./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product45_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fad5acd8-3b89-4e74-a835-fe2c0e724d6e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fad5acd8-3b89-4e74-a835-fe2c0e724d6e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fad5acd8-3b89-4e74-a835-fe2c0e724d6e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fad5acd8-3b89-4e74-a835-fe2c0e724d6e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product45_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fad5acd8-3b89-4e74-a835-fe2c0e724d6e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fad5acd8-3b89-4e74-a835-fe2c0e724d6e/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 9b7549a4c392cf253bbff25b83e97c5c89bfd389 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 16:57:10,518 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:57:10,519 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:57:10,528 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:57:10,528 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:57:10,529 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:57:10,530 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:57:10,531 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:57:10,532 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:57:10,533 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:57:10,533 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:57:10,534 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:57:10,534 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:57:10,535 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:57:10,536 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:57:10,536 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:57:10,536 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:57:10,538 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:57:10,539 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:57:10,540 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:57:10,541 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:57:10,541 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:57:10,543 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:57:10,543 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:57:10,543 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:57:10,544 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:57:10,545 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:57:10,545 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:57:10,546 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:57:10,547 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:57:10,547 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:57:10,547 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:57:10,547 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:57:10,547 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:57:10,548 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:57:10,549 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:57:10,549 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fad5acd8-3b89-4e74-a835-fe2c0e724d6e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 16:57:10,558 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:57:10,558 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:57:10,559 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:57:10,559 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:57:10,559 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:57:10,559 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:57:10,559 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:57:10,559 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 16:57:10,560 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:57:10,560 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:57:10,560 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 16:57:10,560 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 16:57:10,560 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:57:10,561 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:57:10,561 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:57:10,561 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:57:10,561 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:57:10,561 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:57:10,561 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:57:10,561 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:57:10,561 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:57:10,562 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:57:10,562 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:57:10,562 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:57:10,562 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:57:10,562 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:57:10,562 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:57:10,562 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:57:10,563 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:57:10,563 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:57:10,563 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:57:10,563 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:57:10,563 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:57:10,563 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 16:57:10,563 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:57:10,563 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:57:10,564 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 16:57:10,564 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_fad5acd8-3b89-4e74-a835-fe2c0e724d6e/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 -> 9b7549a4c392cf253bbff25b83e97c5c89bfd389 [2018-11-18 16:57:10,587 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:57:10,596 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:57:10,599 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:57:10,600 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:57:10,600 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:57:10,601 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fad5acd8-3b89-4e74-a835-fe2c0e724d6e/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product45_true-unreach-call_false-termination.cil.c [2018-11-18 16:57:10,645 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fad5acd8-3b89-4e74-a835-fe2c0e724d6e/bin-2019/utaipan/data/216be6003/fe92181ad8ae44c792400dd219abb3ed/FLAG108d04a4e [2018-11-18 16:57:11,076 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:57:11,076 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fad5acd8-3b89-4e74-a835-fe2c0e724d6e/sv-benchmarks/c/product-lines/minepump_spec2_product45_true-unreach-call_false-termination.cil.c [2018-11-18 16:57:11,083 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fad5acd8-3b89-4e74-a835-fe2c0e724d6e/bin-2019/utaipan/data/216be6003/fe92181ad8ae44c792400dd219abb3ed/FLAG108d04a4e [2018-11-18 16:57:11,091 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fad5acd8-3b89-4e74-a835-fe2c0e724d6e/bin-2019/utaipan/data/216be6003/fe92181ad8ae44c792400dd219abb3ed [2018-11-18 16:57:11,093 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:57:11,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:57:11,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:57:11,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:57:11,098 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:57:11,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:57:11" (1/1) ... [2018-11-18 16:57:11,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345e74ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:11, skipping insertion in model container [2018-11-18 16:57:11,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:57:11" (1/1) ... [2018-11-18 16:57:11,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:57:11,136 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:57:11,319 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:57:11,327 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:57:11,425 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:57:11,440 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:57:11,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:11 WrapperNode [2018-11-18 16:57:11,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:57:11,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:57:11,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:57:11,441 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:57:11,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:11" (1/1) ... [2018-11-18 16:57:11,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:11" (1/1) ... [2018-11-18 16:57:11,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:57:11,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:57:11,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:57:11,463 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:57:11,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:11" (1/1) ... [2018-11-18 16:57:11,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:11" (1/1) ... [2018-11-18 16:57:11,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:11" (1/1) ... [2018-11-18 16:57:11,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:11" (1/1) ... [2018-11-18 16:57:11,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:11" (1/1) ... [2018-11-18 16:57:11,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:11" (1/1) ... [2018-11-18 16:57:11,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:11" (1/1) ... [2018-11-18 16:57:11,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:57:11,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:57:11,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:57:11,489 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:57:11,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fad5acd8-3b89-4e74-a835-fe2c0e724d6e/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:57:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-18 16:57:11,527 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-18 16:57:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:57:11,527 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:57:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:57:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-18 16:57:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-18 16:57:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-18 16:57:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-18 16:57:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-18 16:57:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-18 16:57:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 16:57:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 16:57:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-18 16:57:11,529 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-18 16:57:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2018-11-18 16:57:11,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2018-11-18 16:57:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2018-11-18 16:57:11,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2018-11-18 16:57:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-18 16:57:11,529 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-18 16:57:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-18 16:57:11,530 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-18 16:57:11,530 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-18 16:57:11,530 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-18 16:57:11,530 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 16:57:11,530 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 16:57:11,530 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 16:57:11,530 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 16:57:11,530 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-18 16:57:11,530 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-18 16:57:11,530 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 16:57:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 16:57:11,531 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-18 16:57:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-18 16:57:11,531 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-18 16:57:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-18 16:57:11,531 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-11-18 16:57:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-11-18 16:57:11,531 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-18 16:57:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-18 16:57:11,532 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-18 16:57:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-18 16:57:11,532 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-18 16:57:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-18 16:57:11,532 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-18 16:57:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-18 16:57:11,532 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-11-18 16:57:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-11-18 16:57:11,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:57:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:57:11,533 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 16:57:11,533 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 16:57:11,533 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-18 16:57:11,533 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-18 16:57:11,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:57:11,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:57:11,993 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:57:11,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:57:11 BoogieIcfgContainer [2018-11-18 16:57:11,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:57:11,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:57:11,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:57:11,996 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:57:11,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:57:11" (1/3) ... [2018-11-18 