473 502) no Hoare annotation was computed. [2018-11-23 09:51:00,887 INFO L451 ceAbstractionStarter]: At program point L479(line 479) the Hoare annotation is: true [2018-11-23 09:51:00,887 INFO L448 ceAbstractionStarter]: For program point L479-1(line 479) no Hoare annotation was computed. [2018-11-23 09:51:00,887 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 473 502) the Hoare annotation is: true [2018-11-23 09:51:00,887 INFO L451 ceAbstractionStarter]: At program point L498(lines 473 502) the Hoare annotation is: true [2018-11-23 09:51:00,887 INFO L448 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-11-23 09:51:00,887 INFO L448 ceAbstractionStarter]: For program point L487(lines 487 491) no Hoare annotation was computed. [2018-11-23 09:51:00,887 INFO L451 ceAbstractionStarter]: At program point L487-1(lines 487 491) the Hoare annotation is: true [2018-11-23 09:51:00,887 INFO L448 ceAbstractionStarter]: For program point L484(line 484) no Hoare annotation was computed. [2018-11-23 09:51:00,888 INFO L444 ceAbstractionStarter]: At program point L128(line 128) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse15 (= ~waterLevel~0 0))) (let ((.cse9 (not (= |old(~waterLevel~0)| 1))) (.cse10 (= ~waterLevel~0 2)) (.cse8 (not (= |old(~waterLevel~0)| 2))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (<= 3 |old(~waterLevel~0)|)) (.cse13 (not .cse15)) (.cse14 (= |old(~waterLevel~0)| 0)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse11 (< 1 |old(~waterLevel~0)|)) (.cse7 (or .cse0 .cse4 .cse3)) (.cse12 (<= ~waterLevel~0 1)) (.cse6 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse4 .cse3 .cse5 .cse6) (or (or (and (or .cse7 .cse8) (or .cse0 .cse3 .cse9)) .cse4) (or (and (= 1 ~waterLevel~0) .cse6) (and .cse10 .cse6))) (or (or (or .cse4 .cse9) .cse3) .cse5 (= ~waterLevel~0 1)) (or (or .cse4 .cse3 .cse8) .cse5 .cse10) (or .cse11 .cse3 (and .cse12 .cse13) .cse4 .cse14 .cse5) (or .cse1 .cse3 .cse5 .cse8) (or .cse11 .cse1 .cse3 .cse5) (or .cse2 .cse13 .cse7 .cse14) (or .cse15 (or .cse3 (not .cse14) .cse4 .cse5)) (or .cse11 .cse7 (and .cse12 .cse6))))) [2018-11-23 09:51:00,888 INFO L448 ceAbstractionStarter]: For program point L126(lines 125 144) no Hoare annotation was computed. [2018-11-23 09:51:00,888 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 122 145) the Hoare annotation is: (let ((.cse11 (not (= ~methaneLevelCritical~0 1))) (.cse3 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse17 (= ~waterLevel~0 2)) (.cse10 (= ~waterLevel~0 1)) (.cse7 (= |old(~waterLevel~0)| 0)) (.cse14 (= ~waterLevel~0 0))) (let ((.cse8 (not .cse14)) (.cse15 (not .cse7)) (.cse18 (or .cse17 .cse10)) (.cse9 (not (= |old(~waterLevel~0)| 1))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse16 (not (= |old(~waterLevel~0)| 2))) (.cse2 (<= 3 |old(~waterLevel~0)|)) (.cse13 (or .cse11 .cse3 .cse1)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (< 1 |old(~waterLevel~0)|)) (.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse12 (<= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7 .cse1 .cse8 .cse4) (or (or (or .cse3 .cse9) .cse1) .cse4 .cse10) (or .cse6 .cse2 .cse1 .cse0 .cse4) (or .cse11 .cse6 .cse0 .cse2 .cse1) (or (and .cse12 .cse8) .cse5 .cse3 .cse7 .cse1 .cse4) (or .cse5 .cse12 .cse6 .cse1 .cse4) (or .cse2 .cse13 .cse7 .cse8) (or .cse14 (or .cse1 .cse15 .cse3 .cse4)) (or .cse5 .cse12 .cse13) (or (or (and (or .cse13 .cse16) (or .cse11 .cse1 .cse9)) .cse3) (or .cse17 (= 1 ~waterLevel~0))) (or .cse17 (or .cse3 .cse1 .cse16) .cse4) (or (or .cse6 .cse15) .cse1 .cse4 .cse14) (or (and .cse16 .cse9) .cse11 .cse6 .cse1 .cse18) (or .cse18 (or .cse6 .cse1 .cse9) .cse4) (or .cse6 .cse17 .cse1 .cse4 .cse16) (or .cse2 .cse13 .cse0) (or .cse11 .cse5 .cse6 .cse1 .cse12)))) [2018-11-23 09:51:00,888 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 122 145) no Hoare annotation was computed. [2018-11-23 09:51:00,888 INFO L444 ceAbstractionStarter]: At program point L135(line 135) the Hoare annotation is: (let ((.cse17 (= ~waterLevel~0 2)) (.cse7 (= ~waterLevel~0 1)) (.cse14 (<= ~waterLevel~0 1)) (.cse12 