./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product51_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_c3f41f48-dabd-4b73-b0a8-52ae206aa498/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c3f41f48-dabd-4b73-b0a8-52ae206aa498/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c3f41f48-dabd-4b73-b0a8-52ae206aa498/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c3f41f48-dabd-4b73-b0a8-52ae206aa498/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product51_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c3f41f48-dabd-4b73-b0a8-52ae206aa498/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c3f41f48-dabd-4b73-b0a8-52ae206aa498/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 38d3472c1eb8f4a8d30b3059a3484ecd66f7fba4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:17:15,393 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:17:15,394 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:17:15,402 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:17:15,402 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:17:15,403 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:17:15,403 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:17:15,405 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:17:15,406 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:17:15,406 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:17:15,407 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:17:15,407 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:17:15,408 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:17:15,408 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:17:15,409 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:17:15,410 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:17:15,411 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:17:15,412 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:17:15,413 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:17:15,414 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:17:15,415 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:17:15,416 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:17:15,417 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:17:15,418 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:17:15,418 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:17:15,418 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:17:15,420 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:17:15,420 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:17:15,421 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:17:15,421 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:17:15,421 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:17:15,422 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:17:15,422 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:17:15,422 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:17:15,423 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:17:15,423 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:17:15,423 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c3f41f48-dabd-4b73-b0a8-52ae206aa498/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 15:17:15,431 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:17:15,431 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:17:15,431 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:17:15,432 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:17:15,432 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:17:15,432 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:17:15,432 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:17:15,432 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 15:17:15,432 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:17:15,433 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:17:15,433 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 15:17:15,433 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 15:17:15,433 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:17:15,435 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:17:15,435 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:17:15,435 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:17:15,435 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:17:15,435 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:17:15,435 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:17:15,436 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:17:15,436 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:17:15,436 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:17:15,436 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:17:15,436 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:17:15,436 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:17:15,437 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:17:15,437 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:17:15,437 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:17:15,437 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:17:15,437 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:17:15,437 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:17:15,437 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:17:15,438 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:17:15,438 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 15:17:15,438 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:17:15,438 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:17:15,438 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 15:17:15,438 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_c3f41f48-dabd-4b73-b0a8-52ae206aa498/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 -> 38d3472c1eb8f4a8d30b3059a3484ecd66f7fba4 [2018-11-18 15:17:15,462 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:17:15,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:17:15,473 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:17:15,474 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:17:15,474 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:17:15,474 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c3f41f48-dabd-4b73-b0a8-52ae206aa498/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product51_true-unreach-call_false-termination.cil.c [2018-11-18 15:17:15,508 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c3f41f48-dabd-4b73-b0a8-52ae206aa498/bin-2019/utaipan/data/1c13ee597/c4ce2b52149c4075b4efb9f144d65b6e/FLAG948fc1ce8 [2018-11-18 15:17:15,941 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:17:15,941 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c3f41f48-dabd-4b73-b0a8-52ae206aa498/sv-benchmarks/c/product-lines/minepump_spec2_product51_true-unreach-call_false-termination.cil.c [2018-11-18 15:17:15,952 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c3f41f48-dabd-4b73-b0a8-52ae206aa498/bin-2019/utaipan/data/1c13ee597/c4ce2b52149c4075b4efb9f144d65b6e/FLAG948fc1ce8 [2018-11-18 15:17:15,964 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c3f41f48-dabd-4b73-b0a8-52ae206aa498/bin-2019/utaipan/data/1c13ee597/c4ce2b52149c4075b4efb9f144d65b6e [2018-11-18 15:17:15,966 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:17:15,966 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:17:15,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:17:15,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:17:15,969 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:17:15,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:17:15" (1/1) ... [2018-11-18 15:17:15,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c3b532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:15, skipping insertion in model container [2018-11-18 15:17:15,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:17:15" (1/1) ... [2018-11-18 15:17:15,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:17:16,008 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:17:16,204 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:17:16,210 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:17:16,312 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:17:16,328 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:17:16,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:16 WrapperNode [2018-11-18 15:17:16,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:17:16,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:17:16,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:17:16,329 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:17:16,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:16" (1/1) ... [2018-11-18 15:17:16,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:16" (1/1) ... [2018-11-18 15:17:16,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:17:16,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:17:16,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:17:16,348 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:17:16,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:16" (1/1) ... [2018-11-18 15:17:16,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:16" (1/1) ... [2018-11-18 15:17:16,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:16" (1/1) ... [2018-11-18 15:17:16,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:16" (1/1) ... [2018-11-18 15:17:16,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:16" (1/1) ... [2018-11-18 15:17:16,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:16" (1/1) ... [2018-11-18 15:17:16,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:16" (1/1) ... [2018-11-18 15:17:16,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:17:16,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:17:16,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:17:16,372 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:17:16,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3f41f48-dabd-4b73-b0a8-52ae206aa498/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 15:17:16,410 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-18 15:17:16,410 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-18 15:17:16,410 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:17:16,410 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:17:16,410 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-11-18 15:17:16,410 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-11-18 15:17:16,410 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-18 15:17:16,410 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-18 15:17:16,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:17:16,411 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-18 15:17:16,411 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-18 15:17:16,411 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-18 15:17:16,411 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-18 15:17:16,411 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-18 15:17:16,411 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-18 15:17:16,411 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 15:17:16,412 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 15:17:16,412 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-18 15:17:16,412 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-18 15:17:16,412 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-18 15:17:16,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-18 15:17:16,412 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2018-11-18 15:17:16,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2018-11-18 15:17:16,412 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2018-11-18 15:17:16,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2018-11-18 15:17:16,413 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-18 15:17:16,413 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-18 15:17:16,413 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-18 15:17:16,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-18 15:17:16,413 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-18 15:17:16,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-18 15:17:16,413 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 15:17:16,413 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 15:17:16,413 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 15:17:16,414 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 15:17:16,414 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-18 15:17:16,414 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-18 15:17:16,414 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 15:17:16,414 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 15:17:16,414 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 15:17:16,414 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 15:17:16,414 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-18 15:17:16,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-18 