./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product57_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_182cce51-e679-446e-a8bc-cd8fdbf6a2a7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_182cce51-e679-446e-a8bc-cd8fdbf6a2a7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_182cce51-e679-446e-a8bc-cd8fdbf6a2a7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_182cce51-e679-446e-a8bc-cd8fdbf6a2a7/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product57_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_182cce51-e679-446e-a8bc-cd8fdbf6a2a7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_182cce51-e679-446e-a8bc-cd8fdbf6a2a7/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 57406ed1e8515a3807c9750d676c6ccf8b3f94ad .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:46:48,516 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:46:48,517 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:46:48,523 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:46:48,523 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:46:48,524 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:46:48,525 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:46:48,526 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:46:48,527 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:46:48,528 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:46:48,528 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:46:48,528 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:46:48,529 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:46:48,530 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:46:48,530 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:46:48,531 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:46:48,531 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:46:48,532 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:46:48,534 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:46:48,535 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:46:48,535 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:46:48,536 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:46:48,538 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:46:48,538 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:46:48,538 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:46:48,539 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:46:48,540 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:46:48,540 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:46:48,541 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:46:48,541 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:46:48,541 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:46:48,542 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:46:48,542 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:46:48,542 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:46:48,542 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:46:48,543 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:46:48,543 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_182cce51-e679-446e-a8bc-cd8fdbf6a2a7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 14:46:48,551 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:46:48,551 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:46:48,552 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:46:48,552 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:46:48,552 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:46:48,552 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:46:48,552 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:46:48,553 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 14:46:48,553 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:46:48,553 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:46:48,553 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 14:46:48,553 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 14:46:48,553 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:46:48,554 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:46:48,554 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:46:48,554 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:46:48,554 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:46:48,554 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:46:48,554 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:46:48,555 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:46:48,555 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:46:48,555 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:46:48,555 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:46:48,555 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:46:48,555 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:46:48,555 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:46:48,556 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:46:48,556 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:46:48,556 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:46:48,556 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:46:48,556 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:46:48,556 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:46:48,556 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:46:48,556 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 14:46:48,557 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:46:48,557 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:46:48,557 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 14:46:48,560 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_182cce51-e679-446e-a8bc-cd8fdbf6a2a7/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 -> 57406ed1e8515a3807c9750d676c6ccf8b3f94ad [2018-11-18 14:46:48,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:46:48,592 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:46:48,595 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:46:48,596 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:46:48,596 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:46:48,597 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_182cce51-e679-446e-a8bc-cd8fdbf6a2a7/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product57_true-unreach-call_false-termination.cil.c [2018-11-18 14:46:48,635 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_182cce51-e679-446e-a8bc-cd8fdbf6a2a7/bin-2019/utaipan/data/bcaa95f49/fe5410a8eb2346b8a4c3fef40a294cdb/FLAG06820e155 [2018-11-18 14:46:49,070 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:46:49,071 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_182cce51-e679-446e-a8bc-cd8fdbf6a2a7/sv-benchmarks/c/product-lines/minepump_spec2_product57_true-unreach-call_false-termination.cil.c [2018-11-18 14:46:49,078 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_182cce51-e679-446e-a8bc-cd8fdbf6a2a7/bin-2019/utaipan/data/bcaa95f49/fe5410a8eb2346b8a4c3fef40a294cdb/FLAG06820e155 [2018-11-18 14:46:49,089 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_182cce51-e679-446e-a8bc-cd8fdbf6a2a7/bin-2019/utaipan/data/bcaa95f49/fe5410a8eb2346b8a4c3fef40a294cdb [2018-11-18 14:46:49,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:46:49,092 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:46:49,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:46:49,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:46:49,096 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:46:49,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:46:49" (1/1) ... [2018-11-18 14:46:49,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a1177d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:49, skipping insertion in model container [2018-11-18 14:46:49,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:46:49" (1/1) ... [2018-11-18 14:46:49,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:46:49,141 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:46:49,337 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:46:49,346 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:46:49,453 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:46:49,475 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:46:49,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:49 WrapperNode [2018-11-18 14:46:49,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:46:49,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:46:49,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:46:49,476 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:46:49,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:49" (1/1) ... [2018-11-18 14:46:49,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:49" (1/1) ... [2018-11-18 14:46:49,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:46:49,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:46:49,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:46:49,504 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:46:49,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:49" (1/1) ... [2018-11-18 14:46:49,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:49" (1/1) ... [2018-11-18 14:46:49,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:49" (1/1) ... [2018-11-18 14:46:49,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:49" (1/1) ... [2018-11-18 14:46:49,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:49" (1/1) ... [2018-11-18 14:46:49,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:49" (1/1) ... [2018-11-18 14:46:49,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:49" (1/1) ... [2018-11-18 14:46:49,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:46:49,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:46:49,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:46:49,536 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:46:49,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_182cce51-e679-446e-a8bc-cd8fdbf6a2a7/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 14:46:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-18 14:46:49,584 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-18 14:46:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:46:49,584 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:46:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-18 14:46:49,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-18 14:46:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:46:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-18 14:46:49,585 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-18 14:46:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-18 14:46:49,585 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-18 14:46:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-18 14:46:49,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-18 14:46:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 14:46:49,585 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 14:46:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-18 14:46:49,586 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-18 14:46:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-11-18 14:46:49,586 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-11-18 14:46:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-18 14:46:49,586 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-18 14:46:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2018-11-18 14:46:49,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2018-11-18 14:46:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2018-11-18 14:46:49,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2018-11-18 14:46:49,587 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-18 14:46:49,587 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-18 14:46:49,587 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-18 14:46:49,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-18 14:46:49,587 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 14:46:49,587 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 14:46:49,587 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 14:46:49,587 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 14:46:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-18 14:46:49,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-18 14:46:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-18 14:46:49,588 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-18 14:46:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 14:46:49,588 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 14:46:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 14:46:49,588 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 14:46:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-18 14:46:49,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-18 14:46:49,589 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-18 14:46:49,589 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-18 14:46:49,589 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-18 14:46:49,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-18 14:46:49,589 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-18 14:46:49,589 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-18 14:46:49,589 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-18 14:46:49,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-18 14:46:49,590 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-18 14:46:49,590 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-18 14:46:49,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:46:49,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:46:49,590 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 14:46:49,590 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 14:46:49,590 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-18 14:46:49,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-18 14:46:49,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:46:49,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:46:50,036 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:46:50,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:46:50 BoogieIcfgContainer [2018-11-18 14:46:50,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:46:50,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:46:50,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:46:50,039 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:46:50,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:46:49" (1/3) ... [2018-11-18 14:46:50,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6674f3eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:46:50, skipping insertion in model container [2018-11-18 14:46:50,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:49" (2/3) ... [2018-11-18 14:46:50,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6674f3eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:46:50, skipping insertion in model container [2018-11-18 14:46:50,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:46:50" (3/3) ... [2018-11-18 14:46:50,042 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product57_true-unreach-call_false-termination.cil.c [2018-11-18 14:46:50,047 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:46:50,053 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:46:50,062 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:46:50,083 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:46:50,084 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:46:50,084 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:46:50,084 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:46:50,084 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:46:50,084 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:46:50,084 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:46:50,084 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:46:50,098 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2018-11-18 14:46:50,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-18 14:46:50,105 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:50,105 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:46:50,107 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:50,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:50,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1491333814, now seen corresponding path program 1 times [2018-11-18 14:46:50,112 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:46:50,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:50,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:50,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:50,141 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:46:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:46:50,315 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 14:46:50,317 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:46:50,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:46:50,317 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:46:50,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:46:50,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:46:50,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:46:50,330 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 2 states. [2018-11-18 14:46:50,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:46:50,360 INFO L93 Difference]: Finished difference Result 290 states and 357 transitions. [2018-11-18 14:46:50,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:46:50,361 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2018-11-18 14:46:50,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:46:50,370 INFO L225 Difference]: With dead ends: 290 [2018-11-18 14:46:50,370 INFO L226 Difference]: Without dead ends: 147 [2018-11-18 14:46:50,373 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 14:46:50,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-11-18 14:46:50,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2018-11-18 14:46:50,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-11-18 14:46:50,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 172 transitions. [2018-11-18 14:46:50,412 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 172 transitions. Word has length 51 [2018-11-18 14:46:50,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:46:50,412 INFO L480 AbstractCegarLoop]: Abstraction has 147 states and 172 transitions. [2018-11-18 14:46:50,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:46:50,412 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 172 transitions. [2018-11-18 14:46:50,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 14:46:50,415 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:50,415 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:46:50,415 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:50,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:50,415 INFO L82 PathProgramCache]: Analyzing trace with hash 408956464, now seen corresponding path program 1 times [2018-11-18 14:46:50,415 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:46:50,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:50,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:50,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:50,416 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:46:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:46:50,507 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 14:46:50,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:46:50,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:46:50,507 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:46:50,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:46:50,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:46:50,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:46:50,509 INFO L87 Difference]: Start difference. First operand 147 states and 172 transitions. Second operand 3 states. [2018-11-18 14:46:50,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:46:50,526 INFO L93 Difference]: Finished difference Result 237 states and 277 transitions. [2018-11-18 14:46:50,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:46:50,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2018-11-18 14:46:50,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:46:50,528 INFO L225 Difference]: With dead ends: 237 [2018-11-18 14:46:50,528 INFO L226 Difference]: Without dead ends: 137 [2018-11-18 14:46:50,530 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 14:46:50,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-11-18 14:46:50,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2018-11-18 14:46:50,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-11-18 14:46:50,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 159 transitions. [2018-11-18 14:46:50,541 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 159 transitions. Word has length 53 [2018-11-18 14:46:50,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:46:50,541 INFO L480 AbstractCegarLoop]: Abstraction has 137 states and 159 transitions. [2018-11-18 14:46:50,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:46:50,542 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 159 transitions. [2018-11-18 14:46:50,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-18 14:46:50,543 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:50,543 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:46:50,544 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:50,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:50,544 INFO L82 PathProgramCache]: Analyzing trace with hash -2079283176, now seen corresponding path program 1 times [2018-11-18 14:46:50,544 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:46:50,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:50,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:50,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:50,545 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:46:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:46:50,650 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 14:46:50,650 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:46:50,651 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:46:50,651 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:46:50,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:46:50,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:46:50,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:46:50,652 INFO L87 Difference]: Start difference. First operand 137 states and 159 transitions. Second operand 7 states. [2018-11-18 14:46:50,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:46:50,942 INFO L93 Difference]: Finished difference Result 246 states and 291 transitions. [2018-11-18 14:46:50,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 14:46:50,942 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2018-11-18 14:46:50,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:46:50,943 INFO L225 Difference]: With dead ends: 246 [2018-11-18 14:46:50,943 INFO L226 Difference]: Without dead ends: 137 [2018-11-18 14:46:50,944 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 14:46:50,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-11-18 14:46:50,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2018-11-18 14:46:50,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-11-18 14:46:50,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 158 transitions. [2018-11-18 14:46:50,955 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 158 transitions. Word has length 57 [2018-11-18 14:46:50,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:46:50,956 INFO L480 AbstractCegarLoop]: Abstraction has 137 states and 158 transitions. [2018-11-18 14:46:50,956 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:46:50,956 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 158 transitions. [2018-11-18 14:46:50,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-18 14:46:50,958 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:50,958 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:46:50,958 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:50,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:50,958 INFO L82 PathProgramCache]: Analyzing trace with hash -631793466, now seen corresponding path program 1 times [2018-11-18 14:46:50,959 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:46:50,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:50,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:50,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:50,960 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:46:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:46:51,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:46:51,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:46:51,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:46:51,043 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:46:51,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:46:51,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:46:51,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:46:51,044 INFO L87 Difference]: Start difference. First operand 137 states and 158 transitions. Second operand 5 states. [2018-11-18 14:46:51,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:46:51,376 INFO L93 Difference]: Finished difference Result 346 states and 417 transitions. [2018-11-18 14:46:51,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 14:46:51,376 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2018-11-18 14:46:51,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:46:51,378 INFO L225 Difference]: With dead ends: 346 [2018-11-18 14:46:51,378 INFO L226 Difference]: Without dead ends: 237 [2018-11-18 14:46:51,379 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:46:51,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2018-11-18 14:46:51,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 218. [2018-11-18 14:46:51,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2018-11-18 14:46:51,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 250 transitions. [2018-11-18 14:46:51,395 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 250 transitions. Word has length 70 [2018-11-18 14:46:51,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:46:51,396 INFO L480 AbstractCegarLoop]: Abstraction has 218 states and 250 transitions. [2018-11-18 14:46:51,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:46:51,396 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 250 transitions. [2018-11-18 14:46:51,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-18 14:46:51,397 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:51,398 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 14:46:51,398 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:51,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:51,398 INFO L82 PathProgramCache]: Analyzing trace with hash -650650828, now seen corresponding path program 1 times [2018-11-18 14:46:51,398 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:46:51,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:51,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:51,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:51,399 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:46:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:46:51,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:46:51,478 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:46:51,478 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 14:46:51,478 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:46:51,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 14:46:51,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 14:46:51,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 14:46:51,479 INFO L87 Difference]: Start difference. First operand 218 states and 250 transitions. Second operand 4 states. [2018-11-18 14:46:51,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:46:51,742 INFO L93 Difference]: Finished difference Result 727 states and 889 transitions. [2018-11-18 14:46:51,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 14:46:51,744 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2018-11-18 14:46:51,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:46:51,748 INFO L225 Difference]: With dead ends: 727 [2018-11-18 14:46:51,748 INFO L226 Difference]: Without dead ends: 537 [2018-11-18 14:46:51,749 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 14:46:51,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2018-11-18 14:46:51,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 525. [2018-11-18 14:46:51,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2018-11-18 14:46:51,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 629 transitions. [2018-11-18 14:46:51,785 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 629 transitions. Word has length 84 [2018-11-18 14:46:51,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:46:51,785 INFO L480 AbstractCegarLoop]: Abstraction has 525 states and 629 transitions. [2018-11-18 14:46:51,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 14:46:51,785 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 629 transitions. [2018-11-18 14:46:51,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-18 14:46:51,787 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:51,787 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 14:46:51,787 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:51,787 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:51,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1676142827, now seen corresponding path program 1 times [2018-11-18 14:46:51,788 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:46:51,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:51,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:51,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:51,789 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:46:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:46:51,878 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 14:46:51,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:46:51,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 