./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product41_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7ceede50-9c20-46fe-a7e2-8111713fe373/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7ceede50-9c20-46fe-a7e2-8111713fe373/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7ceede50-9c20-46fe-a7e2-8111713fe373/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7ceede50-9c20-46fe-a7e2-8111713fe373/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product41_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7ceede50-9c20-46fe-a7e2-8111713fe373/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7ceede50-9c20-46fe-a7e2-8111713fe373/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 f25a9f8800d2b9b6ef21419533be8e4411f52f7f .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:52:46,449 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:52:46,450 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:52:46,458 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:52:46,458 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:52:46,459 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:52:46,460 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:52:46,461 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:52:46,462 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:52:46,463 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:52:46,463 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:52:46,464 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:52:46,464 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:52:46,465 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:52:46,466 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:52:46,467 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:52:46,467 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:52:46,469 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:52:46,470 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:52:46,471 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:52:46,472 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:52:46,473 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:52:46,475 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:52:46,475 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:52:46,475 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:52:46,476 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:52:46,477 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:52:46,478 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:52:46,478 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:52:46,479 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:52:46,479 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:52:46,480 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:52:46,480 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:52:46,480 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:52:46,481 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:52:46,482 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:52:46,482 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7ceede50-9c20-46fe-a7e2-8111713fe373/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 10:52:46,492 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:52:46,492 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:52:46,493 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:52:46,493 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:52:46,493 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:52:46,493 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:52:46,493 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:52:46,493 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 10:52:46,493 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:52:46,493 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:52:46,494 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 10:52:46,494 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 10:52:46,494 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:52:46,494 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:52:46,494 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:52:46,494 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:52:46,494 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:52:46,494 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:52:46,494 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:52:46,495 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:52:46,495 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:52:46,495 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:52:46,495 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:52:46,495 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:52:46,495 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:52:46,495 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:52:46,495 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:52:46,495 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:52:46,495 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:52:46,495 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:52:46,495 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:52:46,495 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:52:46,496 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:52:46,496 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 10:52:46,496 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:52:46,496 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:52:46,496 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 10:52:46,496 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_7ceede50-9c20-46fe-a7e2-8111713fe373/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 -> f25a9f8800d2b9b6ef21419533be8e4411f52f7f [2018-11-18 10:52:46,520 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:52:46,527 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:52:46,529 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:52:46,530 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:52:46,530 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:52:46,530 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7ceede50-9c20-46fe-a7e2-8111713fe373/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product41_true-unreach-call_false-termination.cil.c [2018-11-18 10:52:46,567 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ceede50-9c20-46fe-a7e2-8111713fe373/bin-2019/utaipan/data/b1ea96a34/805ff7a3b1f14007ba7862ce44063511/FLAG0c533b0cf [2018-11-18 10:52:47,003 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:52:47,004 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7ceede50-9c20-46fe-a7e2-8111713fe373/sv-benchmarks/c/product-lines/minepump_spec3_product41_true-unreach-call_false-termination.cil.c [2018-11-18 10:52:47,013 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ceede50-9c20-46fe-a7e2-8111713fe373/bin-2019/utaipan/data/b1ea96a34/805ff7a3b1f14007ba7862ce44063511/FLAG0c533b0cf [2018-11-18 10:52:47,023 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7ceede50-9c20-46fe-a7e2-8111713fe373/bin-2019/utaipan/data/b1ea96a34/805ff7a3b1f14007ba7862ce44063511 [2018-11-18 10:52:47,025 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:52:47,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:52:47,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:52:47,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:52:47,029 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:52:47,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:52:47" (1/1) ... [2018-11-18 10:52:47,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c3b532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:47, skipping insertion in model container [2018-11-18 10:52:47,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:52:47" (1/1) ... [2018-11-18 10:52:47,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:52:47,068 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:52:47,269 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:52:47,278 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:52:47,401 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:52:47,417 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:52:47,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:47 WrapperNode [2018-11-18 10:52:47,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:52:47,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:52:47,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:52:47,418 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:52:47,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:47" (1/1) ... [2018-11-18 10:52:47,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:47" (1/1) ... [2018-11-18 10:52:47,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:52:47,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:52:47,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:52:47,440 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:52:47,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:47" (1/1) ... [2018-11-18 10:52:47,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:47" (1/1) ... [2018-11-18 10:52:47,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:47" (1/1) ... [2018-11-18 10:52:47,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:47" (1/1) ... [2018-11-18 10:52:47,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:47" (1/1) ... [2018-11-18 10:52:47,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:47" (1/1) ... [2018-11-18 10:52:47,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:47" (1/1) ... [2018-11-18 10:52:47,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:52:47,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:52:47,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:52:47,466 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:52:47,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ceede50-9c20-46fe-a7e2-8111713fe373/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:52:47,516 