15:17:16,415 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-18 15:17:16,415 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-18 15:17:16,415 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-18 15:17:16,415 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-18 15:17:16,415 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-18 15:17:16,415 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-18 15:17:16,415 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-18 15:17:16,415 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-18 15:17:16,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:17:16,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:17:16,416 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 15:17:16,416 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 15:17:16,416 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-18 15:17:16,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-18 15:17:16,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:17:16,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:17:16,816 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:17:16,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:17:16 BoogieIcfgContainer [2018-11-18 15:17:16,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:17:16,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:17:16,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:17:16,819 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:17:16,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:17:15" (1/3) ... [2018-11-18 15:17:16,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e5c1b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:17:16, skipping insertion in model container [2018-11-18 15:17:16,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:17:16" (2/3) ... [2018-11-18 15:17:16,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e5c1b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:17:16, skipping insertion in model container [2018-11-18 15:17:16,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:17:16" (3/3) ... [2018-11-18 15:17:16,821 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product51_true-unreach-call_false-termination.cil.c [2018-11-18 15:17:16,827 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:17:16,831 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:17:16,840 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:17:16,861 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:17:16,862 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:17:16,862 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:17:16,862 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:17:16,862 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:17:16,862 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:17:16,862 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:17:16,862 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:17:16,876 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2018-11-18 15:17:16,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-18 15:17:16,882 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:16,883 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 15:17:16,884 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:16,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:16,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1309272750, now seen corresponding path program 1 times [2018-11-18 15:17:16,889 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:16,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:16,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:16,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:16,917 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:17,075 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 15:17:17,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:17:17,077 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:17:17,077 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:17,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 15:17:17,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 15:17:17,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:17:17,092 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 2 states. [2018-11-18 15:17:17,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:17,121 INFO L93 Difference]: Finished difference Result 278 states and 345 transitions. [2018-11-18 15:17:17,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 15:17:17,122 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2018-11-18 15:17:17,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:17,131 INFO L225 Difference]: With dead ends: 278 [2018-11-18 15:17:17,131 INFO L226 Difference]: Without dead ends: 141 [2018-11-18 15:17:17,134 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 15:17:17,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-11-18 15:17:17,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-11-18 15:17:17,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-11-18 15:17:17,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 166 transitions. [2018-11-18 15:17:17,172 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 166 transitions. Word has length 51 [2018-11-18 15:17:17,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:17,172 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 166 transitions. [2018-11-18 15:17:17,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 15:17:17,173 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 166 transitions. [2018-11-18 15:17:17,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 15:17:17,175 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:17,175 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 15:17:17,175 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:17,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:17,176 INFO L82 PathProgramCache]: Analyzing trace with hash -681233977, now seen corresponding path program 1 times [2018-11-18 15:17:17,176 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:17,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:17,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:17,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:17,177 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:17,250 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 15:17:17,250 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:17:17,250 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:17:17,250 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:17,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:17:17,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:17:17,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:17:17,252 INFO L87 Difference]: Start difference. First operand 141 states and 166 transitions. Second operand 3 states. [2018-11-18 15:17:17,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:17,271 INFO L93 Difference]: Finished difference Result 219 states and 257 transitions. [2018-11-18 15:17:17,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:17:17,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2018-11-18 15:17:17,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:17,273 INFO L225 Difference]: With dead ends: 219 [2018-11-18 15:17:17,273 INFO L226 Difference]: Without dead ends: 131 [2018-11-18 15:17:17,274 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 15:17:17,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-11-18 15:17:17,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2018-11-18 15:17:17,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-11-18 15:17:17,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 153 transitions. [2018-11-18 15:17:17,285 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 153 transitions. Word has length 53 [2018-11-18 15:17:17,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:17,285 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 153 transitions. [2018-11-18 15:17:17,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:17:17,285 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 153 transitions. [2018-11-18 15:17:17,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-18 15:17:17,287 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:17,287 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 15:17:17,287 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:17,287 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:17,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1545927115, now seen corresponding path program 1 times [2018-11-18 15:17:17,287 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:17,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:17,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:17,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:17,288 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:17,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:17,409 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 15:17:17,410 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:17:17,410 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:17:17,410 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:17,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:17:17,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:17:17,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:17:17,411 INFO L87 Difference]: Start difference. First operand 131 states and 153 transitions. Second operand 7 states. [2018-11-18 15:17:17,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:17,829 INFO L93 Difference]: Finished difference Result 389 states and 472 transitions. [2018-11-18 15:17:17,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:17:17,830 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2018-11-18 15:17:17,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:17,833 INFO L225 Difference]: With dead ends: 389 [2018-11-18 15:17:17,833 INFO L226 Difference]: Without dead ends: 286 [2018-11-18 15:17:17,834 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 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 15:17:17,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2018-11-18 15:17:17,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 278. [2018-11-18 15:17:17,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2018-11-18 15:17:17,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 337 transitions. [2018-11-18 15:17:17,859 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 337 transitions. Word has length 57 [2018-11-18 15:17:17,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:17,859 INFO L480 AbstractCegarLoop]: Abstraction has 278 states and 337 transitions. [2018-11-18 15:17:17,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:17:17,859 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 337 transitions. [2018-11-18 15:17:17,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-18 15:17:17,861 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:17,862 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] [2018-11-18 15:17:17,862 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:17,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:17,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1535904940, now seen corresponding path program 1 times [2018-11-18 15:17:17,862 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:17,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:17,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:17,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:17,863 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:17,949 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 15:17:17,949 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:17:17,949 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 15:17:17,949 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:17,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:17:17,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:17:17,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:17:17,950 INFO L87 Difference]: Start difference. First operand 278 states and 337 transitions. Second operand 6 states. [2018-11-18 15:17:18,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:18,105 INFO L93 Difference]: Finished difference Result 760 states and 945 transitions. [2018-11-18 15:17:18,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 15:17:18,106 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2018-11-18 15:17:18,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:18,110 INFO L225 Difference]: With dead ends: 760 [2018-11-18 15:17:18,110 INFO L226 Difference]: Without dead ends: 510 [2018-11-18 15:17:18,112 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 15:17:18,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2018-11-18 15:17:18,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 