14:46:51,878 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:46:51,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:46:51,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:46:51,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:46:51,879 INFO L87 Difference]: Start difference. First operand 525 states and 629 transitions. Second operand 6 states. [2018-11-18 14:46:52,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:46:52,028 INFO L93 Difference]: Finished difference Result 1476 states and 1823 transitions. [2018-11-18 14:46:52,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:46:52,029 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2018-11-18 14:46:52,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:46:52,032 INFO L225 Difference]: With dead ends: 1476 [2018-11-18 14:46:52,032 INFO L226 Difference]: Without dead ends: 979 [2018-11-18 14:46:52,034 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 14:46:52,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2018-11-18 14:46:52,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 963. [2018-11-18 14:46:52,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2018-11-18 14:46:52,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1148 transitions. [2018-11-18 14:46:52,074 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1148 transitions. Word has length 84 [2018-11-18 14:46:52,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:46:52,074 INFO L480 AbstractCegarLoop]: Abstraction has 963 states and 1148 transitions. [2018-11-18 14:46:52,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:46:52,075 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1148 transitions. [2018-11-18 14:46:52,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-18 14:46:52,076 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:52,076 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:46:52,076 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:52,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:52,077 INFO L82 PathProgramCache]: Analyzing trace with hash -642266663, now seen corresponding path program 1 times [2018-11-18 14:46:52,077 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:46:52,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:52,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:52,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:52,078 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:46:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:46:52,169 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 14:46:52,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:46:52,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:46:52,169 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:46:52,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:46:52,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:46:52,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:46:52,170 INFO L87 Difference]: Start difference. First operand 963 states and 1148 transitions. Second operand 7 states. [2018-11-18 14:46:52,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:46:52,645 INFO L93 Difference]: Finished difference Result 1987 states and 2433 transitions. [2018-11-18 14:46:52,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 14:46:52,646 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2018-11-18 14:46:52,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:46:52,648 INFO L225 Difference]: With dead ends: 1987 [2018-11-18 14:46:52,649 INFO L226 Difference]: Without dead ends: 1052 [2018-11-18 14:46:52,650 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:46:52,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2018-11-18 14:46:52,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 960. [2018-11-18 14:46:52,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 960 states. [2018-11-18 14:46:52,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1139 transitions. [2018-11-18 14:46:52,682 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1139 transitions. Word has length 88 [2018-11-18 14:46:52,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:46:52,683 INFO L480 AbstractCegarLoop]: Abstraction has 960 states and 1139 transitions. [2018-11-18 14:46:52,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:46:52,683 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1139 transitions. [2018-11-18 14:46:52,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-11-18 14:46:52,685 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:52,685 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:46:52,685 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:52,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:52,685 INFO L82 PathProgramCache]: Analyzing trace with hash -2005697332, now seen corresponding path program 1 times [2018-11-18 14:46:52,685 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:46:52,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:52,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:52,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:52,686 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:46:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:46:52,741 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 14:46:52,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:46:52,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 14:46:52,742 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:46:52,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:46:52,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:46:52,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:46:52,743 INFO L87 Difference]: Start difference. First operand 960 states and 1139 transitions. Second operand 6 states. [2018-11-18 14:46:52,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:46:52,778 INFO L93 Difference]: Finished difference Result 1934 states and 2366 transitions. [2018-11-18 14:46:52,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 14:46:52,778 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-11-18 14:46:52,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:46:52,782 INFO L225 Difference]: With dead ends: 1934 [2018-11-18 14:46:52,782 INFO L226 Difference]: Without dead ends: 1002 [2018-11-18 14:46:52,783 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:46:52,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2018-11-18 14:46:52,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 990. [2018-11-18 14:46:52,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 990 states. [2018-11-18 14:46:52,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1171 transitions. [2018-11-18 14:46:52,811 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1171 transitions. Word has length 104 [2018-11-18 14:46:52,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:46:52,811 INFO L480 AbstractCegarLoop]: Abstraction has 990 states and 1171 transitions. [2018-11-18 14:46:52,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:46:52,811 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1171 transitions. [2018-11-18 14:46:52,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-11-18 14:46:52,813 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:52,813 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:46:52,814 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:52,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:52,814 INFO L82 PathProgramCache]: Analyzing trace with hash -77424630, now seen corresponding path program 1 times [2018-11-18 14:46:52,814 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:46:52,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:52,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:52,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:52,815 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:46:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:46:52,884 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 14:46:52,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:46:52,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 14:46:52,885 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:46:52,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 14:46:52,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 14:46:52,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:46:52,885 INFO L87 Difference]: Start difference. First operand 990 states and 1171 transitions. Second operand 8 states. [2018-11-18 14:46:52,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:46:52,924 INFO L93 Difference]: Finished difference Result 1756 states and 2126 transitions. [2018-11-18 14:46:52,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:46:52,925 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 104 [2018-11-18 14:46:52,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:46:52,927 INFO L225 Difference]: With dead ends: 1756 [2018-11-18 14:46:52,927 INFO L226 Difference]: Without dead ends: 794 [2018-11-18 14:46:52,929 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 14:46:52,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2018-11-18 14:46:52,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 794. [2018-11-18 14:46:52,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 794 states. [2018-11-18 14:46:52,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 927 transitions. [2018-11-18 14:46:52,950 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 927 transitions. Word has length 104 [2018-11-18 14:46:52,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:46:52,951 INFO L480 AbstractCegarLoop]: Abstraction has 794 states and 927 transitions. [2018-11-18 14:46:52,951 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 14:46:52,951 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 927 transitions. [2018-11-18 14:46:52,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-11-18 14:46:52,953 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:52,953 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:46:52,953 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:52,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:52,953 INFO L82 PathProgramCache]: Analyzing trace with hash 755284911, now seen corresponding path program 1 times [2018-11-18 14:46:52,953 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:46:52,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:52,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:52,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:52,954 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:46:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:46:53,053 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 14:46:53,053 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:46:53,053 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:46:53,054 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2018-11-18 14:46:53,055 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [19], [31], [35], [37], [38], [41], [56], [59], [60], [64], [65], [67], [71], [77], [81], [85], [88], [93], [96], [101], [104], [119], [120], [123], [125], [128], [130], [133], [136], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [170], [172], [173], [178], [180], [186], [190], [224], [225], [233], [237], [240], [242], [245], [255], [258], [262], [263], [266], [267], [268], [269], [270], [271], [272], [273], [274], [278], [279], [280], [282], [283], [290], [291], [292], [293], [294], [295], [296], [300], [301], [302], [303], [304], [306], [307], [308], [309], [310], [311], [314], [315], [316], [322], [323], [324], [326], [327], [328], [329] [2018-11-18 14:46:53,080 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:46:53,080 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:46:53,483 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 14:46:53,484 INFO L272 AbstractInterpreter]: Visited 81 different actions 81 times. Never merged. Never widened. Performed 2675 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2675 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 134 variables. [2018-11-18 14:46:53,497 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:53,497 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 14:46:53,694 INFO L227 lantSequenceWeakener]: Weakened 79 states. On average, predicates are now at 96.66% of their original sizes. [2018-11-18 14:46:53,694 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 14:46:53,810 INFO L415 sIntCurrentIteration]: We unified 107 AI predicates to 107 [2018-11-18 14:46:53,810 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 14:46:53,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 14:46:53,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [13] total 30 [2018-11-18 14:46:53,811 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:46:53,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-18 14:46:53,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-18 14:46:53,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2018-11-18 14:46:53,812 INFO L87 Difference]: Start difference. First operand 794 states and 927 transitions. Second operand 19 states. [2018-11-18 14:46:58,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:46:58,864 INFO L93 Difference]: Finished difference Result 1996 states and 2363 transitions. [2018-11-18 14:46:58,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-18 14:46:58,864 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 108 [2018-11-18 14:46:58,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:46:58,868 INFO L225 Difference]: With dead ends: 1996 [2018-11-18 14:46:58,869 INFO L226 Difference]: Without dead ends: 1230 [2018-11-18 14:46:58,871 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 117 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=688, Unknown=0, NotChecked=0, Total=812 [2018-11-18 14:46:58,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2018-11-18 14:46:58,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1224. [2018-11-18 14:46:58,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1224 states. [2018-11-18 14:46:58,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1411 transitions. [2018-11-18 14:46:58,926 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1411 transitions. Word has length 108 [2018-11-18 14:46:58,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:46:58,926 INFO L480 AbstractCegarLoop]: Abstraction has 1224 states and 1411 transitions. [2018-11-18 14:46:58,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-18 14:46:58,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1411 transitions. [2018-11-18 14:46:58,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-11-18 14:46:58,930 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:58,930 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:46:58,930 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:58,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:58,930 INFO L82 PathProgramCache]: Analyzing trace with hash -921117383, now seen corresponding path program 1 times [2018-11-18 14:46:58,931 