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-18 10:52:47,516 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-18 10:52:47,516 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:52:47,516 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:52:47,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:52:47,516 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-18 10:52:47,517 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-18 10:52:47,517 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-18 10:52:47,517 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-18 10:52:47,517 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-18 10:52:47,517 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-18 10:52:47,517 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 10:52:47,517 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 10:52:47,518 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-18 10:52:47,518 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-18 10:52:47,518 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-18 10:52:47,518 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-18 10:52:47,518 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-18 10:52:47,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-18 10:52:47,518 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-18 10:52:47,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-18 10:52:47,519 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 10:52:47,519 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 10:52:47,519 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-18 10:52:47,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-18 10:52:47,519 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 10:52:47,519 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 10:52:47,519 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-18 10:52:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-18 10:52:47,520 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 10:52:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 10:52:47,520 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-18 10:52:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-18 10:52:47,520 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-18 10:52:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-18 10:52:47,520 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-18 10:52:47,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-18 10:52:47,521 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-18 10:52:47,521 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-18 10:52:47,521 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-18 10:52:47,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-18 10:52:47,521 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-11-18 10:52:47,521 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-11-18 10:52:47,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:52:47,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:52:47,522 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 10:52:47,522 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 10:52:47,522 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2018-11-18 10:52:47,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2018-11-18 10:52:47,522 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-18 10:52:47,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-18 10:52:47,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:52:47,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:52:48,021 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:52:48,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:52:48 BoogieIcfgContainer [2018-11-18 10:52:48,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:52:48,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:52:48,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:52:48,026 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:52:48,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:52:47" (1/3) ... [2018-11-18 10:52:48,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6bf856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:52:48, skipping insertion in model container [2018-11-18 10:52:48,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:47" (2/3) ... [2018-11-18 10:52:48,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6bf856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:52:48, skipping insertion in model container [2018-11-18 10:52:48,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:52:48" (3/3) ... [2018-11-18 10:52:48,029 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product41_true-unreach-call_false-termination.cil.c [2018-11-18 10:52:48,036 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:52:48,043 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:52:48,055 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:52:48,081 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:52:48,081 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:52:48,081 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:52:48,081 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:52:48,081 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:52:48,082 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:52:48,082 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:52:48,082 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:52:48,099 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states. [2018-11-18 10:52:48,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-18 10:52:48,107 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:48,107 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:52:48,110 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:48,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:48,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1976269736, now seen corresponding path program 1 times [2018-11-18 10:52:48,117 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:48,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:48,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:48,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:48,150 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:48,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:48,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:48,323 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:52:48,323 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:52:48,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 10:52:48,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 10:52:48,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:52:48,338 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 2 states. [2018-11-18 10:52:48,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:48,366 INFO L93 Difference]: Finished difference Result 250 states and 309 transitions. [2018-11-18 10:52:48,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:52:48,367 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2018-11-18 10:52:48,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:48,377 INFO L225 Difference]: With dead ends: 250 [2018-11-18 10:52:48,377 INFO L226 Difference]: Without dead ends: 125 [2018-11-18 10:52:48,380 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:52:48,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-11-18 10:52:48,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2018-11-18 10:52:48,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-11-18 10:52:48,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 146 transitions. [2018-11-18 10:52:48,423 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 146 transitions. Word has length 52 [2018-11-18 10:52:48,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:48,424 INFO L480 AbstractCegarLoop]: Abstraction has 125 states and 146 transitions. [2018-11-18 10:52:48,424 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 10:52:48,424 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 146 transitions. [2018-11-18 10:52:48,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-18 10:52:48,427 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:48,427 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:52:48,428 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:48,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:48,428 INFO L82 PathProgramCache]: Analyzing trace with hash -988847058, now seen corresponding path program 1 times [2018-11-18 10:52:48,428 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:48,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:48,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:48,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:48,431 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:48,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:48,511 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:48,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:52:48,511 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:52:48,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:52:48,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:52:48,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:52:48,513 INFO L87 Difference]: Start difference. First operand 125 states and 146 transitions. Second operand 3 states. [2018-11-18 10:52:48,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:48,533 INFO L93 Difference]: Finished difference Result 197 states and 229 transitions. [2018-11-18 10:52:48,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:52:48,536 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2018-11-18 10:52:48,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:48,538 INFO L225 Difference]: With dead ends: 197 [2018-11-18 10:52:48,538 INFO L226 Difference]: Without dead ends: 115 [2018-11-18 10:52:48,539 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:52:48,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-11-18 10:52:48,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-11-18 