504. [2018-11-18 15:17:18,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2018-11-18 15:17:18,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 614 transitions. [2018-11-18 15:17:18,150 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 614 transitions. Word has length 63 [2018-11-18 15:17:18,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:18,150 INFO L480 AbstractCegarLoop]: Abstraction has 504 states and 614 transitions. [2018-11-18 15:17:18,150 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:17:18,150 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 614 transitions. [2018-11-18 15:17:18,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-18 15:17:18,152 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:18,153 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] [2018-11-18 15:17:18,153 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:18,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:18,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1726706352, now seen corresponding path program 1 times [2018-11-18 15:17:18,153 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:18,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:18,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:18,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:18,154 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:18,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:17:18,273 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:17:18,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 15:17:18,274 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:18,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:17:18,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:17:18,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:17:18,275 INFO L87 Difference]: Start difference. First operand 504 states and 614 transitions. Second operand 6 states. [2018-11-18 15:17:18,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:18,512 INFO L93 Difference]: Finished difference Result 1169 states and 1485 transitions. [2018-11-18 15:17:18,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 15:17:18,513 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2018-11-18 15:17:18,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:18,518 INFO L225 Difference]: With dead ends: 1169 [2018-11-18 15:17:18,518 INFO L226 Difference]: Without dead ends: 693 [2018-11-18 15:17:18,520 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 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 15:17:18,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2018-11-18 15:17:18,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 675. [2018-11-18 15:17:18,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 675 states. [2018-11-18 15:17:18,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 821 transitions. [2018-11-18 15:17:18,560 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 821 transitions. Word has length 67 [2018-11-18 15:17:18,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:18,560 INFO L480 AbstractCegarLoop]: Abstraction has 675 states and 821 transitions. [2018-11-18 15:17:18,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:17:18,560 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 821 transitions. [2018-11-18 15:17:18,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-11-18 15:17:18,562 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:18,562 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, 1] [2018-11-18 15:17:18,562 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:18,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:18,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1238838901, now seen corresponding path program 1 times [2018-11-18 15:17:18,562 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:18,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:18,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:18,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:18,563 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:18,623 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 15:17:18,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:17:18,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 15:17:18,623 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:18,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:17:18,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:17:18,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:17:18,624 INFO L87 Difference]: Start difference. First operand 675 states and 821 transitions. Second operand 6 states. [2018-11-18 15:17:18,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:18,674 INFO L93 Difference]: Finished difference Result 1342 states and 1664 transitions. [2018-11-18 15:17:18,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:17:18,675 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2018-11-18 15:17:18,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:18,678 INFO L225 Difference]: With dead ends: 1342 [2018-11-18 15:17:18,678 INFO L226 Difference]: Without dead ends: 695 [2018-11-18 15:17:18,680 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 15:17:18,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2018-11-18 15:17:18,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 695. [2018-11-18 15:17:18,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2018-11-18 15:17:18,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 841 transitions. [2018-11-18 15:17:18,710 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 841 transitions. Word has length 89 [2018-11-18 15:17:18,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:18,711 INFO L480 AbstractCegarLoop]: Abstraction has 695 states and 841 transitions. [2018-11-18 15:17:18,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:17:18,711 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 841 transitions. [2018-11-18 15:17:18,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-11-18 15:17:18,712 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:18,712 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, 1] [2018-11-18 15:17:18,713 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:18,713 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:18,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1940438775, now seen corresponding path program 1 times [2018-11-18 15:17:18,713 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:18,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:18,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:18,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:18,714 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:18,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:18,802 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 15:17:18,802 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:17:18,802 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 15:17:18,802 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:18,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 15:17:18,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 15:17:18,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 15:17:18,803 INFO L87 Difference]: Start difference. First operand 695 states and 841 transitions. Second operand 8 states. [2018-11-18 15:17:18,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:18,882 INFO L93 Difference]: Finished difference Result 1390 states and 1742 transitions. [2018-11-18 15:17:18,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 15:17:18,883 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2018-11-18 15:17:18,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:18,886 INFO L225 Difference]: With dead ends: 1390 [2018-11-18 15:17:18,886 INFO L226 Difference]: Without dead ends: 723 [2018-11-18 15:17:18,887 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 15:17:18,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2018-11-18 15:17:18,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 711. [2018-11-18 15:17:18,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 711 states. [2018-11-18 15:17:18,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 857 transitions. [2018-11-18 15:17:18,920 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 857 transitions. Word has length 89 [2018-11-18 15:17:18,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:18,921 INFO L480 AbstractCegarLoop]: Abstraction has 711 states and 857 transitions. [2018-11-18 15:17:18,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 15:17:18,921 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 857 transitions. [2018-11-18 15:17:18,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-11-18 15:17:18,923 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:18,923 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, 1] [2018-11-18 15:17:18,923 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:18,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:18,923 INFO L82 PathProgramCache]: Analyzing trace with hash -629047624, now seen corresponding path program 1 times [2018-11-18 15:17:18,923 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:18,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:18,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:18,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:18,924 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:18,985 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 15:17:18,986 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:17:18,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 15:17:18,986 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:18,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 15:17:18,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 15:17:18,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 15:17:18,987 INFO L87 Difference]: Start difference. First operand 711 states and 857 transitions. Second operand 4 states. [2018-11-18 15:17:19,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:19,238 INFO L93 Difference]: Finished difference Result 2347 states and 2962 transitions. [2018-11-18 15:17:19,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 15:17:19,238 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2018-11-18 15:17:19,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:19,246 INFO L225 Difference]: With dead ends: 2347 [2018-11-18 15:17:19,246 INFO L226 Difference]: Without dead ends: 1664 [2018-11-18 15:17:19,249 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 15:17:19,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2018-11-18 15:17:19,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1633. [2018-11-18 15:17:19,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1633 states. [2018-11-18 15:17:19,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 2005 transitions. [2018-11-18 15:17:19,327 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 2005 transitions. Word has length 89 [2018-11-18 15:17:19,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:19,327 INFO L480 AbstractCegarLoop]: Abstraction has 1633 states and 2005 transitions. [2018-11-18 15:17:19,327 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 15:17:19,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 2005 transitions. [2018-11-18 15:17:19,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-11-18 15:17:19,330 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:19,330 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, 1, 1, 1, 1, 1] [2018-11-18 15:17:19,330 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:19,330 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:19,330 INFO L82 PathProgramCache]: Analyzing trace with hash 848262450, now seen corresponding path program 1 times [2018-11-18 15:17:19,330 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:19,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:19,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:19,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:19,331 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:19,406 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 15:17:19,406 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:17:19,406 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:17:19,406 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:19,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:17:19,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:17:19,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:17:19,407 INFO L87 Difference]: Start difference. First operand 1633 states and 2005 transitions. Second operand 3 states. [2018-11-18 15:17:19,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:19,508 INFO L93 Difference]: Finished difference Result 2576 states and 3237 transitions. [2018-11-18 15:17:19,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:17:19,509 