./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product62_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c3597560-dbca-4e5a-b5a1-ec2abf312612/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c3597560-dbca-4e5a-b5a1-ec2abf312612/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c3597560-dbca-4e5a-b5a1-ec2abf312612/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c3597560-dbca-4e5a-b5a1-ec2abf312612/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product62_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c3597560-dbca-4e5a-b5a1-ec2abf312612/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c3597560-dbca-4e5a-b5a1-ec2abf312612/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 3c089be7b4887d2975165f6135c093492cb2095b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 18:16:18,451 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 18:16:18,452 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 18:16:18,460 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 18:16:18,460 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 18:16:18,461 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 18:16:18,462 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 18:16:18,463 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 18:16:18,464 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 18:16:18,465 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 18:16:18,465 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 18:16:18,466 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 18:16:18,466 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 18:16:18,467 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 18:16:18,467 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 18:16:18,468 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 18:16:18,468 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 18:16:18,469 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 18:16:18,470 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 18:16:18,471 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 18:16:18,471 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 18:16:18,472 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 18:16:18,474 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 18:16:18,474 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 18:16:18,474 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 18:16:18,475 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 18:16:18,475 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 18:16:18,476 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 18:16:18,476 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 18:16:18,477 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 18:16:18,477 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 18:16:18,477 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 18:16:18,478 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 18:16:18,478 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 18:16:18,478 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 18:16:18,479 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 18:16:18,479 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c3597560-dbca-4e5a-b5a1-ec2abf312612/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 18:16:18,489 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 18:16:18,489 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 18:16:18,490 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 18:16:18,490 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 18:16:18,490 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 18:16:18,490 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 18:16:18,490 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 18:16:18,490 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 18:16:18,491 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 18:16:18,491 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 18:16:18,491 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 18:16:18,491 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 18:16:18,491 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 18:16:18,492 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 18:16:18,492 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 18:16:18,492 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 18:16:18,492 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 18:16:18,492 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 18:16:18,492 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 18:16:18,493 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 18:16:18,493 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 18:16:18,493 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 18:16:18,493 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 18:16:18,493 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 18:16:18,493 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 18:16:18,494 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 18:16:18,494 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 18:16:18,494 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 18:16:18,494 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 18:16:18,494 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 18:16:18,494 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 18:16:18,495 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 18:16:18,495 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 18:16:18,495 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 18:16:18,495 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 18:16:18,495 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 18:16:18,495 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_c3597560-dbca-4e5a-b5a1-ec2abf312612/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 -> 3c089be7b4887d2975165f6135c093492cb2095b [2018-12-02 18:16:18,512 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 18:16:18,519 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 18:16:18,521 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 18:16:18,522 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 18:16:18,522 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 18:16:18,523 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c3597560-dbca-4e5a-b5a1-ec2abf312612/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product62_true-unreach-call_false-termination.cil.c [2018-12-02 18:16:18,557 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c3597560-dbca-4e5a-b5a1-ec2abf312612/bin-2019/utaipan/data/d4240b265/ae1853692d1b4016ac49bb6c13db6843/FLAGb2c909acf [2018-12-02 18:16:18,993 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 18:16:18,993 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c3597560-dbca-4e5a-b5a1-ec2abf312612/sv-benchmarks/c/product-lines/minepump_spec1_product62_true-unreach-call_false-termination.cil.c [2018-12-02 18:16:18,999 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c3597560-dbca-4e5a-b5a1-ec2abf312612/bin-2019/utaipan/data/d4240b265/ae1853692d1b4016ac49bb6c13db6843/FLAGb2c909acf [2018-12-02 18:16:19,008 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c3597560-dbca-4e5a-b5a1-ec2abf312612/bin-2019/utaipan/data/d4240b265/ae1853692d1b4016ac49bb6c13db6843 [2018-12-02 18:16:19,009 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 18:16:19,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 18:16:19,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 18:16:19,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 18:16:19,013 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 18:16:19,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:16:19" (1/1) ... [2018-12-02 18:16:19,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d622ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:16:19, skipping insertion in model container [2018-12-02 18:16:19,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:16:19" (1/1) ... [2018-12-02 18:16:19,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 18:16:19,050 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 18:16:19,221 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 18:16:19,268 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 18:16:19,324 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 18:16:19,344 INFO L195 MainTranslator]: Completed translation [2018-12-02 18:16:19,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:16:19 WrapperNode [2018-12-02 18:16:19,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 18:16:19,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 18:16:19,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 18:16:19,345 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 18:16:19,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:16:19" (1/1) ... [2018-12-02 18:16:19,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:16:19" (1/1) ... [2018-12-02 18:16:19,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 18:16:19,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 18:16:19,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 18:16:19,366 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 18:16:19,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:16:19" (1/1) ... [2018-12-02 18:16:19,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:16:19" (1/1) ... [2018-12-02 18:16:19,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:16:19" (1/1) ... [2018-12-02 18:16:19,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:16:19" (1/1) ... [2018-12-02 18:16:19,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:16:19" (1/1) ... [2018-12-02 18:16:19,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:16:19" (1/1) ... [2018-12-02 18:16:19,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:16:19" (1/1) ... [2018-12-02 18:16:19,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 18:16:19,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 18:16:19,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 18:16:19,387 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 18:16:19,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:16:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3597560-dbca-4e5a-b5a1-ec2abf312612/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 18:16:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 18:16:19,419 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 