10:52:48,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-11-18 10:52:48,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 133 transitions. [2018-11-18 10:52:48,551 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 133 transitions. Word has length 54 [2018-11-18 10:52:48,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:48,551 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 133 transitions. [2018-11-18 10:52:48,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:52:48,551 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 133 transitions. [2018-11-18 10:52:48,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-18 10:52:48,552 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:48,553 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:52:48,553 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:48,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:48,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1751105761, now seen corresponding path program 1 times [2018-11-18 10:52:48,553 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:48,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:48,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:48,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:48,554 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:48,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:48,665 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:48,665 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 10:52:48,665 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:52:48,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 10:52:48,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 10:52:48,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:52:48,666 INFO L87 Difference]: Start difference. First operand 115 states and 133 transitions. Second operand 7 states. [2018-11-18 10:52:48,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:48,934 INFO L93 Difference]: Finished difference Result 206 states and 243 transitions. [2018-11-18 10:52:48,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 10:52:48,935 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2018-11-18 10:52:48,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:48,936 INFO L225 Difference]: With dead ends: 206 [2018-11-18 10:52:48,936 INFO L226 Difference]: Without dead ends: 115 [2018-11-18 10:52:48,937 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 10:52:48,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-11-18 10:52:48,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-11-18 10:52:48,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-11-18 10:52:48,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 132 transitions. [2018-11-18 10:52:48,949 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 132 transitions. Word has length 58 [2018-11-18 10:52:48,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:48,949 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 132 transitions. [2018-11-18 10:52:48,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 10:52:48,950 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 132 transitions. [2018-11-18 10:52:48,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-11-18 10:52:48,951 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:48,952 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:52:48,952 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:48,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:48,953 INFO L82 PathProgramCache]: Analyzing trace with hash 654465664, now seen corresponding path program 1 times [2018-11-18 10:52:48,953 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:48,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:48,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:48,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:48,955 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:49,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:49,058 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:49,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 10:52:49,058 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:52:49,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 10:52:49,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 10:52:49,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:52:49,059 INFO L87 Difference]: Start difference. First operand 115 states and 132 transitions. Second operand 5 states. [2018-11-18 10:52:49,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:49,410 INFO L93 Difference]: Finished difference Result 305 states and 365 transitions. [2018-11-18 10:52:49,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 10:52:49,411 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2018-11-18 10:52:49,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:49,413 INFO L225 Difference]: With dead ends: 305 [2018-11-18 10:52:49,413 INFO L226 Difference]: Without dead ends: 214 [2018-11-18 10:52:49,414 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:52:49,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-11-18 10:52:49,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 195. [2018-11-18 10:52:49,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-11-18 10:52:49,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 224 transitions. [2018-11-18 10:52:49,438 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 224 transitions. Word has length 66 [2018-11-18 10:52:49,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:49,439 INFO L480 AbstractCegarLoop]: Abstraction has 195 states and 224 transitions. [2018-11-18 10:52:49,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 10:52:49,439 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 224 transitions. [2018-11-18 10:52:49,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-11-18 10:52:49,441 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:49,441 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:52:49,442 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:49,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:49,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1821425051, now seen corresponding path program 1 times [2018-11-18 10:52:49,442 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:49,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:49,443 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:49,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:49,443 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:49,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:49,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:49,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 10:52:49,559 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:52:49,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 10:52:49,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 10:52:49,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 10:52:49,560 INFO L87 Difference]: Start difference. First operand 195 states and 224 transitions. Second operand 8 states. [2018-11-18 10:52:49,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:49,597 INFO L93 Difference]: Finished difference Result 373 states and 439 transitions. [2018-11-18 10:52:49,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 10:52:49,598 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2018-11-18 10:52:49,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:49,600 INFO L225 Difference]: With dead ends: 373 [2018-11-18 10:52:49,600 INFO L226 Difference]: Without dead ends: 202 [2018-11-18 10:52:49,601 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 10:52:49,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2018-11-18 10:52:49,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 199. [2018-11-18 10:52:49,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2018-11-18 10:52:49,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 228 transitions. [2018-11-18 10:52:49,619 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 228 transitions. Word has length 80 [2018-11-18 10:52:49,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:49,619 INFO L480 AbstractCegarLoop]: Abstraction has 199 states and 228 transitions. [2018-11-18 10:52:49,619 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 10:52:49,619 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 228 transitions. [2018-11-18 10:52:49,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-11-18 10:52:49,622 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:49,622 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:52:49,622 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:49,622 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:49,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1749038493, now seen corresponding path program 1 times [2018-11-18 10:52:49,622 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:49,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:49,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:49,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:49,623 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:49,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:49,713 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:49,713 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 10:52:49,713 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:52:49,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 10:52:49,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:52:49,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:52:49,714 INFO L87 Difference]: Start difference. First operand 199 states and 228 transitions. Second operand 6 states. [2018-11-18 10:52:49,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:49,855 INFO L93 Difference]: Finished difference Result 495 states and 595 transitions. [2018-11-18 10:52:49,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 10:52:49,857 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2018-11-18 