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:46:58,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:58,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:58,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:58,931 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:46:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:46:59,000 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-11-18 14:46:59,001 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:46:59,001 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:46:59,001 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:46:59,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:46:59,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:46:59,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:46:59,002 INFO L87 Difference]: Start difference. First operand 1224 states and 1411 transitions. Second operand 3 states. [2018-11-18 14:46:59,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:46:59,059 INFO L93 Difference]: Finished difference Result 1732 states and 2038 transitions. [2018-11-18 14:46:59,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:46:59,059 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2018-11-18 14:46:59,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:46:59,066 INFO L225 Difference]: With dead ends: 1732 [2018-11-18 14:46:59,066 INFO L226 Difference]: Without dead ends: 1729 [2018-11-18 14:46:59,067 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 14:46:59,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2018-11-18 14:46:59,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1638. [2018-11-18 14:46:59,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1638 states. [2018-11-18 14:46:59,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 1931 transitions. [2018-11-18 14:46:59,147 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 1931 transitions. Word has length 162 [2018-11-18 14:46:59,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:46:59,148 INFO L480 AbstractCegarLoop]: Abstraction has 1638 states and 1931 transitions. [2018-11-18 14:46:59,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:46:59,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 1931 transitions. [2018-11-18 14:46:59,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-11-18 14:46:59,153 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:59,153 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:46:59,154 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:59,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:59,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1639566746, now seen corresponding path program 1 times [2018-11-18 14:46:59,154 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:46:59,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:59,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:59,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:59,155 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:46:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:46:59,287 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 49 proven. 12 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-11-18 14:46:59,288 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:46:59,288 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:46:59,288 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 224 with the following transitions: [2018-11-18 14:46:59,288 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [19], [20], [22], [25], [29], [30], [31], [35], [37], [38], [41], [44], [46], [52], [56], [59], [60], [64], [65], [66], [67], [71], [77], [81], [85], [88], [91], [93], [96], [99], [101], [104], [119], [120], [121], [122], [123], [125], [128], [130], [133], [136], [139], [145], [147], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [170], [172], [173], [178], [180], [183], [186], [190], [196], [224], [225], [228], [232], [233], [237], [240], [242], [245], [252], [255], [258], [262], [263], [266], [267], [268], [269], [270], [271], [272], [273], [274], [276], [277], [278], [279], [280], [282], [283], [284], [285], [288], [289], [290], [291], [292], [293], [294], [295], [296], [297], [300], [301], [302], [303], [304], [306], [307], [308], [309], [310], [311], [312], [313], [314], [315], [316], [317], [322], [323], [324], [326], [327], [328], [329], [332], [333] [2018-11-18 14:46:59,291 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:46:59,291 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:47:01,571 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:47:01,571 INFO L272 AbstractInterpreter]: Visited 139 different actions 1230 times. Merged at 23 different actions 136 times. Widened at 1 different actions 1 times. Performed 43262 root evaluator evaluations with a maximum evaluation depth of 5. Performed 43262 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 34 fixpoints after 6 different actions. Largest state had 134 variables. [2018-11-18 14:47:01,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:47:01,579 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:47:01,579 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:47:01,579 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_182cce51-e679-446e-a8bc-cd8fdbf6a2a7/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 14:47:01,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:47:01,586 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:47:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:47:01,690 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:47:01,974 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 104 proven. 19 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 14:47:01,974 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:47:02,573 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 54 proven. 26 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-11-18 14:47:02,599 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 14:47:02,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 22 [2018-11-18 14:47:02,600 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 14:47:02,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 14:47:02,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 14:47:02,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2018-11-18 14:47:02,601 INFO L87 Difference]: Start difference. First operand 1638 states and 1931 transitions. Second operand 16 states. [2018-11-18 14:47:04,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:47:04,463 INFO L93 Difference]: Finished difference Result 4501 states and 6113 transitions. [2018-11-18 14:47:04,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-18 14:47:04,463 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 223 [2018-11-18 14:47:04,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:47:04,477 INFO L225 Difference]: With dead ends: 4501 [2018-11-18 14:47:04,478 INFO L226 Difference]: Without dead ends: 3293 [2018-11-18 14:47:04,483 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 441 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=327, Invalid=1155, Unknown=0, NotChecked=0, Total=1482 [2018-11-18 14:47:04,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3293 states. [2018-11-18 14:47:04,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3293 to 2572. [2018-11-18 14:47:04,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2572 states. [2018-11-18 14:47:04,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2572 states to 2572 states and 3074 transitions. [2018-11-18 14:47:04,641 INFO L78 Accepts]: Start accepts. Automaton has 2572 states and 3074 transitions. Word has length 223 [2018-11-18 14:47:04,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:47:04,641 INFO L480 AbstractCegarLoop]: Abstraction has 2572 states and 3074 transitions. [2018-11-18 14:47:04,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 14:47:04,641 INFO L276 IsEmpty]: Start isEmpty. Operand 2572 states and 3074 transitions. [2018-11-18 14:47:04,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-11-18 14:47:04,648 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:47:04,649 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:47:04,649 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:47:04,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:47:04,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1356308756, now seen corresponding path program 1 times [2018-11-18 14:47:04,649 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:47:04,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:47:04,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:47:04,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:47:04,650 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:47:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:47:04,768 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 46 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-11-18 14:47:04,768 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:47:04,768 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:47:04,768 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 228 with the following transitions: [2018-11-18 14:47:04,768 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [19], [20], [22], [25], [27], [29], [30], [31], [35], [37], [38], [41], [44], [46], [52], [56], [59], [60], [64], [65], [66], [67], [71], [77], [81], [85], [88], [91], [93], [96], [99], [101], [104], [119], [120], [121], [122], [123], [125], [128], [130], [133], [136], [139], [145], [147], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [170], [172], [173], [178], [180], [183], [186], [190], [196], [224], [225], [228], [232], [233], [237], [240], [242], [245], [252], [255], [258], [260], [262], [263], [266], [267], [268], [269], [270], [271], [272], [273], [274], [276], [277], [278], [279], [280], [282], [283], [284], [285], [288], [289], [290], [291], [292], [293], [294], [295], [296], [297], [300], [301], [302], [303], [304], [306], [307], [308], [309], [310], [311], [312], [313], [314], [315], [316], [317], [322], [323], [324], [326], [327], [328], [329], [332], [333] [2018-11-18 14:47:04,771 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:47:04,771 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:47:06,342 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:47:06,343 INFO L272 AbstractInterpreter]: Visited 141 different actions 1078 times. Merged at 26 different actions 125 times. Never widened. Performed 34164 root evaluator evaluations with a maximum evaluation depth of 5. Performed 34164 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 37 fixpoints after 8 different actions. Largest state had 134 variables. [2018-11-18 14:47:06,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:47:06,345 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:47:06,345 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:47:06,345 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_182cce51-e679-446e-a8bc-cd8fdbf6a2a7/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:47:06,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:47:06,353 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:47:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:47:06,434 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:47:06,486 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-11-18 14:47:06,486 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:47:06,717 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 46 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-11-18 14:47:06,733 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:47:06,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-11-18 14:47:06,733 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:47:06,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:47:06,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:47:06,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:47:06,734 INFO L87 Difference]: Start difference. First operand 2572 states and 3074 transitions. Second operand 6 states. [2018-11-18 14:47:06,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:47:06,794 INFO L93 Difference]: Finished difference Result 3350 states and 3979 transitions. [2018-11-18 14:47:06,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 14:47:06,795 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 227 [2018-11-18 14:47:06,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:47:06,800 INFO L225 Difference]: With dead ends: 3350 [2018-11-18 14:47:06,800 INFO L226 Difference]: Without dead ends: 1426 [2018-11-18 14:47:06,803 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 449 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-18 14:47:06,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2018-11-18 14:47:06,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1426. [2018-11-18 14:47:06,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1426 states. [2018-11-18 14:47:06,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 1641 transitions. [2018-11-18 14:47:06,849 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 1641 transitions. Word has length 227 [2018-11-18 14:47:06,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:47:06,850 INFO L480 AbstractCegarLoop]: Abstraction has 1426 states and 1641 transitions. [2018-11-18 14:47:06,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:47:06,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 1641 transitions. [2018-11-18 14:47:06,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-11-18 14:47:06,853 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:47:06,854 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:47:06,854 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:47:06,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:47:06,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1450270255, now seen corresponding path program 1 times [2018-11-18 14:47:06,854 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:47:06,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:47:06,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:47:06,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:47:06,855 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:47:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:47:06,968 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 60 proven. 