18:16:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 18:16:19,419 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 18:16:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-02 18:16:19,419 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-02 18:16:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 18:16:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 18:16:19,419 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 18:16:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 18:16:19,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 18:16:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 18:16:19,420 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 18:16:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 18:16:19,420 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 18:16:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 18:16:19,420 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 18:16:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-12-02 18:16:19,420 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-12-02 18:16:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-02 18:16:19,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-02 18:16:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 18:16:19,420 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 18:16:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 18:16:19,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 18:16:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 18:16:19,421 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 18:16:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 18:16:19,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 18:16:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 18:16:19,421 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 18:16:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 18:16:19,421 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 18:16:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-02 18:16:19,421 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-02 18:16:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 18:16:19,421 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 18:16:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 18:16:19,421 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 18:16:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 18:16:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 18:16:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 18:16:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 18:16:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-12-02 18:16:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-12-02 18:16:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 18:16:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 18:16:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 18:16:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 18:16:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-02 18:16:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-02 18:16:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 18:16:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 18:16:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 18:16:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 18:16:19,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 18:16:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 18:16:19,423 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 18:16:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 18:16:19,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 18:16:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 18:16:19,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 18:16:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-02 18:16:19,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-02 18:16:19,705 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 18:16:19,705 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 18:16:19,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:16:19 BoogieIcfgContainer [2018-12-02 18:16:19,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 18:16:19,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 18:16:19,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 18:16:19,708 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 18:16:19,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:16:19" (1/3) ... [2018-12-02 18:16:19,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5325e24a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:16:19, skipping insertion in model container [2018-12-02 18:16:19,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:16:19" (2/3) ... [2018-12-02 18:16:19,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5325e24a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:16:19, skipping insertion in model container [2018-12-02 18:16:19,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:16:19" (3/3) ... [2018-12-02 18:16:19,710 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product62_true-unreach-call_false-termination.cil.c [2018-12-02 18:16:19,716 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 18:16:19,721 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 18:16:19,729 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 18:16:19,748 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 18:16:19,748 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 18:16:19,748 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 18:16:19,748 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 18:16:19,748 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 18:16:19,748 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 18:16:19,748 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 18:16:19,748 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 18:16:19,760 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states. [2018-12-02 18:16:19,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-02 18:16:19,765 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 18:16:19,766 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 18:16:19,767 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 18:16:19,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:16:19,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1697508556, now seen corresponding path program 1 times [2018-12-02 18:16:19,771 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 18:16:19,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:19,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 18:16:19,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:19,799 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 18:16:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:16:19,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:16:19,905 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 18:16:19,906 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 18:16:19,906 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 18:16:19,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 18:16:19,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 18:16:19,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 18:16:19,918 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 2 states. [2018-12-02 18:16:19,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 18:16:19,943 INFO L93 Difference]: Finished difference Result 308 states and 383 transitions. [2018-12-02 18:16:19,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 18:16:19,944 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-02 18:16:19,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 18:16:19,951 INFO L225 Difference]: With dead ends: 308 [2018-12-02 18:16:19,951 INFO L226 Difference]: Without dead ends: 154 [2018-12-02 18:16:19,953 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 18:16:19,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-12-02 18:16:19,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2018-12-02 18:16:19,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-12-02 18:16:19,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 183 transitions. [2018-12-02 18:16:19,985 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 183 transitions. Word has length 46 [2018-12-02 18:16:19,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 18:16:19,985 INFO L480 AbstractCegarLoop]: Abstraction has 154 states and 183 transitions. [2018-12-02 18:16:19,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 18:16:19,985 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 183 transitions. [2018-12-02 18:16:19,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 18:16:19,987 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 18:16:19,987 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 18:16:19,987 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 18:16:19,987 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:16:19,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1146648345, now seen corresponding path program 1 times [2018-12-02 18:16:19,987 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 18:16:19,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:19,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 18:16:19,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:19,988 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 18:16:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:16:20,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:16:20,036 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 18:16:20,036 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 18:16:20,036 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 18:16:20,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 18:16:20,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 18:16:20,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 18:16:20,037 INFO L87 Difference]: Start difference. First operand 154 states and 183 transitions. Second operand 3 states. [2018-12-02 18:16:20,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 18:16:20,051 INFO L93 Difference]: Finished difference Result 253 states and 301 transitions. [2018-12-02 18:16:20,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 18:16:20,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-02 18:16:20,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 18:16:20,052 INFO L225 