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2018-11-18 15:17:19,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:19,519 INFO L225 Difference]: With dead ends: 2576 [2018-11-18 15:17:19,519 INFO L226 Difference]: Without dead ends: 2573 [2018-11-18 15:17:19,520 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:17:19,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2573 states. [2018-11-18 15:17:19,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2573 to 2409. [2018-11-18 15:17:19,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2409 states. [2018-11-18 15:17:19,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2409 states to 2409 states and 3045 transitions. [2018-11-18 15:17:19,649 INFO L78 Accepts]: Start accepts. Automaton has 2409 states and 3045 transitions. Word has length 93 [2018-11-18 15:17:19,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:19,650 INFO L480 AbstractCegarLoop]: Abstraction has 2409 states and 3045 transitions. [2018-11-18 15:17:19,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:17:19,650 INFO L276 IsEmpty]: Start isEmpty. Operand 2409 states and 3045 transitions. [2018-11-18 15:17:19,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-11-18 15:17:19,657 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:19,657 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-11-18 15:17:19,657 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:19,657 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:19,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1080725218, now seen corresponding path program 1 times [2018-11-18 15:17:19,658 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:19,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:19,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:19,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:19,658 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:19,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:19,730 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-18 15:17:19,731 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:17:19,731 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:17:19,732 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2018-11-18 15:17:19,733 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [27], [28], [40], [46], [50], [51], [52], [67], [70], [72], [76], [82], [86], [90], [93], [96], [98], [101], [104], [106], [109], [127], [129], [132], [134], [137], [140], [143], [151], [152], [153], [154], [155], [156], [157], [158], [160], [165], [167], [168], [173], [175], [176], [177], [210], [214], [220], [228], [232], [235], [237], [240], [250], [253], [257], [258], [261], [262], [263], [264], [265], [266], [267], [268], [269], [275], [276], [277], [285], [286], [287], [288], [289], [290], [293], [294], [297], [298], [299], [300], [301], [303], [304], [311], [312], [313], [314], [315], [316], [317], [319], [320], [321], [322] [2018-11-18 15:17:19,766 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:17:19,766 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:17:21,018 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 15:17:21,019 INFO L272 AbstractInterpreter]: Visited 100 different actions 422 times. Merged at 14 different actions 36 times. Never widened. Performed 17413 root evaluator evaluations with a maximum evaluation depth of 3. Performed 17413 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 1 different actions. Largest state had 134 variables. [2018-11-18 15:17:21,034 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:21,035 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 15:17:21,035 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:17:21,035 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3f41f48-dabd-4b73-b0a8-52ae206aa498/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 15:17:21,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:21,043 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 15:17:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:21,159 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:17:21,204 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:17:21,205 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:17:21,403 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-18 15:17:21,428 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 15:17:21,429 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 8 [2018-11-18 15:17:21,429 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:21,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:17:21,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:17:21,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-18 15:17:21,430 INFO L87 Difference]: Start difference. First operand 2409 states and 3045 transitions. Second operand 3 states. [2018-11-18 15:17:21,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:21,628 INFO L93 Difference]: Finished difference Result 4334 states and 5637 transitions. [2018-11-18 15:17:21,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:17:21,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2018-11-18 15:17:21,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:21,638 INFO L225 Difference]: With dead ends: 4334 [2018-11-18 15:17:21,638 INFO L226 Difference]: Without dead ends: 2275 [2018-11-18 15:17:21,643 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 304 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-18 15:17:21,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2018-11-18 15:17:21,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 2259. [2018-11-18 15:17:21,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2259 states. [2018-11-18 15:17:21,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2259 states to 2259 states and 2713 transitions. [2018-11-18 15:17:21,755 INFO L78 Accepts]: Start accepts. Automaton has 2259 states and 2713 transitions. Word has length 152 [2018-11-18 15:17:21,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:21,755 INFO L480 AbstractCegarLoop]: Abstraction has 2259 states and 2713 transitions. [2018-11-18 15:17:21,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:17:21,755 INFO L276 IsEmpty]: Start isEmpty. Operand 2259 states and 2713 transitions. [2018-11-18 15:17:21,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-11-18 15:17:21,761 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:21,762 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:17:21,762 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:21,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:21,762 INFO L82 PathProgramCache]: Analyzing trace with hash -2054185774, now seen corresponding path program 1 times [2018-11-18 15:17:21,762 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:21,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:21,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:21,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:21,763 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:21,874 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 15:17:21,874 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:17:21,874 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:17:21,875 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 155 with the following transitions: [2018-11-18 15:17:21,875 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [27], [28], [29], [31], [34], [38], [39], [40], [46], [50], [51], [52], [55], [57], [63], [67], [70], [71], [72], [76], [82], [86], [90], [93], [96], [98], [101], [104], [106], [109], [125], [126], [127], [129], [132], [134], [137], [140], [143], [151], [152], [153], [154], [155], [156], [157], [158], [160], [165], [167], [168], [173], [175], [176], [177], [207], [210], [214], [220], [225], [227], [228], [232], [235], [237], [240], [247], [250], [253], [257], [258], [261], [262], [263], [264], [265], [266], [267], [268], [269], [273], [274], [275], [276], [277], [279], [280], [283], [284], [285], [286], [287], [288], [289], [290], [293], [294], [297], [298], [299], [300], [301], [303], [304], [309], [310], [311], [312], [313], [314], [315], [316], [317], [319], [320], [321], [322], [325], [326] [2018-11-18 15:17:21,878 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:17:21,878 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:17:23,212 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 15:17:23,212 INFO L272 AbstractInterpreter]: Visited 125 different actions 806 times. Merged at 21 different actions 70 times. Never widened. Performed 26610 root evaluator evaluations with a maximum evaluation depth of 5. Performed 26610 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 15 fixpoints after 4 different actions. Largest state had 134 variables. [2018-11-18 15:17:23,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:23,213 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 15:17:23,213 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:17:23,214 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3f41f48-dabd-4b73-b0a8-52ae206aa498/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 15:17:23,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:23,221 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 15:17:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:23,300 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:17:23,355 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:17:23,355 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:17:23,510 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 15:17:23,526 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 15:17:23,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2018-11-18 15:17:23,526 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:23,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:17:23,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:17:23,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:17:23,527 INFO L87 Difference]: Start difference. First operand 2259 states and 2713 transitions. Second operand 5 states. [2018-11-18 15:17:24,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:24,084 INFO L93 Difference]: Finished difference Result 5283 states and 6703 transitions. [2018-11-18 15:17:24,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:17:24,085 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2018-11-18 15:17:24,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:24,095 INFO L225 Difference]: With dead ends: 5283 [2018-11-18 15:17:24,095 INFO L226 Difference]: Without dead ends: 3374 [2018-11-18 15:17:24,099 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-11-18 15:17:24,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3374 states. [2018-11-18 15:17:24,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3374 to 2924. [2018-11-18 15:17:24,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2924 states. [2018-11-18 15:17:24,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2924 states to 2924 states and 3520 transitions. [2018-11-18 15:17:24,201 INFO L78 Accepts]: Start accepts. Automaton has 2924 states and 3520 transitions. Word has length 154 [2018-11-18 15:17:24,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:24,202 INFO L480 AbstractCegarLoop]: Abstraction has 2924 states and 3520 transitions. [2018-11-18 15:17:24,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:17:24,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2924 states and 3520 transitions. [2018-11-18 15:17:24,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-11-18 15:17:24,206 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:24,206 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:17:24,207 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:24,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:24,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1701097392, now seen corresponding path program 1 times [2018-11-18 15:17:24,207 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:24,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:24,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:24,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:24,208 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:24,309 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 15:17:24,310 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:17:24,310 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:17:24,310 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 155 with the following transitions: [2018-11-18 15:17:24,310 