./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product41_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c317675e-9456-4431-a4c3-d83c7fac8a38/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c317675e-9456-4431-a4c3-d83c7fac8a38/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c317675e-9456-4431-a4c3-d83c7fac8a38/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c317675e-9456-4431-a4c3-d83c7fac8a38/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product41_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c317675e-9456-4431-a4c3-d83c7fac8a38/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c317675e-9456-4431-a4c3-d83c7fac8a38/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f25a9f8800d2b9b6ef21419533be8e4411f52f7f .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 19:32:34,505 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:32:34,506 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:32:34,512 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:32:34,513 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:32:34,513 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:32:34,514 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:32:34,515 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:32:34,515 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:32:34,516 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:32:34,516 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:32:34,516 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:32:34,517 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:32:34,517 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:32:34,518 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:32:34,518 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:32:34,518 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:32:34,519 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:32:34,520 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:32:34,521 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:32:34,522 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:32:34,522 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:32:34,523 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:32:34,523 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:32:34,524 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:32:34,524 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:32:34,525 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:32:34,525 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:32:34,526 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:32:34,526 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:32:34,526 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:32:34,527 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:32:34,527 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:32:34,527 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:32:34,527 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:32:34,528 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:32:34,528 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c317675e-9456-4431-a4c3-d83c7fac8a38/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:32:34,535 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:32:34,535 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:32:34,536 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:32:34,536 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:32:34,536 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:32:34,536 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:32:34,536 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:32:34,536 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:32:34,536 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:32:34,536 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:32:34,536 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:32:34,537 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:32:34,537 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:32:34,537 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:32:34,537 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:32:34,537 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:32:34,537 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:32:34,537 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:32:34,538 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:32:34,538 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:32:34,538 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:32:34,538 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:32:34,538 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:32:34,538 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:32:34,538 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:32:34,538 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:32:34,538 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:32:34,538 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:32:34,538 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:32:34,539 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:32:34,539 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:32:34,539 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:32:34,539 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:32:34,539 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:32:34,539 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:32:34,539 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:32:34,539 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_c317675e-9456-4431-a4c3-d83c7fac8a38/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f25a9f8800d2b9b6ef21419533be8e4411f52f7f [2018-12-09 19:32:34,557 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:32:34,566 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:32:34,569 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:32:34,570 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:32:34,570 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:32:34,571 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c317675e-9456-4431-a4c3-d83c7fac8a38/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product41_true-unreach-call_false-termination.cil.c [2018-12-09 19:32:34,613 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c317675e-9456-4431-a4c3-d83c7fac8a38/bin-2019/utaipan/data/f0eeaab1b/1d9d024d88024242b55cbea2ac1ac177/FLAG7cf2a6861 [2018-12-09 19:32:35,070 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:32:35,071 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c317675e-9456-4431-a4c3-d83c7fac8a38/sv-benchmarks/c/product-lines/minepump_spec3_product41_true-unreach-call_false-termination.cil.c [2018-12-09 19:32:35,077 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c317675e-9456-4431-a4c3-d83c7fac8a38/bin-2019/utaipan/data/f0eeaab1b/1d9d024d88024242b55cbea2ac1ac177/FLAG7cf2a6861 [2018-12-09 19:32:35,085 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c317675e-9456-4431-a4c3-d83c7fac8a38/bin-2019/utaipan/data/f0eeaab1b/1d9d024d88024242b55cbea2ac1ac177 [2018-12-09 19:32:35,087 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:32:35,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:32:35,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:32:35,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:32:35,091 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:32:35,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:32:35" (1/1) ... [2018-12-09 19:32:35,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354f5439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:32:35, skipping insertion in model container [2018-12-09 19:32:35,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:32:35" (1/1) ... [2018-12-09 19:32:35,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:32:35,119 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:32:35,268 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:32:35,276 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:32:35,364 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:32:35,377 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:32:35,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:32:35 WrapperNode [2018-12-09 19:32:35,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:32:35,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:32:35,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:32:35,378 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:32:35,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:32:35" (1/1) ... [2018-12-09 19:32:35,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:32:35" (1/1) ... [2018-12-09 19:32:35,399 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:32:35,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:32:35,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:32:35,399 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:32:35,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:32:35" (1/1) ... [2018-12-09 19:32:35,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:32:35" (1/1) ... [2018-12-09 19:32:35,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:32:35" (1/1) ... [2018-12-09 19:32:35,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:32:35" (1/1) ... [2018-12-09 19:32:35,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:32:35" (1/1) ... [2018-12-09 19:32:35,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:32:35" (1/1) ... [2018-12-09 19:32:35,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:32:35" (1/1) ... [2018-12-09 19:32:35,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:32:35,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:32:35,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:32:35,422 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:32:35,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:32:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c317675e-9456-4431-a4c3-d83c7fac8a38/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:32:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 