24 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2018-11-18 14:47:06,968 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:47:06,968 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:47:06,968 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 280 with the following transitions: [2018-11-18 14:47:06,968 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [19], [20], [22], [25], [29], [30], [31], [35], [37], [38], [41], [44], [46], [52], [56], [59], [60], [63], [64], [65], [66], [67], [71], [77], [81], [85], [88], [91], [93], [96], [99], [101], [104], [119], [120], [121], [122], [123], [125], [128], [130], [133], [136], [139], [145], [147], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [168], [170], [172], [173], [176], [178], [180], [183], [186], [190], [196], [224], [225], [228], [232], [233], [237], [240], [242], [245], [248], [252], [255], [258], [262], [263], [266], [267], [268], [269], [270], [271], [272], [273], [274], [276], [277], [278], [279], [280], [282], [283], [284], [285], [288], [289], [290], [291], [292], [293], [294], [295], [296], [297], [300], [301], [302], [303], [304], [306], [307], [308], [309], [310], [311], [312], [313], [314], [315], [316], [317], [322], [323], [324], [326], [327], [328], [329], [330], [331], [332], [333] [2018-11-18 14:47:06,970 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:47:06,971 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:47:11,579 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:47:11,579 INFO L272 AbstractInterpreter]: Visited 145 different actions 3502 times. Merged at 40 different actions 875 times. Widened at 1 different actions 3 times. Performed 113209 root evaluator evaluations with a maximum evaluation depth of 5. Performed 113209 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 160 fixpoints after 13 different actions. Largest state had 134 variables. [2018-11-18 14:47:11,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:47:11,585 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:47:11,585 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:47:11,586 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_182cce51-e679-446e-a8bc-cd8fdbf6a2a7/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:47:11,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:47:11,591 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:47:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:47:11,680 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:47:11,751 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2018-11-18 14:47:11,751 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:47:12,016 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 60 proven. 24 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2018-11-18 14:47:12,040 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:47:12,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [11, 7] total 19 [2018-11-18 14:47:12,040 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:47:12,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:47:12,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:47:12,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2018-11-18 14:47:12,041 INFO L87 Difference]: Start difference. First operand 1426 states and 1641 transitions. Second operand 6 states. [2018-11-18 14:47:12,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:47:12,258 INFO L93 Difference]: Finished difference Result 2762 states and 3224 transitions. [2018-11-18 14:47:12,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 14:47:12,258 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 279 [2018-11-18 14:47:12,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:47:12,262 INFO L225 Difference]: With dead ends: 2762 [2018-11-18 14:47:12,262 INFO L226 Difference]: Without dead ends: 1424 [2018-11-18 14:47:12,264 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 547 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2018-11-18 14:47:12,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2018-11-18 14:47:12,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1416. [2018-11-18 14:47:12,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1416 states. [2018-11-18 14:47:12,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1605 transitions. [2018-11-18 14:47:12,305 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1605 transitions. Word has length 279 [2018-11-18 14:47:12,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:47:12,306 INFO L480 AbstractCegarLoop]: Abstraction has 1416 states and 1605 transitions. [2018-11-18 14:47:12,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:47:12,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1605 transitions. [2018-11-18 14:47:12,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-11-18 14:47:12,309 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:47:12,309 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:47:12,309 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:47:12,309 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:47:12,310 INFO L82 PathProgramCache]: Analyzing trace with hash -486462522, now seen corresponding path program 2 times [2018-11-18 14:47:12,310 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:47:12,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:47:12,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:47:12,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:47:12,310 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:47:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:47:12,386 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 53 proven. 15 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-18 14:47:12,387 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:47:12,387 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:47:12,387 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-18 14:47:12,387 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-18 14:47:12,387 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:47:12,387 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_182cce51-e679-446e-a8bc-cd8fdbf6a2a7/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:47:12,398 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 14:47:12,398 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-18 14:47:12,504 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-18 14:47:12,504 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 14:47:12,510 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:47:12,646 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-11-18 14:47:12,646 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:47:13,014 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 59 proven. 4 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-11-18 14:47:13,031 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:47:13,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 10] total 23 [2018-11-18 14:47:13,031 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:47:13,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 14:47:13,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 14:47:13,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2018-11-18 14:47:13,032 INFO L87 Difference]: Start difference. First operand 1416 states and 1605 transitions. Second operand 9 states. [2018-11-18 14:47:13,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:47:13,642 INFO L93 Difference]: Finished difference Result 2417 states and 2937 transitions. [2018-11-18 14:47:13,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 14:47:13,643 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 236 [2018-11-18 14:47:13,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:47:13,647 INFO L225 Difference]: With dead ends: 2417 [2018-11-18 14:47:13,647 INFO L226 Difference]: Without dead ends: 1437 [2018-11-18 14:47:13,649 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 462 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=727, Unknown=0, NotChecked=0, Total=870 [2018-11-18 14:47:13,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2018-11-18 14:47:13,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1121. [2018-11-18 14:47:13,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1121 states. [2018-11-18 14:47:13,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1256 transitions. [2018-11-18 14:47:13,744 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1256 transitions. Word has length 236 [2018-11-18 14:47:13,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:47:13,745 INFO L480 AbstractCegarLoop]: Abstraction has 1121 states and 1256 transitions. [2018-11-18 14:47:13,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 14:47:13,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1256 transitions. [2018-11-18 14:47:13,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2018-11-18 14:47:13,749 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:47:13,749 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:47:13,749 INFO L423 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:47:13,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:47:13,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1802152006, now seen corresponding path program 1 times [2018-11-18 14:47:13,751 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:47:13,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:47:13,751 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:47:13,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:47:13,752 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:47:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:47:13,816 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 89 proven. 29 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2018-11-18 14:47:13,816 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:47:13,816 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:47:13,816 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 299 with the following transitions: [2018-11-18 14:47:13,817 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [19], [31], [35], [37], [38], [41], [56], [59], [60], [63], [64], [65], [66], [67], [71], [77], [81], [85], [88], [91], [93], [96], [99], [101], [104], [119], [120], [123], [125], [128], [130], [133], [136], [139], [142], [145], [147], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [168], [170], [172], [173], [176], [178], [180], [186], [190], [196], [224], [225], [233], [237], [240], [242], [245], [248], [255], [258], [262], [263], [266], [267], [268], [269], [270], [271], [272], [273], [274], [278], [279], [280], [282], [283], [290], [291], [292], [293], [294], [295], [296], [297], [300], [301], [302], [303], [304], [306], [307], [308], [309], [310], [311], [314], [315], [316], [317], [322], [323], [324], [326], [327], [328], [329], [330], [331] [2018-11-18 14:47:13,818 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:47:13,818 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:47:16,819 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:47:16,819 INFO L272 AbstractInterpreter]: Visited 122 different actions 2185 times. Merged at 39 different actions 607 times. Widened at 1 different actions 3 times. Performed 80990 root evaluator evaluations with a maximum evaluation depth of 3. Performed 80990 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 120 fixpoints after 11 different actions. Largest state had 134 variables. [2018-11-18 14:47:16,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:47:16,826 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:47:16,826 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:47:16,826 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_182cce51-e679-446e-a8bc-cd8fdbf6a2a7/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:47:16,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:47:16,832 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:47:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:47:16,908 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:47:16,983 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-11-18 14:47:16,983 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:47:17,737 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 89 proven. 18 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2018-11-18 14:47:17,762 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:47:17,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 9] total 17 [2018-11-18 14:47:17,763 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:47:17,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 14:47:17,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 14:47:17,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2018-11-18 14:47:17,764 INFO L87 Difference]: Start difference. First operand 1121 states and 1256 transitions. Second operand 8 states. [2018-11-18 14:47:18,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:47:18,067 INFO L93 Difference]: Finished difference Result 1514 states and 1718 transitions. [2018-11-18 14:47:18,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:47:18,068 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 298 [2018-11-18 14:47:18,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:47:18,069 INFO L225 Difference]: With dead ends: 1514 [2018-11-18 14:47:18,069 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 14:47:18,071 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 577 SyntacticMatches, 8 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2018-11-18 14:47:18,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 14:47:18,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 14:47:18,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 14:47:18,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 14:47:18,072 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 298 [2018-11-18 14:47:18,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:47:18,072 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:47:18,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 14:47:18,072 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 14:47:18,072 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 14:47:18,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 14:47:18,165 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,343 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,344 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,395 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,396 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,398 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,399 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,400 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,400 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,401 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,402 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,405 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,407 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,408 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,410 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,412 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,412 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,413 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,413 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,414 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,415 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,416 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,416 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,418 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,419 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,420 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,422 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,422 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,424 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,427 