Difference]: With dead ends: 253 [2018-12-02 18:16:20,053 INFO L226 Difference]: Without dead ends: 145 [2018-12-02 18:16:20,053 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 18:16:20,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-12-02 18:16:20,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2018-12-02 18:16:20,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-12-02 18:16:20,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 171 transitions. [2018-12-02 18:16:20,062 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 171 transitions. Word has length 47 [2018-12-02 18:16:20,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 18:16:20,062 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 171 transitions. [2018-12-02 18:16:20,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 18:16:20,062 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 171 transitions. [2018-12-02 18:16:20,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-02 18:16:20,063 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 18:16:20,063 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 18:16:20,063 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 18:16:20,063 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:16:20,063 INFO L82 PathProgramCache]: Analyzing trace with hash 244280267, now seen corresponding path program 1 times [2018-12-02 18:16:20,063 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 18:16:20,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:20,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 18:16:20,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:20,064 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 18:16:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:16:20,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:16:20,116 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 18:16:20,116 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 18:16:20,116 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 18:16:20,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 18:16:20,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 18:16:20,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 18:16:20,117 INFO L87 Difference]: Start difference. First operand 145 states and 171 transitions. Second operand 3 states. [2018-12-02 18:16:20,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 18:16:20,131 INFO L93 Difference]: Finished difference Result 266 states and 319 transitions. [2018-12-02 18:16:20,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 18:16:20,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-12-02 18:16:20,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 18:16:20,132 INFO L225 Difference]: With dead ends: 266 [2018-12-02 18:16:20,132 INFO L226 Difference]: Without dead ends: 145 [2018-12-02 18:16:20,133 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 18:16:20,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-12-02 18:16:20,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2018-12-02 18:16:20,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-12-02 18:16:20,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 170 transitions. [2018-12-02 18:16:20,141 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 170 transitions. Word has length 52 [2018-12-02 18:16:20,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 18:16:20,141 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 170 transitions. [2018-12-02 18:16:20,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 18:16:20,142 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 170 transitions. [2018-12-02 18:16:20,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-12-02 18:16:20,143 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 18:16:20,143 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 18:16:20,143 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 18:16:20,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:16:20,143 INFO L82 PathProgramCache]: Analyzing trace with hash 97775123, now seen corresponding path program 1 times [2018-12-02 18:16:20,144 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 18:16:20,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:20,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 18:16:20,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:20,144 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 18:16:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:16:20,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:16:20,214 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 18:16:20,215 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 18:16:20,215 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 18:16:20,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 18:16:20,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 18:16:20,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 18:16:20,216 INFO L87 Difference]: Start difference. First operand 145 states and 170 transitions. Second operand 5 states. [2018-12-02 18:16:20,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 18:16:20,610 INFO L93 Difference]: Finished difference Result 380 states and 460 transitions. [2018-12-02 18:16:20,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 18:16:20,610 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2018-12-02 18:16:20,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 18:16:20,612 INFO L225 Difference]: With dead ends: 380 [2018-12-02 18:16:20,612 INFO L226 Difference]: Without dead ends: 259 [2018-12-02 18:16:20,613 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-02 18:16:20,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2018-12-02 18:16:20,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 240. [2018-12-02 18:16:20,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2018-12-02 18:16:20,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 272 transitions. [2018-12-02 18:16:20,630 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 272 transitions. Word has length 70 [2018-12-02 18:16:20,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 18:16:20,630 INFO L480 AbstractCegarLoop]: Abstraction has 240 states and 272 transitions. [2018-12-02 18:16:20,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 18:16:20,631 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 272 transitions. [2018-12-02 18:16:20,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-02 18:16:20,632 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 18:16:20,632 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 18:16:20,632 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 18:16:20,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:16:20,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1410600138, now seen corresponding path program 1 times [2018-12-02 18:16:20,633 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 18:16:20,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:20,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 18:16:20,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:20,634 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 18:16:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:16:20,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:16:20,701 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 18:16:20,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 18:16:20,701 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 18:16:20,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 18:16:20,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 18:16:20,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 18:16:20,702 INFO L87 Difference]: Start difference. First operand 240 states and 272 transitions. Second operand 8 states. [2018-12-02 18:16:20,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 18:16:20,741 INFO L93 Difference]: Finished difference Result 463 states and 539 transitions. [2018-12-02 18:16:20,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 18:16:20,741 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2018-12-02 18:16:20,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 18:16:20,743 INFO L225 Difference]: With dead ends: 463 [2018-12-02 18:16:20,743 INFO L226 Difference]: Without dead ends: 247 [2018-12-02 18:16:20,744 INFO L631 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 [2018-12-02 18:16:20,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-12-02 18:16:20,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 244. [2018-12-02 18:16:20,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2018-12-02 18:16:20,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 276 transitions. [2018-12-02 18:16:20,761 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 276 transitions. Word has length 84 [2018-12-02 18:16:20,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 18:16:20,762 INFO L480 AbstractCegarLoop]: Abstraction has 244 states and 276 transitions. [2018-12-02 18:16:20,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 18:16:20,762 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 276 transitions. [2018-12-02 18:16:20,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-02 18:16:20,763 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 18:16:20,763 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 18:16:20,763 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 18:16:20,763 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:16:20,763 INFO L82 PathProgramCache]: Analyzing trace with hash 709000264, now seen corresponding path program 1 times [2018-12-02 18:16:20,764 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 18:16:20,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:20,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 18:16:20,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:20,765 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 18:16:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:16:20,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:16:20,821 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 18:16:20,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 18:16:20,821 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 18:16:20,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 18:16:20,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 18:16:20,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 18:16:20,822 INFO L87 