19:32:35,462 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 19:32:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:32:35,462 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:32:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:32:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 19:32:35,462 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 19:32:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 19:32:35,462 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 19:32:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 19:32:35,462 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 19:32:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 19:32:35,463 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 19:32:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 19:32:35,463 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 19:32:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 19:32:35,463 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 19:32:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-09 19:32:35,463 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-09 19:32:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 19:32:35,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 19:32:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 19:32:35,463 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 19:32:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 19:32:35,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 19:32:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 19:32:35,463 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 19:32:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 19:32:35,464 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 19:32:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 19:32:35,464 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 19:32:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 19:32:35,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 19:32:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 19:32:35,464 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 19:32:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 19:32:35,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 19:32:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 19:32:35,464 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 19:32:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 19:32:35,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 19:32:35,465 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-09 19:32:35,465 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-09 19:32:35,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 19:32:35,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:32:35,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:32:35,465 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 19:32:35,465 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 19:32:35,465 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2018-12-09 19:32:35,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2018-12-09 19:32:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 19:32:35,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 19:32:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:32:35,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:32:35,767 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:32:35,767 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 19:32:35,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:32:35 BoogieIcfgContainer [2018-12-09 19:32:35,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:32:35,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:32:35,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:32:35,770 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:32:35,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:32:35" (1/3) ... [2018-12-09 19:32:35,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7bc4a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:32:35, skipping insertion in model container [2018-12-09 19:32:35,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:32:35" (2/3) ... [2018-12-09 19:32:35,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7bc4a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:32:35, skipping insertion in model container [2018-12-09 19:32:35,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:32:35" (3/3) ... [2018-12-09 19:32:35,772 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product41_true-unreach-call_false-termination.cil.c [2018-12-09 19:32:35,778 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:32:35,783 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:32:35,791 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:32:35,810 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:32:35,810 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:32:35,810 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:32:35,810 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:32:35,810 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:32:35,810 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:32:35,810 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:32:35,810 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:32:35,821 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states. [2018-12-09 19:32:35,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 19:32:35,826 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:32:35,826 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:32:35,827 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:32:35,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:32:35,831 INFO L82 PathProgramCache]: Analyzing trace with hash 498848746, now seen corresponding path program 1 times [2018-12-09 19:32:35,832 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:32:35,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:35,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:32:35,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:35,860 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:32:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:32:35,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:32:35,983 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:32:35,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:32:35,983 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:32:35,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 19:32:35,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 19:32:35,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:32:35,996 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 2 states. [2018-12-09 19:32:36,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:32:36,023 INFO L93 Difference]: Finished difference Result 246 states and 305 transitions. [2018-12-09 19:32:36,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 19:32:36,024 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2018-12-09 19:32:36,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:32:36,031 INFO L225 Difference]: With dead ends: 246 [2018-12-09 19:32:36,031 INFO L226 Difference]: Without dead ends: 123 [2018-12-09 19:32:36,034 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:32:36,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-12-09 19:32:36,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2018-12-09 19:32:36,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-12-09 19:32:36,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 144 transitions. [2018-12-09 19:32:36,068 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 144 transitions. Word has length 52 [2018-12-09 19:32:36,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:32:36,069 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 144 transitions. [2018-12-09 19:32:36,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 19:32:36,069 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 144 transitions. [2018-12-09 19:32:36,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-09 19:32:36,071 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:32:36,071 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:32:36,071 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:32:36,072 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:32:36,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1610957714, now seen corresponding path program 1 times [2018-12-09 19:32:36,072 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:32:36,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:36,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:32:36,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:36,073 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:32:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:32:36,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:32:36,139 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:32:36,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 19:32:36,139 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:32:36,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:32:36,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:32:36,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:32:36,141 INFO L87 Difference]: Start difference. First operand 123 states and 144 transitions. Second operand 3 states. [2018-12-09 19:32:36,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:32:36,153 INFO L93 Difference]: Finished difference Result 195 states and 227 transitions. [2018-12-09 19:32:36,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:32:36,153 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2018-12-09 19:32:36,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:32:36,154 INFO L225 Difference]: With dead ends: 195 [2018-12-09 19:32:36,154 INFO L226 Difference]: Without dead ends: 114 [2018-12-09 19:32:36,155 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:32:36,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-12-09 19:32:36,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-12-09 19:32:36,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-12-09 19:32:36,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 132 transitions. [2018-12-09 19:32:36,162 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 132 transitions. Word has length 53 [2018-12-09 19:32:36,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:32:36,163 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 132 transitions. [2018-12-09 19:32:36,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:32:36,163 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 132 transitions. [2018-12-09 19:32:36,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-09 19:32:36,164 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:32:36,164 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:32:36,164 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:32:36,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:32:36,164 INFO L82 PathProgramCache]: Analyzing trace with hash -2062171132, now seen corresponding path program 1 times [2018-12-09 19:32:36,164 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:32:36,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:36,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:32:36,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:36,165 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:32:36,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:32:36,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:32:36,242 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:32:36,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:32:36,242 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:32:36,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 19:32:36,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 19:32:36,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:32:36,243 INFO L87 Difference]: Start difference. First operand 114 states and 132 transitions. Second operand 7 states. [2018-12-09 19:32:36,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:32:36,366 INFO L93 Difference]: Finished difference Result 204 states and 241 transitions. [2018-12-09 19:32:36,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 19:32:36,366 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2018-12-09 19:32:36,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:32:36,367 INFO L225 Difference]: With dead ends: 204 [2018-12-09 19:32:36,367 INFO L226 Difference]: Without dead ends: 114 [2018-12-09 19:32:36,368 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 19:32:36,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-12-09 19:32:36,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-12-09 19:32:36,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-12-09 19:32:36,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 131 transitions. [2018-12-09 19:32:36,374 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 131 transitions. Word has length 57 [2018-12-09 19:32:36,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:32:36,375 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 131 transitions. [2018-12-09 19:32:36,375 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 19:32:36,375 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 131 transitions. [2018-12-09 19:32:36,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-09 19:32:36,376 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:32:36,376 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:32:36,376 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:32:36,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:32:36,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1534409439, now seen corresponding path program 1 times [2018-12-09 19:32:36,376 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:32:36,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:36,377 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:32:36,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:36,377 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:32:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:32:36,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:32:36,439 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:32:36,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 19:32:36,439 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:32:36,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 19:32:36,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 19:32:36,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 19:32:36,439 INFO L87 Difference]: Start difference. First operand 114 states and 131 transitions. Second operand 5 states. [2018-12-09 19:32:36,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:32:36,699 INFO L93 Difference]: Finished difference Result 301 states and 361 transitions. [2018-12-09 19:32:36,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 19:32:36,699 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2018-12-09 19:32:36,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:32:36,701 INFO L225 Difference]: With dead ends: 301 [2018-12-09 19:32:36,701 INFO L226 Difference]: Without dead ends: 211 [2018-12-09 19:32:36,701 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:32:36,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2018-12-09 19:32:36,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 193. [2018-12-09 19:32:36,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-12-09 19:32:36,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 222 transitions. [2018-12-09 19:32:36,715 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 222 transitions. Word has length 65 [2018-12-09 19:32:36,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:32:36,715 INFO L480 AbstractCegarLoop]: Abstraction has 193 states and 222 transitions. [2018-12-09 19:32:36,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 19:32:36,715 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 222 transitions. [2018-12-09 19:32:36,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-09 19:32:36,716 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:32:36,716 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:32:36,716 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:32:36,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:32:36,717 INFO L82 PathProgramCache]: Analyzing trace with hash 2018996323, now seen corresponding path program 1 times [2018-12-09 19:32:36,717 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:32:36,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:36,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:32:36,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:36,717 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:32:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:32:36,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:32:36,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:32:36,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 19:32:36,782 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:32:36,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 19:32:36,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 19:32:36,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 19:32:36,783 INFO L87 Difference]: Start difference. First operand 193 states and 222 transitions. Second operand 8 states. [2018-12-09 19:32:36,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:32:36,819 INFO L93 Difference]: Finished difference Result 369 states and 435 transitions. [2018-12-09 19:32:36,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:32:36,819 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2018-12-09 19:32:36,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:32:36,821 INFO L225 Difference]: With dead ends: 369 [2018-12-09 19:32:36,821 INFO L226 Difference]: Without dead ends: 200 [2018-12-09 19:32:36,822 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 19:32:36,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2018-12-09 19:32:36,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 197. [2018-12-09 19:32:36,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-12-09 19:32:36,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 226 transitions. [2018-12-09 19:32:36,832 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 226 transitions. Word has length 79 [2018-12-09 19:32:36,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:32:36,832 INFO L480 AbstractCegarLoop]: Abstraction has 197 states and 226 transitions. [2018-12-09 19:32:36,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 19:32:36,832 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 226 transitions. [2018-12-09 19:32:36,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-09 19:32:36,833 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:32:36,833 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:32:36,834 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:32:36,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:32:36,834 INFO L82 PathProgramCache]: Analyzing trace with hash 2091382881, now seen corresponding path program 1 times [2018-12-09 19:32:36,834 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:32:36,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:36,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:32:36,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:36,835 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:32:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:32:36,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:32:36,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:32:36,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:32:36,884 