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse11 (= |old(~waterLevel~0)| 0))) (let ((.cse15 (not .cse11)) (.cse6 (= ~waterLevel~0 0)) (.cse2 (<= 3 |old(~waterLevel~0)|)) (.cse3 (not (= 1 |old(~pumpRunning~0)|))) (.cse0 (and .cse14 .cse12)) (.cse16 (or .cse17 .cse7)) (.cse5 (not (= |old(~waterLevel~0)| 1))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse8 (not (= |old(~waterLevel~0)| 2))) (.cse13 (not (= ~methaneLevelCritical~0 1))) (.cse9 (< 1 |old(~waterLevel~0)|)) (.cse10 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (or (or .cse3 .cse5) .cse1) .cse6 .cse4) (or .cse7 (or .cse3 .cse1 .cse8) .cse4) (or .cse9 .cse10 .cse11 .cse1 (not .cse6) .cse4) (or .cse10 .cse2 .cse1 .cse12 .cse4) (or .cse13 .cse10 .cse12 .cse2 .cse1) (or .cse9 .cse14 .cse10 .cse1 .cse4) (or .cse6 (or .cse1 .cse15 .cse3 .cse4)) (or (or .cse10 .cse15) .cse1 .cse4 .cse6) (or (and .cse8 .cse5) .cse13 .cse10 .cse1 .cse16) (or .cse2 (or .cse13 .cse3 .cse1) .cse0) (or .cse16 (or .cse10 .cse1 .cse5) .cse4) (or .cse10 .cse17 .cse1 .cse4 .cse8) (or .cse13 .cse9 .cse10 .cse1 .cse14)))) [2018-11-23 09:51:00,888 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 122 145) no Hoare annotation was computed. [2018-11-23 09:51:00,888 INFO L444 ceAbstractionStarter]: At program point L133(lines 133 139) the Hoare annotation is: (let ((.cse17 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse15 (<= ~waterLevel~0 1)) (.cse10 (= |old(~waterLevel~0)| 0))) (let ((.cse3 (= ~waterLevel~0 0)) (.cse13 (not .cse10)) (.cse6 (and (= 0 ~pumpRunning~0) .cse15)) (.cse0 (not (= 1 |old(~pumpRunning~0)|))) (.cse5 (and .cse15 .cse17)) (.cse8 (< 1 |old(~waterLevel~0)|)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse12 (not (= |old(~waterLevel~0)| 2))) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse11 (= ~waterLevel~0 1)) (.cse18 (= ~waterLevel~0 2)) (.cse16 (= ~pumpRunning~0 1)) (.cse14 (not (= ~methaneLevelCritical~0 1))) (.cse9 (not (= 0 |old(~pumpRunning~0)|))) (.cse7 (<= 3 |old(~waterLevel~0)|)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (or (or .cse0 .cse1) .cse2) .cse3 .cse4) (or .cse5 .cse2 .cse6 .cse7 .cse0 .cse4) (or .cse8 .cse9 .cse10 .cse2 (not .cse3) .cse4) (or .cse11 (or .cse0 .cse2 .cse12) .cse4) (or .cse3 (or .cse9 .cse13) .cse2 .cse4) (or .cse3 (or .cse2 .cse13 .cse0 .cse4)) (or .cse11 (or .cse9 .cse2 .cse1) .cse4) (or .cse6 .cse7 (or .cse14 .cse0 .cse2) .cse5) (or .cse8 .cse9 (and .cse15 .cse16) .cse2 .cse4 .cse5) (or .cse14 .cse8 .cse9 .cse15 .cse2) (or .cse14 .cse9 .cse2 .cse17 .cse1) (or .cse9 (and .cse18 .cse16) .cse2 .cse4 .cse12) (or (and .cse12 .cse1) .cse14 .cse9 (or .cse11 .cse18) .cse2) (or .cse16 .cse14 .cse9 .cse17 .cse7 .cse2)))) [2018-11-23 09:51:00,888 INFO L448 ceAbstractionStarter]: For program point L578-1(line 578) no Hoare annotation was computed. [2018-11-23 09:51:00,888 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification3_spec__1EXIT(lines 571 603) no Hoare annotation was computed. [2018-11-23 09:51:00,888 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification3_spec__1ENTRY(lines 571 603) the Hoare annotation is: true [2018-11-23 09:51:00,889 INFO L444 ceAbstractionStarter]: At program point L594(line 594) the Hoare annotation is: (let ((.cse1 (not (= 0 ~pumpRunning~0))) (.cse0 (< 1 ~waterLevel~0)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse6 (<= 3 ~waterLevel~0)) (.cse4 (not (= 1 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse2 .cse3 (not (= ~waterLevel~0 2))) (or .cse5 .cse1 .cse6 .cse2) (or .cse0 .cse4 .cse2 .cse3) (or .cse5 .cse6 .cse4 .cse2))) [2018-11-23 09:51:00,889 INFO L448 ceAbstractionStarter]: For program point L590(lines 590 596) no Hoare annotation was computed. [2018-11-23 09:51:00,889 INFO L444 ceAbstractionStarter]: At program point L588(line 588) the Hoare annotation is: (let ((.cse1 (not (= 0 ~pumpRunning~0))) (.cse0 (< 1 ~waterLevel~0)) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse5 (<= 3 ~waterLevel~0)) (.cse6 (not (= 1 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse5 .cse2) (or .cse0 .cse6 .