Difference]: Start difference. First operand 244 states and 276 transitions. Second operand 6 states. [2018-12-02 18:16:20,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 18:16:20,931 INFO L93 Difference]: Finished difference Result 669 states and 778 transitions. [2018-12-02 18:16:20,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 18:16:20,932 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2018-12-02 18:16:20,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 18:16:20,934 INFO L225 Difference]: With dead ends: 669 [2018-12-02 18:16:20,934 INFO L226 Difference]: Without dead ends: 449 [2018-12-02 18:16:20,935 INFO L631 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 [2018-12-02 18:16:20,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2018-12-02 18:16:20,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 443. [2018-12-02 18:16:20,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2018-12-02 18:16:20,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 502 transitions. [2018-12-02 18:16:20,965 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 502 transitions. Word has length 84 [2018-12-02 18:16:20,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 18:16:20,966 INFO L480 AbstractCegarLoop]: Abstraction has 443 states and 502 transitions. [2018-12-02 18:16:20,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 18:16:20,966 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 502 transitions. [2018-12-02 18:16:20,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-02 18:16:20,967 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 18:16:20,967 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 18:16:20,967 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 18:16:20,968 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:16:20,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1045486588, now seen corresponding path program 1 times [2018-12-02 18:16:20,968 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 18:16:20,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:20,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 18:16:20,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:20,969 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 18:16:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:16:21,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:16:21,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 18:16:21,065 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 18:16:21,065 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 18:16:21,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 18:16:21,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 18:16:21,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 18:16:21,065 INFO L87 Difference]: Start difference. First operand 443 states and 502 transitions. Second operand 7 states. [2018-12-02 18:16:21,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 18:16:21,422 INFO L93 Difference]: Finished difference Result 478 states and 556 transitions. [2018-12-02 18:16:21,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 18:16:21,422 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2018-12-02 18:16:21,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 18:16:21,424 INFO L225 Difference]: With dead ends: 478 [2018-12-02 18:16:21,424 INFO L226 Difference]: Without dead ends: 475 [2018-12-02 18:16:21,424 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-02 18:16:21,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2018-12-02 18:16:21,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 443. [2018-12-02 18:16:21,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2018-12-02 18:16:21,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 501 transitions. [2018-12-02 18:16:21,444 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 501 transitions. Word has length 88 [2018-12-02 18:16:21,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 18:16:21,444 INFO L480 AbstractCegarLoop]: Abstraction has 443 states and 501 transitions. [2018-12-02 18:16:21,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 18:16:21,445 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 501 transitions. [2018-12-02 18:16:21,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-12-02 18:16:21,446 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 18:16:21,446 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 18:16:21,446 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 18:16:21,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:16:21,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1921303165, now seen corresponding path program 1 times [2018-12-02 18:16:21,447 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 18:16:21,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:21,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 18:16:21,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:21,447 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 18:16:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:16:21,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 18:16:21,489 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 18:16:21,489 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 18:16:21,489 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 18:16:21,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 18:16:21,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 18:16:21,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 18:16:21,490 INFO L87 Difference]: Start difference. First operand 443 states and 501 transitions. Second operand 6 states. [2018-12-02 18:16:21,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 18:16:21,528 INFO L93 Difference]: Finished difference Result 876 states and 1014 transitions. [2018-12-02 18:16:21,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 18:16:21,528 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-12-02 18:16:21,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 18:16:21,531 INFO L225 Difference]: With dead ends: 876 [2018-12-02 18:16:21,531 INFO L226 Difference]: Without dead ends: 457 [2018-12-02 18:16:21,532 INFO L631 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 [2018-12-02 18:16:21,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2018-12-02 18:16:21,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 453. [2018-12-02 18:16:21,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2018-12-02 18:16:21,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 511 transitions. [2018-12-02 18:16:21,552 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 511 transitions. Word has length 104 [2018-12-02 18:16:21,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 18:16:21,553 INFO L480 AbstractCegarLoop]: Abstraction has 453 states and 511 transitions. [2018-12-02 18:16:21,553 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 18:16:21,553 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 511 transitions. [2018-12-02 18:16:21,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-12-02 18:16:21,554 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 18:16:21,555 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 18:16:21,555 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 18:16:21,555 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:16:21,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1593561920, now seen corresponding path program 1 times [2018-12-02 18:16:21,555 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 18:16:21,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:21,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 18:16:21,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:21,556 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 18:16:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:16:21,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 18:16:21,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 18:16:21,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 18:16:21,635 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 18:16:21,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 18:16:21,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 18:16:21,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 18:16:21,636 INFO L87 Difference]: Start difference. First operand 453 states and 511 transitions. Second operand 4 states. [2018-12-02 18:16:21,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 18:16:21,772 INFO L93 Difference]: Finished difference Result 1353 states and 1602 transitions. [2018-12-02 18:16:21,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 18:16:21,772 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 104 [2018-12-02 18:16:21,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 18:16:21,774 INFO L225 Difference]: With dead ends: 1353 [2018-12-02 18:16:21,775 INFO L226 Difference]: Without dead ends: 924 [2018-12-02 18:16:21,775 INFO L631 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 [2018-12-02 18:16:21,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2018-12-02 18:16:21,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 909. [2018-12-02 18:16:21,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 909 states. [2018-12-02 18:16:21,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1055 transitions. [2018-12-02 18:16:21,802 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1055 transitions. Word has length 104 [2018-12-02 18:16:21,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 18:16:21,802 INFO L480 AbstractCegarLoop]: Abstraction has 909 states and 1055 transitions. [2018-12-02 18:16:21,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 18:16:21,802 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1055 transitions. [2018-12-02 18:16:21,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-12-02 18:16:21,803 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 18:16:21,803 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 18:16:21,803 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 18:16:21,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:16:21,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1641621798, now seen corresponding path program 1 times [2018-12-02 18:16:21,804 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 18:16:21,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:21,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 