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:32:36,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:32:36,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:32:36,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:32:36,885 INFO L87 Difference]: Start difference. First operand 197 states and 226 transitions. Second operand 6 states. [2018-12-09 19:32:37,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:32:37,003 INFO L93 Difference]: Finished difference Result 489 states and 589 transitions. [2018-12-09 19:32:37,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 19:32:37,003 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2018-12-09 19:32:37,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:32:37,005 INFO L225 Difference]: With dead ends: 489 [2018-12-09 19:32:37,005 INFO L226 Difference]: Without dead ends: 316 [2018-12-09 19:32:37,005 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:32:37,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2018-12-09 19:32:37,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 312. [2018-12-09 19:32:37,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2018-12-09 19:32:37,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 363 transitions. [2018-12-09 19:32:37,021 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 363 transitions. Word has length 79 [2018-12-09 19:32:37,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:32:37,021 INFO L480 AbstractCegarLoop]: Abstraction has 312 states and 363 transitions. [2018-12-09 19:32:37,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:32:37,021 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 363 transitions. [2018-12-09 19:32:37,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-09 19:32:37,022 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:32:37,022 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:32:37,023 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:32:37,023 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:32:37,023 INFO L82 PathProgramCache]: Analyzing trace with hash 345874407, now seen corresponding path program 1 times [2018-12-09 19:32:37,023 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:32:37,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:37,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:32:37,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:37,024 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:32:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:32:37,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:32:37,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:32:37,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:32:37,076 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:32:37,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:32:37,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:32:37,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:32:37,077 INFO L87 Difference]: Start difference. First operand 312 states and 363 transitions. Second operand 6 states. [2018-12-09 19:32:37,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:32:37,181 INFO L93 Difference]: Finished difference Result 649 states and 783 transitions. [2018-12-09 19:32:37,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:32:37,182 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2018-12-09 19:32:37,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:32:37,183 INFO L225 Difference]: With dead ends: 649 [2018-12-09 19:32:37,184 INFO L226 Difference]: Without dead ends: 476 [2018-12-09 19:32:37,184 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:32:37,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2018-12-09 19:32:37,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 458. [2018-12-09 19:32:37,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2018-12-09 19:32:37,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 544 transitions. [2018-12-09 19:32:37,203 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 544 transitions. Word has length 83 [2018-12-09 19:32:37,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:32:37,203 INFO L480 AbstractCegarLoop]: Abstraction has 458 states and 544 transitions. [2018-12-09 19:32:37,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:32:37,203 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 544 transitions. [2018-12-09 19:32:37,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-09 19:32:37,205 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:32:37,205 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:32:37,205 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:32:37,205 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:32:37,205 INFO L82 PathProgramCache]: Analyzing trace with hash 603253610, now seen corresponding path program 1 times [2018-12-09 19:32:37,205 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:32:37,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:37,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:32:37,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:37,206 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:32:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:32:37,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:32:37,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:32:37,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 19:32:37,252 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:32:37,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 19:32:37,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 19:32:37,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:32:37,253 INFO L87 Difference]: Start difference. First operand 458 states and 544 transitions. Second operand 9 states. [2018-12-09 19:32:37,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:32:37,302 INFO L93 Difference]: Finished difference Result 797 states and 959 transitions. [2018-12-09 19:32:37,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 19:32:37,303 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2018-12-09 19:32:37,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:32:37,306 INFO L225 Difference]: With dead ends: 797 [2018-12-09 19:32:37,306 INFO L226 Difference]: Without dead ends: 478 [2018-12-09 19:32:37,307 INFO L631 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 [2018-12-09 19:32:37,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2018-12-09 19:32:37,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 473. [2018-12-09 19:32:37,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2018-12-09 19:32:37,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 561 transitions. [2018-12-09 19:32:37,333 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 561 transitions. Word has length 83 [2018-12-09 19:32:37,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:32:37,334 INFO L480 AbstractCegarLoop]: Abstraction has 473 states and 561 transitions. [2018-12-09 19:32:37,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 19:32:37,334 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 561 transitions. [2018-12-09 19:32:37,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-09 19:32:37,335 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:32:37,335 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:32:37,336 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:32:37,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:32:37,336 INFO L82 PathProgramCache]: Analyzing trace with hash 675640168, now seen corresponding path program 1 times [2018-12-09 19:32:37,336 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:32:37,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:37,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:32:37,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:37,337 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:32:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:32:37,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:32:37,379 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:32:37,379 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 19:32:37,379 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:32:37,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 19:32:37,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 19:32:37,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 19:32:37,380 INFO L87 Difference]: Start difference. First operand 473 states and 561 transitions. Second operand 5 states. [2018-12-09 19:32:37,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:32:37,405 INFO L93 Difference]: Finished difference Result 799 states and 966 transitions. [2018-12-09 19:32:37,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 19:32:37,406 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2018-12-09 19:32:37,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:32:37,408 INFO L225 Difference]: With dead ends: 799 [2018-12-09 19:32:37,408 INFO L226 Difference]: Without dead ends: 465 [2018-12-09 19:32:37,409 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 19:32:37,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2018-12-09 19:32:37,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 465. [2018-12-09 19:32:37,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2018-12-09 19:32:37,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 550 transitions. [2018-12-09 19:32:37,430 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 550 transitions. Word has length 83 [2018-12-09 19:32:37,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:32:37,430 INFO L480 AbstractCegarLoop]: Abstraction has 465 states and 550 transitions. [2018-12-09 19:32:37,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 19:32:37,431 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 550 transitions. [2018-12-09 19:32:37,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-12-09 19:32:37,432 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:32:37,432 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:32:37,432 