10:52:49,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:49,858 INFO L225 Difference]: With dead ends: 495 [2018-11-18 10:52:49,859 INFO L226 Difference]: Without dead ends: 320 [2018-11-18 10:52:49,859 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:52:49,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2018-11-18 10:52:49,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 316. [2018-11-18 10:52:49,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2018-11-18 10:52:49,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 367 transitions. [2018-11-18 10:52:49,877 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 367 transitions. Word has length 80 [2018-11-18 10:52:49,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:49,877 INFO L480 AbstractCegarLoop]: Abstraction has 316 states and 367 transitions. [2018-11-18 10:52:49,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 10:52:49,878 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 367 transitions. [2018-11-18 10:52:49,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-18 10:52:49,879 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:49,879 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:52:49,879 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:49,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:49,879 INFO L82 PathProgramCache]: Analyzing trace with hash 2014211305, now seen corresponding path program 1 times [2018-11-18 10:52:49,879 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:49,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:49,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:49,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:49,882 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:49,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:49,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:49,973 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:49,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 10:52:49,973 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:52:49,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 10:52:49,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:52:49,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:52:49,975 INFO L87 Difference]: Start difference. First operand 316 states and 367 transitions. Second operand 6 states. [2018-11-18 10:52:50,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:50,227 INFO L93 Difference]: Finished difference Result 657 states and 791 transitions. [2018-11-18 10:52:50,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 10:52:50,228 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2018-11-18 10:52:50,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:50,230 INFO L225 Difference]: With dead ends: 657 [2018-11-18 10:52:50,231 INFO L226 Difference]: Without dead ends: 482 [2018-11-18 10:52:50,231 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:52:50,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2018-11-18 10:52:50,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 464. [2018-11-18 10:52:50,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2018-11-18 10:52:50,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 550 transitions. [2018-11-18 10:52:50,268 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 550 transitions. Word has length 84 [2018-11-18 10:52:50,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:50,269 INFO L480 AbstractCegarLoop]: Abstraction has 464 states and 550 transitions. [2018-11-18 10:52:50,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 10:52:50,269 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 550 transitions. [2018-11-18 10:52:50,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-18 10:52:50,271 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:50,271 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:52:50,272 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:50,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:50,272 INFO L82 PathProgramCache]: Analyzing trace with hash -2023376788, now seen corresponding path program 1 times [2018-11-18 10:52:50,272 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:50,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:50,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:50,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:50,273 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:50,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:50,362 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:50,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 10:52:50,362 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:52:50,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 10:52:50,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 10:52:50,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:52:50,363 INFO L87 Difference]: Start difference. First operand 464 states and 550 transitions. Second operand 9 states. [2018-11-18 10:52:50,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:50,440 INFO L93 Difference]: Finished difference Result 807 states and 969 transitions. [2018-11-18 10:52:50,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 10:52:50,441 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2018-11-18 10:52:50,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:50,443 INFO L225 Difference]: With dead ends: 807 [2018-11-18 10:52:50,443 INFO L226 Difference]: Without dead ends: 484 [2018-11-18 10:52:50,444 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-11-18 10:52:50,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2018-11-18 10:52:50,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 479. [2018-11-18 10:52:50,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2018-11-18 10:52:50,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 567 transitions. [2018-11-18 10:52:50,473 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 567 transitions. Word has length 84 [2018-11-18 10:52:50,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:50,473 INFO L480 AbstractCegarLoop]: Abstraction has 479 states and 567 transitions. [2018-11-18 10:52:50,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 10:52:50,473 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 567 transitions. [2018-11-18 10:52:50,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-18 10:52:50,475 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:50,475 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:52:50,475 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:50,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:50,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1950990230, now seen corresponding path program 1 times [2018-11-18 10:52:50,475 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:50,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:50,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:50,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:50,478 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:50,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:50,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:50,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 10:52:50,536 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:52:50,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 10:52:50,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 10:52:50,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:52:50,537 INFO L87 Difference]: Start difference. First operand 479 states and 567 transitions. Second operand 5 states. [2018-11-18 10:52:50,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:50,568 INFO L93 Difference]: Finished difference Result 809 states and 976 transitions. [2018-11-18 10:52:50,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 10:52:50,569 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 84 [2018-11-18 10:52:50,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:50,571 INFO L225 Difference]: With dead ends: 809 [2018-11-18 10:52:50,571 INFO L226 Difference]: Without dead ends: 471 [2018-11-18 10:52:50,573 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:52:50,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2018-11-18 10:52:50,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2018-11-18 10:52:50,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2018-11-18 10:52:50,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 556 transitions. [2018-11-18 10:52:50,596 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 556 transitions. Word has length 84 [2018-11-18 10:52:50,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:50,597 INFO L480 AbstractCegarLoop]: Abstraction has 471 states and 556 transitions. [2018-11-18 10:52:50,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 10:52:50,597 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 556 transitions. [2018-11-18 10:52:50,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-18 10:52:50,598 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:50,599 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:52:50,599 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:50,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:50,599 INFO L82 PathProgramCache]: Analyzing trace with hash -43941869, now seen corresponding path program 1 times [2018-11-18 10:52:50,599 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:50,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:50,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:50,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:50,600 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:50,705 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 10:52:50,705 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:52:50,705 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:52:50,706 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 97 with the following transitions: [2018-11-18 10:52:50,707 