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [27], [28], [29], [31], [34], [38], [39], [40], [46], [50], [51], [52], [55], [57], [63], [67], [70], [71], [72], [76], [82], [86], [90], [93], [96], [98], [101], [104], [106], [109], [125], [126], [127], [129], [132], [134], [137], [140], [143], [151], [152], [153], [154], [155], [156], [157], [158], [160], [165], [167], [168], [173], [175], [176], [177], [207], [210], [214], [220], [223], [227], [228], [232], [235], [237], [240], [247], [250], [253], [257], [258], [261], [262], [263], [264], [265], [266], [267], [268], [269], [273], [274], [275], [276], [277], [279], [280], [283], [284], [285], [286], [287], [288], [289], [290], [293], [294], [297], [298], [299], [300], [301], [303], [304], [309], [310], [311], [312], [313], [314], [315], [316], [317], [319], [320], [321], [322], [325], [326] [2018-11-18 15:17:24,313 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:17:24,313 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:17:25,510 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 15:17:25,510 INFO L272 AbstractInterpreter]: Visited 125 different actions 882 times. Merged at 21 different actions 80 times. Never widened. Performed 28984 root evaluator evaluations with a maximum evaluation depth of 5. Performed 28984 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 17 fixpoints after 4 different actions. Largest state had 134 variables. [2018-11-18 15:17:25,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:25,514 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 15:17:25,514 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:17:25,514 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3f41f48-dabd-4b73-b0a8-52ae206aa498/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 15:17:25,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:25,524 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 15:17:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:25,626 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:17:25,701 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:17:25,701 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:17:26,044 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 15:17:26,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 15:17:26,059 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 10] total 21 [2018-11-18 15:17:26,059 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:26,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 15:17:26,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 15:17:26,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2018-11-18 15:17:26,060 INFO L87 Difference]: Start difference. First operand 2924 states and 3520 transitions. Second operand 9 states. [2018-11-18 15:17:26,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:26,960 INFO L93 Difference]: Finished difference Result 7598 states and 10073 transitions. [2018-11-18 15:17:26,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 15:17:26,961 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 154 [2018-11-18 15:17:26,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:26,974 INFO L225 Difference]: With dead ends: 7598 [2018-11-18 15:17:26,974 INFO L226 Difference]: Without dead ends: 5036 [2018-11-18 15:17:26,979 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 301 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2018-11-18 15:17:26,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5036 states. [2018-11-18 15:17:27,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5036 to 3988. [2018-11-18 15:17:27,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3988 states. [2018-11-18 15:17:27,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3988 states to 3988 states and 4843 transitions. [2018-11-18 15:17:27,127 INFO L78 Accepts]: Start accepts. Automaton has 3988 states and 4843 transitions. Word has length 154 [2018-11-18 15:17:27,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:27,127 INFO L480 AbstractCegarLoop]: Abstraction has 3988 states and 4843 transitions. [2018-11-18 15:17:27,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 15:17:27,127 INFO L276 IsEmpty]: Start isEmpty. Operand 3988 states and 4843 transitions. [2018-11-18 15:17:27,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-11-18 15:17:27,130 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:27,130 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:17:27,130 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:27,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:27,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1773483950, now seen corresponding path program 1 times [2018-11-18 15:17:27,131 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:27,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:27,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:27,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:27,132 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:27,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:27,213 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-18 15:17:27,213 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:17:27,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 15:17:27,213 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:27,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 15:17:27,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 15:17:27,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 15:17:27,214 INFO L87 Difference]: Start difference. First operand 3988 states and 4843 transitions. Second operand 9 states. [2018-11-18 15:17:27,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:27,289 INFO L93 Difference]: Finished difference Result 5274 states and 6366 transitions. [2018-11-18 15:17:27,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 15:17:27,289 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 154 [2018-11-18 15:17:27,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:27,293 INFO L225 Difference]: With dead ends: 5274 [2018-11-18 15:17:27,294 INFO L226 Difference]: Without dead ends: 1758 [2018-11-18 15:17:27,298 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:17:27,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2018-11-18 15:17:27,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1642. [2018-11-18 15:17:27,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1642 states. [2018-11-18 15:17:27,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 1918 transitions. [2018-11-18 15:17:27,349 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 1918 transitions. Word has length 154 [2018-11-18 15:17:27,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:27,349 INFO L480 AbstractCegarLoop]: Abstraction has 1642 states and 1918 transitions. [2018-11-18 15:17:27,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 15:17:27,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 1918 transitions. [2018-11-18 15:17:27,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-11-18 15:17:27,352 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:17:27,353 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-11-18 15:17:27,353 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:17:27,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:17:27,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1463693532, now seen corresponding path program 1 times [2018-11-18 15:17:27,353 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:17:27,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:27,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:17:27,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:17:27,354 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:17:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:17:27,395 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-11-18 15:17:27,395 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:17:27,396 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:17:27,396 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:17:27,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:17:27,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:17:27,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:17:27,396 INFO L87 Difference]: Start difference. First operand 1642 states and 1918 transitions. Second operand 3 states. [2018-11-18 15:17:27,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:17:27,462 INFO L93 Difference]: Finished difference Result 2022 states and 2392 transitions. [2018-11-18 15:17:27,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:17:27,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2018-11-18 15:17:27,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:17:27,463 INFO L225 Difference]: With dead ends: 2022 [2018-11-18 15:17:27,463 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:17:27,465 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 15:17:27,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:17:27,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:17:27,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:17:27,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:17:27,466 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 162 [2018-11-18 15:17:27,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:17:27,466 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:17:27,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:17:27,466 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:17:27,466 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:17:27,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:17:27,664 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,666 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,667 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,670 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,670 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,672 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,672 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,676 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,681 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,684 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,688 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,689 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,699 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,700 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,701 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,702 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,703 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,703 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,705 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,707 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,709 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,710 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,712 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,713 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,716 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,717 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,719 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,721 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,759 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,824 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,877 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,945 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,952 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,955 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,960 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,963 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:27,989 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,016 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,034 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,035 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,036 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,039 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,056 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,059 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,065 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,067 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,069 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,071 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,074 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,075 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,078 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,085 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,106 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,111 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,114 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,118 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,134 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,139 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,145 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,149 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,154 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,155 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,159 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,160 