16:57:11,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651a6f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:57:11, skipping insertion in model container [2018-11-18 16:57:11,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:11" (2/3) ... [2018-11-18 16:57:11,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651a6f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:57:11, skipping insertion in model container [2018-11-18 16:57:11,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:57:11" (3/3) ... [2018-11-18 16:57:11,999 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product45_true-unreach-call_false-termination.cil.c [2018-11-18 16:57:12,005 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:57:12,010 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:57:12,020 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:57:12,043 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:57:12,043 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:57:12,043 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:57:12,043 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:57:12,043 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:57:12,043 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:57:12,043 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:57:12,044 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:57:12,058 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2018-11-18 16:57:12,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-18 16:57:12,064 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:12,065 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:57:12,067 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:12,071 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:12,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1903449990, now seen corresponding path program 1 times [2018-11-18 16:57:12,073 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:57:12,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:12,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:12,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:12,103 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:57:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:12,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:57:12,275 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:57:12,275 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 16:57:12,275 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:57:12,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 16:57:12,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 16:57:12,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:57:12,289 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 2 states. [2018-11-18 16:57:12,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:12,317 INFO L93 Difference]: Finished difference Result 270 states and 337 transitions. [2018-11-18 16:57:12,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 16:57:12,319 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2018-11-18 16:57:12,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:12,329 INFO L225 Difference]: With dead ends: 270 [2018-11-18 16:57:12,330 INFO L226 Difference]: Without dead ends: 137 [2018-11-18 16:57:12,333 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:57:12,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-11-18 16:57:12,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2018-11-18 16:57:12,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-11-18 16:57:12,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 162 transitions. [2018-11-18 16:57:12,376 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 162 transitions. Word has length 51 [2018-11-18 16:57:12,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:12,376 INFO L480 AbstractCegarLoop]: Abstraction has 137 states and 162 transitions. [2018-11-18 16:57:12,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 16:57:12,377 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 162 transitions. [2018-11-18 16:57:12,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 16:57:12,379 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:12,379 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:57:12,379 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:12,379 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:12,380 INFO L82 PathProgramCache]: Analyzing trace with hash -726837696, now seen corresponding path program 1 times [2018-11-18 16:57:12,380 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:57:12,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:12,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:12,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:12,382 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:57:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:12,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:57:12,479 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:57:12,479 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 16:57:12,479 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:57:12,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 16:57:12,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 16:57:12,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 16:57:12,481 INFO L87 Difference]: Start difference. First operand 137 states and 162 transitions. Second operand 3 states. [2018-11-18 16:57:12,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:12,500 INFO L93 Difference]: Finished difference Result 217 states and 257 transitions. [2018-11-18 16:57:12,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 16:57:12,501 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2018-11-18 16:57:12,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:12,502 INFO L225 Difference]: With dead ends: 217 [2018-11-18 16:57:12,502 INFO L226 Difference]: Without dead ends: 127 [2018-11-18 16:57:12,504 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 16:57:12,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-11-18 16:57:12,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2018-11-18 16:57:12,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-11-18 16:57:12,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 149 transitions. [2018-11-18 16:57:12,514 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 149 transitions. Word has length 53 [2018-11-18 16:57:12,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:12,515 INFO L480 AbstractCegarLoop]: Abstraction has 127 states and 149 transitions. [2018-11-18 16:57:12,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 16:57:12,515 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 149 transitions. [2018-11-18 16:57:12,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-18 16:57:12,516 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:12,516 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:57:12,517 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:12,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:12,517 INFO L82 PathProgramCache]: Analyzing trace with hash -285878791, now seen corresponding path program 1 times [2018-11-18 16:57:12,517 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:57:12,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:12,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:12,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:12,518 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:57:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:12,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:57:12,645 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:57:12,645 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 16:57:12,645 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:57:12,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 16:57:12,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 16:57:12,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 16:57:12,647 INFO L87 Difference]: Start difference. First operand 127 states and 149 transitions. Second operand 7 states. [2018-11-18 16:57:12,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:12,947 INFO L93 Difference]: Finished difference Result 226 states and 271 transitions. [2018-11-18 16:57:12,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 16:57:12,948 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2018-11-18 16:57:12,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:12,949 INFO L225 Difference]: With dead ends: 226 [2018-11-18 16:57:12,949 INFO L226 Difference]: Without dead ends: 127 [2018-11-18 16:57:12,950 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 16:57:12,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-11-18 16:57:12,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2018-11-18 16:57:12,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-11-18 16:57:12,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 148 transitions. [2018-11-18 16:57:12,966 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 148 transitions. Word has length 57 [2018-11-18 16:57:12,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:12,966 INFO L480 AbstractCegarLoop]: Abstraction has 127 states and 148 transitions. [2018-11-18 16:57:12,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 16:57:12,966 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 148 transitions. [2018-11-18 16:57:12,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-18 16:57:12,969 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:12,969 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:57:12,969 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:12,969 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:12,970 INFO L82 PathProgramCache]: Analyzing trace with hash 879448658, now seen corresponding path program 1 times [2018-11-18 16:57:12,970 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:57:12,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:12,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:12,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:12,972 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:57:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:13,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:57:13,072 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:57:13,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 16:57:13,072 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:57:13,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 16:57:13,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 16:57:13,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 16:57:13,073 INFO L87 Difference]: Start difference. First operand 127 states and 148 transitions. Second operand 5 states. [2018-11-18 16:57:13,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:13,405 INFO L93 Difference]: Finished difference Result 331 states and 402 transitions. [2018-11-18 16:57:13,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 16:57:13,405 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2018-11-18 16:57:13,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:13,407 INFO L225 Difference]: With dead ends: 331 [2018-11-18 16:57:13,407 INFO L226 Difference]: Without dead ends: 232 [2018-11-18 16:57:13,408 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 16:57:13,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2018-11-18 16:57:13,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 213. [2018-11-18 16:57:13,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2018-11-18 16:57:13,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 245 transitions. [2018-11-18 16:57:13,429 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 245 transitions. Word has length 70 [2018-11-18 16:57:13,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:13,429 INFO L480 AbstractCegarLoop]: Abstraction has 213 states and 245 transitions. [2018-11-18 16:57:13,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 16:57:13,430 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 245 transitions. [2018-11-18 16:57:13,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-18 16:57:13,431 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:13,432 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:57:13,432 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:13,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:13,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1370997368, now seen corresponding path program 1 times [2018-11-18 16:57:13,432 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:57:13,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:13,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:13,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:13,434 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:57:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:13,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:57:13,526 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:57:13,527 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 16:57:13,527 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:57:13,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 16:57:13,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 16:57:13,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 16:57:13,529 INFO L87 Difference]: Start difference. First operand 213 states and 245 transitions. Second operand 8 states. [2018-11-18 16:57:13,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:13,564 INFO L93 Difference]: Finished difference Result 405 states and 479 transitions. [2018-11-18 16:57:13,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 16:57:13,568 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2018-11-18 16:57:13,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:13,571 INFO L225 Difference]: With dead ends: 405 [2018-11-18 16:57:13,571 INFO L226 Difference]: Without dead ends: 220 [2018-11-18 16:57:13,572 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 16:57:13,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2018-11-18 16:57:13,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 