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [19], [20], [23], [25], [26], [27], [31], [32], [33], [36], [38], [41], [51], [53], [57], [63], [67], [71], [74], [79], [85], [87], [90], [107], [108], [109], [111], [114], [119], [120], [121], [122], [124], [129], [131], [132], [167], [168], [174], [178], [185], [187], [192], [194], [197], [199], [204], [218], [224], [228], [229], [232], [233], [234], [235], [236], [237], [238], [239], [240], [242], [244], [245], [246], [247], [248], [249], [254], [255], [258], [262], [263], [266], [267], [274], [275], [276], [278], [279], [280], [281], [282], [283], [284], [286], [287], [288] [2018-11-18 10:52:50,741 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:52:50,741 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:52:51,221 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 10:52:51,222 INFO L272 AbstractInterpreter]: Visited 94 different actions 96 times. Never merged. Never widened. Performed 2912 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2912 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 10:52:51,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:51,242 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 10:52:51,242 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:52:51,242 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ceede50-9c20-46fe-a7e2-8111713fe373/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:52:51,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:51,260 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 10:52:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:51,367 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:52:51,469 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:51,469 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:52:51,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 10:52:51,843 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 10:52:51,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 9] total 19 [2018-11-18 10:52:51,843 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:52:51,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 10:52:51,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 10:52:51,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2018-11-18 10:52:51,844 INFO L87 Difference]: Start difference. First operand 471 states and 556 transitions. Second operand 8 states. [2018-11-18 10:52:52,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:52,174 INFO L93 Difference]: Finished difference Result 1327 states and 1602 transitions. [2018-11-18 10:52:52,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 10:52:52,175 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 96 [2018-11-18 10:52:52,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:52,178 INFO L225 Difference]: With dead ends: 1327 [2018-11-18 10:52:52,178 INFO L226 Difference]: Without dead ends: 880 [2018-11-18 10:52:52,179 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 181 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2018-11-18 10:52:52,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2018-11-18 10:52:52,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 877. [2018-11-18 10:52:52,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2018-11-18 10:52:52,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1036 transitions. [2018-11-18 10:52:52,215 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1036 transitions. Word has length 96 [2018-11-18 10:52:52,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:52,216 INFO L480 AbstractCegarLoop]: Abstraction has 877 states and 1036 transitions. [2018-11-18 10:52:52,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 10:52:52,216 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1036 transitions. [2018-11-18 10:52:52,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-11-18 10:52:52,219 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:52,219 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:52:52,219 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:52,219 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:52,219 INFO L82 PathProgramCache]: Analyzing trace with hash -561084681, now seen corresponding path program 1 times [2018-11-18 10:52:52,219 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:52,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:52,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:52,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:52,220 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:52,344 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 10:52:52,345 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:52,345 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 10:52:52,345 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:52:52,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 10:52:52,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 10:52:52,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-18 10:52:52,346 INFO L87 Difference]: Start difference. First operand 877 states and 1036 transitions. Second operand 10 states. [2018-11-18 10:52:52,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:52,535 INFO L93 Difference]: Finished difference Result 1678 states and 2019 transitions. [2018-11-18 10:52:52,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 10:52:52,536 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 100 [2018-11-18 10:52:52,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:52,538 INFO L225 Difference]: With dead ends: 1678 [2018-11-18 10:52:52,538 INFO L226 Difference]: Without dead ends: 825 [2018-11-18 10:52:52,539 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 10:52:52,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2018-11-18 10:52:52,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 811. [2018-11-18 10:52:52,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2018-11-18 10:52:52,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 944 transitions. [2018-11-18 10:52:52,561 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 944 transitions. Word has length 100 [2018-11-18 10:52:52,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:52,562 INFO L480 AbstractCegarLoop]: Abstraction has 811 states and 944 transitions. [2018-11-18 10:52:52,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 10:52:52,562 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 944 transitions. [2018-11-18 10:52:52,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-11-18 10:52:52,563 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:52,563 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:52:52,563 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:52,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:52,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1459380117, now seen corresponding path program 1 times [2018-11-18 10:52:52,564 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:52:52,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:52,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:52,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:52:52,565 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:52:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:52,629 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 10:52:52,629 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:52,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 10:52:52,629 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:52:52,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 10:52:52,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 10:52:52,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-18 10:52:52,630 INFO L87 Difference]: Start difference. First operand 811 states and 944 transitions. Second operand 10 states. [2018-11-18 10:52:52,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:52,760 INFO L93 Difference]: Finished difference Result 1599 states and 1866 transitions. [2018-11-18 10:52:52,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 10:52:52,760 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 100 [2018-11-18 10:52:52,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:52,761 INFO L225 Difference]: With dead ends: 1599 [2018-11-18 10:52:52,761 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 10:52:52,763 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 10:52:52,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 10:52:52,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 10:52:52,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 10:52:52,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 10:52:52,764 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 100 [2018-11-18 10:52:52,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:52,764 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:52:52,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 10:52:52,764 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 10:52:52,764 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 10:52:52,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 10:52:53,323 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 29 [2018-11-18 10:52:53,503 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 36 [2018-11-18 10:52:53,960 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2018-11-18 10:52:54,235 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2018-11-18 10:52:54,707 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 37 [2018-11-18 10:52:54,826 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2018-11-18 10:52:54,826 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2018-11-18 10:52:54,826 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2018-11-18 10:52:54,826 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2018-11-18 10:52:54,826 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 68 76) no Hoare annotation was computed. [2018-11-18 10:52:54,826 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 528 550) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 