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse2) (or .cse5 .cse6 .cse2 (= __utac_acc__Specification3_spec__1_~tmp~8 0) .cse3))) [2018-11-23 09:51:00,889 INFO L448 ceAbstractionStarter]: For program point L588-1(line 588) no Hoare annotation was computed. [2018-11-23 09:51:00,889 INFO L448 ceAbstractionStarter]: For program point L586(lines 586 599) no Hoare annotation was computed. [2018-11-23 09:51:00,889 INFO L448 ceAbstractionStarter]: For program point L586-1(lines 571 603) no Hoare annotation was computed. [2018-11-23 09:51:00,889 INFO L444 ceAbstractionStarter]: At program point L584(line 584) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse0 (<= 3 ~waterLevel~0)) (.cse1 (not (= 1 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (= ~waterLevel~0 0) .cse2 (= __utac_acc__Specification3_spec__1_~tmp~8 0) (not (= ~methaneLevelCritical~0 0))) (or .cse3 (not (= 0 ~pumpRunning~0)) .cse0 .cse2) (or .cse3 .cse0 .cse1 .cse2))) [2018-11-23 09:51:00,889 INFO L448 ceAbstractionStarter]: For program point L584-1(line 584) no Hoare annotation was computed. [2018-11-23 09:51:00,889 INFO L448 ceAbstractionStarter]: For program point L580(lines 580 600) no Hoare annotation was computed. [2018-11-23 09:51:00,889 INFO L451 ceAbstractionStarter]: At program point L578(line 578) the Hoare annotation is: true [2018-11-23 09:51:00,889 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 362 373) the Hoare annotation is: (let ((.cse3 (not (= ~systemActive~0 1))) (.cse1 (= ~waterLevel~0 0))) (let ((.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse10 (not (= |old(~waterLevel~0)| 2))) (.cse12 (= ~waterLevel~0 2)) (.cse11 (not (= |old(~waterLevel~0)| 1))) (.cse7 (not .cse1)) (.cse0 (= |old(~waterLevel~0)| 0)) (.cse6 (< 1 |old(~waterLevel~0)|)) (.cse9 (<= ~waterLevel~0 1)) (.cse2 (not (= 1 ~pumpRunning~0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse8 (or (= ~pumpRunning~0 0) .cse3))) (and (or (not .cse0) .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7 .cse2 .cse0 .cse8) (or .cse5 .cse6 .cse2 .cse9 .cse8) (or (or (and (or .cse5 .cse8 .cse10) (or .cse5 .cse3 .cse11)) .cse2) (or (= 1 ~waterLevel~0) .cse12)) (or (or .cse2 .cse8 .cse10) .cse4 .cse12) (or (= ~waterLevel~0 1) (or (or .cse3 .cse11) .cse2) .cse4) (or .cse7 (<= 3 |old(~waterLevel~0)|) .cse2 .cse0 .cse4 .cse8) (or .cse6 .cse9 .cse2 .cse4 .cse8)))) [2018-11-23 09:51:00,889 INFO L448 ceAbstractionStarter]: For program point L366-1(lines 362 373) no Hoare annotation was computed. [2018-11-23 09:51:00,889 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 362 373) no Hoare annotation was computed. [2018-11-23 09:51:00,889 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 527 533) no Hoare annotation was computed. [2018-11-23 09:51:00,889 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 527 533) the Hoare annotation is: true [2018-11-23 09:51:00,889 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 09:51:00,889 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-11-23 09:51:00,889 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 09:51:00,889 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 09:51:00,890 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 154 178) the Hoare annotation is: (let ((.cse2 (< 1 ~waterLevel~0)) (.cse3 (not (= 1 |old(~pumpRunning~0)|))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= ~methaneLevelCritical~0 1))) (.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse7 (<= 3 ~waterLevel~0)) (.cse4 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse2 .cse3 .cse4 .cse0 .cse5) (or .cse6 .cse7 .cse4 .cse0 .cse5) (or .cse1 .cse6 .cse0 .cse7 .cse4))) [2018-11-23 09:51:00,890 INFO L444 ceAbstractionStarter]: At program point L160(line 160) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< 1 ~waterLevel~0)) (.cse1 (not (= 1 |old(~pumpRunning~0)|))) (.cse7 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (<= 3 ~waterLevel~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse2 .cse6 .cse3) (or .cse7 .cse0 .cse1 .cse2) (or .cse7 .cse4 .cse6 .cse5 .cse2))) [2018-11-23 09:51:00,890 INFO L448 ceAbstractionStarter]: For program point L160-1(line 160) no Hoare annotation was