217. [2018-11-18 16:57:13,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2018-11-18 16:57:13,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 249 transitions. [2018-11-18 16:57:13,589 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 249 transitions. Word has length 84 [2018-11-18 16:57:13,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:13,589 INFO L480 AbstractCegarLoop]: Abstraction has 217 states and 249 transitions. [2018-11-18 16:57:13,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 16:57:13,589 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 249 transitions. [2018-11-18 16:57:13,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-18 16:57:13,590 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:13,591 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:57:13,591 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:13,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:13,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1393629622, now seen corresponding path program 1 times [2018-11-18 16:57:13,591 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:57:13,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:13,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:13,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:13,592 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:57:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:13,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:57:13,711 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:57:13,711 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 16:57:13,711 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:57:13,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 16:57:13,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 16:57:13,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 16:57:13,712 INFO L87 Difference]: Start difference. First operand 217 states and 249 transitions. Second operand 6 states. [2018-11-18 16:57:13,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:13,885 INFO L93 Difference]: Finished difference Result 577 states and 683 transitions. [2018-11-18 16:57:13,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 16:57:13,886 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2018-11-18 16:57:13,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:13,888 INFO L225 Difference]: With dead ends: 577 [2018-11-18 16:57:13,888 INFO L226 Difference]: Without dead ends: 388 [2018-11-18 16:57:13,889 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 16:57:13,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2018-11-18 16:57:13,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 382. [2018-11-18 16:57:13,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-11-18 16:57:13,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 438 transitions. [2018-11-18 16:57:13,913 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 438 transitions. Word has length 84 [2018-11-18 16:57:13,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:13,913 INFO L480 AbstractCegarLoop]: Abstraction has 382 states and 438 transitions. [2018-11-18 16:57:13,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 16:57:13,914 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 438 transitions. [2018-11-18 16:57:13,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-18 16:57:13,915 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:13,915 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:57:13,915 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:13,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:13,915 INFO L82 PathProgramCache]: Analyzing trace with hash -251584530, now seen corresponding path program 1 times [2018-11-18 16:57:13,915 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:57:13,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:13,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:13,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:13,916 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:57:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:14,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:57:14,003 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:57:14,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 16:57:14,003 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:57:14,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 16:57:14,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 16:57:14,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 16:57:14,004 INFO L87 Difference]: Start difference. First operand 382 states and 438 transitions. Second operand 7 states. [2018-11-18 16:57:14,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:14,421 INFO L93 Difference]: Finished difference Result 767 states and 902 transitions. [2018-11-18 16:57:14,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 16:57:14,422 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2018-11-18 16:57:14,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:14,424 INFO L225 Difference]: With dead ends: 767 [2018-11-18 16:57:14,424 INFO L226 Difference]: Without dead ends: 413 [2018-11-18 16:57:14,425 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-11-18 16:57:14,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2018-11-18 16:57:14,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 381. [2018-11-18 16:57:14,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-11-18 16:57:14,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 435 transitions. [2018-11-18 16:57:14,447 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 435 transitions. Word has length 88 [2018-11-18 16:57:14,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:14,448 INFO L480 AbstractCegarLoop]: Abstraction has 381 states and 435 transitions. [2018-11-18 16:57:14,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 16:57:14,448 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 435 transitions. [2018-11-18 16:57:14,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-11-18 16:57:14,449 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:14,449 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:57:14,449 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:14,450 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:14,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1889421339, now seen corresponding path program 1 times [2018-11-18 16:57:14,450 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:57:14,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:14,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:14,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:14,451 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:57:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:14,531 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 16:57:14,531 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:57:14,531 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 16:57:14,532 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:57:14,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 16:57:14,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 16:57:14,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 16:57:14,532 INFO L87 Difference]: Start difference. First operand 381 states and 435 transitions. Second operand 6 states. [2018-11-18 16:57:14,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:14,571 INFO L93 Difference]: Finished difference Result 748 states and 874 transitions. [2018-11-18 16:57:14,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 16:57:14,574 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-11-18 16:57:14,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:14,578 INFO L225 Difference]: With dead ends: 748 [2018-11-18 16:57:14,578 INFO L226 Difference]: Without dead ends: 395 [2018-11-18 16:57:14,580 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 16:57:14,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2018-11-18 16:57:14,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 391. [2018-11-18 16:57:14,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2018-11-18 16:57:14,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 445 transitions. [2018-11-18 16:57:14,604 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 445 transitions. Word has length 104 [2018-11-18 16:57:14,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:14,605 INFO L480 AbstractCegarLoop]: Abstraction has 391 states and 445 transitions. [2018-11-18 16:57:14,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 16:57:14,605 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 445 transitions. [2018-11-18 16:57:14,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-11-18 16:57:14,608 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:14,608 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:57:14,608 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:14,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:14,609 INFO L82 PathProgramCache]: Analyzing trace with hash -717813384, now seen corresponding path program 1 times [2018-11-18 16:57:14,609 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:57:14,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:14,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:14,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:14,610 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:57:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:14,684 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 16:57:14,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:57:14,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 16:57:14,685 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:57:14,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 16:57:14,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 16:57:14,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 16:57:14,686 INFO L87 Difference]: Start difference. First operand 391 states and 445 transitions. Second operand 4 states. [2018-11-18 16:57:14,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:14,879 INFO L93 Difference]: Finished difference Result 1146 states and 1374 transitions. [2018-11-18 16:57:14,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 16:57:14,880 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 104 [2018-11-18 16:57:14,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:14,883 INFO L225 Difference]: With dead ends: 1146 [2018-11-18 16:57:14,883 INFO L226 Difference]: Without dead ends: 783 [2018-11-18 16:57:14,888 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 16:57:14,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2018-11-18 16:57:14,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 768. [2018-11-18 16:57:14,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2018-11-18 16:57:14,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 901 transitions. [2018-11-18 16:57:14,930 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 901 transitions. Word has length 104 [2018-11-18 16:57:14,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:14,930 INFO L480 AbstractCegarLoop]: Abstraction has 768 states and 901 transitions. [2018-11-18 16:57:14,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 16:57:14,930 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 901 transitions. [2018-11-18 16:57:14,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-11-18 16:57:14,932 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:14,932 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:57:14,932 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:14,932 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:14,932 INFO L82 PathProgramCache]: Analyzing trace with hash 636183422, now seen corresponding path program 1 times [2018-11-18 16:57:14,932 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:57:14,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:14,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:14,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:14,934 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:57:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:15,050 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 16:57:15,050 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:57:15,050 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 16:57:15,051 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2018-11-18 16:57:15,053 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [26], [36], [37], [38], [39], [43], [45], [46], [49], [53], [54], [55], [70], [73], [75], [79], [85], [89], [93], [96], [101], [104], [109], [112], [127], [128], [129], [131], [134], [136], [139], [142], [154], [155], [156], [157], [158], [160], [165], [168], [169], [171], [176], [178], [179], [184], [186], [187], [188], [194], [198], [239], [245], [249], [250], [253], [254], [255], [256], [257], [258], [259], [260], [261], [263], [264], [265], [266], [271], [272], [273], [275], [276], [283], [284], [285], [286], [287], [288], [289], [293], [294], [295], [296], [297], [299], [300], [301], [302], [303], [304], [307], [308], [309], [315], [316], [317] [2018-11-18 16:57:15,086 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 16:57:15,086 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 16:57:15,573 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 16:57:15,574 INFO L272 AbstractInterpreter]: Visited 81 different actions 81 times. Never merged. Never widened. Performed 2675 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2675 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 134 variables. [2018-11-18 16:57:15,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:15,585 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 16:57:15,866 INFO L227 lantSequenceWeakener]: Weakened 79 states. On average, predicates are now at 96.7% of their original sizes. [2018-11-18 16:57:15,866 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 16:57:15,988 INFO L415 sIntCurrentIteration]: We unified 107 AI predicates to 107 [2018-11-18 16:57:15,988 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 16:57:15,989 