18:16:21,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:21,804 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 18:16:21,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:16:21,884 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 18:16:21,884 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 18:16:21,884 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 18:16:21,885 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2018-12-02 18:16:21,886 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [33], [36], [37], [38], [50], [53], [55], [56], [59], [63], [64], [65], [80], [83], [85], [94], [98], [102], [105], [110], [113], [118], [124], [129], [137], [138], [141], [142], [143], [145], [150], [153], [154], [156], [161], [163], [164], [169], [171], [198], [199], [205], [209], [223], [229], [232], [234], [237], [247], [250], [254], [255], [258], [260], [263], [265], [268], [277], [278], [279], [280], [281], [282], [283], [284], [285], [293], [294], [297], [299], [300], [307], [308], [309], [310], [311], [312], [315], [319], [320], [321], [322], [323], [324], [331], [332], [333], [335], [336], [337], [339], [340], [341], [342], [347], [348], [349], [350], [351] [2018-12-02 18:16:21,914 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 18:16:21,914 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 18:16:22,279 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 18:16:22,279 INFO L272 AbstractInterpreter]: Visited 106 different actions 108 times. Never merged. Never widened. Performed 3374 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3374 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-02 18:16:22,285 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:16:22,286 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 18:16:22,286 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 18:16:22,287 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3597560-dbca-4e5a-b5a1-ec2abf312612/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 18:16:22,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 18:16:22,295 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 18:16:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:16:22,372 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 18:16:22,524 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:16:22,524 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 18:16:23,137 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 18:16:23,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 18:16:23,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-02 18:16:23,153 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 18:16:23,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 18:16:23,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 18:16:23,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-02 18:16:23,154 INFO L87 Difference]: Start difference. First operand 909 states and 1055 transitions. Second operand 8 states. [2018-12-02 18:16:23,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 18:16:23,326 INFO L93 Difference]: Finished difference Result 1764 states and 2059 transitions. [2018-12-02 18:16:23,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 18:16:23,326 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 108 [2018-12-02 18:16:23,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 18:16:23,330 INFO L225 Difference]: With dead ends: 1764 [2018-12-02 18:16:23,330 INFO L226 Difference]: Without dead ends: 879 [2018-12-02 18:16:23,332 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 198 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-02 18:16:23,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2018-12-02 18:16:23,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 879. [2018-12-02 18:16:23,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2018-12-02 18:16:23,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1006 transitions. [2018-12-02 18:16:23,372 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1006 transitions. Word has length 108 [2018-12-02 18:16:23,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 18:16:23,372 INFO L480 AbstractCegarLoop]: Abstraction has 879 states and 1006 transitions. [2018-12-02 18:16:23,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 18:16:23,372 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1006 transitions. [2018-12-02 18:16:23,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-12-02 18:16:23,376 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 18:16:23,376 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 18:16:23,376 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 18:16:23,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:16:23,376 INFO L82 PathProgramCache]: Analyzing trace with hash 885904890, now seen corresponding path program 1 times [2018-12-02 18:16:23,376 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 18:16:23,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:23,377 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 18:16:23,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:16:23,377 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 18:16:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:16:23,493 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-12-02 18:16:23,494 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 18:16:23,494 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 18:16:23,494 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 179 with the following transitions: [2018-12-02 18:16:23,494 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [29], [33], [36], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [59], [63], [64], [65], [68], [70], [76], [80], [83], [84], [85], [94], [98], [102], [105], [108], [110], [113], [116], [118], [124], [129], [137], [138], [139], [140], [141], [142], [143], [145], [150], [153], [154], [156], [161], [163], [164], [169], [171], [198], [199], [202], [205], [209], [215], [218], [222], [223], [229], [232], [234], [237], [244], [247], [250], [254], [255], [258], [260], [263], [265], [268], [274], [276], [277], [278], [279], [280], [281], [282], [283], [284], [285], [287], [288], [291], [292], [293], [294], [295], [296], [297], [299], [300], [301], [302], [305], [306], [307], [308], [309], [310], [311], [312], [315], [316], [319], [320], [321], [322], [323], [324], [329], [330], [331], [332], [333], [334], [335], [336], [337], [339], [340], [341], [342], [345], [346], [347], [348], [349], [350], [351] [2018-12-02 18:16:23,497 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 18:16:23,497 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 18:16:25,541 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 18:16:25,541 INFO L272 AbstractInterpreter]: Visited 145 different actions 1605 times. Merged at 21 different actions 110 times. Never widened. Performed 58307 root evaluator evaluations with a maximum evaluation depth of 5. Performed 58307 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 26 fixpoints after 5 different actions. Largest state had 133 variables. [2018-12-02 18:16:25,543 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:16:25,543 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 18:16:25,543 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 18:16:25,544 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3597560-dbca-4e5a-b5a1-ec2abf312612/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 18:16:25,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 18:16:25,549 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 18:16:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:16:25,618 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 18:16:25,703 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-02 18:16:25,703 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 18:16:25,963 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-12-02 18:16:25,995 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 18:16:25,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-02 18:16:25,995 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 18:16:25,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 18:16:25,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 18:16:25,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-02 18:16:25,996 INFO L87 Difference]: Start difference. First operand 879 states and 1006 transitions. Second operand 8 states. [2018-12-02 18:16:26,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 18:16:26,137 INFO L93 Difference]: Finished difference Result 1475 states and 1712 transitions. [2018-12-02 18:16:26,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 18:16:26,137 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 178 [2018-12-02 18:16:26,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 18:16:26,138 INFO L225 Difference]: With dead ends: 1475 [2018-12-02 18:16:26,138 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 18:16:26,140 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 341 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-02 18:16:26,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 18:16:26,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 18:16:26,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 18:16:26,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 18:16:26,140 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 178 [2018-12-02 18:16:26,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 18:16:26,140 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 18:16:26,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 18:16:26,140 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 18:16:26,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 18:16:26,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 18:16:26,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 18:16:26,228 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 18:16:26,302 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 18:16:26,335 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 18:16:26,647 WARN L180 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 30 [2018-12-02 18:16:27,579 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2018-12-02 18:16:28,140 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 391 397) the Hoare annotation is: true [2018-12-02 18:16:28,140 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 391 397) no Hoare annotation