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,161 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,162 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,163 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,164 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,165 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,168 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,172 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,177 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,179 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,182 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,184 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,184 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,186 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,186 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,187 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,222 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,223 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,224 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,225 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,227 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,227 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,229 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,233 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:17:28,452 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 31 [2018-11-18 15:17:28,935 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 38 [2018-11-18 15:17:29,062 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 44 [2018-11-18 15:17:29,465 WARN L180 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 48 [2018-11-18 15:17:30,407 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 46 [2018-11-18 15:17:30,730 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 395 401) the Hoare annotation is: true [2018-11-18 15:17:30,730 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 395 401) no Hoare annotation was computed. [2018-11-18 15:17:30,730 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 402 410) no Hoare annotation was computed. [2018-11-18 15:17:30,730 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 402 410) the Hoare annotation is: true [2018-11-18 15:17:30,731 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 402 410) no Hoare annotation was computed. [2018-11-18 15:17:30,731 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 589 611) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1) (= 0 ~methAndRunningLastTime~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:17:30,731 INFO L421 ceAbstractionStarter]: At program point L601(line 601) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1) (= main_~tmp~6 1) (= 0 ~methAndRunningLastTime~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:17:30,731 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 589 611) no Hoare annotation was computed. [2018-11-18 15:17:30,731 INFO L421 ceAbstractionStarter]: At program point L601-1(line 601) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1) (= main_~tmp~6 1) (= 0 ~methAndRunningLastTime~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:17:30,731 INFO L425 ceAbstractionStarter]: For program point L599(lines 599 606) no Hoare annotation was computed. [2018-11-18 15:17:30,731 INFO L425 ceAbstractionStarter]: For program point L599-1(lines 599 606) no Hoare annotation was computed. [2018-11-18 15:17:30,731 INFO L425 ceAbstractionStarter]: For program point L597(line 597) no Hoare annotation was computed. [2018-11-18 15:17:30,731 INFO L421 ceAbstractionStarter]: At program point L596(line 596) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1) (= 0 ~methAndRunningLastTime~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:17:30,731 INFO L421 ceAbstractionStarter]: At program point L595(line 595) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1) (= 0 ~methAndRunningLastTime~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:17:30,731 INFO L421 ceAbstractionStarter]: At program point L595-1(line 595) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1) (= 0 ~methAndRunningLastTime~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:17:30,732 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 589 611) no Hoare annotation was computed. [2018-11-18 15:17:30,732 INFO L425 ceAbstractionStarter]: For program point stopSystemEXIT(lines 318 332) no Hoare annotation was computed. [2018-11-18 15:17:30,732 INFO L421 ceAbstractionStarter]: At program point stopSystemENTRY(lines 318 332) the Hoare annotation is: (let ((.cse5 (= |old(~systemActive~0)| 0))) (let ((.cse2 (< ~waterLevel~0 2)) (.cse0 (not .cse5)) (.cse4 (= ~systemActive~0 0)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (or .cse1 .cse2 .cse3) .cse4) (or (or (< |old(~pumpRunning~0)| 1) .cse5 .cse2) (and (<= 1 ~pumpRunning~0) (not .cse4))) (or .cse1 (< ~waterLevel~0 1) (= 0 ~pumpRunning~0) .cse3) (or .cse0 .cse4 .cse1 (not (= ~waterLevel~0 1)) .cse3)))) [2018-11-18 15:17:30,732 INFO L425 ceAbstractionStarter]: For program point stopSystemFINAL(lines 318 332) no Hoare annotation was computed. [2018-11-18 15:17:30,732 INFO L421 ceAbstractionStarter]: At program point L324(line 324) the Hoare annotation is: (and (or (or (< |old(~pumpRunning~0)| 1) (= |old(~systemActive~0)| 0) (< ~waterLevel~0 2)) (and (<= 1 ~pumpRunning~0) (not (= ~systemActive~0 0)))) (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~methAndRunningLastTime~0 0)))) [2018-11-18 15:17:30,732 INFO L425 ceAbstractionStarter]: For program point L322(lines 322 328) no Hoare annotation was computed. [2018-11-18 15:17:30,732 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 235 243) no Hoare annotation was computed. [2018-11-18 15:17:30,732 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 235 243) the Hoare annotation is: true [2018-11-18 15:17:30,732 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 235 243) no Hoare annotation was computed. [2018-11-18 15:17:30,732 INFO L425 ceAbstractionStarter]: For program point L306-1(line 306) no Hoare annotation was computed. [2018-11-18 15:17:30,732 INFO L428 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 299 317) the Hoare annotation is: true [2018-11-18 15:17:30,732 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 299 317) no Hoare annotation was computed. [2018-11-18 15:17:30,732 INFO L425 ceAbstractionStarter]: For program point L308(lines 308 312) no Hoare annotation was computed. [2018-11-18 15:17:30,733 INFO L428 ceAbstractionStarter]: At program point L306(line 306) the Hoare annotation is: true [2018-11-18 15:17:30,733 INFO L425 ceAbstractionStarter]: For program point L308-2(lines 308 312) no Hoare annotation was computed. [2018-11-18 15:17:30,733 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 299 317) no Hoare annotation was computed. [2018-11-18 15:17:30,733 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 388 394) no Hoare annotation was computed. [2018-11-18 15:17:30,733 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 388 394) the Hoare annotation is: true [2018-11-18 15:17:30,733 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 578 588) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1) (= 0 ~methAndRunningLastTime~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:17:30,733 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 578 588) no Hoare annotation was computed. [2018-11-18 15:17:30,733 INFO L421 ceAbstractionStarter]: At program point L583(line 583) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1) (= 0 ~methAndRunningLastTime~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:17:30,733 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 578 588) no Hoare annotation was computed. [2018-11-18 15:17:30,733 INFO L421 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 216 223) the Hoare annotation is: (let ((.cse0 (< |old(~pumpRunning~0)| 1)) (.cse1 (<= 1 ~pumpRunning~0))) (and (or (or .cse0 (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) .cse1) (or (or .cse0 (= ~systemActive~0 0) (< ~waterLevel~0 2)) .cse1))) [2018-11-18 15:17:30,733 INFO L425 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 216 223) no Hoare annotation was computed. [2018-11-18 15:17:30,733 INFO L425 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 216 223) no Hoare annotation was computed. [2018-11-18 15:17:30,733 INFO L425 ceAbstractionStarter]: For program point L496(lines 496 502) no Hoare annotation was computed. [2018-11-18 15:17:30,733 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 492 505) no Hoare annotation was computed. [2018-11-18 15:17:30,734 INFO L428 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 492 505) the Hoare annotation is: true [2018-11-18 15:17:30,734 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 492 505) no Hoare annotation was computed. [2018-11-18 15:17:30,734 INFO L421 ceAbstractionStarter]: At program point L193(line 193) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or (or (< |old(~pumpRunning~0)| 1) (< ~waterLevel~0 1) .cse0) (and (<= 1 ~pumpRunning~0) (= processEnvironment_~tmp~2 1))) (or .cse1 .cse0 (not (= ~waterLevel~0 1)) .cse2) (or .cse1 (< ~waterLevel~0 2) .cse0 .cse2))) [2018-11-18 15:17:30,734 INFO L425 ceAbstractionStarter]: For program point L191(lines 191 199) no Hoare annotation was computed. [2018-11-18 15:17:30,734 INFO L421 ceAbstractionStarter]: At program point L189(line 189) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or (or (< |old(~pumpRunning~0)| 1) (< ~waterLevel~0 1) .cse0) (<= 1 ~pumpRunning~0)) (or .cse1 .cse0 (not (= ~waterLevel~0 1)) .cse2) (or .cse1 (< ~waterLevel~0 2) .cse0 .cse2))) [2018-11-18 15:17:30,734 INFO L425 ceAbstractionStarter]: For program point L189-1(line 189) no Hoare annotation was computed. [2018-11-18 15:17:30,734 INFO L425 ceAbstractionStarter]: For program point L187(lines 187 204) no Hoare annotation was computed. [2018-11-18 15:17:30,734 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 183 207) no Hoare annotation was computed. [2018-11-18 15:17:30,734 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 183 207) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) .cse0 .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (or (< |old(~pumpRunning~0)| 1) .cse0 .cse1) (<= 1 ~pumpRunning~0)))) [2018-11-18 15:17:30,734 INFO L421 ceAbstractionStarter]: At program point L202(line 202) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) .cse0 .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (< |old(~pumpRunning~0)| 1) .cse0 .cse1))) [2018-11-18 15:17:30,734 INFO L425 ceAbstractionStarter]: For program point L202-1(lines 183 207) no Hoare annotation was computed. [2018-11-18 15:17:30,734 INFO L421 ceAbstractionStarter]: At program point L197(line 197) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or (< |old(~pumpRunning~0)| 1) (< ~waterLevel~0 1) .cse0) (or .cse1 .cse0 (not (= ~waterLevel~0 1)) .cse2) (or .cse1 (< ~waterLevel~0 2) .cse0 .cse2))) [2018-11-18 15:17:30,735 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 149 155) no Hoare annotation was computed. [2018-11-18 15:17:30,735 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 149 155) the Hoare annotation is: true [2018-11-18 15:17:30,735 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 45 110) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1) (= 0 ~methAndRunningLastTime~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:17:30,735 INFO L421 ceAbstractionStarter]: At program point L93(line 93) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (and (= 0 ~pumpRunning~0) (= 0 ~methAndRunningLastTime~0) .cse0) (<= 1 ~waterLevel~0)) (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) (not (= ~systemActive~0 0)) .cse0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 15:17:30,735 INFO L425 ceAbstractionStarter]: For program point L91(lines 91 97) no Hoare annotation was computed. [2018-11-18 15:17:30,735 INFO L421 ceAbstractionStarter]: At program point L91-1(lines 85 98) the Hoare annotation is: (let ((.cse1 (<= 2 ~waterLevel~0)) (.cse5 (= ~systemActive~0 1)) (.cse0 (= ~systemActive~0 0)) (.cse2 (= 0 ~pumpRunning~0)) (.cse4 (<= 1 ~waterLevel~0)) (.cse6 (= 0 ~methAndRunningLastTime~0)) (.cse3 (= test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= |old(~systemActive~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and .cse2 .cse4 .cse5 .cse6 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~pumpRunning~0) .cse1 .cse5 .