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,428 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,431 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,435 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,436 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,436 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,438 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,439 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,439 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,441 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,443 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,444 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,444 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,446 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,447 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,447 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,448 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,448 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,449 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,451 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,464 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,467 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,608 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,609 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,610 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,611 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,612 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,613 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,613 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,614 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,615 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,617 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,618 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,620 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,621 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,623 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,624 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,624 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,626 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,627 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,628 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,712 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,713 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,716 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,717 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,717 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,718 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,721 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,725 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,727 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,728 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,728 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,728 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,731 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,731 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,731 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,732 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,733 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,735 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,736 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,736 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,737 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,737 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:47:18,868 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 27 [2018-11-18 14:47:19,280 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 41 [2018-11-18 14:47:19,406 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 44 [2018-11-18 14:47:19,553 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 33 [2018-11-18 14:47:20,526 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 39 [2018-11-18 14:47:21,013 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 48 [2018-11-18 14:47:21,144 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 40 [2018-11-18 14:47:21,574 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2018-11-18 14:47:21,574 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2018-11-18 14:47:21,574 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2018-11-18 14:47:21,574 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2018-11-18 14:47:21,574 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 68 76) no Hoare annotation was computed. [2018-11-18 14:47:21,574 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 266 288) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= 1 ~waterLevel~0) (= 0 ~methAndRunningLastTime~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 14:47:21,574 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 266 288) no Hoare annotation was computed. [2018-11-18 14:47:21,574 INFO L421 ceAbstractionStarter]: At program point L278(line 278) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= ~methaneLevelCritical~0 0) (= main_~tmp~0 1) (= 1 ~waterLevel~0) (= 0 ~methAndRunningLastTime~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 14:47:21,575 INFO L421 ceAbstractionStarter]: At program point L278-1(line 278) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= ~methaneLevelCritical~0 0) (= main_~tmp~0 1) (= 1 ~waterLevel~0) (= 0 ~methAndRunningLastTime~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 14:47:21,575 INFO L425 ceAbstractionStarter]: For program point L276(lines 276 283) no Hoare annotation was computed. [2018-11-18 14:47:21,575 INFO L425 ceAbstractionStarter]: For program point L276-1(lines 276 283) no Hoare annotation was computed. [2018-11-18 14:47:21,575 INFO L425 ceAbstractionStarter]: For program point L274(line 274) no Hoare annotation was computed. [2018-11-18 14:47:21,575 INFO L421 ceAbstractionStarter]: At program point L273(line 273) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= 1 ~waterLevel~0) (= 0 ~methAndRunningLastTime~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 14:47:21,575 INFO L421 ceAbstractionStarter]: At program point L272(line 272) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= 1 ~waterLevel~0) (= 0 ~methAndRunningLastTime~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 14:47:21,575 INFO L421 ceAbstractionStarter]: At program point L272-1(line 272) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= 1 ~waterLevel~0) (= 0 ~methAndRunningLastTime~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 14:47:21,575 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 266 288) no Hoare annotation was computed. [2018-11-18 14:47:21,575 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 464 472) no Hoare annotation was computed. [2018-11-18 14:47:21,575 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 464 472) the Hoare annotation is: true [2018-11-18 14:47:21,576 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 464 472) no Hoare annotation was computed. [2018-11-18 14:47:21,576 INFO L428 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 528 546) the Hoare annotation is: true [2018-11-18 14:47:21,576 INFO L425 ceAbstractionStarter]: For program point L537(lines 537 541) no Hoare annotation was computed. [2018-11-18 14:47:21,576 INFO L428 ceAbstractionStarter]: At program point L535(line 535) the Hoare annotation is: true [2018-11-18 14:47:21,576 INFO L425 ceAbstractionStarter]: For program point L537-2(lines 537 541) no Hoare annotation was computed. [2018-11-18 14:47:21,576 INFO L425 ceAbstractionStarter]: For program point L535-1(line 535) no Hoare annotation was computed. [2018-11-18 14:47:21,576 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 528 546) no Hoare annotation was computed. [2018-11-18 14:47:21,576 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 528 546) no Hoare annotation was computed. [2018-11-18 14:47:21,576 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2018-11-18 14:47:21,576 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2018-11-18 14:47:21,576 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 255 265) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= 1 ~waterLevel~0) (= 0 ~methAndRunningLastTime~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 14:47:21,576 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 255 265) no Hoare annotation was computed. [2018-11-18 14:47:21,576 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 255 265) no Hoare annotation was computed. [2018-11-18 14:47:21,577 INFO L421 ceAbstractionStarter]: At program point L260(line 260) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= 1 ~waterLevel~0) (= 0 ~methAndRunningLastTime~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 14:47:21,577 INFO L428 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 453 463) the Hoare annotation is: true [2018-11-18 14:47:21,577 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 453 463) no Hoare annotation was computed. [2018-11-18 14:47:21,577 INFO L428 ceAbstractionStarter]: At program point L458(line 458) the Hoare annotation is: true [2018-11-18 14:47:21,577 INFO L425 ceAbstractionStarter]: For program point L458-1(line 458) no Hoare annotation was computed. [2018-11-18 14:47:21,577 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 453 463) no Hoare annotation was computed. [2018-11-18 14:47:21,577 INFO L421 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 445 452) the Hoare annotation is: (let ((.cse1 (< ~waterLevel~0 1)) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse3 (not (= ~systemActive~0 1))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 (or .cse2 .cse3 (not (= ~methaneLevelCritical~0 0)))) (or .cse0 (or (< ~methaneLevelCritical~0 1) .cse1 .cse2 .cse3)) (or (not (= ~waterLevel~0 0)) .cse2 .cse3 .cse0))) [2018-11-18 14:47:21,577 INFO L425 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 445 452) no Hoare annotation was computed. [2018-11-18 14:47:21,577 INFO L425 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 445 452) no Hoare annotation was computed. [2018-11-18 14:47:21,577 INFO L421 ceAbstractionStarter]: At program point L413(line 413) the Hoare annotation is: (let ((.cse5 (< ~methaneLevelCritical~0 1)) (.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (< ~waterLevel~0 1)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 1))) (.cse6 (not (= ~methAndRunningLastTime~0 0))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 (or .cse1 .cse2 .cse3)) (or .cse4 .cse5 .cse0 .cse2 .cse6) (or .cse5 .cse0 .cse1 .cse2) (or .cse0 .cse4 .cse2 .cse6 .cse3))) [2018-11-18 14:47:21,578 INFO L425 ceAbstractionStarter]: For program point L413-1(lines 394 418) no Hoare annotation was computed. [2018-11-18 14:47:21,578 INFO L421 ceAbstractionStarter]: At program point L408(line 408) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse4 (< ~methaneLevelCritical~0 1)) (.cse0 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse5 (not (= ~methAndRunningLastTime~0 0))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 (or .cse1 .cse2 .cse3)) (or .cse4 (< ~waterLevel~0 2) .cse2 .cse5) (or .cse4 .cse0 .cse1 .cse2) (or .cse4 .cse2 (not (= ~waterLevel~0 1)) .cse5) (or .cse0 .cse2 .cse5 .cse3))) [2018-11-18 14:47:21,578 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 394 418) no Hoare annotation was computed. [2018-11-18 14:47:21,578 INFO L421 ceAbstractionStarter]: At program point L404(line 404) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0)) (.cse1 (and (<= 1 processEnvironment_~tmp~3) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse5 (< ~methaneLevelCritical~0 1)) (.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (< ~waterLevel~0 1)) (.cse3 (not (= ~systemActive~0 1))) (.cse7 (not (= ~methAndRunningLastTime~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (or .cse2 .cse3 .cse4)) (or (or .cse5 .cse0 .cse2 .cse3) .cse1) (or .cse5 .cse6 .cse3 (not (= ~waterLevel~0 1)) .cse7) (or .cse5 .cse6 (< ~waterLevel~0 2) .cse3 .cse7) (or .cse6 .cse0 .cse3 .cse7 .cse4))) [2018-11-18 14:47:21,578 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 394 418) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0)) (.cse5 (< ~methaneLevelCritical~0 1)) (.cse1 (< ~waterLevel~0 1)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (not (= ~systemActive~0 1))) (.cse6 (not (= ~methAndRunningLastTime~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (or .cse2 .cse3 .cse4)) (or .cse0 (or .cse5 .cse1 .cse2 .cse3)) (or .cse0 .cse5 .cse1 .cse3 .cse6) (or .cse1 .cse0 .cse3 .cse6 .cse4))) [2018-11-18 14:47:21,578 INFO L425 ceAbstractionStarter]: For program point L402(lines 402 410) no Hoare annotation was computed. [2018-11-18 14:47:21,578 INFO L421 ceAbstractionStarter]: At program point L400(line 400) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse5 (< ~methaneLevelCritical~0 1)) (.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse3 (not (= ~systemActive~0 1))) (.cse7 (not (= ~methAndRunningLastTime~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (or .cse2 .cse3 .cse4)) (or .cse0 (or .cse5 .cse1 .cse2 .cse3)) (or .cse5 .cse6 .cse3 (not (= ~waterLevel~0 1)) .cse7) (or .cse5 .cse6 (< ~waterLevel~0 2) .cse3 .cse7) (or .cse6 .cse1 .cse3 .cse7 .cse4))) [2018-11-18 14:47:21,578 INFO L425 ceAbstractionStarter]: For program point L400-1(line 400) no Hoare annotation was computed. [2018-11-18 14:47:21,579 INFO L425 ceAbstractionStarter]: For program point L398(lines 398 415) no Hoare annotation was computed. [2018-11-18 14:47:21,579 INFO L425 ceAbstractionStarter]: For program point L169(lines 169 175) no Hoare annotation was computed. [2018-11-18 14:47:21,579 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 165 178) no Hoare annotation was computed. [2018-11-18 14:47:21,579 INFO L428 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 165 178) the Hoare annotation is: true [2018-11-18 14:47:21,579 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 165 178) no Hoare annotation was computed. [2018-11-18 14:47:21,579 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 360 366) no Hoare annotation was computed. [2018-11-18 14:47:21,579 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 360 366) the Hoare annotation is: true [2018-11-18 14:47:21,579 INFO L425 ceAbstractionStarter]: For program point L578-1(lines 578 584) no Hoare annotation was computed. [2018-11-18 14:47:21,579 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 548 611) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= 1 ~waterLevel~0) (= 0 ~methAndRunningLastTime~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 14:47:21,579 INFO L421 ceAbstractionStarter]: At program point L570(line 570) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= 1 ~waterLevel~0)) (.cse4 (= 0 ~methaneLevelCritical~0)) (.cse2 (= test_~splverifierCounter~0 0)) (.cse3 (= 0 ~methAndRunningLastTime~0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 .cse2 .cse3) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse4 .cse0 .cse1 .cse2 .cse3) (and .cse4 (<= 2 ~waterLevel~0) .cse2 .cse3))) [2018-11-18 14:47:21,580 INFO L421 ceAbstractionStarter]: At program point L601(lines 558 603) the Hoare annotation is: (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse1 (= 0 ~pumpRunning~0)) (.cse2 (<= 1 ~waterLevel~0)) (.cse3 (= test_~splverifierCounter~0 0)) (.cse4 (= 0 ~methAndRunningLastTime~0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 (<= 2 ~waterLevel~0) .cse4 .cse3) (not (= ~systemActive~0 1)) (and .cse1 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3 .cse4) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 14:47:21,580 INFO L425 ceAbstractionStarter]: For program point L568(lines 568 574) no Hoare annotation was computed. [2018-11-18 14:47:21,580 INFO L425 ceAbstractionStarter]: For program point L568-1(lines 568 574) no Hoare annotation was computed. [2018-11-18 14:47:21,580 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 548 611) no Hoare annotation was computed. [2018-11-18 14:47:21,580 INFO L425 ceAbstractionStarter]: For program point L560(lines 560 564) no Hoare annotation was computed. [2018-11-18 14:47:21,580 INFO L425 ceAbstractionStarter]: For program point L558-1(lines 558 603) no Hoare annotation was computed. [2018-11-18 14:47:21,580 INFO L421 ceAbstractionStarter]: At program point L604(lines 557 605) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 14:47:21,580 INFO L425 ceAbstractionStarter]: For program point L594(lines 594 598) no Hoare annotation was computed. [2018-11-18 14:47:21,580 INFO L421 ceAbstractionStarter]: At program point L594-2(lines 588 599) the Hoare annotation is: (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse6 (<= 2 ~waterLevel~0)) (.cse1 (= 0 ~pumpRunning~0)) (.