10:52:54,826 INFO L421 ceAbstractionStarter]: At program point L540(line 540) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= main_~tmp~5 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 10:52:54,827 INFO L421 ceAbstractionStarter]: At program point L540-1(line 540) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= main_~tmp~5 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 10:52:54,827 INFO L425 ceAbstractionStarter]: For program point L538(lines 538 545) no Hoare annotation was computed. [2018-11-18 10:52:54,827 INFO L425 ceAbstractionStarter]: For program point L538-1(lines 538 545) no Hoare annotation was computed. [2018-11-18 10:52:54,827 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 528 550) no Hoare annotation was computed. [2018-11-18 10:52:54,827 INFO L425 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-11-18 10:52:54,827 INFO L421 ceAbstractionStarter]: At program point L535(line 535) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 10:52:54,827 INFO L421 ceAbstractionStarter]: At program point L534(line 534) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 10:52:54,827 INFO L421 ceAbstractionStarter]: At program point L534-1(line 534) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 10:52:54,827 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 528 550) no Hoare annotation was computed. [2018-11-18 10:52:54,827 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 193 201) no Hoare annotation was computed. [2018-11-18 10:52:54,827 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 193 201) the Hoare annotation is: true [2018-11-18 10:52:54,828 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 193 201) no Hoare annotation was computed. [2018-11-18 10:52:54,828 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2018-11-18 10:52:54,828 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2018-11-18 10:52:54,828 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 518 527) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 10:52:54,828 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 518 527) no Hoare annotation was computed. [2018-11-18 10:52:54,828 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 518 527) no Hoare annotation was computed. [2018-11-18 10:52:54,828 INFO L428 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 182 192) the Hoare annotation is: true [2018-11-18 10:52:54,828 INFO L428 ceAbstractionStarter]: At program point L187(line 187) the Hoare annotation is: true [2018-11-18 10:52:54,828 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 182 192) no Hoare annotation was computed. [2018-11-18 10:52:54,828 INFO L425 ceAbstractionStarter]: For program point L187-1(line 187) no Hoare annotation was computed. [2018-11-18 10:52:54,828 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 182 192) no Hoare annotation was computed. [2018-11-18 10:52:54,828 INFO L425 ceAbstractionStarter]: For program point L445(lines 445 451) no Hoare annotation was computed. [2018-11-18 10:52:54,828 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 441 454) no Hoare annotation was computed. [2018-11-18 10:52:54,828 INFO L428 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 441 454) the Hoare annotation is: true [2018-11-18 10:52:54,828 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 441 454) no Hoare annotation was computed. [2018-11-18 10:52:54,829 INFO L421 ceAbstractionStarter]: At program point L129(line 129) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= 0 ~pumpRunning~0)) (.cse4 (not (= 1 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse2) (or .cse1 .cse2 .cse3 .cse5) (or .cse4 .cse2 .cse5))) [2018-11-18 10:52:54,829 INFO L425 ceAbstractionStarter]: For program point L129-1(line 129) no Hoare annotation was computed. [2018-11-18 10:52:54,829 INFO L425 ceAbstractionStarter]: For program point L127(lines 127 144) no Hoare annotation was computed. [2018-11-18 10:52:54,829 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 123 147) no Hoare annotation was computed. [2018-11-18 10:52:54,829 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 123 147) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (= 0 ~pumpRunning~0)) (.cse2 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (= ~pumpRunning~0 1)) (.cse3 (not (= ~systemActive~0 1))) (.cse6 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse3 .cse5) (or .cse4 .cse3 .cse5 .cse6) (or .cse2 .cse1 .cse3 .cse6))) [2018-11-18 10:52:54,829 INFO L421 ceAbstractionStarter]: At program point L142(line 142) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (= ~pumpRunning~0 1)) (.cse3 (not (= ~systemActive~0 1))) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse3 .cse5) (or .cse0 .cse4 .cse3) (or .cse2 .cse1 .cse3 .cse5))) [2018-11-18 10:52:54,829 INFO L425 ceAbstractionStarter]: For program point L142-1(lines 123 147) no Hoare annotation was computed. [2018-11-18 10:52:54,829 INFO L421 ceAbstractionStarter]: At program point L137(line 137) the Hoare annotation is: (let ((.cse5 (not (= 1 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (and (not (= ~waterLevel~0 2)) (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse1) (or .cse5 .cse1 .cse2) (or .cse4 .cse0 .cse1 .cse3))) [2018-11-18 10:52:54,829 INFO L421 ceAbstractionStarter]: At program point L133(line 133) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= 0 ~pumpRunning~0)) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse5 (not (= 1 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse2 .cse1) (or .cse4 .cse5 .cse2) (or .cse5 .cse2 .cse3))) [2018-11-18 10:52:54,829 INFO L425 ceAbstractionStarter]: For program point L131(lines 131 139) no Hoare annotation was computed. [2018-11-18 10:52:54,829 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 115 121) no Hoare annotation was computed. [2018-11-18 10:52:54,829 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 115 121) the Hoare annotation is: true [2018-11-18 10:52:54,829 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 261 324) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 10:52:54,829 INFO L421 ceAbstractionStarter]: At program point L283(line 283) the Hoare annotation is: (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse1 (= 0 ~pumpRunning~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse4 (= ~methaneLevelCritical~0 1)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and (not (= ~waterLevel~0 2)) .cse0 .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse3 .cse2) (and .cse1 .cse4 .cse2) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse3 .cse4 .cse2))) [2018-11-18 10:52:54,829 INFO L421 ceAbstractionStarter]: At program point L314(lines 271 316) the Hoare annotation is: (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse1 (= 0 ~pumpRunning~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse4 (= ~methaneLevelCritical~0 1)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and (not (= ~waterLevel~0 2)) .cse0 .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse3 .cse2) (and .cse1 .cse4 .cse2) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse3 .cse4 .cse2))) [2018-11-18 10:52:54,830 INFO L425 ceAbstractionStarter]: For program point L281(lines 281 287) no Hoare annotation was computed. [2018-11-18 10:52:54,830 INFO L425 ceAbstractionStarter]: For program point L281-1(lines 281 287) no Hoare annotation was computed. [2018-11-18 10:52:54,830 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 261 324) no Hoare annotation was computed. [2018-11-18 10:52:54,830 INFO L425 ceAbstractionStarter]: For program point L273(lines 273 277) no Hoare annotation was computed. [2018-11-18 10:52:54,830 INFO L425 ceAbstractionStarter]: For program point L271-1(lines 271 316) no Hoare annotation was computed. [2018-11-18 10:52:54,830 INFO L421 ceAbstractionStarter]: At program point L317(lines 270 318) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 10:52:54,830 INFO L425 ceAbstractionStarter]: For program point L307(lines 307 311) no Hoare annotation was computed. [2018-11-18 10:52:54,830 INFO L421 ceAbstractionStarter]: At program point L307-2(lines 301 312) the Hoare annotation is: (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse1 (= 0 ~pumpRunning~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse4 (= ~methaneLevelCritical~0 1)) (.cse2 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse1 .cse4 .cse2) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse3 .cse4 .cse2))) [2018-11-18 10:52:54,830 INFO L425 ceAbstractionStarter]: For program point L272(lines 271 316) no Hoare annotation was computed. [2018-11-18 10:52:54,830 INFO L425 ceAbstractionStarter]: For program point L301(lines 301 312) no Hoare annotation was computed. [2018-11-18 10:52:54,830 INFO L421 ceAbstractionStarter]: At program point L293(line 293) the Hoare annotation is: (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse1 (= 0 ~pumpRunning~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse4 (= ~methaneLevelCritical~0 1)) (.cse2 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse1 .cse4 .cse2) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse3 .cse4 .cse2))) [2018-11-18 10:52:54,830 INFO L425 ceAbstractionStarter]: For program point L291(lines 291 297) no Hoare annotation was computed. [2018-11-18 10:52:54,830 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 261 324) no Hoare annotation was computed. [2018-11-18 10:52:54,830 INFO L425 ceAbstractionStarter]: For program point L291-1(lines 291 297) no Hoare annotation was computed. [2018-11-18 10:52:54,830 INFO L421 ceAbstractionStarter]: At program point activatePump__wrappee__highWaterSensorENTRY(lines 148 155) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= 0 ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 10:52:54,830 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorEXIT(lines 148 155) no Hoare annotation was computed. [2018-11-18 10:52:54,830 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorFINAL(lines 148 155) no Hoare