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 16:57:15,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [13] total 27 [2018-11-18 16:57:15,989 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:57:15,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 16:57:15,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 16:57:15,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2018-11-18 16:57:15,990 INFO L87 Difference]: Start difference. First operand 768 states and 901 transitions. Second operand 16 states. [2018-11-18 16:57:18,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:18,988 INFO L93 Difference]: Finished difference Result 1937 states and 2297 transitions. [2018-11-18 16:57:18,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-18 16:57:18,988 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 108 [2018-11-18 16:57:18,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:18,992 INFO L225 Difference]: With dead ends: 1937 [2018-11-18 16:57:18,993 INFO L226 Difference]: Without dead ends: 1197 [2018-11-18 16:57:18,994 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 113 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2018-11-18 16:57:18,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2018-11-18 16:57:19,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 1195. [2018-11-18 16:57:19,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1195 states. [2018-11-18 16:57:19,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1384 transitions. [2018-11-18 16:57:19,049 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1384 transitions. Word has length 108 [2018-11-18 16:57:19,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:19,049 INFO L480 AbstractCegarLoop]: Abstraction has 1195 states and 1384 transitions. [2018-11-18 16:57:19,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 16:57:19,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1384 transitions. [2018-11-18 16:57:19,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-11-18 16:57:19,053 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:19,053 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:57:19,053 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:19,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:19,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1965439163, now seen corresponding path program 1 times [2018-11-18 16:57:19,054 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:57:19,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:19,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:19,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:19,055 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:57:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:19,118 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-18 16:57:19,118 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:57:19,118 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 16:57:19,118 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 165 with the following transitions: [2018-11-18 16:57:19,119 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [26], [33], [36], [37], [38], [39], [43], [45], [46], [49], [53], [54], [55], [58], [60], [66], [70], [73], [74], [75], [79], [85], [89], [93], [96], [101], [104], [107], [109], [112], [127], [128], [129], [131], [134], [136], [139], [142], [151], [153], [154], [155], [156], [157], [158], [160], [165], [168], [169], [171], [176], [178], [179], [184], [186], [187], [188], [191], [194], [198], [204], [234], [238], [239], [245], [249], [250], [253], [254], [255], [256], [257], [258], [259], [260], [261], [263], [264], [265], [266], [269], [270], [271], [272], [273], [275], [276], [277], [278], [281], [282], [283], [284], [285], [286], [287], [288], [289], [290], [293], [294], [295], [296], [297], [299], [300], [301], [302], [303], [304], [305], [306], [307], [308], [309], [310], [315], [316], [317] [2018-11-18 16:57:19,122 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 16:57:19,122 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 16:57:19,765 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 16:57:19,765 INFO L272 AbstractInterpreter]: Visited 113 different actions 197 times. Merged at 9 different actions 15 times. Never widened. Performed 10382 root evaluator evaluations with a maximum evaluation depth of 3. Performed 10382 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 1 different actions. Largest state had 134 variables. [2018-11-18 16:57:19,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:19,769 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 16:57:20,328 INFO L227 lantSequenceWeakener]: Weakened 137 states. On average, predicates are now at 96.74% of their original sizes. [2018-11-18 16:57:20,328 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 16:57:20,569 INFO L415 sIntCurrentIteration]: We unified 163 AI predicates to 163 [2018-11-18 16:57:20,569 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 16:57:20,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 16:57:20,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [5] total 29 [2018-11-18 16:57:20,570 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:57:20,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-11-18 16:57:20,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-11-18 16:57:20,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=543, Unknown=0, NotChecked=0, Total=650 [2018-11-18 16:57:20,571 INFO L87 Difference]: Start difference. First operand 1195 states and 1384 transitions. Second operand 26 states. [2018-11-18 16:57:27,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:27,219 INFO L93 Difference]: Finished difference Result 3498 states and 4226 transitions. [2018-11-18 16:57:27,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-18 16:57:27,219 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 164 [2018-11-18 16:57:27,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:27,229 INFO L225 Difference]: With dead ends: 3498 [2018-11-18 16:57:27,229 INFO L226 Difference]: Without dead ends: 2880 [2018-11-18 16:57:27,232 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 174 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=222, Invalid=1110, Unknown=0, NotChecked=0, Total=1332 [2018-11-18 16:57:27,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2880 states. [2018-11-18 16:57:27,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2880 to 2749. [2018-11-18 16:57:27,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2749 states. [2018-11-18 16:57:27,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2749 states to 2749 states and 3247 transitions. [2018-11-18 16:57:27,385 INFO L78 Accepts]: Start accepts. Automaton has 2749 states and 3247 transitions. Word has length 164 [2018-11-18 16:57:27,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:27,385 INFO L480 AbstractCegarLoop]: Abstraction has 2749 states and 3247 transitions. [2018-11-18 16:57:27,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-11-18 16:57:27,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2749 states and 3247 transitions. [2018-11-18 16:57:27,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-11-18 16:57:27,391 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:27,392 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:57:27,392 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:27,392 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:27,392 INFO L82 PathProgramCache]: Analyzing trace with hash -39094395, now seen corresponding path program 1 times [2018-11-18 16:57:27,392 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:57:27,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:27,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:27,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:27,393 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:57:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:27,534 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 56 proven. 14 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-11-18 16:57:27,535 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:57:27,535 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 16:57:27,535 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 220 with the following transitions: [2018-11-18 16:57:27,535 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [26], [33], [36], [37], [38], [39], [43], [45], [46], [49], [53], [54], [55], [58], [60], [66], [70], [73], [74], [75], [79], [85], [89], [93], [96], [99], [101], [104], [107], [109], [112], [127], [128], [129], [131], [134], [136], [139], [142], [145], [151], [153], [154], [155], [156], [157], [158], [160], [165], [168], [169], [171], [176], [178], [179], [184], [186], [187], [188], [191], [194], [198], [204], [234], [238], [239], [245], [249], [250], [253], [254], [255], [256], [257], [258], [259], [260], [261], [263], [264], [265], [266], [269], [270], [271], [272], [273], [275], [276], [277], [278], [281], [282], [283], [284], [285], [286], [287], [288], [289], [290], [293], [294], [295], [296], [297], [299], [300], [301], [302], [303], [304], [305], [306], [307], [308], [309], [310], [315], [316], [317] [2018-11-18 16:57:27,538 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 16:57:27,538 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 16:57:29,110 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 16:57:29,110 INFO L272 AbstractInterpreter]: Visited 130 different actions 1195 times. Merged at 22 different actions 127 times. Widened at 1 different actions 1 times. Performed 39995 root evaluator evaluations with a maximum evaluation depth of 3. Performed 39995 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 33 fixpoints after 6 different actions. Largest state had 134 variables. [2018-11-18 16:57:29,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:29,121 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 16:57:29,121 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:57:29,121 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fad5acd8-3b89-4e74-a835-fe2c0e724d6e/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 16:57:29,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:29,128 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 16:57:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:29,230 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:57:29,366 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-11-18 16:57:29,366 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 16:57:29,806 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 56 proven. 14 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-11-18 16:57:29,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 16:57:29,823 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-11-18 16:57:29,823 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:57:29,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 16:57:29,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 16:57:29,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-18 16:57:29,824 INFO L87 Difference]: Start difference. First operand 2749 states and 3247 transitions. Second operand 8 states. [2018-11-18 16:57:30,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:30,043 INFO L93 Difference]: Finished difference Result 4776 states and 5688 transitions. [2018-11-18 16:57:30,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 16:57:30,044 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 219 [2018-11-18 16:57:30,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:30,050 INFO L225 Difference]: With dead ends: 4776 [2018-11-18 16:57:30,050 INFO L226 Difference]: Without dead ends: 2533 [2018-11-18 16:57:30,054 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 422 SyntacticMatches, 6 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-18 16:57:30,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2533 states. [2018-11-18 16:57:30,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2533 to 2470. [2018-11-18 16:57:30,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2470 states. [2018-11-18 16:57:30,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 2878 transitions. [2018-11-18 16:57:30,138 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 2878 transitions. Word has length 219 [2018-11-18 16:57:30,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:30,138 INFO L480 AbstractCegarLoop]: Abstraction has 2470 states and 2878 transitions. [2018-11-18 16:57:30,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 16:57:30,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 2878 transitions. [2018-11-18 16:57:30,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-11-18 16:57:30,143 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:30,143 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:57:30,144 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:30,144 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:30,144 INFO L82 PathProgramCache]: Analyzing trace with hash 737436615, now seen corresponding path program 1 times [2018-11-18 16:57:30,144 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:57:30,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:30,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:30,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:30,145 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:57:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:30,260 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 60 proven. 