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse2 (<= 1 ~waterLevel~0)) (.cse3 (= test_~splverifierCounter~0 0)) (.cse4 (= 0 ~methAndRunningLastTime~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse5 (and .cse6 .cse4 .cse3)) (and .cse0 .cse6 .cse4 .cse3) (and .cse1 .cse5 .cse2 .cse3 .cse4) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 14:47:21,580 INFO L425 ceAbstractionStarter]: For program point L559(lines 558 603) no Hoare annotation was computed. [2018-11-18 14:47:21,581 INFO L425 ceAbstractionStarter]: For program point L588(lines 588 599) no Hoare annotation was computed. [2018-11-18 14:47:21,581 INFO L421 ceAbstractionStarter]: At program point L580(line 580) the Hoare annotation is: (let ((.cse1 (= 0 ~pumpRunning~0)) (.cse2 (<= 1 ~waterLevel~0)) (.cse0 (= 0 ~methaneLevelCritical~0)) (.cse4 (= 0 ~methAndRunningLastTime~0)) (.cse3 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3 .cse4) (and .cse0 (<= 2 ~waterLevel~0) .cse4 .cse3) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 14:47:21,581 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 548 611) no Hoare annotation was computed. [2018-11-18 14:47:21,581 INFO L425 ceAbstractionStarter]: For program point L578(lines 578 584) no Hoare annotation was computed. [2018-11-18 14:47:21,581 INFO L421 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 419 426) the Hoare annotation is: (or (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) (< ~waterLevel~0 2) (not (= ~methAndRunningLastTime~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 14:47:21,581 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 419 426) no Hoare annotation was computed. [2018-11-18 14:47:21,581 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 419 426) no Hoare annotation was computed. [2018-11-18 14:47:21,581 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 179 187) no Hoare annotation was computed. [2018-11-18 14:47:21,581 INFO L428 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 179 187) the Hoare annotation is: true [2018-11-18 14:47:21,581 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 179 187) no Hoare annotation was computed. [2018-11-18 14:47:21,581 INFO L421 ceAbstractionStarter]: At program point L316(line 316) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1)))) (let ((.cse3 (< ~waterLevel~0 1)) (.cse4 (not (= ~waterLevel~0 0))) (.cse6 (or .cse0 .cse1)) (.cse5 (or .cse1 .cse2))) (and (or (or .cse0 .cse1 .cse2) .cse3) (or .cse4 .cse5) (or (< ~methaneLevelCritical~0 1) .cse3 .cse6) (or .cse4 .cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (or .cse4 .cse6) (or (< ~waterLevel~0 2) .cse5)))) [2018-11-18 14:47:21,582 INFO L425 ceAbstractionStarter]: For program point L314(lines 314 320) no Hoare annotation was computed. [2018-11-18 14:47:21,582 INFO L425 ceAbstractionStarter]: For program point L313(lines 313 323) no Hoare annotation was computed. [2018-11-18 14:47:21,582 INFO L421 ceAbstractionStarter]: At program point L311(line 311) the Hoare annotation is: (let ((.cse2 (not (= ~systemActive~0 1))) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (let ((.cse6 (< ~waterLevel~0 1)) (.cse1 (not (= ~waterLevel~0 0))) (.cse7 (< ~methaneLevelCritical~0 1)) (.cse4 (not (= 0 ~pumpRunning~0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse9 (< ~waterLevel~0 2)) (.cse8 (or .cse2 .cse5))) (and (or .cse0 .cse1 (= ~pumpRunning~0 0) .cse2 .cse3) (or (or .cse4 .cse2 .cse5) .cse6) (or (<= ~methaneLevelCritical~0 __utac_acc__Specification2_spec__2_~tmp~1) .cse7 .cse6 (or .cse4 .cse2)) (or .cse1 .cse8) (or .cse7 .cse4 .cse2 .cse0 (not (= ~waterLevel~0 1)) .cse3) (or (not (= ~methaneLevelCritical~0 1)) .cse4 .cse9 .cse2 .cse3 .cse0) (or .cse9 .cse8)))) [2018-11-18 14:47:21,582 INFO L425 ceAbstractionStarter]: For program point L311-1(line 311) no Hoare annotation was computed. [2018-11-18 14:47:21,582 INFO L425 ceAbstractionStarter]: For program point L309(lines 309 326) no Hoare annotation was computed. [2018-11-18 14:47:21,582 INFO L425 ceAbstractionStarter]: For program point L309-1(lines 301 329) no Hoare annotation was computed. [2018-11-18 14:47:21,582 INFO L421 ceAbstractionStarter]: At program point L307(line 307) the Hoare annotation is: (let ((.cse7 (< ~waterLevel~0 2)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse6 (< ~methaneLevelCritical~0 1)) (.cse3 (not (= 0 ~pumpRunning~0))) (.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse1 (not (= ~systemActive~0 1))) (.cse4 (not (= ~waterLevel~0 1))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 (not (= ~waterLevel~0 0)) (= ~pumpRunning~0 0) .cse1 .cse2) (or .cse3 .cse0 .cse1 .cse4 .cse2 .cse5) (or .cse0 .cse6 .cse3 .cse7 .cse1 .cse2) (or .cse3 .cse7 .cse0 .cse1 .cse2 .cse5) (or .cse6 .cse3 .cse0 .cse1 .cse4 .cse2))) [2018-11-18 14:47:21,582 INFO L425 ceAbstractionStarter]: For program point L307-1(line 307) no Hoare annotation was computed. [2018-11-18 14:47:21,582 INFO L421 ceAbstractionStarter]: At program point __utac_acc__Specification2_spec__2ENTRY(lines 301 329) the Hoare annotation is: (let ((.cse7 (< ~waterLevel~0 2)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse6 (< ~methaneLevelCritical~0 1)) (.cse3 (not (= 0 ~pumpRunning~0))) (.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse1 (not (= ~systemActive~0 1))) (.cse4 (not (= ~waterLevel~0 1))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 (not (= ~waterLevel~0 0)) (= ~pumpRunning~0 0) .cse1 .cse2) (or .cse3 .cse0 .cse1 .cse4 .cse2 .cse5) (or .cse0 .cse6 .cse3 .cse7 .cse1 .cse2) (or .cse3 .cse7 .cse0 .cse1 .cse2 .cse5) (or .cse6 .cse3 .cse0 .cse1 .cse4 .cse2))) [2018-11-18 14:47:21,583 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__2EXIT(lines 301 329) no Hoare annotation was computed. [2018-11-18 14:47:21,583 INFO L421 ceAbstractionStarter]: At program point __utac_acc__Specification2_spec__1ENTRY(lines 293 300) the Hoare annotation is: (or (not (= 0 ~pumpRunning~0)) (= 0 ~methAndRunningLastTime~0) (not (= ~systemActive~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= ~waterLevel~0 1)) (not (= ~methaneLevelCritical~0 0))) [2018-11-18 14:47:21,583 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__1FINAL(lines 293 300) no Hoare annotation was computed. [2018-11-18 14:47:21,583 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__1EXIT(lines 293 300) no Hoare annotation was computed. [2018-11-18 14:47:21,583 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:47:21,583 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 14:47:21,583 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:47:21,583 INFO L421 ceAbstractionStarter]: At program point L433(line 433) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 2)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (not (= ~systemActive~0 1))) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (< ~methaneLevelCritical~0 1) .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse2 .cse0 .cse3 .cse4 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 14:47:21,583 INFO L425 ceAbstractionStarter]: For program point L433-1(line 433) no Hoare annotation was computed. [2018-11-18 14:47:21,583 INFO L425 ceAbstractionStarter]: For program point activatePumpEXIT(lines 428 444) no Hoare annotation was computed. [2018-11-18 14:47:21,583 INFO L421 ceAbstractionStarter]: At program point activatePumpENTRY(lines 428 444) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 2)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (not (= ~systemActive~0 1))) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (< ~methaneLevelCritical~0 1) .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse2 .cse0 .cse3 .cse4 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 14:47:21,584 INFO L421 ceAbstractionStarter]: At program point L439(line 439) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse3 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 14:47:21,584 INFO L425 ceAbstractionStarter]: For program point L439-1(lines 428 444) no Hoare annotation was computed. [2018-11-18 14:47:21,584 INFO L425 ceAbstractionStarter]: For program point L435(lines 435 441) no Hoare annotation was computed. [2018-11-18 14:47:21,584 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 509 527) no Hoare annotation was computed. [2018-11-18 14:47:21,584 INFO L425 ceAbstractionStarter]: For program point L518(lines 518 522) no Hoare annotation was computed. [2018-11-18 14:47:21,584 INFO L428 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 509 527) the Hoare annotation is: true [2018-11-18 14:47:21,584 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 509 527) no Hoare annotation was computed. [2018-11-18 14:47:21,584 INFO L428 ceAbstractionStarter]: At program point L516(line 516) the Hoare annotation is: true [2018-11-18 14:47:21,584 INFO L425 ceAbstractionStarter]: For program point L518-2(lines 518 522) no Hoare annotation was computed. [2018-11-18 14:47:21,584 INFO L425 ceAbstractionStarter]: For program point L516-1(line 516) no Hoare annotation was computed. [2018-11-18 14:47:21,584 INFO L421 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 112 123) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (= 0 ~methaneLevelCritical~0)) (.cse2 (not (= ~methAndRunningLastTime~0 0))) (.cse4 (not (= |old(~methaneLevelCritical~0)| 0)))) (and (or (or (< |old(~methaneLevelCritical~0)| 1) .cse0 .cse1 .cse2) (<= 1 ~methaneLevelCritical~0) (< ~waterLevel~0 1)) (or (not (= |old(~methaneLevelCritical~0)| 1)) .cse0 (= ~methaneLevelCritical~0 1) .cse1 .cse2 (not (= ~waterLevel~0 2))) (or .cse0 .cse3 .cse1 (not (= ~waterLevel~0 1)) .cse2 .cse4) (or (< ~waterLevel~0 2) .cse1 .cse3 .cse2 .cse4))) [2018-11-18 14:47:21,584 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 112 123) no Hoare annotation was computed. [2018-11-18 14:47:21,585 INFO L425 ceAbstractionStarter]: For program point L116-1(lines 112 123) no Hoare annotation was computed. [2018-11-18 14:47:21,585 INFO L421 ceAbstractionStarter]: At program point L349(line 349) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse3 (< ~methaneLevelCritical~0 1)) (.cse8 (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse2)) (.cse9 (< |old(~waterLevel~0)| 2)) (.cse5 (< |old(~waterLevel~0)| 1)) (.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (= 0 ~methAndRunningLastTime~0)) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (not (= ~systemActive~0 1))) (.cse7 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse10 (not (= ~methaneLevelCritical~0 0)))) (and (or (and .cse0 .cse1 .cse2) .cse3 .cse4 .cse5 .cse6 .cse7) (or .cse8 .cse9 .cse6 .cse7 .cse10) (or .cse3 .cse8 .cse9 .cse6 .cse7) (or .cse4 .cse5 (and .cse0 .cse1) .cse6 .cse7 .cse10) (or .cse4 .cse2 .cse6 (not (= |old(~waterLevel~0)| 1)) .cse7 .cse10)))) [2018-11-18 14:47:21,585 INFO L421 ceAbstractionStarter]: At program point L347(lines 347 353) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse3 (< ~methaneLevelCritical~0 1)) (.cse9 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse6 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse10 (and (<= 2 ~waterLevel~0) .cse1)) (.cse4 (< |old(~waterLevel~0)| 2)) (.cse8 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~methAndRunningLastTime~0)) (.cse5 (not (= ~systemActive~0 1))) (.cse12 (not (= |old(~waterLevel~0)| 1))) (.cse7 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse11 (not (= ~methaneLevelCritical~0 0)))) (and (or (and .cse0 .cse1 .cse2) .cse3 .cse4 .cse5 (and (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse6) .cse7) (or .cse8 (and .cse1 .cse9) .cse10 (< |old(~waterLevel~0)| 1) .cse5 .cse7 .cse11) (or .cse3 .cse8 (and .cse1 .cse2 .cse9) .cse5 .cse12 .cse7) (or (and .cse0 .cse6) .cse10 .cse4 .cse5 .cse7 .cse11) (or .cse8 .cse2 .cse5 .cse12 .cse7 .cse11)))) [2018-11-18 14:47:21,585 INFO L421 ceAbstractionStarter]: At program point L342(line 342) the Hoare annotation is: (let ((.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse5 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (< |old(~waterLevel~0)| 2)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 .cse2 (not (= |old(~waterLevel~0)| 1)) .cse3) (or .cse4 .cse5 .cse2 .cse3 .cse6) (or .cse1 (< |old(~waterLevel~0)| 1) .cse2 .cse3 .cse6) (or .cse0 .cse5 .cse4 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse2 .cse3))) [2018-11-18 14:47:21,585 INFO L425 ceAbstractionStarter]: For program point L340(lines 339 358) no Hoare annotation was computed. [2018-11-18 14:47:21,585 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 336 359) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~methaneLevelCritical~0 1)) (.cse6 (< |old(~waterLevel~0)| 2)) (.cse3 (not (= ~systemActive~0 1))) (.