computed. [2018-11-23 09:51:00,890 INFO L448 ceAbstractionStarter]: For program point L158(lines 158 175) no Hoare annotation was computed. [2018-11-23 09:51:00,890 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 154 178) no Hoare annotation was computed. [2018-11-23 09:51:00,890 INFO L444 ceAbstractionStarter]: At program point L173(line 173) the Hoare annotation is: (let ((.cse0 (< 1 ~waterLevel~0)) (.cse6 (not (= 1 |old(~pumpRunning~0)|))) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse6 .cse2) (or .cse0 .cse6 .cse2 .cse4 .cse3) (or .cse5 .cse1 (<= 3 ~waterLevel~0) .cse2) (or .cse1 .cse2 .cse3 (not (= ~waterLevel~0 2))))) [2018-11-23 09:51:00,890 INFO L448 ceAbstractionStarter]: For program point L173-1(lines 154 178) no Hoare annotation was computed. [2018-11-23 09:51:00,890 INFO L444 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: (let ((.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse4 (< 1 ~waterLevel~0)) (.cse5 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse6 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (<= 3 ~waterLevel~0) .cse2 (and (<= ~waterLevel~0 1) .cse3)) (or .cse4 .cse5 .cse2 .cse6) (or .cse4 .cse1 .cse3 .cse2 .cse6) (or .cse0 .cse4 .cse5 .cse2) (or .cse1 .cse2 .cse6 (not (= ~waterLevel~0 2))))) [2018-11-23 09:51:00,890 INFO L444 ceAbstractionStarter]: At program point L164(line 164) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= processEnvironment__wrappee__highWaterSensor_~tmp~1 1)) (.cse5 (<= 3 ~waterLevel~0)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse8 (not (= ~methaneLevelCritical~0 1))) (.cse6 (< 1 ~waterLevel~0)) (.cse7 (not (= 1 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~waterLevel~0 2))) (or .cse4 .cse0 .cse5 .cse2 .cse3) (or .cse6 .cse7 .cse2 .cse3) (or .cse8 .cse0 (and .cse1 .cse4) .cse5 .cse2 (and (<= ~waterLevel~0 1) .cse4)) (or .cse8 .cse6 .cse7 .cse2))) [2018-11-23 09:51:00,890 INFO L448 ceAbstractionStarter]: For program point L162(lines 162 170) no Hoare annotation was computed. [2018-11-23 09:51:00,890 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 374 385) no Hoare annotation was computed. [2018-11-23 09:51:00,890 INFO L448 ceAbstractionStarter]: For program point L378-1(lines 374 385) no Hoare annotation was computed. [2018-11-23 09:51:00,890 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 374 385) the Hoare annotation is: (let ((.cse10 (= ~waterLevel~0 1)) (.cse5 (= ~waterLevel~0 2))) (let ((.cse6 (not (= |old(~waterLevel~0)| 2))) (.cse8 (not (= ~methaneLevelCritical~0 1))) (.cse11 (or .cse10 .cse5)) (.cse7 (not (= |old(~waterLevel~0)| 1))) (.cse2 (not (= 1 ~pumpRunning~0))) (.cse0 (< 1 |old(~waterLevel~0)|)) (.cse1 (<= ~waterLevel~0 1)) (.cse9 (not (= 0 ~pumpRunning~0))) (.cse14 (not (= |old(~waterLevel~0)| 0))) (.cse12 (= 1 ~waterLevel~0)) (.cse13 (= ~waterLevel~0 0)) (.cse3 (not (= ~systemActive~0 1))) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (or .cse2 .cse3) .cse4) (or .cse2 .cse3 .cse5 .cse4 .cse6) (or (and .cse6 .cse7) .cse8 .cse9 .cse3 (or .cse5 .cse10)) (or .cse0 (or .cse8 .cse2 .cse3) .cse1) (or (and (or .cse8 .cse6) (or .cse8 .cse7)) .cse11 .cse2 .cse3) (or .cse8 .cse0 .cse9 .cse3 .cse1) (or .cse12 .cse4 (or .cse2 .cse3 .cse7)) (or .cse11 (or .cse9 .cse3 .cse7) .cse4) (or .cse13 (or .cse14 .cse2 .cse3 .cse4)) (or .cse0 .cse1 .cse9 .cse3 .cse4) (or (or .cse9 .cse14) (or .cse12 .cse13) .cse3 .cse4)))) [2018-11-23 09:51:00,890 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 463 470) no Hoare annotation was computed. [2018-11-23 09:51:00,890 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 463 470) the Hoare annotation is: true [2018-11-23 09:51:00,891 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 467) no Hoare annotation was computed. [2018-11-23 09:51:00,891 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 463 470) no Hoare annotation was computed. [2018-11-23 09:51:00,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:51:00 BoogieIcfgContainer [2018-11-23 09:51:00,900 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 09:51:00,900 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 