annotation was computed. [2018-11-18 10:52:54,830 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:52:54,830 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~pumpRunning~0 |old(~pumpRunning~0)|) [2018-11-18 10:52:54,830 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:52:54,830 INFO L425 ceAbstractionStarter]: For program point L162-1(line 162) no Hoare annotation was computed. [2018-11-18 10:52:54,831 INFO L425 ceAbstractionStarter]: For program point activatePumpEXIT(lines 157 173) no Hoare annotation was computed. [2018-11-18 10:52:54,831 INFO L421 ceAbstractionStarter]: At program point activatePumpENTRY(lines 157 173) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= 0 ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 10:52:54,831 INFO L421 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2) (or .cse0 (and (= ~methaneLevelCritical~0 activatePump_~tmp~1) .cse2) .cse1 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 10:52:54,831 INFO L425 ceAbstractionStarter]: For program point L168-1(lines 157 173) no Hoare annotation was computed. [2018-11-18 10:52:54,831 INFO L425 ceAbstractionStarter]: For program point L164(lines 164 170) no Hoare annotation was computed. [2018-11-18 10:52:54,831 INFO L421 ceAbstractionStarter]: At program point L162(line 162) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= 0 ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 10:52:54,831 INFO L428 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 432 440) the Hoare annotation is: true [2018-11-18 10:52:54,831 INFO L425 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 432 440) no Hoare annotation was computed. [2018-11-18 10:52:54,831 INFO L425 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 432 440) no Hoare annotation was computed. [2018-11-18 10:52:54,831 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 238 256) no Hoare annotation was computed. [2018-11-18 10:52:54,831 INFO L425 ceAbstractionStarter]: For program point L247(lines 247 251) no Hoare annotation was computed. [2018-11-18 10:52:54,831 INFO L428 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 238 256) the Hoare annotation is: true [2018-11-18 10:52:54,831 INFO L428 ceAbstractionStarter]: At program point L245(line 245) the Hoare annotation is: true [2018-11-18 10:52:54,831 INFO L425 ceAbstractionStarter]: For program point L247-2(lines 247 251) no Hoare annotation was computed. [2018-11-18 10:52:54,831 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 238 256) no Hoare annotation was computed. [2018-11-18 10:52:54,831 INFO L425 ceAbstractionStarter]: For program point L245-1(line 245) no Hoare annotation was computed. [2018-11-18 10:52:54,832 INFO L421 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 388 399) the Hoare annotation is: (let ((.cse2 (= 0 ~methaneLevelCritical~0)) (.cse3 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse4 (not (= 1 ~pumpRunning~0))) (.cse5 (not (= |old(~methaneLevelCritical~0)| 1))) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1))) (.cse6 (= ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse4 .cse1 .cse3) (or .cse5 .cse6 .cse4 .cse1) (or .cse5 .cse0 .cse1 .cse6))) [2018-11-18 10:52:54,832 INFO L425 ceAbstractionStarter]: For program point L392-1(lines 388 399) no Hoare annotation was computed. [2018-11-18 10:52:54,832 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 388 399) no Hoare annotation was computed. [2018-11-18 10:52:54,832 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 457 486) no Hoare annotation was computed. [2018-11-18 10:52:54,832 INFO L425 ceAbstractionStarter]: For program point L471(lines 471 475) no Hoare annotation was computed. [2018-11-18 10:52:54,832 INFO L428 ceAbstractionStarter]: At program point L471-1(lines 471 475) the Hoare annotation is: true [2018-11-18 10:52:54,832 INFO L425 ceAbstractionStarter]: For program point L467-1(lines 467 481) no Hoare annotation was computed. [2018-11-18 10:52:54,832 INFO L428 ceAbstractionStarter]: At program point L467-3(lines 467 481) the Hoare annotation is: true [2018-11-18 10:52:54,832 INFO L428 ceAbstractionStarter]: At program point L463(line 463) the Hoare annotation is: true [2018-11-18 10:52:54,832 INFO L425 ceAbstractionStarter]: For program point L463-1(line 463) no Hoare annotation was computed. [2018-11-18 10:52:54,832 INFO L428 ceAbstractionStarter]: At program point L482(lines 457 486) the Hoare annotation is: true [2018-11-18 10:52:54,832 INFO L425 ceAbstractionStarter]: For program point L478(line 478) no Hoare annotation was computed. [2018-11-18 10:52:54,832 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 457 486) the Hoare annotation is: true [2018-11-18 10:52:54,833 INFO L425 ceAbstractionStarter]: For program point L468(line 468) no Hoare annotation was computed. [2018-11-18 10:52:54,833 INFO L428 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 400 408) the Hoare annotation is: true [2018-11-18 10:52:54,833 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 400 408) no Hoare annotation was computed. [2018-11-18 10:52:54,833 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 400 408) no Hoare annotation was computed. [2018-11-18 10:52:54,833 INFO L421 ceAbstractionStarter]: At program point L97(line 97) the Hoare annotation is: (let ((.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~pumpRunning~0 1)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse6 (= 1 ~waterLevel~0)) (.cse2 (not (= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse7 (not (= |old(~waterLevel~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse3 .cse5) (or .cse6 .cse2 .cse3 .cse7 .cse5) (or .cse0 .cse4 .cse3) (or .cse1 .cse2 .cse3 .cse5) (or .cse0 .cse6 .cse2 .cse3 .cse7))) [2018-11-18 10:52:54,833 INFO L425 ceAbstractionStarter]: For program point L95(lines 94 113) no Hoare annotation was computed. [2018-11-18 10:52:54,833 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 91 114) the Hoare annotation is: (let ((.cse8 (= |old(~waterLevel~0)| 2)) (.cse9 (not (= ~waterLevel~0 2))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse7 (= 0 ~pumpRunning~0)) (.cse1 (= ~pumpRunning~0 1)) (.cse10 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse5 (= 1 ~waterLevel~0)) (.cse2 (not (= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse6 (not (= |old(~waterLevel~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse3 .cse6) (or .cse0 .cse4 .cse3 .cse7) (or .cse0 .cse8 .cse4 .cse3 .cse9) (or .cse9 .cse8 .cse2 .cse3 .cse10) (or .cse8 .cse4 .cse3 .cse10 .cse9) (or .cse5 .cse2 .cse3 .cse6 .cse10) (or .cse4 .cse5 .cse3 .cse6 .cse10) (or .cse0 .cse8 .cse2 .cse3 .cse9) (or .cse4 .cse3 .cse7 .cse10) (or .cse1 .cse2 .cse3 .cse10) (or .cse0 .cse5 .cse2 .cse3 .cse6))) [2018-11-18 10:52:54,833 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 91 114) no Hoare annotation was computed. [2018-11-18 10:52:54,833 INFO L421 ceAbstractionStarter]: At program point L104(line 104) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse8 (= |old(~waterLevel~0)| 2)) (.cse9 (not (= ~waterLevel~0 2))) (.cse5 (= 1 ~waterLevel~0)) (.cse6 (not (= |old(~waterLevel~0)| 1))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse7 (= 0 ~pumpRunning~0)) (.cse2 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (= ~pumpRunning~0 1)) (.cse3 (not (= ~systemActive~0 1))) (.cse10 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse3 .cse6) (or .cse0 .cse4 .cse3 .cse7) (or .cse0 .cse8 .cse4 .cse3 .cse9) (or .cse8 .cse4 .cse3 .cse10 .cse9) (or .cse4 .cse5 .cse3 .cse6 .cse10) (or .cse4 .cse3 .cse7 .cse10) (or .cse2 .cse1 .cse3 .cse10))) [2018-11-18 10:52:54,833 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 91 114) no Hoare annotation was computed. [2018-11-18 10:52:54,833 INFO L421 ceAbstractionStarter]: At program point L102(lines 102 108) the Hoare annotation is: (let ((.cse7 (= 1 ~waterLevel~0)) (.cse8 (not (= |old(~waterLevel~0)| 1))) (.cse10 (= |old(~waterLevel~0)| 2)) (.cse4 (not (= ~waterLevel~0 2))) (.cse9 (not (= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~pumpRunning~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse5 (= 0 ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5)) (or .cse6 .cse0 .cse7 .cse2 .cse8) (or .cse6 .cse1 .cse9 .cse2) (or .cse7 .cse0 .cse2 .cse8 .cse3) (or .cse6 .cse10 .cse0 .cse4 .cse2) (or .cse10 .cse0 .cse4 .cse2 .cse3) (or .cse9 .cse1 .cse2 .cse3) (or .cse6 .cse0 .cse1 .cse2 .cse5))) [2018-11-18 10:52:54,833 INFO L421 ceAbstractionStarter]: At program point L351(line 351) the Hoare annotation is: (let ((.cse0 (not (= 1 ~pumpRunning~0))) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse3 .cse4 .cse1) (or (= ~waterLevel~0 2) .cse4 .cse1 .cse2))) [2018-11-18 10:52:54,833 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification3_spec__1EXIT(lines 328 360) no Hoare annotation was computed. [2018-11-18 10:52:54,833 INFO L425 ceAbstractionStarter]: For program point L347(lines 347 353) no Hoare annotation was computed. [2018-11-18 10:52:54,834 INFO L428 ceAbstractionStarter]: At program point __utac_acc__Specification3_spec__1ENTRY(lines 328 360) the Hoare annotation is: true [2018-11-18 10:52:54,834 INFO L421 ceAbstractionStarter]: At program point L345(line 345) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse3 (not (= 0 ~pumpRunning~0))) (.cse4 (= ~waterLevel~0 2)) (.cse1 (not (= 1 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1))) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2) (or .cse4 .cse3 .cse2 .cse5) (or .cse4 .cse1 .cse2 .cse5))) [2018-11-18 10:52:54,834 INFO L425 ceAbstractionStarter]: For program point L345-1(line 345) no Hoare annotation was computed. [2018-11-18 10:52:54,834 INFO L425 ceAbstractionStarter]: For program point L343(lines 343 356) no Hoare annotation was computed. [2018-11-18 10:52:54,834 INFO L425 ceAbstractionStarter]: For program point L343-1(lines 328 360) no Hoare annotation was computed. [2018-11-18 10:52:54,834 INFO L421 ceAbstractionStarter]: At program point L341(line 341) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 ~pumpRunning~0)) .cse1) (or .cse0 (not (= 0 ~pumpRunning~0)) .cse1))) [2018-11-18 10:52:54,834 INFO L425 ceAbstractionStarter]: For program point L341-1(line 341) no Hoare annotation was computed. [2018-11-18 10:52:54,834 INFO L425 ceAbstractionStarter]: For program point L337(lines 337 357) no Hoare annotation was computed. [2018-11-18 10:52:54,834 INFO L428 ceAbstractionStarter]: At program point L335(line 335) the Hoare annotation is: true [2018-11-18 10:52:54,834 INFO L425 ceAbstractionStarter]: For program point L335-1(line 335) no Hoare annotation was computed. [2018-11-18 10:52:54,834 INFO L425 ceAbstractionStarter]: For program point L368-1(lines 364 375) no Hoare annotation was computed. [2018-11-18 10:52:54,834 INFO L421 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 364 375) the Hoare annotation is: (let ((.cse0 (= 1 ~waterLevel~0)) (.cse1 (not (= 1 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= |old(~waterLevel~0)| 1)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 1)) .