26 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2018-11-18 16:57:30,261 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:57:30,261 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 16:57:30,261 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 301 with the following transitions: [2018-11-18 16:57:30,261 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [26], [29], [36], [37], [38], [39], [43], [45], [46], [49], [52], [53], [54], [55], [70], [73], [74], [75], [79], [85], [89], [93], [96], [99], [101], [104], [107], [109], [112], [127], [128], [129], [131], [134], [136], [139], [142], [145], [151], [153], [154], [155], [156], [157], [158], [160], [165], [168], [169], [171], [174], [176], [178], [179], [182], [184], [186], [187], [188], [194], [198], [204], [239], [245], [249], [250], [253], [254], [255], [256], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [271], [272], [273], [275], [276], [283], [284], [285], [286], [287], [288], [289], [290], [293], [294], [295], [296], [297], [299], [300], [301], [302], [303], [304], [307], [308], [309], [310], [315], [316], [317] [2018-11-18 16:57:30,263 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 16:57:30,263 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 16:57:32,577 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 16:57:32,577 INFO L272 AbstractInterpreter]: Visited 121 different actions 1394 times. Merged at 38 different actions 332 times. Widened at 1 different actions 2 times. Performed 56914 root evaluator evaluations with a maximum evaluation depth of 3. Performed 56914 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 69 fixpoints after 9 different actions. Largest state had 134 variables. [2018-11-18 16:57:32,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:32,578 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 16:57:32,578 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:57:32,579 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fad5acd8-3b89-4e74-a835-fe2c0e724d6e/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 16:57:32,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:32,584 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 16:57:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:32,717 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:57:32,826 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2018-11-18 16:57:32,826 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 16:57:33,121 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 60 proven. 26 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2018-11-18 16:57:33,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 16:57:33,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [11, 7] total 19 [2018-11-18 16:57:33,137 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:57:33,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 16:57:33,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 16:57:33,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2018-11-18 16:57:33,137 INFO L87 Difference]: Start difference. First operand 2470 states and 2878 transitions. Second operand 6 states. [2018-11-18 16:57:33,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:33,373 INFO L93 Difference]: Finished difference Result 4854 states and 5729 transitions. [2018-11-18 16:57:33,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 16:57:33,373 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 300 [2018-11-18 16:57:33,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:33,379 INFO L225 Difference]: With dead ends: 4854 [2018-11-18 16:57:33,379 INFO L226 Difference]: Without dead ends: 2470 [2018-11-18 16:57:33,383 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 589 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2018-11-18 16:57:33,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2470 states. [2018-11-18 16:57:33,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2470 to 2470. [2018-11-18 16:57:33,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2470 states. [2018-11-18 16:57:33,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 2864 transitions. [2018-11-18 16:57:33,458 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 2864 transitions. Word has length 300 [2018-11-18 16:57:33,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:33,458 INFO L480 AbstractCegarLoop]: Abstraction has 2470 states and 2864 transitions. [2018-11-18 16:57:33,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 16:57:33,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 2864 transitions. [2018-11-18 16:57:33,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2018-11-18 16:57:33,463 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:33,463 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:57:33,463 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:33,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:33,463 INFO L82 PathProgramCache]: Analyzing trace with hash -414188288, now seen corresponding path program 1 times [2018-11-18 16:57:33,464 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:57:33,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:33,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:33,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:33,464 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:57:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:33,553 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 122 proven. 43 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2018-11-18 16:57:33,553 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:57:33,553 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 16:57:33,553 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 299 with the following transitions: [2018-11-18 16:57:33,553 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [26], [29], [36], [37], [38], [39], [43], [45], [46], [49], [52], [53], [54], [55], [70], [73], [74], [75], [79], [85], [89], [93], [96], [99], [101], [104], [107], [109], [112], [127], [128], [129], [131], [134], [136], [139], [142], [145], [148], [151], [153], [154], [155], [156], [157], [158], [160], [165], [168], [169], [171], [174], [176], [178], [179], [182], [184], [186], [187], [188], [194], [198], [204], [239], [245], [249], [250], [253], [254], [255], [256], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [271], [272], [273], [275], [276], [283], [284], [285], [286], [287], [288], [289], [290], [293], [294], [295], [296], [297], [299], [300], [301], [302], [303], [304], [307], [308], [309], [310], [315], [316], [317] [2018-11-18 16:57:33,555 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 16:57:33,555 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 16:57:36,136 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 16:57:36,136 INFO L272 AbstractInterpreter]: Visited 122 different actions 1736 times. Merged at 39 different actions 454 times. Widened at 1 different actions 2 times. Performed 67347 root evaluator evaluations with a maximum evaluation depth of 3. Performed 67347 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 104 fixpoints after 9 different actions. Largest state had 134 variables. [2018-11-18 16:57:36,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:36,137 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 16:57:36,137 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:57:36,138 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fad5acd8-3b89-4e74-a835-fe2c0e724d6e/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 16:57:36,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:36,237 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 16:57:36,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:36,331 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:57:36,448 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 253 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-11-18 16:57:36,448 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 16:57:36,796 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 93 proven. 44 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2018-11-18 16:57:36,822 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 16:57:36,822 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6, 9] total 14 [2018-11-18 16:57:36,823 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:57:36,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 16:57:36,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 16:57:36,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-11-18 16:57:36,823 INFO L87 Difference]: Start difference. First operand 2470 states and 2864 transitions. Second operand 8 states. [2018-11-18 16:57:37,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:37,629 INFO L93 Difference]: Finished difference Result 6003 states and 7551 transitions. [2018-11-18 16:57:37,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 16:57:37,629 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 298 [2018-11-18 16:57:37,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:37,640 INFO L225 Difference]: With dead ends: 6003 [2018-11-18 16:57:37,640 INFO L226 Difference]: Without dead ends: 4012 [2018-11-18 16:57:37,645 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 579 SyntacticMatches, 13 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2018-11-18 16:57:37,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4012 states. [2018-11-18 16:57:37,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4012 to 3703. [2018-11-18 16:57:37,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3703 states. [2018-11-18 16:57:37,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3703 states to 3703 states and 4330 transitions. [2018-11-18 16:57:37,787 INFO L78 Accepts]: Start accepts. Automaton has 3703 states and 4330 transitions. Word has length 298 [2018-11-18 16:57:37,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:37,788 INFO L480 AbstractCegarLoop]: Abstraction has 3703 states and 4330 transitions. [2018-11-18 16:57:37,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 16:57:37,788 INFO L276 IsEmpty]: Start isEmpty. Operand 3703 states and 4330 transitions. [2018-11-18 16:57:37,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2018-11-18 16:57:37,795 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:37,796 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:57:37,796 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:37,796 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:37,796 INFO L82 PathProgramCache]: Analyzing trace with hash -802670781, now seen corresponding path program 2 times [2018-11-18 16:57:37,796 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:57:37,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:37,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:37,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:37,797 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:57:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:37,893 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 85 proven. 21 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2018-11-18 16:57:37,893 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:57:37,893 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 16:57:37,893 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-18 16:57:37,893 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-18 16:57:37,893 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:57:37,894 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fad5acd8-3b89-4e74-a835-fe2c0e724d6e/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 16:57:37,901 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 16:57:37,902 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-18 16:57:38,021 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-18 16:57:38,021 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 16:57:38,027 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:57:38,131 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-11-18 16:57:38,131 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 16:57:38,625 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 96 proven. 2 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2018-11-18 16:57:38,641 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 16:57:38,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 9] total 21 [2018-11-18 16:57:38,641 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:57:38,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 16:57:38,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 16:57:38,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2018-11-18 16:57:38,642 INFO L87 Difference]: Start difference. First operand 3703 states and 4330 transitions. Second operand 8 states. [2018-11-18 16:57:38,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:38,942 INFO L93 Difference]: Finished difference Result 4821 states and 5638 transitions. [2018-11-18 16:57:38,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 16:57:38,943 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 298 [2018-11-18 16:57:38,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:38,944 INFO L225 Difference]: With dead ends: 4821 [2018-11-18 16:57:38,945 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 16:57:38,950 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 580 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2018-11-18 16:57:38,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 16:57:38,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 16:57:38,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 16:57:38,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 16:57:38,951 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 298 [2018-11-18 16:57:38,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:38,951 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:57:38,951 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 16:57:38,951 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 16:57:38,952 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 16:57:38,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 16:57:39,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,056 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,094 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,096 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,157 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,190 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,234 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,319 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,381 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,383 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,389 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,394 