was computed. [2018-12-02 18:16:28,140 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 398 406) no Hoare annotation was computed. [2018-12-02 18:16:28,140 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 398 406) the Hoare annotation is: true [2018-12-02 18:16:28,140 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 398 406) no Hoare annotation was computed. [2018-12-02 18:16:28,141 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 846 868) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 18:16:28,141 INFO L444 ceAbstractionStarter]: At program point L858(line 858) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (= main_~tmp~10 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 18:16:28,141 INFO L444 ceAbstractionStarter]: At program point L858-1(line 858) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (= main_~tmp~10 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 18:16:28,141 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 846 868) no Hoare annotation was computed. [2018-12-02 18:16:28,141 INFO L448 ceAbstractionStarter]: For program point L856(lines 856 863) no Hoare annotation was computed. [2018-12-02 18:16:28,141 INFO L448 ceAbstractionStarter]: For program point L856-1(lines 856 863) no Hoare annotation was computed. [2018-12-02 18:16:28,141 INFO L448 ceAbstractionStarter]: For program point L854(line 854) no Hoare annotation was computed. [2018-12-02 18:16:28,141 INFO L444 ceAbstractionStarter]: At program point L853(line 853) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 18:16:28,141 INFO L444 ceAbstractionStarter]: At program point L852(line 852) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 18:16:28,142 INFO L444 ceAbstractionStarter]: At program point L852-1(line 852) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 18:16:28,142 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 846 868) no Hoare annotation was computed. [2018-12-02 18:16:28,142 INFO L444 ceAbstractionStarter]: At program point L127(line 127) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2))) [2018-12-02 18:16:28,142 INFO L444 ceAbstractionStarter]: At program point L123(line 123) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2))) [2018-12-02 18:16:28,142 INFO L448 ceAbstractionStarter]: For program point L121(lines 121 129) no Hoare annotation was computed. [2018-12-02 18:16:28,142 INFO L444 ceAbstractionStarter]: At program point L119(line 119) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2))) [2018-12-02 18:16:28,142 INFO L448 ceAbstractionStarter]: For program point L119-1(line 119) no Hoare annotation was computed. [2018-12-02 18:16:28,142 INFO L448 ceAbstractionStarter]: For program point L117(lines 117 134) no Hoare annotation was computed. [2018-12-02 18:16:28,142 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 113 137) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse1))) [2018-12-02 18:16:28,143 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 113 137) no Hoare annotation was computed. [2018-12-02 18:16:28,143 INFO L444 ceAbstractionStarter]: At program point L132(line 132) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2) (or .cse1 (= |old(~pumpRunning~0)| 0) .cse2) (or .cse0 (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse1))) [2018-12-02 18:16:28,143 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 113 137) no Hoare annotation was computed. [2018-12-02 18:16:28,143 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 208 216) no Hoare annotation was computed. [2018-12-02 18:16:28,143 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 208 216) the Hoare annotation is: true [2018-12-02 18:16:28,143 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 208 216) no Hoare annotation was computed. [2018-12-02 18:16:28,143 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 272 290) the Hoare annotation is: true [2018-12-02 18:16:28,143 INFO L448 ceAbstractionStarter]: For program point L281(lines 281 285) no Hoare annotation was computed. [2018-12-02 18:16:28,143 INFO L451 ceAbstractionStarter]: At program point L279(line 279) the Hoare annotation is: true [2018-12-02 18:16:28,143 INFO L448 ceAbstractionStarter]: For program point L281-2(lines 281 285) no Hoare annotation was computed. [2018-12-02 18:16:28,143 INFO L448 ceAbstractionStarter]: For program point L279-1(line 279) no Hoare annotation was computed. [2018-12-02 18:16:28,143 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 272 290) no Hoare annotation was computed. [2018-12-02 18:16:28,144 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 272 290) no Hoare annotation was computed. [2018-12-02 18:16:28,144 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 384 390) no Hoare annotation was computed. [2018-12-02 18:16:28,144 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 384 390) the Hoare annotation is: true [2018-12-02 18:16:28,144 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 836 845) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 18:16:28,144 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 836 845) no Hoare annotation was computed. [2018-12-02 18:16:28,144 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 836 845) no Hoare annotation was computed. [2018-12-02 18:16:28,144 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 197 207) the Hoare annotation is: true [2018-12-02 18:16:28,144 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 197 207) no Hoare annotation was computed. [2018-12-02 18:16:28,144 INFO L451 ceAbstractionStarter]: At program point L202(line 202) the Hoare annotation is: true [2018-12-02 18:16:28,144 INFO L448 ceAbstractionStarter]: For program point L202-1(line 202) no Hoare annotation was computed. [2018-12-02 18:16:28,144 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 197 207) no Hoare annotation was computed. [2018-12-02 18:16:28,144 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 189 196) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (= ~systemActive~0 0)) (.cse2 (= |old(~pumpRunning~0)| 0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse1 .cse0 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 18:16:28,145 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 189 196) no Hoare annotation was computed. [2018-12-02 18:16:28,145 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 189 196) no Hoare annotation was computed. [2018-12-02 18:16:28,145 INFO L448 ceAbstractionStarter]: For program point L954(lines 954 960) no Hoare annotation was computed. [2018-12-02 18:16:28,145 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 950 963) no Hoare annotation was computed. [2018-12-02 18:16:28,145 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 950 963) the Hoare annotation is: true [2018-12-02 18:16:28,145 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 950 963) no Hoare annotation was computed. [2018-12-02 18:16:28,145 INFO L444 ceAbstractionStarter]: At program point L158(line 158) the Hoare annotation is: (let ((.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (= ~systemActive~0 0)) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse4) (or .cse3 .cse0 .cse1) (or .cse1 .cse2 .cse4))) [2018-12-02 18:16:28,145 INFO L448 ceAbstractionStarter]: For program point L158-1(lines 139 163) no Hoare annotation was computed. [2018-12-02 18:16:28,145 INFO L444 ceAbstractionStarter]: At program point L153(line 153) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= ~systemActive~0 0))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1) (or (< ~methaneLevelCritical~0 1) .cse0))) [2018-12-02 18:16:28,145 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 139 163) no Hoare annotation was computed. [2018-12-02 18:16:28,145 INFO L444 ceAbstractionStarter]: At program point L149(line 149) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse4 .cse1 .cse2) (or .cse3 (and (<= ~methaneLevelCritical~0 processEnvironment_~tmp~2) .cse4) .cse1))) [2018-12-02 18:16:28,146 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 139 163) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 0)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse1 .cse0))) [2018-12-02 18:16:28,146 INFO L448 ceAbstractionStarter]: For program point L147(lines 147 155) no Hoare annotation was computed. [2018-12-02 18:16:28,146 INFO L444 ceAbstractionStarter]: At program point L145(line 145) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse1 (= ~systemActive~0 0)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse4 .cse1 .cse2) (or .cse3 .cse1 .cse4))) [2018-12-02 18:16:28,146 INFO L448 ceAbstractionStarter]: For program point L145-1(line 145) no Hoare annotation was computed. [2018-12-02 18:16:28,146 INFO L448 ceAbstractionStarter]: For program point L143(lines 143 160) no Hoare annotation was computed. [2018-12-02 18:16:28,146 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 79 85) no Hoare annotation was computed. [2018-12-02 18:16:28,146 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 79 85) the Hoare annotation is: true [2018-12-02 18:16:28,146 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 303 368) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 18:16:28,146 INFO L448 ceAbstractionStarter]: For program point L351(lines 351 355) no Hoare annotation was computed. [2018-12-02 18:16:28,146 INFO L444 ceAbstractionStarter]: At program point L351-2(lines 343 356) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 0))) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 18:16:28,146 INFO L448 ceAbstractionStarter]: For program point L314(lines 313 360) no Hoare annotation was computed. [2018-12-02 18:16:28,147 INFO L444 ceAbstractionStarter]: At program point L345(line 345) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 0))) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 18:16:28,147 INFO L448 ceAbstractionStarter]: For program point L343(lines 343 356) no Hoare annotation was computed. [2018-12-02 18:16:28,147 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 303 368) no Hoare annotation was computed. [2018-12-02 18:16:28,147 INFO L444 ceAbstractionStarter]: At program point L335(line 335) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 0))) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (and (= 0 ~pumpRunning~0) .cse0 (<= 1 ~methaneLevelCritical~0) .