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 10:52:54,834 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 364 375) no Hoare annotation was computed. [2018-11-18 10:52:54,834 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 511 517) no Hoare annotation was computed. [2018-11-18 10:52:54,834 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 511 517) the Hoare annotation is: true [2018-11-18 10:52:54,834 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:52:54,834 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1)) [2018-11-18 10:52:54,834 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:52:54,835 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:52:54,835 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 376 387) no Hoare annotation was computed. [2018-11-18 10:52:54,835 INFO L425 ceAbstractionStarter]: For program point L380-1(lines 376 387) no Hoare annotation was computed. [2018-11-18 10:52:54,835 INFO L421 ceAbstractionStarter]: At program point waterRiseENTRY(lines 376 387) the Hoare annotation is: (let ((.cse5 (not (= 1 ~pumpRunning~0))) (.cse7 (= |old(~waterLevel~0)| 2)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse8 (not (= ~waterLevel~0 2))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (= 1 ~waterLevel~0)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= |old(~waterLevel~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 .cse2 .cse3 .cse4) (or .cse6 .cse7 .cse5 .cse2 .cse8) (or .cse6 .cse1 .cse5 .cse2 .cse3) (or .cse8 .cse7 .cse5 .cse2 .cse4) (or .cse6 .cse7 .cse0 .cse2 .cse8) (or .cse7 .cse0 .cse2 .cse4 .cse8) (or .cse6 .cse0 .cse1 .cse2 .cse3))) [2018-11-18 10:52:54,835 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 918 925) no Hoare annotation was computed. [2018-11-18 10:52:54,835 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 918 925) the Hoare annotation is: true [2018-11-18 10:52:54,835 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 922) no Hoare annotation was computed. [2018-11-18 10:52:54,835 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 918 925) no Hoare annotation was computed. [2018-11-18 10:52:54,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:52:54 BoogieIcfgContainer [2018-11-18 10:52:54,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:52:54,849 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:52:54,849 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:52:54,849 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:52:54,850 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:52:48" (3/4) ... [2018-11-18 10:52:54,853 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 10:52:54,861 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-18 10:52:54,861 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-18 10:52:54,862 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 10:52:54,862 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-18 10:52:54,862 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-18 10:52:54,862 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-18 10:52:54,862 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-18 10:52:54,862 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-18 10:52:54,862 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-18 10:52:54,862 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 10:52:54,862 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-18 10:52:54,862 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__highWaterSensor [2018-11-18 10:52:54,862 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 10:52:54,862 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-18 10:52:54,862 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-18 10:52:54,863 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-18 10:52:54,863 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 10:52:54,863 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 10:52:54,863 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-18 10:52:54,863 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 10:52:54,863 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification3_spec__1 [2018-11-18 10:52:54,863 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-18 10:52:54,863 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-18 10:52:54,864 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 10:52:54,864 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-18 10:52:54,870 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2018-11-18 10:52:54,871 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 10:52:54,871 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 10:52:54,894 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(waterLevel == 2) && 0 == methaneLevelCritical) && 0 == pumpRunning) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || ((0 == methaneLevelCritical && pumpRunning == 1) && splverifierCounter == 0)) || ((0 == pumpRunning && methaneLevelCritical == 1) && splverifierCounter == 0)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || ((pumpRunning == 1 && methaneLevelCritical == 1) && splverifierCounter == 0) [2018-11-18 10:52:54,894 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 10:52:54,924 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7ceede50-9c20-46fe-a7e2-8111713fe373/bin-2019/utaipan/witness.graphml [2018-11-18 10:52:54,924 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:52:54,925 INFO L168 Benchmark]: Toolchain (without parser) took 7898.83 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 255.3 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -188.7 MB). Peak memory consumption was 66.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:52:54,925 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:52:54,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:52:54,925 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:52:54,926 INFO L168 Benchmark]: Boogie Preprocessor took 25.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:52:54,926 INFO L168 Benchmark]: RCFGBuilder took 556.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 55.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:52:54,926 INFO L168 Benchmark]: TraceAbstraction took 6825.99 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 121.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -88.9 MB). Peak memory consumption was 352.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:52:54,926 INFO L168 Benchmark]: Witness Printer took 75.06 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:52:54,928 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 390.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 556.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 55.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6825.99 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 121.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -88.9 MB). Peak memory consumption was 352.7 MB. Max. memory is 11.5 GB. * Witness Printer took 75.06 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 922]: 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: 271]: Loop Invariant Derived loop invariant: (((((((((!(waterLevel == 2) && 0 == methaneLevelCritical) && 0 == pumpRunning) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || ((0 == methaneLevelCritical && pumpRunning == 1) && splverifierCounter == 0)) || ((0 == pumpRunning && methaneLevelCritical == 1) && splverifierCounter == 0)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || ((pumpRunning == 1 && methaneLevelCritical == 1) && splverifierCounter == 0) - InvariantResult [Line: 467]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 457]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 270]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 26 procedures, 138 locations, 1 error locations. SAFE Result, 6.7s OverallTime, 12 OverallIterations, 2 TraceHistogramMax, 1.9s AutomataDifference, 0.0s DeadEndRemovalTime, 2.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1793 SDtfs, 770 SDslu, 6607 SDs, 0 SdLazy, 1052 SolverSat, 159 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 309 GetRequests, 219 SyntacticMatches, 6 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=877occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.5s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 66 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 56 LocationsWithAnnotation, 1652 PreInvPairs, 1756 NumberOfFragments, 1994 HoareAnnotationTreeSize, 1652 FomulaSimplifications, 1183 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 56 FomulaSimplificationsInter, 7802 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1034 NumberOfCodeBlocks, 1034 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1116 ConstructedInterpolants, 0 QuantifiedInterpolants, 160928 SizeOfPredicates, 6 NumberOfNonLiveVariables, 644 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 11/15 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...