09:51:00,900 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 09:51:00,900 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 09:51:00,901 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:50:05" (3/4) ... [2018-11-23 09:51:00,904 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 09:51:00,908 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-23 09:51:00,908 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-23 09:51:00,908 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 09:51:00,908 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-11-23 09:51:00,908 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-23 09:51:00,908 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-23 09:51:00,908 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-23 09:51:00,908 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-23 09:51:00,908 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-23 09:51:00,908 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-23 09:51:00,908 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-23 09:51:00,908 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-23 09:51:00,909 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-23 09:51:00,909 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-23 09:51:00,909 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-11-23 09:51:00,909 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-23 09:51:00,909 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 09:51:00,909 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-23 09:51:00,909 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-23 09:51:00,909 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-23 09:51:00,909 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-23 09:51:00,909 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-23 09:51:00,909 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-23 09:51:00,909 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-23 09:51:00,909 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification3_spec__1 [2018-11-23 09:51:00,909 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-23 09:51:00,909 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-23 09:51:00,909 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 09:51:00,909 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-23 09:51:00,909 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-23 09:51:00,915 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2018-11-23 09:51:00,916 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-23 09:51:00,916 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-23 09:51:00,916 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 09:51:00,917 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 09:51:00,917 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 09:51:00,918 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 09:51:00,943 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((0 == pumpRunning && waterLevel < 3) && methaneLevelCritical == 1) && splverifierCounter == 0) || !(systemActive == 1)) || !(0 == \old(pumpRunning))) || (((0 == pumpRunning && waterLevel <= 1) && methaneLevelCritical == 0) && splverifierCounter == 0)) || (((waterLevel < 3 && pumpRunning == 1) && methaneLevelCritical == 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (((waterLevel < 3 && methaneLevelCritical == 0) && pumpRunning == 1) && splverifierCounter == 0) [2018-11-23 09:51:00,943 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-23 09:51:00,978 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5cba814e-6265-4345-86f4-42c6e5a331c1/bin-2019/utaipan/witness.graphml [2018-11-23 09:51:00,978 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 09:51:00,979 INFO L168 Benchmark]: Toolchain (without parser) took 55968.36 ms. Allocated memory was 1.0 GB in the beginning and 2.8 GB in the end (delta: 1.8 GB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -166.6 MB). Peak memory consumption was 1.6 GB. Max. memory is 11.5 GB. [2018-11-23 09:51:00,979 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 09:51:00,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -148.5 MB). Peak memory consumption was 37.4 MB. Max. memory is 11.5 GB. [2018-11-23 09:51:00,980 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 09:51:00,980 INFO L168 Benchmark]: Boogie Preprocessor took 25.