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 18:16:28,147 INFO L448 ceAbstractionStarter]: For program point L333(lines 333 339) no Hoare annotation was computed. [2018-12-02 18:16:28,147 INFO L448 ceAbstractionStarter]: For program point L333-1(lines 333 339) no Hoare annotation was computed. [2018-12-02 18:16:28,147 INFO L444 ceAbstractionStarter]: At program point L358(lines 313 360) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 0))) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (and (= 0 ~pumpRunning~0) .cse0 (<= 1 ~methaneLevelCritical~0) .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 18:16:28,147 INFO L444 ceAbstractionStarter]: At program point L325(line 325) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 0))) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (and (= 0 ~pumpRunning~0) .cse0 .cse1) (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 18:16:28,147 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 329) no Hoare annotation was computed. [2018-12-02 18:16:28,147 INFO L448 ceAbstractionStarter]: For program point L323-1(lines 323 329) no Hoare annotation was computed. [2018-12-02 18:16:28,147 INFO L448 ceAbstractionStarter]: For program point L315(lines 315 319) no Hoare annotation was computed. [2018-12-02 18:16:28,147 INFO L444 ceAbstractionStarter]: At program point L361(lines 312 362) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 18:16:28,147 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 303 368) no Hoare annotation was computed. [2018-12-02 18:16:28,147 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 164 171) the Hoare annotation is: (or (= ~waterLevel~0 1) (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= ~methaneLevelCritical~0 0))) [2018-12-02 18:16:28,147 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 164 171) no Hoare annotation was computed. [2018-12-02 18:16:28,147 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 164 171) no Hoare annotation was computed. [2018-12-02 18:16:28,148 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 964 972) no Hoare annotation was computed. [2018-12-02 18:16:28,148 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 964 972) the Hoare annotation is: true [2018-12-02 18:16:28,148 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 964 972) no Hoare annotation was computed. [2018-12-02 18:16:28,148 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 18:16:28,148 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |old(~pumpRunning~0)| ~pumpRunning~0) [2018-12-02 18:16:28,148 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 18:16:28,148 INFO L444 ceAbstractionStarter]: At program point L177(line 177) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse3 .cse1 .cse2))) [2018-12-02 18:16:28,148 INFO L448 ceAbstractionStarter]: For program point L177-1(line 177) no Hoare annotation was computed. [2018-12-02 18:16:28,148 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 172 188) no Hoare annotation was computed. [2018-12-02 18:16:28,148 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 172 188) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse3 .cse1 .cse2))) [2018-12-02 18:16:28,148 INFO L444 ceAbstractionStarter]: At program point L183(line 183) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 18:16:28,148 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 172 188) no Hoare annotation was computed. [2018-12-02 18:16:28,148 INFO L448 ceAbstractionStarter]: For program point L179(lines 179 185) no Hoare annotation was computed. [2018-12-02 18:16:28,148 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 253 271) no Hoare annotation was computed. [2018-12-02 18:16:28,148 INFO L448 ceAbstractionStarter]: For program point L262(lines 262 266) no Hoare annotation was computed. [2018-12-02 18:16:28,148 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 253 271) the Hoare annotation is: true [2018-12-02 18:16:28,148 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 253 271) no Hoare annotation was computed. [2018-12-02 18:16:28,148 INFO L451 ceAbstractionStarter]: At program point L260(line 260) the Hoare annotation is: true [2018-12-02 18:16:28,148 INFO L448 ceAbstractionStarter]: For program point L262-2(lines 262 266) no Hoare annotation was computed. [2018-12-02 18:16:28,148 INFO L448 ceAbstractionStarter]: For program point L260-1(line 260) no Hoare annotation was computed. [2018-12-02 18:16:28,148 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 897 908) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0))) (and (or (<= 1 ~methaneLevelCritical~0) (< |old(~methaneLevelCritical~0)| 1) (not (= 0 ~pumpRunning~0)) .cse0) (or (= 0 ~methaneLevelCritical~0) .cse0 (not (= |old(~methaneLevelCritical~0)| 0))))) [2018-12-02 18:16:28,149 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 897 908) no Hoare annotation was computed. [2018-12-02 18:16:28,149 INFO L448 ceAbstractionStarter]: For program point L901-1(lines 897 908) no Hoare annotation was computed. [2018-12-02 18:16:28,149 INFO L451 ceAbstractionStarter]: At program point L800(lines 775 804) the Hoare annotation is: true [2018-12-02 18:16:28,149 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 775 804) no Hoare annotation was computed. [2018-12-02 18:16:28,149 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 775 804) the Hoare annotation is: true [2018-12-02 18:16:28,149 INFO L448 ceAbstractionStarter]: For program point L796(line 796) no Hoare annotation was computed. [2018-12-02 18:16:28,149 INFO L448 ceAbstractionStarter]: For program point L789(lines 789 793) no Hoare annotation was computed. [2018-12-02 18:16:28,149 INFO L451 ceAbstractionStarter]: At program point L789-1(lines 789 793) the Hoare annotation is: true [2018-12-02 18:16:28,149 INFO L448 ceAbstractionStarter]: For program point L786(line 786) no Hoare annotation was computed. [2018-12-02 18:16:28,149 INFO L451 ceAbstractionStarter]: At program point L785-2(lines 785 799) the Hoare annotation is: true [2018-12-02 18:16:28,149 INFO L451 ceAbstractionStarter]: At program point L781(line 781) the Hoare annotation is: true [2018-12-02 18:16:28,149 INFO L448 ceAbstractionStarter]: For program point L781-1(line 781) no Hoare annotation was computed. [2018-12-02 18:16:28,149 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 909 917) the Hoare annotation is: true [2018-12-02 18:16:28,149 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 909 917) no Hoare annotation was computed. [2018-12-02 18:16:28,149 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 909 917) no Hoare annotation was computed. [2018-12-02 18:16:28,149 INFO L444 ceAbstractionStarter]: At program point L61(line 61) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (= ~systemActive~0 0)) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1) (or (and (not (= |old(~pumpRunning~0)| 0)) .cse2) .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 .cse2))) [2018-12-02 18:16:28,149 INFO L448 ceAbstractionStarter]: For program point L59(lines 58 77) no Hoare annotation was computed. [2018-12-02 18:16:28,149 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 55 78) the Hoare annotation is: (let ((.cse7 (= |old(~waterLevel~0)| 1))) (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (= 1 ~waterLevel~0)) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (not .cse7)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse1 (= ~systemActive~0 0)) (.cse8 (not (= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse1 .cse5 .cse6) (or .cse3 .cse1 .cse0) (or .cse5 .cse4 .cse1 .cse6 .cse2) (or .cse7 .cse8 .cse1 .cse2) (or .cse3 .cse7 .cse1 .cse8)))) [2018-12-02 18:16:28,149 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 55 78) no Hoare annotation was computed. [2018-12-02 18:16:28,149 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 55 78) no Hoare annotation was computed. [2018-12-02 18:16:28,150 INFO L444 ceAbstractionStarter]: At program point L68(line 68) the Hoare annotation is: (let ((.cse7 (= |old(~waterLevel~0)| 1))) (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (= 1 ~waterLevel~0)) (.cse6 (not .cse7)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse8 (not (= ~waterLevel~0 1))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse0) (or .cse3 .cse4 .cse1 .cse5 .cse6) (or .cse5 .cse4 .cse1 .cse6 .cse2) (or .cse7 (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse8 .cse2) (or .cse3 .cse7 .cse8 .cse4 .cse1)))) [2018-12-02 18:16:28,150 INFO L444 ceAbstractionStarter]: At program point L66(lines 66 72) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 0)) (.cse9 (not (= ~waterLevel~0 1))) (.cse0 (= |old(~waterLevel~0)| 1))) (let ((.cse7 (= 1 ~waterLevel~0)) (.cse8 (not .cse0)) (.cse2 (and (not .cse1) .cse9)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= 0 ~pumpRunning~0)) (.cse5 (< ~methaneLevelCritical~0 1)) (.cse6 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse1) (or .cse5 .cse6 .cse1 .cse7 .cse8) (or .cse7 .cse6 .cse1 .cse8 .cse3) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse9 .cse6 .cse1)))) [2018-12-02 18:16:28,150 INFO L451 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 873 884) the Hoare annotation is: true [2018-12-02 18:16:28,150 INFO L448 ceAbstractionStarter]: For program point L877-1(lines 873 884) no Hoare annotation was computed. [2018-12-02 18:16:28,150 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 873 884) no Hoare annotation was computed. [2018-12-02 18:16:28,150 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 829 835) no Hoare annotation was computed. [2018-12-02 18:16:28,150 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 829 835) the Hoare annotation is: true [2018-12-02 18:16:28,150 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 18:16:28,150 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0))) [2018-12-02 18:16:28,150 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 18:16:28,150 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 18:16:28,150 INFO L448 ceAbstractionStarter]: For program point startSystemEXIT(lines 291 298) no Hoare annotation was computed. [2018-12-02 18:16:28,150 INFO L444 ceAbstractionStarter]: At program point startSystemENTRY(lines 291 298) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 0))) (.cse0 (= |old(~systemActive~0)| 0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 18:16:28,150 INFO L448 ceAbstractionStarter]: For program point startSystemFINAL(lines 291 298) no Hoare annotation was computed. [2018-12-02 18:16:28,150 INFO L444 ceAbstractionStarter]: At program point L97(line 97) the Hoare annotation is: (let ((.cse0 (not (= ~waterLevel~0 1))) (.cse2 (= ~systemActive~0 0)) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) (and .