./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product33_false-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_9c97e2ca-4ece-49a6-9334-6834fad8fccb/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9c97e2ca-4ece-49a6-9334-6834fad8fccb/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9c97e2ca-4ece-49a6-9334-6834fad8fccb/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9c97e2ca-4ece-49a6-9334-6834fad8fccb/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product33_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9c97e2ca-4ece-49a6-9334-6834fad8fccb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9c97e2ca-4ece-49a6-9334-6834fad8fccb/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 3e754f75ca06d39e1069a0bad88498ddd2436bb7 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 16:43:30,519 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 16:43:30,520 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 16:43:30,526 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 16:43:30,526 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 16:43:30,526 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 16:43:30,527 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 16:43:30,528 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 16:43:30,528 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 16:43:30,529 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 16:43:30,529 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 16:43:30,529 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 16:43:30,530 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 16:43:30,530 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 16:43:30,531 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 16:43:30,531 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 16:43:30,532 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 16:43:30,532 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 16:43:30,533 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 16:43:30,534 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 16:43:30,534 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 16:43:30,535 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 16:43:30,536 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 16:43:30,536 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 16:43:30,536 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 16:43:30,537 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 16:43:30,537 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 16:43:30,537 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 16:43:30,538 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 16:43:30,538 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 16:43:30,538 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 16:43:30,539 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 16:43:30,539 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 16:43:30,539 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 16:43:30,539 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 16:43:30,540 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 16:43:30,540 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9c97e2ca-4ece-49a6-9334-6834fad8fccb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 16:43:30,547 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 16:43:30,547 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 16:43:30,547 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 16:43:30,548 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 16:43:30,548 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 16:43:30,548 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 16:43:30,548 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 16:43:30,548 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 16:43:30,548 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 16:43:30,548 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 16:43:30,548 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 16:43:30,548 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 16:43:30,548 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 16:43:30,549 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 16:43:30,549 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 16:43:30,549 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 16:43:30,549 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 16:43:30,549 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 16:43:30,549 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 16:43:30,549 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 16:43:30,549 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 16:43:30,549 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 16:43:30,549 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 16:43:30,549 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 16:43:30,549 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 16:43:30,550 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 16:43:30,550 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 16:43:30,550 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 16:43:30,550 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 16:43:30,550 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 16:43:30,550 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 16:43:30,550 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 16:43:30,550 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 16:43:30,550 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 16:43:30,550 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 16:43:30,550 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 16:43:30,550 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_9c97e2ca-4ece-49a6-9334-6834fad8fccb/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 -> 3e754f75ca06d39e1069a0bad88498ddd2436bb7 [2018-12-08 16:43:30,568 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 16:43:30,577 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 16:43:30,580 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 16:43:30,581 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 16:43:30,581 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 16:43:30,582 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9c97e2ca-4ece-49a6-9334-6834fad8fccb/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product33_false-unreach-call_false-termination.cil.c [2018-12-08 16:43:30,622 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9c97e2ca-4ece-49a6-9334-6834fad8fccb/bin-2019/utaipan/data/a1ba6ea3e/98bc15226c37459ca4e3d2a0c6d91ef9/FLAGbd1ebad17 [2018-12-08 16:43:31,048 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 16:43:31,048 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9c97e2ca-4ece-49a6-9334-6834fad8fccb/sv-benchmarks/c/product-lines/minepump_spec1_product33_false-unreach-call_false-termination.cil.c [2018-12-08 16:43:31,056 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9c97e2ca-4ece-49a6-9334-6834fad8fccb/bin-2019/utaipan/data/a1ba6ea3e/98bc15226c37459ca4e3d2a0c6d91ef9/FLAGbd1ebad17 [2018-12-08 16:43:31,066 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9c97e2ca-4ece-49a6-9334-6834fad8fccb/bin-2019/utaipan/data/a1ba6ea3e/98bc15226c37459ca4e3d2a0c6d91ef9 [2018-12-08 16:43:31,067 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 16:43:31,068 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 16:43:31,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 16:43:31,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 16:43:31,072 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 16:43:31,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 04:43:31" (1/1) ... [2018-12-08 16:43:31,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c8a763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:43:31, skipping insertion in model container [2018-12-08 16:43:31,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 04:43:31" (1/1) ... [2018-12-08 16:43:31,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 16:43:31,101 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 16:43:31,246 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 16:43:31,254 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 16:43:31,348 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 16:43:31,364 INFO L195 MainTranslator]: Completed translation [2018-12-08 16:43:31,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:43:31 WrapperNode [2018-12-08 16:43:31,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 16:43:31,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 16:43:31,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 16:43:31,365 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 16:43:31,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:43:31" (1/1) ... [2018-12-08 16:43:31,382 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:43:31" (1/1) ... [2018-12-08 