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,396 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,398 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,448 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,452 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,461 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,487 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,489 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,654 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,684 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,688 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,691 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,695 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,699 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,745 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,796 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,806 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,867 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,870 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,884 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,901 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,952 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,966 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:39,974 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:40,022 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:40,027 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:40,057 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:40,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:40,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:40,118 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:40,187 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:40,218 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:40,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:40,279 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:40,287 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:40,315 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:40,641 WARN L180 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 29 [2018-11-18 16:57:40,779 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 1 [2018-11-18 16:57:41,540 WARN L180 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 72 [2018-11-18 16:57:41,840 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 36 [2018-11-18 16:57:42,259 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 29 [2018-11-18 16:57:42,881 WARN L180 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 56 [2018-11-18 16:57:43,140 WARN L180 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 32 [2018-11-18 16:57:43,411 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 31 [2018-11-18 16:57:43,639 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 31 [2018-11-18 16:57:44,012 WARN L180 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 49 [2018-11-18 16:57:44,272 WARN L180 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 41 [2018-11-18 16:57:44,452 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 27 [2018-11-18 16:57:44,654 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 27 [2018-11-18 16:57:44,805 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 30 [2018-11-18 16:57:45,572 WARN L180 SmtUtils]: Spent 762.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 60 [2018-11-18 16:57:45,853 WARN L180 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 37 [2018-11-18 16:57:46,063 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 35 [2018-11-18 16:57:46,371 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 31 [2018-11-18 16:57:46,641 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 29 [2018-11-18 16:57:46,865 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 27 [2018-11-18 16:57:47,110 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 34 [2018-11-18 16:57:47,249 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 36 [2018-11-18 16:57:47,483 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 27 [2018-11-18 16:57:47,586 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 902 908) the Hoare annotation is: true [2018-11-18 16:57:47,586 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 902 908) no Hoare annotation was computed. [2018-11-18 16:57:47,586 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 909 917) no Hoare annotation was computed. [2018-11-18 16:57:47,586 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 909 917) the Hoare annotation is: true [2018-11-18 16:57:47,586 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 909 917) no Hoare annotation was computed. [2018-11-18 16:57:47,586 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 497 519) the Hoare annotation is: (or (and (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 16:57:47,586 INFO L421 ceAbstractionStarter]: At program point L509(line 509) the Hoare annotation is: (or (and (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~waterLevel~0) (= main_~tmp~3 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 16:57:47,586 INFO L421 ceAbstractionStarter]: At program point L509-1(line 509) the Hoare annotation is: (or (and (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~waterLevel~0) (= main_~tmp~3 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 16:57:47,587 INFO L425 ceAbstractionStarter]: For program point L507(lines 507 514) no Hoare annotation was computed. [2018-11-18 16:57:47,587 INFO L425 ceAbstractionStarter]: For program point L507-1(lines 507 514) no Hoare annotation was computed. [2018-11-18 16:57:47,587 INFO L425 ceAbstractionStarter]: For program point L505(line 505) no Hoare annotation was computed. [2018-11-18 16:57:47,587 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 497 519) no Hoare annotation was computed. [2018-11-18 16:57:47,587 INFO L421 ceAbstractionStarter]: At program point L504(line 504) the Hoare annotation is: (or (and (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 16:57:47,587 INFO L421 ceAbstractionStarter]: At program point L503(line 503) the Hoare annotation is: (or (and (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 16:57:47,587 INFO L421 ceAbstractionStarter]: At program point L503-1(line 503) the Hoare annotation is: (or (and (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 16:57:47,587 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 497 519) no Hoare annotation was computed. [2018-11-18 16:57:47,587 INFO L421 ceAbstractionStarter]: At program point L574(line 574) the Hoare annotation is: (let ((.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (let ((.cse0 (and (or (not (= ~methaneLevelCritical~0 1)) .cse3) (or .cse3 .cse4))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse2) (or .cse2 (or (not (= 1 |old(~pumpRunning~0)|)) .cse3) .cse4) (or (< 1 ~waterLevel~0) .cse0 .cse1 .cse2)))) [2018-11-18 16:57:47,587 INFO L425 ceAbstractionStarter]: For program point L572(lines 572 580) no Hoare annotation was computed. [2018-11-18 16:57:47,587 INFO L421 ceAbstractionStarter]: At program point L570(line 570) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (or (not (= 1 |old(~pumpRunning~0)|)) .cse1) .cse2) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 (let ((.cse3 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse3 .cse1 .cse2) (or (not (= ~methaneLevelCritical~0 1)) .cse3 .cse1)))))) [2018-11-18 16:57:47,587 INFO L425 ceAbstractionStarter]: For program point L570-1(line 570) no Hoare annotation was computed. [2018-11-18 16:57:47,587 INFO L425 ceAbstractionStarter]: For program point L568(lines 568 585) no Hoare annotation was computed. [2018-11-18 16:57:47,587 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 564 588) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 (or (not (= 1 |old(~pumpRunning~0)|)) .cse2) .cse3) (or .cse0 .cse1 (let ((.cse4 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse4 .cse2 .cse3) (or (not (= ~methaneLevelCritical~0 1)) .cse4 .cse2)))))) [2018-11-18 16:57:47,587 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 564 588) no Hoare annotation was computed. [2018-11-18 16:57:47,587 INFO L421 ceAbstractionStarter]: At program point L583(line 583) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methAndRunningLastTime~0 0))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse1 .cse2 .cse3) (or (not (= ~methaneLevelCritical~0 1)) .cse1 .cse2)))) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 (or (not (= 1 |old(~pumpRunning~0)|)) .cse2) .cse3))) [2018-11-18 16:57:47,587 INFO L425 ceAbstractionStarter]: For program point L583-1(lines 564 588) no Hoare annotation was computed. [2018-11-18 16:57:47,588 INFO L421 ceAbstractionStarter]: At program point L578(line 578) the Hoare annotation is: (let ((.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (or (and (or (not (= ~methaneLevelCritical~0 1)) .cse0) (or .cse0 .cse1)) (not (= 0 |old(~pumpRunning~0)|)) .cse2) (and (= 0 processEnvironment__wrappee__methaneQuery_~tmp~4) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or .cse2 (or (not (= 1 |old(~pumpRunning~0)|)) .cse0) .cse1))) [2018-11-18 16:57:47,588 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 659 667) no Hoare annotation was computed. [2018-11-18 16:57:47,588 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 659 667) the Hoare annotation is: true [2018-11-18 16:57:47,588 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 659 667) no Hoare annotation was computed. [2018-11-18 16:57:47,588 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 895 901) no Hoare annotation was computed. [2018-11-18 16:57:47,588 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 895 901) the Hoare annotation is: true [2018-11-18 16:57:47,588 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 483 493) the Hoare annotation is: (or (and (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 16:57:47,588 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 483 493) no Hoare annotation was computed. [2018-11-18 16:57:47,588 INFO L421 ceAbstractionStarter]: At program point L488(line 488) the Hoare annotation is: (or (and (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 16:57:47,588 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 483 493) no Hoare annotation was computed. [2018-11-18 16:57:47,588 INFO L428 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 648 658) the Hoare annotation is: true [2018-11-18 16:57:47,588 INFO L428 ceAbstractionStarter]: At program point L653(line 653) the Hoare annotation is: true [2018-11-18 16:57:47,588 INFO L425 ceAbstractionStarter]: For program point L653-1(line 653) no Hoare annotation was computed. [2018-11-18 16:57:47,588 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 648 658) no Hoare annotation was computed. [2018-11-18 16:57:47,588 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 648 658) no Hoare annotation was computed. [2018-11-18 16:57:47,589 INFO L421 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 640 647) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= ~systemActive~0 1)) (let ((.cse0 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1)))) [2018-11-18 16:57:47,589 INFO L425 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 640 647) no Hoare annotation was computed. [2018-11-18 16:57:47,589 INFO L425 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 640 647) no Hoare annotation was computed. [2018-11-18 16:57:47,589 INFO L425 ceAbstractionStarter]: For program point L873(lines 873 879) no Hoare annotation was computed. [2018-11-18 16:57:47,589 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 869 882) no Hoare annotation was computed. [2018-11-18 16:57:47,589 INFO L428 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 869 882) the Hoare annotation is: true [2018-11-18 16:57:47,589 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 869 882) no Hoare annotation was computed. [2018-11-18 16:57:47,589 INFO L421 ceAbstractionStarter]: At program point L609(line 609) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (let ((.cse1 (not (= 1 |old(~pumpRunning~0)|)))) (and (or .