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:32:37,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:32:37,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1645258577, now seen corresponding path program 1 times [2018-12-09 19:32:37,433 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:32:37,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:37,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:32:37,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:37,433 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:32:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:32:37,494 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 19:32:37,494 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:32:37,494 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:32:37,494 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 96 with the following transitions: [2018-12-09 19:32:37,496 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [19], [20], [23], [25], [26], [27], [31], [32], [33], [36], [38], [41], [51], [53], [62], [66], [70], [73], [78], [84], [86], [89], [106], [107], [108], [110], [113], [118], [119], [120], [121], [123], [128], [130], [131], [165], [166], [172], [176], [183], [185], [190], [192], [195], [197], [202], [216], [222], [226], [227], [230], [231], [232], [233], [234], [235], [236], [237], [238], [240], [242], [243], [244], [245], [246], [247], [252], [253], [256], [260], [261], [264], [265], [272], [273], [274], [276], [277], [278], [279], [280], [281], [282], [284], [285], [286] [2018-12-09 19:32:37,523 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:32:37,523 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:32:37,821 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 19:32:37,822 INFO L272 AbstractInterpreter]: Visited 93 different actions 95 times. Never merged. Never widened. Performed 2996 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2996 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-09 19:32:37,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:32:37,828 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 19:32:37,828 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:32:37,828 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c317675e-9456-4431-a4c3-d83c7fac8a38/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 19:32:37,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:32:37,834 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 19:32:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:32:37,912 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:32:37,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:32:37,978 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 19:32:38,190 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 19:32:38,215 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 19:32:38,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 9] total 19 [2018-12-09 19:32:38,216 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:32:38,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 19:32:38,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 19:32:38,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2018-12-09 19:32:38,217 INFO L87 Difference]: Start difference. First operand 465 states and 550 transitions. Second operand 8 states. [2018-12-09 19:32:38,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:32:38,406 INFO L93 Difference]: Finished difference Result 1310 states and 1585 transitions. [2018-12-09 19:32:38,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:32:38,406 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 95 [2018-12-09 19:32:38,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:32:38,409 INFO L225 Difference]: With dead ends: 1310 [2018-12-09 19:32:38,409 INFO L226 Difference]: Without dead ends: 869 [2018-12-09 19:32:38,411 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 179 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2018-12-09 19:32:38,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2018-12-09 19:32:38,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 866. [2018-12-09 19:32:38,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2018-12-09 19:32:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1025 transitions. [2018-12-09 19:32:38,450 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1025 transitions. Word has length 95 [2018-12-09 19:32:38,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:32:38,450 INFO L480 AbstractCegarLoop]: Abstraction has 866 states and 1025 transitions. [2018-12-09 19:32:38,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 19:32:38,450 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1025 transitions. [2018-12-09 19:32:38,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-12-09 19:32:38,452 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:32:38,452 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:32:38,453 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:32:38,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:32:38,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1976763213, now seen corresponding path program 1 times [2018-12-09 19:32:38,453 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:32:38,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:38,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:32:38,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:38,454 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:32:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:32:38,524 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 19:32:38,524 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:32:38,524 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 19:32:38,524 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:32:38,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 19:32:38,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 19:32:38,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 19:32:38,525 INFO L87 Difference]: Start difference. First operand 866 states and 1025 transitions. Second operand 10 states. [2018-12-09 19:32:38,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:32:38,647 INFO L93 Difference]: Finished difference Result 1656 states and 1997 transitions. [2018-12-09 19:32:38,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 19:32:38,647 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 99 [2018-12-09 19:32:38,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:32:38,649 INFO L225 Difference]: With dead ends: 1656 [2018-12-09 19:32:38,649 INFO L226 Difference]: Without dead ends: 814 [2018-12-09 19:32:38,650 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-09 19:32:38,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2018-12-09 19:32:38,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 800. [2018-12-09 19:32:38,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 800 states. [2018-12-09 19:32:38,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 933 transitions. [2018-12-09 19:32:38,673 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 933 transitions. Word has length 99 [2018-12-09 19:32:38,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:32:38,673 INFO L480 AbstractCegarLoop]: Abstraction has 800 states and 933 transitions. [2018-12-09 19:32:38,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 19:32:38,673 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 933 transitions. [2018-12-09 19:32:38,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-12-09 19:32:38,675 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:32:38,675 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:32:38,675 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:32:38,675 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:32:38,675 INFO L82 PathProgramCache]: Analyzing trace with hash 636816401, now seen corresponding path program 1 times [2018-12-09 19:32:38,675 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:32:38,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:38,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:32:38,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:32:38,676 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:32:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:32:38,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 19:32:38,739 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:32:38,739 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 19:32:38,739 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:32:38,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 19:32:38,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 19:32:38,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 19:32:38,740 INFO L87 Difference]: Start difference. First operand 800 states and 933 transitions. Second operand 10 states. [2018-12-09 19:32:38,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:32:38,845 INFO L93 Difference]: Finished difference Result 1577 states and 1844 transitions. [2018-12-09 19:32:38,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 19:32:38,846 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 99 [2018-12-09 19:32:38,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:32:38,846 INFO L225 Difference]: With dead ends: 1577 [2018-12-09 19:32:38,846 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 19:32:38,848 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-09 19:32:38,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 19:32:38,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 19:32:38,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 19:32:38,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 19:32:38,849 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 99 [2018-12-09 19:32:38,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:32:38,849 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 