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 09:51:00,980 INFO L168 Benchmark]: RCFGBuilder took 534.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.8 MB). Peak memory consumption was 56.8 MB. Max. memory is 11.5 GB. [2018-11-23 09:51:00,981 INFO L168 Benchmark]: TraceAbstraction took 54918.92 ms. Allocated memory was 1.1 GB in the beginning and 2.8 GB in the end (delta: 1.6 GB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -113.9 MB). Peak memory consumption was 1.7 GB. Max. memory is 11.5 GB. [2018-11-23 09:51:00,981 INFO L168 Benchmark]: Witness Printer took 78.15 ms. Allocated memory is still 2.8 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 36.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 11.5 GB. [2018-11-23 09:51:00,983 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 383.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -148.5 MB). Peak memory consumption was 37.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 534.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.8 MB). Peak memory consumption was 56.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 54918.92 ms. Allocated memory was 1.1 GB in the beginning and 2.8 GB in the end (delta: 1.6 GB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -113.9 MB). Peak memory consumption was 1.7 GB. Max. memory is 11.5 GB. * Witness Printer took 78.15 ms. Allocated memory is still 2.8 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 36.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 467]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 483]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (((((((((0 == pumpRunning && waterLevel < 3) && methaneLevelCritical == 1) && splverifierCounter == 0) || !(systemActive == 1)) || !(0 == \old(pumpRunning))) || (((0 == pumpRunning && waterLevel <= 1) && methaneLevelCritical == 0) && splverifierCounter == 0)) || (((waterLevel < 3 && pumpRunning == 1) && methaneLevelCritical == 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (((waterLevel < 3 && methaneLevelCritical == 0) && pumpRunning == 1) && splverifierCounter == 0) - InvariantResult [Line: 473]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 169 locations, 1 error locations. SAFE Result, 54.8s OverallTime, 18 OverallIterations, 4 TraceHistogramMax, 36.2s AutomataDifference, 0.0s DeadEndRemovalTime, 7.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 4549 SDtfs, 4964 SDslu, 31444 SDs, 0 SdLazy, 8377 SolverSat, 1688 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.2s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 1843 GetRequests, 1402 SyntacticMatches, 20 SemanticMatches, 421 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6412 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2959occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.3s AbstIntTime, 8 AbstIntIterations, 6 AbstIntStrong, 0.9964983989428221 AbsIntWeakeningRatio, 0.8877665544332211 AbsIntAvgWeakeningVarsNumRemoved, 73.60044893378226 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 18 MinimizatonAttempts, 613 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 7511 PreInvPairs, 7852 NumberOfFragments, 4259 HoareAnnotationTreeSize, 7511 FomulaSimplifications, 34116 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 70 FomulaSimplificationsInter, 88433 FormulaSimplificationTreeSizeReductionInter, 6.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 2408 NumberOfCodeBlocks, 2408 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2730 ConstructedInterpolants, 0 QuantifiedInterpolants, 569058 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1804 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 22 InterpolantComputations, 12 PerfectInterpolantSequences, 555/581 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...