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) .cse2) (or .cse2 (= |old(~pumpRunning~0)| 0) .cse3) (or .cse2 .cse0 .cse3) (or .cse2 .cse1 .cse3))) [2018-12-02 18:16:28,150 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 87 111) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse1))) [2018-12-02 18:16:28,150 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 103) no Hoare annotation was computed. [2018-12-02 18:16:28,150 INFO L444 ceAbstractionStarter]: At program point L93(line 93) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2) (or .cse1 (= |old(~pumpRunning~0)| 0) .cse2) (or .cse0 (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse1))) [2018-12-02 18:16:28,150 INFO L448 ceAbstractionStarter]: For program point L93-1(line 93) no Hoare annotation was computed. [2018-12-02 18:16:28,151 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 87 111) no Hoare annotation was computed. [2018-12-02 18:16:28,151 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 108) no Hoare annotation was computed. [2018-12-02 18:16:28,151 INFO L444 ceAbstractionStarter]: At program point L106(line 106) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2))) [2018-12-02 18:16:28,151 INFO L448 ceAbstractionStarter]: For program point L106-1(lines 87 111) no Hoare annotation was computed. [2018-12-02 18:16:28,151 INFO L444 ceAbstractionStarter]: At program point L101(line 101) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse1 (= |old(~pumpRunning~0)| 0) .cse2) (or .cse1 .cse2 .cse0))) [2018-12-02 18:16:28,151 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 885 896) no Hoare annotation was computed. [2018-12-02 18:16:28,151 INFO L448 ceAbstractionStarter]: For program point L889-1(lines 885 896) no Hoare annotation was computed. [2018-12-02 18:16:28,151 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 885 896) the Hoare annotation is: (let ((.cse2 (= 1 ~waterLevel~0)) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (= ~systemActive~0 0)) (.cse3 (not (= |old(~waterLevel~0)| 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse0 .cse1 .cse3 (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 18:16:28,151 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1005) no Hoare annotation was computed. [2018-12-02 18:16:28,151 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 1001 1008) no Hoare annotation was computed. [2018-12-02 18:16:28,151 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 1001 1008) the Hoare annotation is: true [2018-12-02 18:16:28,151 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 1001 1008) no Hoare annotation was computed. [2018-12-02 18:16:28,151 INFO L444 ceAbstractionStarter]: At program point L989(line 989) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) (not (= 0 ~pumpRunning~0)) .cse0))) [2018-12-02 18:16:28,152 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 975 999) the Hoare annotation is: true [2018-12-02 18:16:28,152 INFO L448 ceAbstractionStarter]: For program point L987(lines 987 993) no Hoare annotation was computed. [2018-12-02 18:16:28,152 INFO L444 ceAbstractionStarter]: At program point L985(line 985) the Hoare annotation is: (or (= ~systemActive~0 0) (not (= ~methaneLevelCritical~0 0))) [2018-12-02 18:16:28,152 INFO L448 ceAbstractionStarter]: For program point L985-1(line 985) no Hoare annotation was computed. [2018-12-02 18:16:28,152 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification1_spec__1EXIT(lines 975 999) no Hoare annotation was computed. [2018-12-02 18:16:28,152 INFO L448 ceAbstractionStarter]: For program point L983(lines 983 996) no Hoare annotation was computed. [2018-12-02 18:16:28,152 INFO L448 ceAbstractionStarter]: For program point L983-1(lines 975 999) no Hoare annotation was computed. [2018-12-02 18:16:28,152 INFO L451 ceAbstractionStarter]: At program point L981(line 981) the Hoare annotation is: true [2018-12-02 18:16:28,152 INFO L448 ceAbstractionStarter]: For program point L981-1(line 981) no Hoare annotation was computed. [2018-12-02 18:16:28,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:16:28 BoogieIcfgContainer [2018-12-02 18:16:28,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 18:16:28,161 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 18:16:28,161 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 18:16:28,161 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 18:16:28,162 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:16:19" (3/4) ... [2018-12-02 18:16:28,165 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 18:16:28,168 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-02 18:16:28,168 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-02 18:16:28,168 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-02 18:16:28,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-02 18:16:28,170 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-02 18:16:28,170 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-12-02 18:16:28,170 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 18:16:28,170 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-02 18:16:28,170 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-02 18:16:28,170 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification1_spec__1 [2018-12-02 18:16:28,176 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2018-12-02 18:16:28,176 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-12-02 18:16:28,176 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-02 18:16:28,177 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-02 18:16:28,177 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 18:16:28,177 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 18:16:28,196 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(0 == \old(pumpRunning)) || \old(systemActive) == 0) || ((0 == methaneLevelCritical && !(systemActive == 0)) && splverifierCounter == 0)) || (((0 == pumpRunning && !(systemActive == 0)) && 1 <= methaneLevelCritical) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-02 18:16:28,197 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || \old(systemActive) == 0) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-02 18:16:28,230 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c3597560-dbca-4e5a-b5a1-ec2abf312612/bin-2019/utaipan/witness.graphml [2018-12-02 18:16:28,230 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 18:16:28,231 INFO L168 Benchmark]: Toolchain (without parser) took 9220.94 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 524.8 MB). Free memory was 948.1 MB in the beginning and 1.4 GB in the end (delta: -450.5 MB). Peak memory consumption was 74.3 MB. Max. memory is 11.5 GB. [2018-12-02 18:16:28,231 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 18:16:28,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.1 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -130.4 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-02 18:16:28,232 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 18:16:28,232 INFO L168 Benchmark]: Boogie Preprocessor took 21.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 18:16:28,232 INFO L168 Benchmark]: RCFGBuilder took 318.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. [2018-12-02 18:16:28,232 INFO L168 Benchmark]: TraceAbstraction took 8455.00 ms. Allocated memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: 435.7 MB). Free memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: -374.9 MB). Peak memory consumption was 692.5 MB. Max. memory is 11.5 GB. [2018-12-02 18:16:28,232 INFO L168 Benchmark]: Witness Printer took 68.98 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 145.7 kB). Peak memory consumption was 145.7 kB. Max. memory is 11.5 GB. [2018-12-02 18:16:28,233 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 334.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.1 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -130.4 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 318.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8455.00 ms. Allocated memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: 435.7 MB). Free memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: -374.9 MB). Peak memory consumption was 692.5 MB. Max. memory is 11.5 GB. * Witness Printer took 68.98 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 145.7 kB). Peak memory consumption was 145.7 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1005]: 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: 775]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 313]: Loop Invariant Derived loop invariant: ((((!(0 == \old(pumpRunning)) || \old(systemActive) == 0) || ((0 == methaneLevelCritical && !(systemActive == 0)) && splverifierCounter == 0)) || (((0 == pumpRunning && !(systemActive == 0)) && 1 <= methaneLevelCritical) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 312]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || \old(systemActive) == 0) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 785]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 167 locations, 1 error locations. SAFE Result, 8.4s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 1.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 2258 SDtfs, 1089 SDslu, 4697 SDs, 0 SdLazy, 1581 SolverSat, 273 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 687 GetRequests, 587 SyntacticMatches, 15 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=909occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.4s AbstIntTime, 2 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 79 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 1799 PreInvPairs, 1897 NumberOfFragments, 1698 HoareAnnotationTreeSize, 1799 FomulaSimplifications, 2052 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 70 FomulaSimplificationsInter, 7476 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 1251 NumberOfCodeBlocks, 1251 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1522 ConstructedInterpolants, 0 QuantifiedInterpolants, 284285 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1700 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 166/174 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...