19:32:38,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 19:32:38,849 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 19:32:38,849 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 19:32:38,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 19:32:39,372 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 29 [2018-12-09 19:32:39,549 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 36 [2018-12-09 19:32:39,948 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2018-12-09 19:32:40,644 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 37 [2018-12-09 19:32:40,777 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2018-12-09 19:32:40,778 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2018-12-09 19:32:40,778 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2018-12-09 19:32:40,778 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2018-12-09 19:32:40,778 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 68 76) no Hoare annotation was computed. [2018-12-09 19:32:40,778 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 528 550) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 19:32:40,778 INFO L444 ceAbstractionStarter]: At program point L540(line 540) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= main_~tmp~5 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 19:32:40,778 INFO L444 ceAbstractionStarter]: At program point L540-1(line 540) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= main_~tmp~5 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 19:32:40,778 INFO L448 ceAbstractionStarter]: For program point L538(lines 538 545) no Hoare annotation was computed. [2018-12-09 19:32:40,778 INFO L448 ceAbstractionStarter]: For program point L538-1(lines 538 545) no Hoare annotation was computed. [2018-12-09 19:32:40,778 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 528 550) no Hoare annotation was computed. [2018-12-09 19:32:40,778 INFO L448 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-12-09 19:32:40,778 INFO L444 ceAbstractionStarter]: At program point L535(line 535) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 19:32:40,778 INFO L444 ceAbstractionStarter]: At program point L534(line 534) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 19:32:40,778 INFO L444 ceAbstractionStarter]: At program point L534-1(line 534) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 19:32:40,779 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 528 550) no Hoare annotation was computed. [2018-12-09 19:32:40,779 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 193 201) no Hoare annotation was computed. [2018-12-09 19:32:40,779 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 193 201) the Hoare annotation is: true [2018-12-09 19:32:40,779 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 193 201) no Hoare annotation was computed. [2018-12-09 19:32:40,779 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2018-12-09 19:32:40,779 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2018-12-09 19:32:40,779 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 518 527) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 19:32:40,779 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 518 527) no Hoare annotation was computed. [2018-12-09 19:32:40,779 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 518 527) no Hoare annotation was computed. [2018-12-09 19:32:40,779 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 182 192) the Hoare annotation is: true [2018-12-09 19:32:40,779 INFO L451 ceAbstractionStarter]: At program point L187(line 187) the Hoare annotation is: true [2018-12-09 19:32:40,779 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 182 192) no Hoare annotation was computed. [2018-12-09 19:32:40,779 INFO L448 ceAbstractionStarter]: For program point L187-1(line 187) no Hoare annotation was computed. [2018-12-09 19:32:40,779 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 182 192) no Hoare annotation was computed. [2018-12-09 19:32:40,779 INFO L448 ceAbstractionStarter]: For program point L445(lines 445 451) no Hoare annotation was computed. [2018-12-09 19:32:40,779 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 441 454) no Hoare annotation was computed. [2018-12-09 19:32:40,779 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 441 454) the Hoare annotation is: true [2018-12-09 19:32:40,779 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 441 454) no Hoare annotation was computed. [2018-12-09 19:32:40,779 INFO L444 ceAbstractionStarter]: At program point L129(line 129) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= 0 ~pumpRunning~0)) (.cse4 (not (= 1 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse2) (or .cse1 .cse2 .cse3 .cse5) (or .cse4 .cse2 .cse5))) [2018-12-09 19:32:40,779 INFO L448 ceAbstractionStarter]: For program point L129-1(line 129) no Hoare annotation was computed. [2018-12-09 19:32:40,780 INFO L448 ceAbstractionStarter]: For program point L127(lines 127 144) no Hoare annotation was computed. [2018-12-09 19:32:40,780 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 123 147) no Hoare annotation was computed. [2018-12-09 19:32:40,780 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 123 147) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (= 0 ~pumpRunning~0)) (.cse2 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (= ~pumpRunning~0 1)) (.cse3 (not (= ~systemActive~0 1))) (.cse6 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse3 .cse5) (or .cse4 .cse3 .cse5 .cse6) (or .cse2 .cse1 .cse3 .cse6))) [2018-12-09 19:32:40,780 INFO L444 ceAbstractionStarter]: At program point L142(line 142) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (= ~pumpRunning~0 1)) (.cse3 (not (= ~systemActive~0 1))) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse3 .cse5) (or .cse0 .cse4 .cse3) (or .cse2 .cse1 .cse3 .cse5))) [2018-12-09 19:32:40,780 INFO L448 ceAbstractionStarter]: For program point L142-1(lines 123 147) no Hoare annotation was computed. [2018-12-09 19:32:40,780 INFO L444 ceAbstractionStarter]: At program point L137(line 137) the Hoare annotation is: (let ((.cse5 (not (= 1 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (and (not (= ~waterLevel~0 2)) (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse1) (or .cse5 .cse1 .cse2) (or .cse4 .cse0 .cse1 .cse3))) [2018-12-09 19:32:40,780 INFO L444 ceAbstractionStarter]: At program point L133(line 133) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= 0 ~pumpRunning~0)) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse5 (not (= 1 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse2 .cse1) (or .cse4 .cse5 .cse2) (or .cse5 .cse2 .cse3))) [2018-12-09 19:32:40,780 INFO L448 ceAbstractionStarter]: For program point L131(lines 131 139) no Hoare annotation was computed. [2018-12-09 19:32:40,780 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 115 121) no Hoare annotation was computed. [2018-12-09 19:32:40,780 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 115 121) the Hoare annotation is: true [2018-12-09 19:32:40,780 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 261 324) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 19:32:40,780 INFO L444 ceAbstractionStarter]: At program point L283(line 283) the Hoare annotation is: (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse1 (= 0 ~pumpRunning~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse4 (= ~methaneLevelCritical~0 1)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and (not (= ~waterLevel~0 2)) .cse0 .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse3 .cse2) (and .cse1 .cse4 .cse2) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse3 .cse4 .cse2))) [2018-12-09 19:32:40,780 INFO L444 ceAbstractionStarter]: At program point L314(lines 271 316) the Hoare annotation is: (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse1 (= 0 ~pumpRunning~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse4 (= ~methaneLevelCritical~0 1)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and (not (= ~waterLevel~0 2)) .cse0 .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse3 .cse2) (and .cse1 .cse4 .cse2) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse3 .cse4 .cse2))) [2018-12-09 19:32:40,780 INFO L448 ceAbstractionStarter]: For program point L281(lines 281 287) no Hoare annotation was computed. [2018-12-09 19:32:40,780 INFO L448 ceAbstractionStarter]: For program point L281-1(lines 281 287) no Hoare annotation was computed. [2018-12-09 19:32:40,780 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 261 324) no Hoare annotation was computed. [2018-12-09 19:32:40,780 INFO L448 ceAbstractionStarter]: For program point L273(lines 273 277) no Hoare annotation was computed. [2018-12-09 19:32:40,781 INFO L444 ceAbstractionStarter]: At program point L317(lines 270 318) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 19:32:40,781 INFO L448 ceAbstractionStarter]: For program point L307(lines 307 311) no Hoare annotation was computed. [2018-12-09 19:32:40,781 INFO L444 ceAbstractionStarter]: At program point L307-2(lines 301 312) the Hoare annotation is: (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse1 (= 0 ~pumpRunning~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse4 (= ~methaneLevelCritical~0 1)) (.cse2 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse1 .cse4 .cse2) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse3 .cse4 .cse2))) [2018-12-09 19:32:40,781 INFO L448 ceAbstractionStarter]: For program point L272(lines 271 316) no Hoare annotation was computed. [2018-12-09 19:32:40,781 INFO L448 ceAbstractionStarter]: For program point L301(lines 301 312) no Hoare annotation was computed. [2018-12-09 19:32:40,781 INFO L444 ceAbstractionStarter]: At program point L293(line 293) the Hoare annotation is: (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse1 (= 0 ~pumpRunning~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse4 (= ~methaneLevelCritical~0 1)) (.cse2 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse1 .cse4 .cse2) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse3 .cse4 .cse2))) [2018-12-09 19:32:40,781 INFO L448 ceAbstractionStarter]: For program point L291(lines 291 297) no Hoare annotation was computed. [2018-12-09 19:32:40,781 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 261 324) no Hoare annotation was computed. [2018-12-09 19:32:40,781 INFO L448 ceAbstractionStarter]: For program point L291-1(lines 291 297) no Hoare annotation was computed. [2018-12-09 19:32:40,781 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__highWaterSensorENTRY(lines 148 155) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= 0 ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 19:32:40,781 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorEXIT(lines 148 155) no Hoare annotation was computed. [2018-12-09 19:32:40,781 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorFINAL(lines 148 155) no Hoare annotation was computed. [2018-12-09 19:32:40,781 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:32:40,781 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~pumpRunning~0 |old(~pumpRunning~0)|) [2018-12-09 19:32:40,781 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:32:40,781 INFO L448 ceAbstractionStarter]: For program point L162-1(line 162) no Hoare annotation was computed. [2018-12-09 19:32:40,781 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 157 173) no Hoare annotation was computed. [2018-12-09 19:32:40,781 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 157 173) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= 0 ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 19:32:40,782 INFO L444 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2) (or .cse0 (and (= ~methaneLevelCritical~0 activatePump_~tmp~1) .cse2) .cse1 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 19:32:40,782 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 157 173) no Hoare annotation was computed. [2018-12-09 19:32:40,782 INFO L448 ceAbstractionStarter]: For program point L164(lines 164 170) no Hoare annotation was computed. [2018-12-09 19:32:40,782 INFO L444 ceAbstractionStarter]: At program point L162(line 162) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= 0 ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 19:32:40,782 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 432 440) the Hoare annotation is: true [2018-12-09 19:32:40,782 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 432 440) no Hoare annotation was computed. [2018-12-09 19:32:40,782 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 432 440) no Hoare annotation was computed. [2018-12-09 19:32:40,782 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 238 256) no Hoare annotation was computed. [2018-12-09 19:32:40,782 INFO L448 ceAbstractionStarter]: For program point L247(lines 247 251) no Hoare annotation was computed. [2018-12-09 19:32:40,782 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 238 256) the Hoare annotation is: true [2018-12-09 19:32:40,782 INFO L451 ceAbstractionStarter]: At program point L245(line 245) the Hoare annotation is: true [2018-12-09 19:32:40,782 INFO L448 ceAbstractionStarter]: For program point L247-2(lines 247 251) no Hoare annotation was computed. [2018-12-09 19:32:40,782 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 238 256) no Hoare annotation was computed. [2018-12-09 19:32:40,782 INFO L448 ceAbstractionStarter]: For program point L245-1(line 245) no Hoare annotation was computed. [2018-12-09 19:32:40,782 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 388 399) the Hoare annotation is: (let ((.cse2 (= 0 ~methaneLevelCritical~0)) (.cse3 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse4 (not (= 1 ~pumpRunning~0))) (.cse5 (not (= |old(~methaneLevelCritical~0)| 1))) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1))) (.cse6 (= ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse4 .cse1 .cse3) (or .cse5 .cse6 .cse4 .cse1) (or .cse5 .cse0 .cse1 .cse6))) [2018-12-09 19:32:40,782 INFO L448 ceAbstractionStarter]: For program point L392-1(lines 388 399) no Hoare annotation was computed. [2018-12-09 19:32:40,782 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 388 399) no Hoare annotation was computed. [2018-12-09 19:32:40,782 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 457 486) no Hoare annotation was computed. [2018-12-09 19:32:40,782 INFO L448 ceAbstractionStarter]: For program point L478(line 478) no Hoare annotation was computed. [2018-12-09 19:32:40,782 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 457 486) the Hoare annotation is: true [2018-12-09 19:32:40,782 INFO L448 ceAbstractionStarter]: For program point L471(lines 471 475) no Hoare annotation was computed. [2018-12-09 19:32:40,783 INFO L451 ceAbstractionStarter]: At program point L471-1(lines 471 475) the Hoare annotation is: true [2018-12-09 19:32:40,783 INFO L448 ceAbstractionStarter]: For program point L468(line 468) no Hoare annotation was computed. [2018-12-09 19:32:40,783 INFO L451 ceAbstractionStarter]: At program point L467-2(lines 467 481) the Hoare annotation is: true [2018-12-09 19:32:40,783 INFO L451 ceAbstractionStarter]: At program point L463(line 463) the Hoare annotation is: true [2018-12-09 19:32:40,783 INFO L448 ceAbstractionStarter]: For program point L463-1(line 463) no Hoare annotation was computed. [2018-12-09 19:32:40,783 INFO L451 ceAbstractionStarter]: At program point L482(lines 457 486) the Hoare annotation is: true [2018-12-09 19:32:40,783 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 400 408) the Hoare annotation is: true [2018-12-09 19:32:40,783 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 400 408) no Hoare annotation was computed. [2018-12-09 19:32:40,783 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 400 408) no Hoare annotation was computed. [2018-12-09 19:32:40,783 INFO L444 ceAbstractionStarter]: At program point L97(line 97) the Hoare annotation is: (let ((.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~pumpRunning~0 1)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse6 (= 1 ~waterLevel~0)) (.cse2 (not (= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse7 (not (= |old(~waterLevel~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse3 .cse5) (or .cse6 .cse2 .cse3 .cse7 .cse5) (or .cse0 .cse4 .cse3) (or .cse1 .cse2 .cse3 .cse5) (or .cse0 .cse6 .cse2 .cse3 .cse7))) [2018-12-09 19:32:40,783 INFO L448 ceAbstractionStarter]: For program point L95(lines 94 113) no Hoare annotation was computed. [2018-12-09 19:32:40,783 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 91 114) the Hoare annotation is: (let ((.cse8 (= |old(~waterLevel~0)| 2)) (.cse9 (not (= ~waterLevel~0 2))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse7 (= 0 ~pumpRunning~0)) (.cse1 (= ~pumpRunning~0 1)) (.cse10 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse5 (= 1 ~waterLevel~0)) (.cse2 (not (= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse6 (not (= |old(~waterLevel~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse3 .cse6) (or .cse0 .cse4 .cse3 .cse7) (or .cse0 .cse8 .cse4 .cse3 .cse9) (or .cse9 .cse8 .cse2 .cse3 .cse10) (or .cse8 .cse4 .cse3 .cse10 .cse9) (or .cse5 .cse2 .cse3 .cse6 .cse10) (or .cse4 .cse5 .cse3 .cse6 .cse10) (or .cse0 .cse8 .cse2 .cse3 .cse9) (or .cse4 .cse3 .cse7 .cse10) (or .cse1 .cse2 .cse3 .cse10) (or .cse0 .cse5 .cse2 .cse3 .cse6))) [2018-12-09 19:32:40,783 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 91 114) no Hoare annotation was computed. [2018-12-09 19:32:40,783 INFO L444 ceAbstractionStarter]: At program point L104(line 104) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse8 (= |old(~waterLevel~0)| 2)) (.cse9 (not (= ~waterLevel~0 2))) (.cse5 (= 1 ~waterLevel~0)) (.cse6 (not (= |old(~waterLevel~0)| 1))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse7 (= 0 ~pumpRunning~0)) (.cse2 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (= ~pumpRunning~0 1)) (.cse3 (not (= ~systemActive~0 1))) (.cse10 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse3 .cse6) (or .cse0 .cse4 .cse3 .cse7) (or .cse0 .cse8 .cse4 .cse3 .cse9) (or .cse8 .cse4 .cse3 .cse10 .cse9) (or .cse4 .cse5 .cse3 .cse6 .cse10) (or .cse4 .cse3 .cse7 .cse10) (or .cse2 .cse1 .cse3 .cse10))) [2018-12-09 19:32:40,783 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 91 114) no Hoare annotation was computed. [2018-12-09 19:32:40,783 INFO L444 ceAbstractionStarter]: At program point L102(lines 102 108) the Hoare annotation is: (let ((.cse7 (= 1 ~waterLevel~0)) (.cse8 (not (= |old(~waterLevel~0)| 1))) (.cse10 (= |old(~waterLevel~0)| 2)) (.cse4 (not (= ~waterLevel~0 2))) (.cse9 (not (= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~pumpRunning~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse5 (= 0 ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5)) (or .cse6 .cse0 .cse7 .cse2 .cse8) (or .cse6 .cse1 .cse9 .cse2) (or .cse7 .cse0 .cse2 .cse8 .cse3) (or .cse6 .cse10 .cse0 .cse4 .cse2) (or .cse10 .cse0 .cse4 .cse2 .cse3) (or .cse9 .cse1 .cse2 .cse3) (or .cse6 .cse0 .cse1 .cse2 .cse5))) [2018-12-09 19:32:40,784 INFO L444 ceAbstractionStarter]: At program point L351(line 351) the Hoare annotation is: (let ((.cse0 (not (= 1 ~pumpRunning~0))) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse3 .cse4 .cse1) (or (= ~waterLevel~0 2) .cse4 .cse1 .cse2))) [2018-12-09 19:32:40,784 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification3_spec__1EXIT(lines 328 360) no Hoare annotation was computed. [2018-12-09 19:32:40,784 INFO L448 ceAbstractionStarter]: For program point L347(lines 347 353) no Hoare annotation was computed. [2018-12-09 19:32:40,784 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification3_spec__1ENTRY(lines 328 360) the Hoare annotation is: true [2018-12-09 19:32:40,784 INFO L444 ceAbstractionStarter]: At program point L345(line 345) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse3 (not (= 0 ~pumpRunning~0))) (.cse4 (= ~waterLevel~0 2)) (.cse1 (not (= 1 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1))) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2) (or .cse4 .cse3 .cse2 .cse5) (or .cse4 .cse1 .cse2 .cse5))) [2018-12-09 19:32:40,784 INFO L448 ceAbstractionStarter]: For program point L345-1(line 345) no Hoare annotation was computed. [2018-12-09 19:32:40,784 INFO L448 ceAbstractionStarter]: For program point L343(lines 343 356) no Hoare annotation was computed. [2018-12-09 19:32:40,784 INFO L448 ceAbstractionStarter]: For program point L343-1(lines 328 360) no Hoare annotation was computed. [2018-12-09 19:32:40,784 INFO L444 ceAbstractionStarter]: At program point L341(line 341) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 ~pumpRunning~0)) .cse1) (or .cse0 (not (= 0 ~pumpRunning~0)) .cse1))) [2018-12-09 19:32:40,784 INFO L448 ceAbstractionStarter]: For program point L341-1(line 341) no Hoare annotation was computed. [2018-12-09 19:32:40,784 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 357) no Hoare annotation was computed. [2018-12-09 19:32:40,784 INFO L451 ceAbstractionStarter]: At program point L335(line 335) the Hoare annotation is: true [2018-12-09 19:32:40,784 INFO L448 ceAbstractionStarter]: For program point L335-1(line 335) no Hoare annotation was computed. [2018-12-09 19:32:40,784 INFO L448 ceAbstractionStarter]: For program point L368-1(lines 364 375) no Hoare annotation was computed. [2018-12-09 19:32:40,784 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 364 375) the Hoare annotation is: (let ((.cse0 (= 1 ~waterLevel~0)) (.cse1 (not (= 1 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= |old(~waterLevel~0)| 1)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 1)) .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 19:32:40,784 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 364 375) no Hoare annotation was computed. [2018-12-09 19:32:40,784 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 511 517) no Hoare annotation was computed. [2018-12-09 19:32:40,784 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 511 517) the Hoare annotation is: true [2018-12-09 19:32:40,784 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:32:40,785 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1)) [2018-12-09 19:32:40,785 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:32:40,785 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:32:40,785 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 376 387) no Hoare annotation was computed. [2018-12-09 19:32:40,785 INFO L448 ceAbstractionStarter]: For program point L380-1(lines 376 387) no Hoare annotation was computed. [2018-12-09 19:32:40,785 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 376 387) the Hoare annotation is: (let ((.cse5 (not (= 1 ~pumpRunning~0))) (.cse7 (= |old(~waterLevel~0)| 2)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse8 (not (= ~waterLevel~0 2))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (= 1 ~waterLevel~0)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= |old(~waterLevel~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 .cse2 .cse3 .cse4) (or .cse6 .cse7 .cse5 .cse2 .cse8) (or .cse6 .cse1 .cse5 .cse2 .cse3) (or .cse8 .cse7 .cse5 .cse2 .cse4) (or .cse6 .cse7 .cse0 .cse2 .cse8) (or .cse7 .cse0 .cse2 .cse4 .cse8) (or .cse6 .cse0 .cse1 .cse2 .cse3))) [2018-12-09 19:32:40,785 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 918 925) no Hoare annotation was computed. [2018-12-09 19:32:40,785 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 918 925) the Hoare annotation is: true [2018-12-09 19:32:40,785 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 922) no Hoare annotation was computed. [2018-12-09 19:32:40,785 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 918 925) no Hoare annotation was computed. [2018-12-09 19:32:40,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:32:40 BoogieIcfgContainer [2018-12-09 19:32:40,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:32:40,792 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:32:40,792 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:32:40,792 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:32:40,793 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:32:35" (3/4) ... [2018-12-09 19:32:40,795 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 19:32:40,798 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-09 19:32:40,798 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__highWaterSensor [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification3_spec__1 [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-09 19:32:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-09 19:32:40,800 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-09 19:32:40,800 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-09 19:32:40,804 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 45 nodes and edges [2018-12-09 19:32:40,804 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-12-09 19:32:40,804 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-09 19:32:40,804 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-09 19:32:40,804 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 19:32:40,804 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 19:32:40,821 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(waterLevel == 2) && 0 == methaneLevelCritical) && 0 == pumpRunning) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || ((0 == methaneLevelCritical && pumpRunning == 1) && splverifierCounter == 0)) || ((0 == pumpRunning && methaneLevelCritical == 1) && splverifierCounter == 0)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || ((pumpRunning == 1 && methaneLevelCritical == 1) && splverifierCounter == 0) [2018-12-09 19:32:40,821 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-09 19:32:40,847 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c317675e-9456-4431-a4c3-d83c7fac8a38/bin-2019/utaipan/witness.graphml [2018-12-09 19:32:40,848 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:32:40,848 INFO L168 Benchmark]: Toolchain (without parser) took 5760.77 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 233.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -196.6 MB). Peak memory consumption was 36.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:32:40,849 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:32:40,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -170.3 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-12-09 19:32:40,849 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.48 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. [2018-12-09 19:32:40,849 INFO L168 Benchmark]: Boogie Preprocessor took 22.63 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. [2018-12-09 19:32:40,850 INFO L168 Benchmark]: RCFGBuilder took 345.97 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: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. [2018-12-09 19:32:40,850 INFO L168 Benchmark]: TraceAbstraction took 5023.84 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 108.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -84.8 MB). Peak memory consumption was 349.9 MB. Max. memory is 11.5 GB. [2018-12-09 19:32:40,850 INFO L168 Benchmark]: Witness Printer took 55.40 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2018-12-09 19:32:40,852 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 289.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -170.3 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.63 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 345.97 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: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5023.84 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 108.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -84.8 MB). Peak memory consumption was 349.9 MB. Max. memory is 11.5 GB. * Witness Printer took 55.40 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 922]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 271]: Loop Invariant Derived loop invariant: (((((((((!(waterLevel == 2) && 0 == methaneLevelCritical) && 0 == pumpRunning) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || ((0 == methaneLevelCritical && pumpRunning == 1) && splverifierCounter == 0)) || ((0 == pumpRunning && methaneLevelCritical == 1) && splverifierCounter == 0)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || ((pumpRunning == 1 && methaneLevelCritical == 1) && splverifierCounter == 0) - InvariantResult [Line: 467]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 457]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 270]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 26 procedures, 136 locations, 1 error locations. SAFE Result, 4.9s OverallTime, 12 OverallIterations, 2 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 1.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 1778 SDtfs, 726 SDslu, 6625 SDs, 0 SdLazy, 1055 SolverSat, 141 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 307 GetRequests, 217 SyntacticMatches, 6 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=866occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 65 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 56 LocationsWithAnnotation, 1652 PreInvPairs, 1756 NumberOfFragments, 1994 HoareAnnotationTreeSize, 1652 FomulaSimplifications, 1183 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 56 FomulaSimplificationsInter, 7802 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1022 NumberOfCodeBlocks, 1022 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1103 ConstructedInterpolants, 0 QuantifiedInterpolants, 156899 SizeOfPredicates, 6 NumberOfNonLiveVariables, 726 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 11/15 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...