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse0 .cse2 .cse4 .cse6 .cse3))) [2018-11-18 15:17:30,735 INFO L425 ceAbstractionStarter]: For program point L56(lines 55 102) no Hoare annotation was computed. [2018-11-18 15:17:30,735 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 45 110) no Hoare annotation was computed. [2018-11-18 15:17:30,735 INFO L425 ceAbstractionStarter]: For program point L85(lines 85 98) no Hoare annotation was computed. [2018-11-18 15:17:30,735 INFO L421 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (let ((.cse2 (= ~systemActive~0 1)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= 1 ~waterLevel~0)) (.cse3 (= 0 ~methAndRunningLastTime~0)) (.cse4 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse2 .cse4) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~systemActive~0 0) .cse0 .cse1 .cse3 .cse4))) [2018-11-18 15:17:30,735 INFO L425 ceAbstractionStarter]: For program point L75(lines 75 81) no Hoare annotation was computed. [2018-11-18 15:17:30,736 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2018-11-18 15:17:30,736 INFO L421 ceAbstractionStarter]: At program point L100(lines 55 102) the Hoare annotation is: (let ((.cse2 (= ~systemActive~0 1)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= 1 ~waterLevel~0)) (.cse3 (= 0 ~methAndRunningLastTime~0)) (.cse4 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse2 .cse4) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~systemActive~0 0) .cse0 .cse1 .cse3 .cse4))) [2018-11-18 15:17:30,736 INFO L421 ceAbstractionStarter]: At program point L67(line 67) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= 1 ~waterLevel~0)) (.cse3 (= 0 ~methAndRunningLastTime~0)) (.cse4 (= ~systemActive~0 1)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and (= ~systemActive~0 0) .cse0 .cse1 .cse2 .cse3) (not (= |old(~systemActive~0)| 1)) (and .cse0 .cse1 .cse4 .cse2 .cse3) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse4 .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 15:17:30,736 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 71) no Hoare annotation was computed. [2018-11-18 15:17:30,736 INFO L425 ceAbstractionStarter]: For program point L65-1(lines 65 71) no Hoare annotation was computed. [2018-11-18 15:17:30,736 INFO L425 ceAbstractionStarter]: For program point L57(lines 57 61) no Hoare annotation was computed. [2018-11-18 15:17:30,736 INFO L425 ceAbstractionStarter]: For program point L55-1(lines 55 102) no Hoare annotation was computed. [2018-11-18 15:17:30,736 INFO L421 ceAbstractionStarter]: At program point L103(lines 54 104) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:17:30,736 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 45 110) no Hoare annotation was computed. [2018-11-18 15:17:30,736 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 506 514) no Hoare annotation was computed. [2018-11-18 15:17:30,736 INFO L428 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 506 514) the Hoare annotation is: true [2018-11-18 15:17:30,736 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 506 514) no Hoare annotation was computed. [2018-11-18 15:17:30,736 INFO L425 ceAbstractionStarter]: For program point L354-1(line 354) no Hoare annotation was computed. [2018-11-18 15:17:30,737 INFO L425 ceAbstractionStarter]: For program point L352(lines 352 369) no Hoare annotation was computed. [2018-11-18 15:17:30,737 INFO L425 ceAbstractionStarter]: For program point L352-1(lines 344 372) no Hoare annotation was computed. [2018-11-18 15:17:30,737 INFO L421 ceAbstractionStarter]: At program point L350(line 350) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (not (= ~waterLevel~0 1))) (.cse4 (not (= ~systemActive~0 1))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= 0 ~methAndRunningLastTime~0))) (and (or .cse0 (not (= ~systemActive~0 0)) .cse1 .cse2 .cse3) (or .cse1 .cse0 .cse4 .cse2 .cse3) (or (< ~pumpRunning~0 1) (< ~waterLevel~0 2) .cse4 .cse3 .cse1))) [2018-11-18 15:17:30,737 INFO L425 ceAbstractionStarter]: For program point L350-1(line 350) no Hoare annotation was computed. [2018-11-18 15:17:30,737 INFO L421 ceAbstractionStarter]: At program point __utac_acc__Specification2_spec__2ENTRY(lines 344 372) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (not (= ~waterLevel~0 1))) (.cse4 (not (= ~systemActive~0 1))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= 0 ~methAndRunningLastTime~0))) (and (or .cse0 (not (= ~systemActive~0 0)) .cse1 .cse2 .cse3) (or .cse1 .cse0 .cse4 .cse2 .cse3) (or (< ~pumpRunning~0 1) (< ~waterLevel~0 2) .cse4 .cse3 .cse1))) [2018-11-18 15:17:30,737 INFO L421 ceAbstractionStarter]: At program point L359(line 359) the Hoare annotation is: (let ((.cse1 (not (= 0 ~pumpRunning~0))) (.cse0 (< ~waterLevel~0 1)) (.cse3 (< ~pumpRunning~0 1)) (.cse4 (< ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (or .cse1 .cse2)) (or .cse1 (not (= ~systemActive~0 0)) .cse0) (or .cse3 .cse4 (or .cse2 (not (= ~methaneLevelCritical~0 0)))) (or .cse3 .cse4 .cse2 (not (= |old(~methAndRunningLastTime~0)| 0))))) [2018-11-18 15:17:30,737 INFO L425 ceAbstractionStarter]: For program point L357(lines 357 363) no Hoare annotation was computed. [2018-11-18 15:17:30,737 INFO L425 ceAbstractionStarter]: For program point L356(lines 356 366) no Hoare annotation was computed. [2018-11-18 15:17:30,737 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__2EXIT(lines 344 372) no Hoare annotation was computed. [2018-11-18 15:17:30,737 INFO L421 ceAbstractionStarter]: At program point L354(line 354) the Hoare annotation is: (let ((.cse3 (not (= ~waterLevel~0 1))) (.cse1 (not (= ~systemActive~0 0))) (.cse7 (< ~waterLevel~0 1)) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse8 (< ~pumpRunning~0 1)) (.cse9 (< ~waterLevel~0 2)) (.cse5 (not (= ~systemActive~0 1))) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= 0 ~methAndRunningLastTime~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (or .cse0 .cse5 .cse6) .cse7) (or .cse2 .cse0 .cse5 .cse3 .cse4) (or .cse8 .cse9 (or .cse5 .cse6)) (or .cse1 .cse7 (or .cse0 .cse6)) (or .cse8 .cse9 .cse5 .cse4 .cse2))) [2018-11-18 15:17:30,737 INFO L421 ceAbstractionStarter]: At program point __utac_acc__Specification2_spec__1ENTRY(lines 336 343) the Hoare annotation is: (or (not (= 0 ~pumpRunning~0)) (= 0 ~methAndRunningLastTime~0) (not (= ~systemActive~0 1)) (not (= ~waterLevel~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= ~methaneLevelCritical~0 0))) [2018-11-18 15:17:30,738 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__1FINAL(lines 336 343) no Hoare annotation was computed. [2018-11-18 15:17:30,738 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__1EXIT(lines 336 343) no Hoare annotation was computed. [2018-11-18 15:17:30,738 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:17:30,738 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (<= |old(~waterLevel~0)| ~waterLevel~0) [2018-11-18 15:17:30,738 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:17:30,738 INFO L425 ceAbstractionStarter]: For program point activatePumpFINAL(lines 208 215) no Hoare annotation was computed. [2018-11-18 15:17:30,738 INFO L425 ceAbstractionStarter]: For program point activatePumpEXIT(lines 208 215) no Hoare annotation was computed. [2018-11-18 15:17:30,738 INFO L421 ceAbstractionStarter]: At program point activatePumpENTRY(lines 208 215) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 2) (not (= ~systemActive~0 1)) (not (= ~methAndRunningLastTime~0 0)) (= 0 ~pumpRunning~0)) [2018-11-18 15:17:30,738 INFO L425 ceAbstractionStarter]: For program point L289(lines 289 293) no Hoare annotation was computed. [2018-11-18 15:17:30,738 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 280 298) no Hoare annotation was computed. [2018-11-18 15:17:30,738 INFO L428 ceAbstractionStarter]: At program point L287(line 287) the Hoare annotation is: true [2018-11-18 15:17:30,738 INFO L425 ceAbstractionStarter]: For program point L289-2(lines 289 293) no Hoare annotation was computed. [2018-11-18 15:17:30,738 INFO L425 ceAbstractionStarter]: For program point L287-1(line 287) no Hoare annotation was computed. [2018-11-18 15:17:30,738 INFO L428 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 280 298) the Hoare annotation is: true [2018-11-18 15:17:30,739 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 280 298) no Hoare annotation was computed. [2018-11-18 15:17:30,739 INFO L421 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 439 450) the Hoare annotation is: (let ((.cse5 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 0))) (.cse2 (= 0 ~methaneLevelCritical~0)) (.cse6 (< ~waterLevel~0 2)) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse4 (not (= |old(~methaneLevelCritical~0)| 0)))) (and (or .cse0 .cse1 .cse2 (not (= ~waterLevel~0 1)) .cse3 .cse4) (or .cse0 (< ~waterLevel~0 1) .cse5 .cse3 .cse4 .cse2) (or (or (< ~pumpRunning~0 1) .cse6 .cse5 .cse3 .cse4) .cse2) (or .cse0 .cse1 .cse2 .cse6 .cse3 .cse4))) [2018-11-18 15:17:30,739 INFO L425 ceAbstractionStarter]: For program point L443-1(lines 439 450) no Hoare annotation was computed. [2018-11-18 15:17:30,739 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 439 450) no Hoare annotation was computed. [2018-11-18 15:17:30,739 INFO L428 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 451 459) the Hoare annotation is: true [2018-11-18 15:17:30,739 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 451 459) no Hoare annotation was computed. [2018-11-18 15:17:30,739 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 451 459) no Hoare annotation was computed. [2018-11-18 15:17:30,739 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 517 546) no Hoare annotation was computed. [2018-11-18 15:17:30,739 INFO L425 ceAbstractionStarter]: For program point L531(lines 531 535) no Hoare annotation was computed. [2018-11-18 15:17:30,739 INFO L428 ceAbstractionStarter]: At program point L531-1(lines 531 535) the Hoare annotation is: true [2018-11-18 15:17:30,739 INFO L425 ceAbstractionStarter]: For program point L527-1(lines 527 541) no Hoare annotation was computed. [2018-11-18 15:17:30,739 INFO L428 ceAbstractionStarter]: At program point L527-3(lines 527 541) the Hoare annotation is: true [2018-11-18 15:17:30,739 INFO L428 ceAbstractionStarter]: At program point L523(line 523) the Hoare annotation is: true [2018-11-18 15:17:30,739 INFO L425 ceAbstractionStarter]: For program point L523-1(line 523) no Hoare annotation was computed. [2018-11-18 15:17:30,739 INFO L428 ceAbstractionStarter]: At program point L542(lines 517 546) the Hoare annotation is: true [2018-11-18 15:17:30,740 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 517 546) the Hoare annotation is: true [2018-11-18 15:17:30,740 INFO L425 ceAbstractionStarter]: For program point L538(line 538) no Hoare annotation was computed. [2018-11-18 15:17:30,740 INFO L425 ceAbstractionStarter]: For program point L528(line 528) no Hoare annotation was computed. [2018-11-18 15:17:30,740 INFO L425 ceAbstractionStarter]: For program point L129(lines 128 147) no Hoare annotation was computed. [2018-11-18 15:17:30,740 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 125 148) the Hoare annotation is: (let ((.cse7 (= 0 ~pumpRunning~0)) (.cse5 (= 0 ~methAndRunningLastTime~0))) (let ((.cse1 (not (= ~systemActive~0 0))) (.cse6 (< |old(~waterLevel~0)| 2)) (.cse8 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (and .cse7 (= 1 ~waterLevel~0) .cse5)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse9 (not (= ~systemActive~0 1))) (.cse3 (not (= |old(~waterLevel~0)| 1))) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse5 .cse6 .cse4) (or .cse1 (or .cse0 .cse6) (and .cse7 .cse8)) (or (or .cse0 .cse6 .cse9 .cse4) (and .cse7 .cse5 .cse8)) (or (or (or (< |old(~pumpRunning~0)| 1) .cse9) .cse6) (and (<= 1 ~pumpRunning~0) .cse8)) (or .cse2 .cse0 .cse9 .cse3 .cse4)))) [2018-11-18 15:17:30,740 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 125 148) no Hoare annotation was computed. [2018-11-18 15:17:30,740 INFO L421 ceAbstractionStarter]: At program point L138(line 138) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 0))) (.cse3 (< |old(~waterLevel~0)| 2)) (.cse5 (= 0 ~pumpRunning~0)) (.cse6 (= 0 ~methAndRunningLastTime~0)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not (= ~systemActive~0 1))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 (< |old(~waterLevel~0)| 1) .cse2) (or (or .cse0 .cse3 .cse4 .cse2) (and .cse5 .cse6 (<= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse1 (or .cse0 .cse3)) (or (or (or (< |old(~pumpRunning~0)| 1) .cse4) .cse3) (and (<= 1 ~pumpRunning~0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or (and .cse5 (= 1 ~waterLevel~0) .cse6) .cse0 .cse4 (not (= |old(~waterLevel~0)| 1)) .cse2))) [2018-11-18 15:17:30,740 INFO L421 ceAbstractionStarter]: At program point L136(lines 136 142) the Hoare annotation is: (let ((.cse7 (= 0 ~pumpRunning~0)) (.cse10 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (= 1 ~waterLevel~0)) (.cse4 (not (= |old(~waterLevel~0)| 1))) (.cse6 (not (= ~systemActive~0 0))) (.cse8 (< |old(~waterLevel~0)| 2)) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse9 (and .cse7 .cse10)) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= 0 ~methAndRunningLastTime~0))) (and (or (and .cse0 .cse1) .cse2 .cse3 .cse4 .cse5) (or .cse2 .cse6 (and .cse7 .cse0 .cse1) .cse4 .cse5) (or .cse6 (or .cse2 .cse8) .cse9) (or (and .cse7 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (or (or (< |old(~pumpRunning~0)| 1) .cse3) .cse8)) (or .cse2 (< |old(~waterLevel~0)| 1) .cse3 .cse9 .cse5 (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse1 .cse10))))) [2018-11-18 15:17:30,740 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 125 148) no Hoare annotation was computed. [2018-11-18 15:17:30,740 INFO L421 ceAbstractionStarter]: At program point L131(line 131) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 0))) (.cse3 (< |old(~waterLevel~0)| 2)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not (= ~systemActive~0 1))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 (< |old(~waterLevel~0)| 1) .cse2) (or .cse1 (or .cse0 .cse3)) (or .cse0 .cse3 .cse4 .cse2) (or (or (or (< |old(~pumpRunning~0)| 1) .cse4) .cse3) (and (<= 1 ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 .cse4 (not (= |old(~waterLevel~0)| 1)) .cse2))) [2018-11-18 15:17:30,741 INFO L421 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 415 426) the Hoare annotation is: (or (<= |old(~waterLevel~0)| ~waterLevel~0) (or (< ~pumpRunning~0 1) (not (= ~systemActive~0 1)) (< |old(~waterLevel~0)| 2))) [2018-11-18 15:17:30,741 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 415 426) no Hoare annotation was computed. [2018-11-18 15:17:30,741 INFO L425 ceAbstractionStarter]: For program point L419-1(lines 415 426) no Hoare annotation was computed. [2018-11-18 15:17:30,741 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 571 577) no Hoare annotation was computed. [2018-11-18 15:17:30,741 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 571 577) the Hoare annotation is: true [2018-11-18 15:17:30,741 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:17:30,741 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1) (= 0 ~methAndRunningLastTime~0)) [2018-11-18 15:17:30,741 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:17:30,741 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:17:30,741 INFO L425 ceAbstractionStarter]: For program point L161(lines 161 178) no Hoare annotation was computed. [2018-11-18 15:17:30,741 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 157 181) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (not (= ~methAndRunningLastTime~0 0))) [2018-11-18 15:17:30,741 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 157 181) no Hoare annotation was computed. [2018-11-18 15:17:30,741 INFO L421 ceAbstractionStarter]: At program point L176(line 176) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 (not (= ~waterLevel~0 1)) .cse2) (or .cse0 (< ~waterLevel~0 2) .cse1 .cse2))) [2018-11-18 15:17:30,742 INFO L425 ceAbstractionStarter]: For program point L176-1(lines 157 181) no Hoare annotation was computed. [2018-11-18 15:17:30,742 INFO L421 ceAbstractionStarter]: At program point L171(line 171) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse0 (and (= 0 ~pumpRunning~0) (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~1)))) (and (or .cse0 .cse1 .cse2 (not (= ~waterLevel~0 1)) .cse3) (or (or .cse1 (< ~waterLevel~0 2) .cse2 .cse3) .cse0))) [2018-11-18 15:17:30,742 INFO L421 ceAbstractionStarter]: At program point L167(line 167) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (not (= ~methAndRunningLastTime~0 0)) (and (<= 2 ~waterLevel~0) (= 0 ~pumpRunning~0))) [2018-11-18 15:17:30,742 INFO L425 ceAbstractionStarter]: For program point L165(lines 165 173) no Hoare annotation was computed. [2018-11-18 15:17:30,742 INFO L421 ceAbstractionStarter]: At program point L163(line 163) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (not (= ~methAndRunningLastTime~0 0))) [2018-11-18 15:17:30,742 INFO L425 ceAbstractionStarter]: For program point L163-1(line 163) no Hoare annotation was computed. [2018-11-18 15:17:30,742 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 427 438) no Hoare annotation was computed. [2018-11-18 15:17:30,742 INFO L425 ceAbstractionStarter]: For program point L431-1(lines 427 438) no Hoare annotation was computed. [2018-11-18 15:17:30,742 INFO L421 ceAbstractionStarter]: At program point waterRiseENTRY(lines 427 438) the Hoare annotation is: (let ((.cse3 (= 1 ~waterLevel~0)) (.cse5 (not (= |old(~waterLevel~0)| 1))) (.cse1 (not (= ~systemActive~0 1))) (.cse7 (not (= ~systemActive~0 0))) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse6 (not (= ~methAndRunningLastTime~0 0))) (.cse4 (not (= 0 ~pumpRunning~0))) (.cse0 (<= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (< ~pumpRunning~0 1) .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse1 .cse5 .cse6) (or .cse4 .cse7 .cse3 .cse5 .cse6) (or (or .cse4 .cse1) .cse0 .cse2 .cse6) (or .cse7 .cse2 .cse6 .cse4 .cse0))) [2018-11-18 15:17:30,742 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 613 620) no Hoare annotation was computed. [2018-11-18 15:17:30,742 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 613 620) the Hoare annotation is: true [2018-11-18 15:17:30,743 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 617) no Hoare annotation was computed. [2018-11-18 15:17:30,743 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 613 620) no Hoare annotation was computed. [2018-11-18 15:17:30,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:17:30 BoogieIcfgContainer [2018-11-18 15:17:30,756 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:17:30,756 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:17:30,757 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:17:30,757 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:17:30,757 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:17:16" (3/4) ... [2018-11-18 15:17:30,760 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:17:30,764 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-18 15:17:30,764 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-18 15:17:30,764 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 15:17:30,764 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure stopSystem [2018-11-18 15:17:30,764 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-18 15:17:30,765 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-18 15:17:30,765 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-18 15:17:30,765 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-18 15:17:30,765 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-18 15:17:30,765 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-18 15:17:30,765 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-18 15:17:30,765 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 15:17:30,765 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-18 15:17:30,765 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-18 15:17:30,765 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification2_spec__2 [2018-11-18 15:17:30,765 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification2_spec__1 [2018-11-18 15:17:30,765 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 15:17:30,765 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-18 15:17:30,765 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-18 15:17:30,765 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 15:17:30,766 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-18 15:17:30,766 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 15:17:30,766 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 15:17:30,766 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-18 15:17:30,766 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-18 15:17:30,766 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 15:17:30,766 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 15:17:30,766 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-18 15:17:30,772 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2018-11-18 15:17:30,773 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 15:17:30,773 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 15:17:30,794 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(systemActive) == 1) || !(\old(methAndRunningLastTime) == 0)) || ((((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && 0 == methAndRunningLastTime) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || (((1 <= pumpRunning && 2 <= waterLevel) && systemActive == 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || ((((systemActive == 0 && 0 == pumpRunning) && 1 <= waterLevel) && 0 == methAndRunningLastTime) && splverifierCounter == 0) [2018-11-18 15:17:30,794 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 15:17:30,827 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c3f41f48-dabd-4b73-b0a8-52ae206aa498/bin-2019/utaipan/witness.graphml [2018-11-18 15:17:30,827 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:17:30,827 INFO L168 Benchmark]: Toolchain (without parser) took 14861.45 ms. Allocated memory was 1.0 GB in the beginning and 1.8 GB in the end (delta: 785.4 MB). Free memory was 956.6 MB in the beginning and 1.4 GB in the end (delta: -483.0 MB). Peak memory consumption was 302.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:17:30,828 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:17:30,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:17:30,828 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.18 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 15:17:30,828 INFO L168 Benchmark]: Boogie Preprocessor took 24.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:17:30,828 INFO L168 Benchmark]: RCFGBuilder took 444.07 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: 58.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 11.5 GB. [2018-11-18 15:17:30,829 INFO L168 Benchmark]: TraceAbstraction took 13939.38 ms. Allocated memory was 1.2 GB in the beginning and 1.8 GB in the end (delta: 648.0 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -374.7 MB). Peak memory consumption was 907.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:17:30,829 INFO L168 Benchmark]: Witness Printer took 70.34 ms. Allocated memory is still 1.8 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 78.4 kB). Peak memory consumption was 78.4 kB. Max. memory is 11.5 GB. [2018-11-18 15:17:30,830 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 361.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.18 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 24.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 444.07 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: 58.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13939.38 ms. Allocated memory was 1.2 GB in the beginning and 1.8 GB in the end (delta: 648.0 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -374.7 MB). Peak memory consumption was 907.4 MB. Max. memory is 11.5 GB. * Witness Printer took 70.34 ms. Allocated memory is still 1.8 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 78.4 kB). Peak memory consumption was 78.4 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 617]: 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: 527]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 517]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: ((((((!(\old(systemActive) == 1) || !(\old(methAndRunningLastTime) == 0)) || ((((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && 0 == methAndRunningLastTime) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || (((1 <= pumpRunning && 2 <= waterLevel) && systemActive == 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || ((((systemActive == 0 && 0 == pumpRunning) && 1 <= waterLevel) && 0 == methAndRunningLastTime) && splverifierCounter == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 29 procedures, 154 locations, 1 error locations. SAFE Result, 13.8s OverallTime, 14 OverallIterations, 2 TraceHistogramMax, 3.2s AutomataDifference, 0.0s DeadEndRemovalTime, 3.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 2533 SDtfs, 1589 SDslu, 5277 SDs, 0 SdLazy, 2082 SolverSat, 477 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1042 GetRequests, 950 SyntacticMatches, 5 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3988occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.8s AbstIntTime, 3 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 1869 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 63 LocationsWithAnnotation, 5940 PreInvPairs, 6076 NumberOfFragments, 2286 HoareAnnotationTreeSize, 5940 FomulaSimplifications, 14774 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 63 FomulaSimplificationsInter, 17115 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1887 NumberOfCodeBlocks, 1887 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2327 ConstructedInterpolants, 0 QuantifiedInterpolants, 460220 SizeOfPredicates, 16 NumberOfNonLiveVariables, 2430 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 444/472 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...