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~methAndRunningLastTime~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 (< |old(~waterLevel~0)| 1) .cse3 .cse4) (or .cse2 .cse0 .cse3 (not (= |old(~waterLevel~0)| 1)) .cse4 .cse5) (or .cse1 .cse6 .cse3 .cse0 .cse4) (or .cse6 .cse3 .cse0 .cse4 .cse5))) [2018-11-18 14:47:21,585 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 336 359) no Hoare annotation was computed. [2018-11-18 14:47:21,586 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 336 359) no Hoare annotation was computed. [2018-11-18 14:47:21,586 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 191 220) no Hoare annotation was computed. [2018-11-18 14:47:21,586 INFO L425 ceAbstractionStarter]: For program point L205(lines 205 209) no Hoare annotation was computed. [2018-11-18 14:47:21,586 INFO L428 ceAbstractionStarter]: At program point L205-1(lines 205 209) the Hoare annotation is: true [2018-11-18 14:47:21,586 INFO L425 ceAbstractionStarter]: For program point L201-1(lines 201 215) no Hoare annotation was computed. [2018-11-18 14:47:21,586 INFO L428 ceAbstractionStarter]: At program point L201-3(lines 201 215) the Hoare annotation is: true [2018-11-18 14:47:21,586 INFO L428 ceAbstractionStarter]: At program point L197(line 197) the Hoare annotation is: true [2018-11-18 14:47:21,586 INFO L425 ceAbstractionStarter]: For program point L197-1(line 197) no Hoare annotation was computed. [2018-11-18 14:47:21,586 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 191 220) the Hoare annotation is: true [2018-11-18 14:47:21,586 INFO L428 ceAbstractionStarter]: At program point L216(lines 191 220) the Hoare annotation is: true [2018-11-18 14:47:21,586 INFO L425 ceAbstractionStarter]: For program point L212(line 212) no Hoare annotation was computed. [2018-11-18 14:47:21,586 INFO L425 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-18 14:47:21,586 INFO L428 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 124 132) the Hoare annotation is: true [2018-11-18 14:47:21,587 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 124 132) no Hoare annotation was computed. [2018-11-18 14:47:21,587 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 124 132) no Hoare annotation was computed. [2018-11-18 14:47:21,587 INFO L421 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 88 99) the Hoare annotation is: (let ((.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (or (= ~pumpRunning~0 0) (not (= ~systemActive~0 1)))) (.cse1 (< |old(~waterLevel~0)| 2))) (and (or (or .cse0 (not (= ~methaneLevelCritical~0 0))) .cse1 .cse2) (or .cse2 (or (< ~methaneLevelCritical~0 1) .cse0 .cse1)))) [2018-11-18 14:47:21,587 INFO L425 ceAbstractionStarter]: For program point L92-1(lines 88 99) no Hoare annotation was computed. [2018-11-18 14:47:21,587 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 88 99) no Hoare annotation was computed. [2018-11-18 14:47:21,587 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 246 252) no Hoare annotation was computed. [2018-11-18 14:47:21,587 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 246 252) the Hoare annotation is: true [2018-11-18 14:47:21,587 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:47:21,587 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1) (= 0 ~methAndRunningLastTime~0)) [2018-11-18 14:47:21,587 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 14:47:21,587 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:47:21,588 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 368 392) the Hoare annotation is: (let ((.cse6 (not (= ~waterLevel~0 0))) (.cse7 (= |old(~pumpRunning~0)| 0)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse3 (not (= ~systemActive~0 1))) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse2 .cse6 .cse7 .cse3 .cse4) (or .cse2 .cse6 (or .cse7 .cse3 .cse5)) (or .cse2 (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse3 .cse4))) [2018-11-18 14:47:21,588 INFO L421 ceAbstractionStarter]: At program point L382(line 382) the Hoare annotation is: (let ((.cse5 (not (= ~waterLevel~0 0))) (.cse6 (= |old(~pumpRunning~0)| 0)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~2) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse7 (not (= ~methaneLevelCritical~0 0)))) (and (or (or .cse0 .cse1 (< ~waterLevel~0 2) .cse2 .cse3) .cse4) (or .cse5 (or .cse6 .cse2 .cse7)) (or .cse5 .cse6 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse2 (not (= ~waterLevel~0 1)) .cse3) (or .cse1 .cse4 (< ~waterLevel~0 1) .cse2 .cse3 .cse7))) [2018-11-18 14:47:21,588 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 368 392) no Hoare annotation was computed. [2018-11-18 14:47:21,588 INFO L421 ceAbstractionStarter]: At program point L378(line 378) the Hoare annotation is: (let ((.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse3 (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse6 (not (= ~waterLevel~0 0))) (.cse7 (= |old(~pumpRunning~0)| 0)) (.cse2 (not (= ~systemActive~0 1))) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or (not (= ~methaneLevelCritical~0 1)) .cse0 (< ~waterLevel~0 2) .cse2 (= processEnvironment__wrappee__highWaterSensor_~tmp~2 1) .cse4) (or .cse6 (or .cse7 .cse2 .cse5)) (or .cse3 (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse4) (or .cse6 .cse7 .cse2 .cse4))) [2018-11-18 14:47:21,588 INFO L425 ceAbstractionStarter]: For program point L376(lines 376 384) no Hoare annotation was computed. [2018-11-18 14:47:21,588 INFO L421 ceAbstractionStarter]: At program point L374(line 374) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (= ~waterLevel~0 0))) (.cse7 (= |old(~pumpRunning~0)| 0)) (.cse3 (not (= ~systemActive~0 1))) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse2 (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse3 .cse4) (or .cse6 (or .cse7 .cse3 .cse5)) (or .cse6 .cse7 .cse3 .cse4))) [2018-11-18 14:47:21,588 INFO L425 ceAbstractionStarter]: For program point L374-1(line 374) no Hoare annotation was computed. [2018-11-18 14:47:21,588 INFO L425 ceAbstractionStarter]: For program point L372(lines 372 389) no Hoare annotation was computed. [2018-11-18 14:47:21,589 INFO L421 ceAbstractionStarter]: At program point L387(line 387) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (not (= ~waterLevel~0 0))) (.cse6 (= |old(~pumpRunning~0)| 0)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse7 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 (not (= ~waterLevel~0 1)) .cse3) (or .cse0 .cse1 (< ~waterLevel~0 2) .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse2 .cse3) (or .cse4 .cse5 (or .cse6 .cse2 .cse7)) (or .cse1 (< ~waterLevel~0 1) .cse2 .cse3 .cse7))) [2018-11-18 14:47:21,589 INFO L425 ceAbstractionStarter]: For program point L387-1(lines 368 392) no Hoare annotation was computed. [2018-11-18 14:47:21,589 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 100 111) no Hoare annotation was computed. [2018-11-18 14:47:21,589 INFO L425 ceAbstractionStarter]: For program point L104-1(lines 100 111) no Hoare annotation was computed. [2018-11-18 14:47:21,589 INFO L421 ceAbstractionStarter]: At program point waterRiseENTRY(lines 100 111) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (not (= 0 ~pumpRunning~0))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) .cse1 .cse2 .cse3) (or .cse4 .cse3 .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 .cse2) (or .cse3 (< ~methaneLevelCritical~0 1) (< |old(~waterLevel~0)| 1) (or .cse4 .cse0) .cse1))) [2018-11-18 14:47:21,589 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 983) no Hoare annotation was computed. [2018-11-18 14:47:21,589 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 979 986) no Hoare annotation was computed. [2018-11-18 14:47:21,589 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 979 986) the Hoare annotation is: true [2018-11-18 14:47:21,589 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 979 986) no Hoare annotation was computed. [2018-11-18 14:47:21,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:47:21 BoogieIcfgContainer [2018-11-18 14:47:21,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:47:21,601 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:47:21,601 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:47:21,601 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:47:21,602 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:46:50" (3/4) ... [2018-11-18 14:47:21,604 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 14:47:21,608 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-18 14:47:21,608 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-18 14:47:21,608 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 14:47:21,608 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-18 14:47:21,608 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-18 14:47:21,608 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-18 14:47:21,608 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-18 14:47:21,608 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-18 14:47:21,608 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-18 14:47:21,608 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-18 14:47:21,608 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-18 14:47:21,608 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 14:47:21,608 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-18 14:47:21,608 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-11-18 14:47:21,608 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-18 14:47:21,608 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification2_spec__2 [2018-11-18 14:47:21,608 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification2_spec__1 [2018-11-18 14:47:21,609 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 14:47:21,609 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-18 14:47:21,609 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-18 14:47:21,609 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 14:47:21,609 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 14:47:21,609 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 14:47:21,609 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-18 14:47:21,609 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-18 14:47:21,609 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-18 14:47:21,609 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 14:47:21,609 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 14:47:21,609 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-18 14:47:21,615 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2018-11-18 14:47:21,615 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 14:47:21,616 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 14:47:21,634 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(0 == \old(pumpRunning)) || ((((0 == methaneLevelCritical && 0 == pumpRunning) && 1 <= waterLevel) && splverifierCounter == 0) && 0 == methAndRunningLastTime)) || (((0 == methaneLevelCritical && 2 <= waterLevel) && 0 == methAndRunningLastTime) && splverifierCounter == 0)) || !(systemActive == 1)) || ((((0 == pumpRunning && 1 <= methaneLevelCritical) && 1 <= waterLevel) && splverifierCounter == 0) && 0 == methAndRunningLastTime)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 14:47:21,634 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 14:47:21,671 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_182cce51-e679-446e-a8bc-cd8fdbf6a2a7/bin-2019/utaipan/witness.graphml [2018-11-18 14:47:21,671 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:47:21,672 INFO L168 Benchmark]: Toolchain (without parser) took 32580.06 ms. Allocated memory was 1.0 GB in the beginning and 3.1 GB in the end (delta: 2.1 GB). Free memory was 955.5 MB in the beginning and 1.6 GB in the end (delta: -665.2 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. [2018-11-18 14:47:21,672 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:47:21,672 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -171.1 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:47:21,673 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:47:21,673 INFO L168 Benchmark]: Boogie Preprocessor took 31.73 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:47:21,673 INFO L168 Benchmark]: RCFGBuilder took 501.02 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: 61.0 MB). Peak memory consumption was 61.0 MB. Max. memory is 11.5 GB. [2018-11-18 14:47:21,673 INFO L168 Benchmark]: TraceAbstraction took 31563.13 ms. Allocated memory was 1.2 GB in the beginning and 3.1 GB in the end (delta: 1.9 GB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -560.5 MB). Peak memory consumption was 2.0 GB. Max. memory is 11.5 GB. [2018-11-18 14:47:21,673 INFO L168 Benchmark]: Witness Printer took 70.27 ms. Allocated memory is still 3.1 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 33.7 kB). Peak memory consumption was 33.7 kB. Max. memory is 11.5 GB. [2018-11-18 14:47:21,676 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 383.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -171.1 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.73 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 501.02 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: 61.0 MB). Peak memory consumption was 61.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 31563.13 ms. Allocated memory was 1.2 GB in the beginning and 3.1 GB in the end (delta: 1.9 GB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -560.5 MB). Peak memory consumption was 2.0 GB. Max. memory is 11.5 GB. * Witness Printer took 70.27 ms. Allocated memory is still 3.1 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 33.7 kB). Peak memory consumption was 33.7 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 983]: 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: 558]: Loop Invariant Derived loop invariant: ((((((!(0 == \old(pumpRunning)) || ((((0 == methaneLevelCritical && 0 == pumpRunning) && 1 <= waterLevel) && splverifierCounter == 0) && 0 == methAndRunningLastTime)) || (((0 == methaneLevelCritical && 2 <= waterLevel) && 0 == methAndRunningLastTime) && splverifierCounter == 0)) || !(systemActive == 1)) || ((((0 == pumpRunning && 1 <= methaneLevelCritical) && 1 <= waterLevel) && splverifierCounter == 0) && 0 == methAndRunningLastTime)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 557]: Loop Invariant Derived loop invariant: (((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 30 procedures, 160 locations, 1 error locations. SAFE Result, 31.5s OverallTime, 16 OverallIterations, 6 TraceHistogramMax, 9.9s AutomataDifference, 0.0s DeadEndRemovalTime, 3.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 3220 SDtfs, 2553 SDslu, 9489 SDs, 0 SdLazy, 5695 SolverSat, 1026 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 2816 GetRequests, 2611 SyntacticMatches, 22 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2572occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 11.9s AbstIntTime, 5 AbstIntIterations, 1 AbstIntStrong, 0.9969779179720561 AbsIntWeakeningRatio, 1.02803738317757 AbsIntAvgWeakeningVarsNumRemoved, 84.5607476635514 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 16 MinimizatonAttempts, 1293 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 65 LocationsWithAnnotation, 4612 PreInvPairs, 4766 NumberOfFragments, 3062 HoareAnnotationTreeSize, 4612 FomulaSimplifications, 21191 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 65 FomulaSimplificationsInter, 19896 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 3491 NumberOfCodeBlocks, 3399 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 4728 ConstructedInterpolants, 0 QuantifiedInterpolants, 1421594 SizeOfPredicates, 23 NumberOfNonLiveVariables, 4982 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 26 InterpolantComputations, 14 PerfectInterpolantSequences, 2951/3140 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...