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse2)))) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 (let ((.cse5 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse5 .cse2 .cse3) (or .cse4 .cse5 .cse2)))))) [2018-11-18 16:57:47,589 INFO L425 ceAbstractionStarter]: For program point L609-1(lines 590 614) no Hoare annotation was computed. [2018-11-18 16:57:47,589 INFO L421 ceAbstractionStarter]: At program point L604(line 604) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (let ((.cse0 (not (= ~systemActive~0 1))) (.cse5 (let ((.cse6 (not (= 1 |old(~pumpRunning~0)|)))) (and (or .cse6 .cse2 .cse3) (or .cse4 .cse6 .cse2))))) (and (or .cse0 (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse2)))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse5) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse5)))) [2018-11-18 16:57:47,589 INFO L421 ceAbstractionStarter]: At program point L600(line 600) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (let ((.cse0 (not (= ~systemActive~0 1))) (.cse5 (let ((.cse6 (not (= 1 |old(~pumpRunning~0)|)))) (and (or .cse6 .cse2 .cse3) (or .cse4 .cse6 .cse2))))) (and (or .cse0 (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse2)))) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse5) (or (< ~methaneLevelCritical~0 1) (<= ~methaneLevelCritical~0 processEnvironment_~tmp~5) .cse0 .cse5)))) [2018-11-18 16:57:47,589 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 590 614) no Hoare annotation was computed. [2018-11-18 16:57:47,589 INFO L425 ceAbstractionStarter]: For program point L598(lines 598 606) no Hoare annotation was computed. [2018-11-18 16:57:47,589 INFO L421 ceAbstractionStarter]: At program point L596(line 596) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse2)))) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 (let ((.cse5 (not (= 1 |old(~pumpRunning~0)|)))) (and (or .cse5 .cse2 .cse3) (or .cse4 .cse5 .cse2)))))) [2018-11-18 16:57:47,590 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 590 614) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse2 .cse3 .cse4) (or .cse5 .cse2 .cse3)))) (or .cse0 .cse1 (let ((.cse6 (not (= 1 |old(~pumpRunning~0)|)))) (and (or .cse6 .cse3 .cse4) (or .cse5 .cse6 .cse3)))))) [2018-11-18 16:57:47,590 INFO L425 ceAbstractionStarter]: For program point L596-1(line 596) no Hoare annotation was computed. [2018-11-18 16:57:47,590 INFO L425 ceAbstractionStarter]: For program point L594(lines 594 611) no Hoare annotation was computed. [2018-11-18 16:57:47,590 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 556 562) no Hoare annotation was computed. [2018-11-18 16:57:47,590 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 556 562) the Hoare annotation is: true [2018-11-18 16:57:47,590 INFO L421 ceAbstractionStarter]: At program point L770-2(lines 764 775) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse3 (= ~methaneLevelCritical~0 1)) (.cse4 (= test_~splverifierCounter~0 0))) (or (and (let ((.cse2 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse2 .cse3))) .cse4) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0))) (and (let ((.cse5 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 .cse5) (and .cse0 .cse3 .cse5))) .cse4) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 16:57:47,590 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 724 787) the Hoare annotation is: (or (and (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 16:57:47,590 INFO L425 ceAbstractionStarter]: For program point L735(lines 734 779) no Hoare annotation was computed. [2018-11-18 16:57:47,590 INFO L425 ceAbstractionStarter]: For program point L764(lines 764 775) no Hoare annotation was computed. [2018-11-18 16:57:47,590 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 724 787) no Hoare annotation was computed. [2018-11-18 16:57:47,590 INFO L421 ceAbstractionStarter]: At program point L756(line 756) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0))) (and (let ((.cse1 (= ~pumpRunning~0 0))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1) (and .cse0 (= ~methaneLevelCritical~0 1) .cse1))) .cse2) (and .cse0 (= 0 ~methaneLevelCritical~0) (= ~pumpRunning~0 1) .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 16:57:47,590 INFO L425 ceAbstractionStarter]: For program point L754(lines 754 760) no Hoare annotation was computed. [2018-11-18 16:57:47,590 INFO L425 ceAbstractionStarter]: For program point L754-1(lines 754 760) no Hoare annotation was computed. [2018-11-18 16:57:47,590 INFO L421 ceAbstractionStarter]: At program point L746(line 746) the Hoare annotation is: (let ((.cse1 (= test_~splverifierCounter~0 0)) (.cse0 (= ~methAndRunningLastTime~0 0))) (or (and (= 0 ~methaneLevelCritical~0) (and .cse0 (= ~pumpRunning~0 1)) .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0))) (and .cse1 (let ((.cse2 (= ~pumpRunning~0 0))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse2) (and .cse0 (= ~methaneLevelCritical~0 1) .cse2)))) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 16:57:47,590 INFO L421 ceAbstractionStarter]: At program point L777(lines 734 779) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~methaneLevelCritical~0) (and .cse0 (= ~pumpRunning~0 1)) .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0))) (and (let ((.cse2 (= ~pumpRunning~0 0))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse2) (and .cse0 (= ~methaneLevelCritical~0 1) .cse2))) .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 16:57:47,590 INFO L425 ceAbstractionStarter]: For program point L744(lines 744 750) no Hoare annotation was computed. [2018-11-18 16:57:47,590 INFO L425 ceAbstractionStarter]: For program point L744-1(lines 744 750) no Hoare annotation was computed. [2018-11-18 16:57:47,590 INFO L425 ceAbstractionStarter]: For program point L736(lines 736 740) no Hoare annotation was computed. [2018-11-18 16:57:47,591 INFO L425 ceAbstractionStarter]: For program point L734-1(lines 734 779) no Hoare annotation was computed. [2018-11-18 16:57:47,591 INFO L421 ceAbstractionStarter]: At program point L780(lines 733 781) the Hoare annotation is: (or (not (= |old(~waterLevel~0)| 1)) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 16:57:47,591 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 724 787) no Hoare annotation was computed. [2018-11-18 16:57:47,591 INFO L425 ceAbstractionStarter]: For program point L770(lines 770 774) no Hoare annotation was computed. [2018-11-18 16:57:47,591 INFO L421 ceAbstractionStarter]: At program point activatePump__wrappee__highWaterSensorENTRY(lines 615 622) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (or (not (= ~methAndRunningLastTime~0 0)) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 16:57:47,591 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorEXIT(lines 615 622) no Hoare annotation was computed. [2018-11-18 16:57:47,591 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorFINAL(lines 615 622) no Hoare annotation was computed. [2018-11-18 16:57:47,591 INFO L421 ceAbstractionStarter]: At program point __utac_acc__Specification2_spec__2ENTRY(lines 928 956) the Hoare annotation is: (let ((.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (or (not (= 1 ~pumpRunning~0)) .cse2) .cse3) (or (and (or (not (= ~methaneLevelCritical~0 1)) .cse2) (or .cse2 .cse3)) (not (= 0 ~pumpRunning~0)) .cse0 .cse1))) [2018-11-18 16:57:47,591 INFO L421 ceAbstractionStarter]: At program point L943(line 943) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 (let ((.cse1 (not (= 0 ~pumpRunning~0)))) (and (or .cse1 .cse2 .cse3) (or (not (= ~methaneLevelCritical~0 1)) .cse1 .cse2)))) (or .cse0 (or (not (= 1 ~pumpRunning~0)) .cse2) .cse3))) [2018-11-18 16:57:47,591 INFO L425 ceAbstractionStarter]: For program point L941(lines 941 947) no Hoare annotation was computed. [2018-11-18 16:57:47,591 INFO L425 ceAbstractionStarter]: For program point L940(lines 940 950) no Hoare annotation was computed. [2018-11-18 16:57:47,591 INFO L421 ceAbstractionStarter]: At program point L938(line 938) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (let ((.cse0 (= ~methaneLevelCritical~0 1))) (or (and (<= ~methaneLevelCritical~0 __utac_acc__Specification2_spec__2_~tmp~9) (and (= ~methAndRunningLastTime~0 0) .cse0)) .cse1 (let ((.cse2 (not (= 0 ~pumpRunning~0)))) (and (or .cse2 .cse3 .cse4) (or (not .cse0) .cse2 .cse3))))) (or .cse1 (or (not (= 1 ~pumpRunning~0)) .cse3) .cse4))) [2018-11-18 16:57:47,592 INFO L425 ceAbstractionStarter]: For program point L938-1(line 938) no Hoare annotation was computed. [2018-11-18 16:57:47,592 INFO L425 ceAbstractionStarter]: For program point L936(lines 936 953) no Hoare annotation was computed. [2018-11-18 16:57:47,592 INFO L425 ceAbstractionStarter]: For program point L936-1(lines 928 956) no Hoare annotation was computed. [2018-11-18 16:57:47,592 INFO L421 ceAbstractionStarter]: At program point L934(line 934) the Hoare annotation is: (let ((.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (or (not (= 1 ~pumpRunning~0)) .cse2) .cse3) (or (and (or (not (= ~methaneLevelCritical~0 1)) .cse2) (or .cse2 .cse3)) (not (= 0 ~pumpRunning~0)) .cse0 .cse1))) [2018-11-18 16:57:47,592 INFO L425 ceAbstractionStarter]: For program point L934-1(line 934) no Hoare annotation was computed. [2018-11-18 16:57:47,592 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__2EXIT(lines 928 956) no Hoare annotation was computed. [2018-11-18 16:57:47,592 INFO L421 ceAbstractionStarter]: At program point __utac_acc__Specification2_spec__1ENTRY(lines 920 927) the Hoare annotation is: (or (= ~methAndRunningLastTime~0 0) (not (= ~waterLevel~0 1)) (or (not (= 0 ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= ~methaneLevelCritical~0 0)))) [2018-11-18 16:57:47,592 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__1FINAL(lines 920 927) no Hoare annotation was computed. [2018-11-18 16:57:47,592 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__1EXIT(lines 920 927) no Hoare annotation was computed. [2018-11-18 16:57:47,592 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:57:47,592 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 16:57:47,592 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:57:47,592 INFO L425 ceAbstractionStarter]: For program point activatePumpEXIT(lines 623 639) no Hoare annotation was computed. [2018-11-18 16:57:47,592 INFO L421 ceAbstractionStarter]: At program point L634(line 634) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 2)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (let ((.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse3 .cse4 (not (= ~methaneLevelCritical~0 0))) (or (not (= ~methaneLevelCritical~0 1)) .cse3 .cse4))))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1 .cse2))) [2018-11-18 16:57:47,592 INFO L425 ceAbstractionStarter]: For program point L634-1(lines 623 639) no Hoare annotation was computed. [2018-11-18 16:57:47,593 INFO L421 ceAbstractionStarter]: At program point activatePumpENTRY(lines 623 639) the Hoare annotation is: (or (let ((.cse0 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-18 16:57:47,593 INFO L425 ceAbstractionStarter]: For program point L630(lines 630 636) no Hoare annotation was computed. [2018-11-18 16:57:47,593 INFO L421 ceAbstractionStarter]: At program point L628(line 628) the Hoare annotation is: (or (let ((.cse0 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-18 16:57:47,593 INFO L425 ceAbstractionStarter]: For program point L628-1(line 628) no Hoare annotation was computed. [2018-11-18 16:57:47,593 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 704 722) no Hoare annotation was computed. [2018-11-18 16:57:47,593 INFO L425 ceAbstractionStarter]: For program point L713(lines 713 717) no Hoare annotation was computed. [2018-11-18 16:57:47,593 INFO L428 ceAbstractionStarter]: At program point L711(line 711) the Hoare annotation is: true [2018-11-18 16:57:47,593 INFO L425 ceAbstractionStarter]: For program point L713-2(lines 713 717) no Hoare annotation was computed. [2018-11-18 16:57:47,593 INFO L425 ceAbstractionStarter]: For program point L711-1(line 711) no Hoare annotation was computed. [2018-11-18 16:57:47,593 INFO L428 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 704 722) the Hoare annotation is: true [2018-11-18 16:57:47,593 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 704 722) no Hoare annotation was computed. [2018-11-18 16:57:47,593 INFO L421 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 816 827) the Hoare annotation is: (let ((.cse3 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (let ((.cse5 (not (= 0 ~pumpRunning~0)))) (and (or .cse5 .cse4 .cse3) (or (not (= |old(~methaneLevelCritical~0)| 1)) .cse5 .cse4))))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (or .cse1 (or (not (= 1 ~pumpRunning~0)) .cse4) .cse3)) (or (< |old(~methaneLevelCritical~0)| 1) (= ~methaneLevelCritical~0 1) .cse1 .cse2)))) [2018-11-18 16:57:47,593 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 816 827) no Hoare annotation was computed. [2018-11-18 16:57:47,593 INFO L425 ceAbstractionStarter]: For program point L820-1(lines 816 827) no Hoare annotation was computed. [2018-11-18 16:57:47,593 INFO L428 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 828 836) the Hoare annotation is: true [2018-11-18 16:57:47,593 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 828 836) no Hoare annotation was computed. [2018-11-18 16:57:47,593 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 828 836) no Hoare annotation was computed. [2018-11-18 16:57:47,594 INFO L421 ceAbstractionStarter]: At program point L545(line 545) the Hoare annotation is: (let ((.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not (= ~systemActive~0 1))) (.cse9 (not (= ~methaneLevelCritical~0 0))) (.cse11 (not (= ~methaneLevelCritical~0 1))) (.cse8 (not (= |old(~methAndRunningLastTime~0)| 0)))) (let ((.cse2 (or .cse4 (let ((.cse12 (not (= 1 |old(~pumpRunning~0)|)))) (and (or .cse12 .cse8 .cse9) (or .cse11 .cse12 .cse8))))) (.cse0 (< 1 |old(~waterLevel~0)|)) (.cse1 (<= ~waterLevel~0 1)) (.cse5 (and (or .cse6 .cse8 .cse9) (or .cse11 .cse6 .cse8))) (.cse3 (= ~methAndRunningLastTime~0 0)) (.cse7 (= ~waterLevel~0 2)) (.cse10 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2) (or (<= 1 ~waterLevel~0) (or .cse2 (< |old(~waterLevel~0)| 2))) (or .cse2 (and .cse3 (= ~pumpRunning~0 1))) (or (= |old(~waterLevel~0)| 1) (not (= ~waterLevel~0 1)) .cse4 .cse5) (or .cse6 .cse4 .cse7 .cse8 .cse9 .cse10) (or .cse0 .cse1 .cse4 .cse5) (or (or .cse4 .cse5) (and (and .cse3 (= ~pumpRunning~0 0)) (<= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse7 .cse11 .cse6 .cse4 .cse8 .cse10)))) [2018-11-18 16:57:47,594 INFO L421 ceAbstractionStarter]: At program point L543(lines 543 549) the Hoare annotation is: (let ((.cse17 (= ~methaneLevelCritical~0 1)) (.cse15 (= ~methaneLevelCritical~0 0))) (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse14 (= ~methAndRunningLastTime~0 0)) (.cse2 (not (= ~systemActive~0 1))) (.cse4 (not .cse15)) (.cse12 (not .cse17)) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0)))) (let ((.cse1 (= ~waterLevel~0 2)) (.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse6 (or .cse2 (let ((.cse19 (not (= 1 |old(~pumpRunning~0)|)))) (and (or .cse19 .cse3 .cse4) (or .cse12 .cse19 .cse3))))) (.cse8 (let ((.cse18 (= ~pumpRunning~0 1))) (or (and .cse14 .cse15 .cse18) (and .cse14 .cse18 .cse17)))) (.cse10 (< 1 |old(~waterLevel~0)|)) (.cse9 (let ((.cse16 (= ~pumpRunning~0 0))) (or (and .cse14 .cse15 .cse16) (and .cse14 .cse17 .cse16)))) (.cse11 (<= ~waterLevel~0 1)) (.cse7 (and (or .cse0 .cse3 .cse4) (or .cse12 .cse0 .cse3)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or (<= 1 ~waterLevel~0) (or .cse6 (< |old(~waterLevel~0)| 2))) (or (= |old(~waterLevel~0)| 1) (not (= ~waterLevel~0 1)) .cse2 .cse7) (or .cse6 .cse8 .cse9) (or .cse10 .cse6 .cse11) (or .cse1 .cse12 .cse0 .cse2 .cse3 .cse5) (or (or .cse12 .cse3) .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse2) (or (< ~methaneLevelCritical~0 1) .cse6 .cse9) (let ((.cse13 (<= |old(~waterLevel~0)| ~waterLevel~0))) (or (and .cse8 .cse13) (or .cse2 .cse7) (and .cse9 .cse13))) (or .cse10 (and .cse9 .cse11) .cse2 .cse7))))) [2018-11-18 16:57:47,594 INFO L421 ceAbstractionStarter]: At program point L538(line 538) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0)))) (let ((.cse5 (or .cse0 (let ((.cse6 (not (= 1 |old(~pumpRunning~0)|)))) (and (or .cse6 .cse2 .cse3) (or .cse4 .cse6 .cse2)))))) (and (or .cse0 (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse2)))) (or (< 1 |old(~waterLevel~0)|) .cse5 (<= ~waterLevel~0 1)) (or .cse5 (and (and (= ~methAndRunningLastTime~0 0) (= ~pumpRunning~0 1)) (<= |old(~waterLevel~0)| ~waterLevel~0)))))) [2018-11-18 16:57:47,594 INFO L425 ceAbstractionStarter]: For program point L536(lines 535 554) no Hoare annotation was computed. [2018-11-18 16:57:47,594 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 532 555) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse12 (not (= ~methaneLevelCritical~0 1))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0)))) (let ((.cse7 (< 1 |old(~waterLevel~0)|)) (.cse8 (<= ~waterLevel~0 1)) (.cse1 (and (or .cse2 .cse4 .cse5) (or .cse12 .cse2 .cse4))) (.cse3 (= ~waterLevel~0 2)) (.cse6 (not (= |old(~waterLevel~0)| 2))) (.cse9 (or .cse0 (let ((.cse13 (not (= 1 |old(~pumpRunning~0)|)))) (and (or .cse13 .cse4 .cse5) (or .cse12 .cse13 .cse4))))) (.cse10 (= ~methAndRunningLastTime~0 0)) (.cse11 (<= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (= |old(~waterLevel~0)| 1) (not (= ~waterLevel~0 1)) .cse0 .cse1) (or .cse2 .cse0 .cse3 .cse4 .cse5 .cse6) (or .cse7 .cse8 .cse0 .cse1) (or .cse7 .cse9 .cse8) (or (or .cse0 .cse1) (and (and .cse10 (= ~pumpRunning~0 0)) .cse11)) (or .cse3 .cse12 .cse2 .cse0 .cse4 .cse6) (or .cse9 (and (and .cse10 (= ~pumpRunning~0 1)) .cse11))))) [2018-11-18 16:57:47,594 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 532 555) no Hoare annotation was computed. [2018-11-18 16:57:47,594 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 532 555) no Hoare annotation was computed. [2018-11-18 16:57:47,594 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 417 446) no Hoare annotation was computed. [2018-11-18 16:57:47,594 INFO L428 ceAbstractionStarter]: At program point L442(lines 417 446) the Hoare annotation is: true [2018-11-18 16:57:47,594 INFO L425 ceAbstractionStarter]: For program point L438(line 438) no Hoare annotation was computed. [2018-11-18 16:57:47,594 INFO L425 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-11-18 16:57:47,594 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 417 446) the Hoare annotation is: true [2018-11-18 16:57:47,594 INFO L425 ceAbstractionStarter]: For program point L431(lines 431 435) no Hoare annotation was computed. [2018-11-18 16:57:47,594 INFO L428 ceAbstractionStarter]: At program point L431-1(lines 431 435) the Hoare annotation is: true [2018-11-18 16:57:47,594 INFO L425 ceAbstractionStarter]: For program point L427-1(lines 427 441) no Hoare annotation was computed. [2018-11-18 16:57:47,594 INFO L428 ceAbstractionStarter]: At program point L427-3(lines 427 441) the Hoare annotation is: true [2018-11-18 16:57:47,594 INFO L428 ceAbstractionStarter]: At program point L423(line 423) the Hoare annotation is: true [2018-11-18 16:57:47,595 INFO L425 ceAbstractionStarter]: For program point L423-1(line 423) no Hoare annotation was computed. [2018-11-18 16:57:47,595 INFO L421 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 792 803) the Hoare annotation is: (let ((.cse0 (let ((.cse2 (not (= 1 ~pumpRunning~0))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (not (= ~methaneLevelCritical~0 1)) .cse2 .cse3)))) (.cse1 (or (not (= ~systemActive~0 1)) (= 0 ~pumpRunning~0)))) (and (or (< 1 |old(~waterLevel~0)|) (<= ~waterLevel~0 1) .cse0 .cse1) (or .cse0 .cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)))) [2018-11-18 16:57:47,595 INFO L425 ceAbstractionStarter]: For program point L796-1(lines 792 803) no Hoare annotation was computed. [2018-11-18 16:57:47,595 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 792 803) no Hoare annotation was computed. [2018-11-18 16:57:47,595 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 474 480) no Hoare annotation was computed. [2018-11-18 16:57:47,595 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 474 480) the Hoare annotation is: true [2018-11-18 16:57:47,595 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:57:47,595 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~methAndRunningLastTime~0 0) (<= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (<= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-11-18 16:57:47,595 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:57:47,595 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:57:47,595 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 804 815) no Hoare annotation was computed. [2018-11-18 16:57:47,595 INFO L425 ceAbstractionStarter]: For program point L808-1(lines 804 815) no Hoare annotation was computed. [2018-11-18 16:57:47,595 INFO L421 ceAbstractionStarter]: At program point waterRiseENTRY(lines 804 815) the Hoare annotation is: (let ((.cse12 (not (= 1 ~pumpRunning~0))) (.cse6 (not (= ~systemActive~0 1))) (.cse15 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse5 (not (= 0 ~pumpRunning~0))) (.cse7 (not (= ~methAndRunningLastTime~0 0))) (.cse8 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (< 1 |old(~waterLevel~0)|)) (.cse3 (and (<= ~waterLevel~0 1) .cse8)) (.cse2 (and (or .cse5 .cse7 .cse15) (or .cse4 .cse5 .cse7))) (.cse9 (or .cse6 .cse15)) (.cse10 (and (or .cse12 .cse7 .cse15) (or .cse4 .cse12 .cse7))) (.cse11 (or .cse5 .cse6 .cse15)) (.cse14 (= ~waterLevel~0 2)) (.cse1 (or .cse5 .cse6)) (.cse13 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (or .cse4 .cse5 .cse6 .cse7) .cse8) (or .cse0 .cse9 .cse10 .cse3) (or .cse11 .cse8 .cse2) (or (or .cse12 .cse7 .cse13) .cse9 .cse14) (or .cse9 .cse10 .cse8) (or .cse14 .cse11 .cse7 .cse13) (or .cse4 .cse14 .cse1 .cse7 .cse13)))) [2018-11-18 16:57:47,595 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 406 413) no Hoare annotation was computed. [2018-11-18 16:57:47,595 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 406 413) the Hoare annotation is: true [2018-11-18 16:57:47,596 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 410) no Hoare annotation was computed. [2018-11-18 16:57:47,596 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 406 413) no Hoare annotation was computed. [2018-11-18 16:57:47,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:57:47 BoogieIcfgContainer [2018-11-18 16:57:47,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:57:47,608 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:57:47,608 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:57:47,608 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:57:47,608 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:57:11" (3/4) ... [2018-11-18 16:57:47,610 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 16:57:47,614 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-18 16:57:47,614 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-18 16:57:47,614 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 16:57:47,614 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-11-18 16:57:47,614 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-18 16:57:47,614 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-18 16:57:47,614 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-18 16:57:47,614 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-18 16:57:47,615 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-18 16:57:47,615 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-18 16:57:47,615 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-18 16:57:47,615 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 16:57:47,615 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-18 16:57:47,615 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__highWaterSensor [2018-11-18 16:57:47,615 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification2_spec__2 [2018-11-18 16:57:47,615 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification2_spec__1 [2018-11-18 16:57:47,615 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 16:57:47,615 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-18 16:57:47,615 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-18 16:57:47,615 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 16:57:47,615 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-18 16:57:47,615 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 16:57:47,615 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 16:57:47,616 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-18 16:57:47,616 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-18 16:57:47,616 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 16:57:47,616 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-18 16:57:47,622 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2018-11-18 16:57:47,623 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 16:57:47,623 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 16:57:47,647 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0 == methaneLevelCritical && methAndRunningLastTime == 0 && pumpRunning == 1) && splverifierCounter == 0) || (!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(methAndRunningLastTime) == 0)) || ((((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && pumpRunning == 0) || ((methAndRunningLastTime == 0 && methaneLevelCritical == 1) && pumpRunning == 0)) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 16:57:47,647 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(waterLevel) == 1) || ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 16:57:47,678 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fad5acd8-3b89-4e74-a835-fe2c0e724d6e/bin-2019/utaipan/witness.graphml [2018-11-18 16:57:47,678 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:57:47,679 INFO L168 Benchmark]: Toolchain (without parser) took 36585.50 ms. Allocated memory was 1.0 GB in the beginning and 3.4 GB in the end (delta: 2.4 GB). Free memory was 957.6 MB in the beginning and 2.3 GB in the end (delta: -1.4 GB). Peak memory consumption was 983.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:47,680 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:57:47,680 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -190.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:47,680 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:57:47,680 INFO L168 Benchmark]: Boogie Preprocessor took 25.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:47,680 INFO L168 Benchmark]: RCFGBuilder took 504.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 63.7 MB). Peak memory consumption was 63.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:47,681 INFO L168 Benchmark]: TraceAbstraction took 35613.57 ms. Allocated memory was 1.2 GB in the beginning and 3.4 GB in the end (delta: 2.2 GB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.6 GB. Max. memory is 11.5 GB. [2018-11-18 16:57:47,681 INFO L168 Benchmark]: Witness Printer took 70.79 ms. Allocated memory is still 3.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 136.8 kB). Peak memory consumption was 136.8 kB. Max. memory is 11.5 GB. [2018-11-18 16:57:47,683 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 346.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -190.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 504.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 63.7 MB). Peak memory consumption was 63.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 35613.57 ms. Allocated memory was 1.2 GB in the beginning and 3.4 GB in the end (delta: 2.2 GB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.6 GB. Max. memory is 11.5 GB. * Witness Printer took 70.79 ms. Allocated memory is still 3.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 136.8 kB). Peak memory consumption was 136.8 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 410]: 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: 734]: Loop Invariant Derived loop invariant: (((((0 == methaneLevelCritical && methAndRunningLastTime == 0 && pumpRunning == 1) && splverifierCounter == 0) || (!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(methAndRunningLastTime) == 0)) || ((((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && pumpRunning == 0) || ((methAndRunningLastTime == 0 && methaneLevelCritical == 1) && pumpRunning == 0)) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 427]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 733]: Loop Invariant Derived loop invariant: !(\old(waterLevel) == 1) || ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 417]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 150 locations, 1 error locations. SAFE Result, 35.5s OverallTime, 15 OverallIterations, 6 TraceHistogramMax, 12.8s AutomataDifference, 0.0s DeadEndRemovalTime, 8.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 3119 SDtfs, 3190 SDslu, 9338 SDs, 0 SdLazy, 5218 SolverSat, 1093 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 2653 GetRequests, 2444 SyntacticMatches, 32 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 653 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3703occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.6s AbstIntTime, 5 AbstIntIterations, 2 AbstIntStrong, 0.9969238748398072 AbsIntWeakeningRatio, 0.8888888888888888 AbsIntAvgWeakeningVarsNumRemoved, 49.17407407407408 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 15 MinimizatonAttempts, 584 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 62 LocationsWithAnnotation, 6154 PreInvPairs, 6417 NumberOfFragments, 3410 HoareAnnotationTreeSize, 6154 FomulaSimplifications, 12952 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 62 FomulaSimplificationsInter, 83967 FormulaSimplificationTreeSizeReductionInter, 7.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 3197 NumberOfCodeBlocks, 3056 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 4289 ConstructedInterpolants, 0 QuantifiedInterpolants, 1431795 SizeOfPredicates, 12 NumberOfNonLiveVariables, 4088 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 23 InterpolantComputations, 13 PerfectInterpolantSequences, 3523/3719 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...