16:43:31,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 16:43:31,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 16:43:31,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 16:43:31,390 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 16:43:31,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:43:31" (1/1) ... [2018-12-08 16:43:31,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:43:31" (1/1) ... [2018-12-08 16:43:31,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:43:31" (1/1) ... [2018-12-08 16:43:31,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:43:31" (1/1) ... [2018-12-08 16:43:31,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:43:31" (1/1) ... [2018-12-08 16:43:31,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:43:31" (1/1) ... [2018-12-08 16:43:31,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:43:31" (1/1) ... [2018-12-08 16:43:31,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 16:43:31,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 16:43:31,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 16:43:31,413 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 16:43:31,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:43:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9c97e2ca-4ece-49a6-9334-6834fad8fccb/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 [2018-12-08 16:43:31,446 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-08 16:43:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-08 16:43:31,446 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 16:43:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 16:43:31,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 16:43:31,446 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-08 16:43:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-08 16:43:31,446 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-08 16:43:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-08 16:43:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-08 16:43:31,447 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-08 16:43:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-08 16:43:31,447 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-08 16:43:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-08 16:43:31,447 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-08 16:43:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-08 16:43:31,447 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-08 16:43:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-08 16:43:31,447 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-08 16:43:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-08 16:43:31,447 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-08 16:43:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-08 16:43:31,447 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-08 16:43:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-08 16:43:31,448 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-08 16:43:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-08 16:43:31,448 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-08 16:43:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-08 16:43:31,448 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-08 16:43:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-08 16:43:31,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-08 16:43:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-08 16:43:31,448 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-08 16:43:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-08 16:43:31,448 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-08 16:43:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-08 16:43:31,449 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-08 16:43:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-08 16:43:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 16:43:31,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 16:43:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-08 16:43:31,449 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-08 16:43:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-08 16:43:31,449 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-08 16:43:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 16:43:31,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 16:43:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-08 16:43:31,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-08 16:43:31,699 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 16:43:31,699 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-08 16:43:31,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:43:31 BoogieIcfgContainer [2018-12-08 16:43:31,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 16:43:31,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 16:43:31,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 16:43:31,702 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 16:43:31,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 04:43:31" (1/3) ... [2018-12-08 16:43:31,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61adc49a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 04:43:31, skipping insertion in model container [2018-12-08 16:43:31,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:43:31" (2/3) ... [2018-12-08 16:43:31,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61adc49a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 04:43:31, skipping insertion in model container [2018-12-08 16:43:31,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:43:31" (3/3) ... [2018-12-08 16:43:31,704 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product33_false-unreach-call_false-termination.cil.c [2018-12-08 16:43:31,710 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 16:43:31,715 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 16:43:31,724 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 16:43:31,741 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 16:43:31,742 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 16:43:31,742 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 16:43:31,742 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 16:43:31,742 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 16:43:31,742 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 16:43:31,742 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 16:43:31,742 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 16:43:31,753 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2018-12-08 16:43:31,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-08 16:43:31,757 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 16:43:31,758 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 16:43:31,759 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 16:43:31,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:43:31,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1800961030, now seen corresponding path program 1 times [2018-12-08 16:43:31,763 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 16:43:31,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:43:31,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 16:43:31,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:43:31,791 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 16:43:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:43:31,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:43:31,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 16:43:31,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 16:43:31,897 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 16:43:31,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 16:43:31,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 16:43:31,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 16:43:31,909 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 2 states. [2018-12-08 16:43:31,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 16:43:31,928 INFO L93 Difference]: Finished difference Result 210 states and 263 transitions. [2018-12-08 16:43:31,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 16:43:31,929 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-08 16:43:31,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 16:43:31,936 INFO L225 Difference]: With dead ends: 210 [2018-12-08 16:43:31,936 INFO L226 Difference]: Without dead ends: 105 [2018-12-08 16:43:31,938 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 [2018-12-08 16:43:31,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-12-08 16:43:31,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2018-12-08 16:43:31,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-12-08 16:43:31,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2018-12-08 16:43:31,966 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 123 transitions. Word has length 46 [2018-12-08 16:43:31,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 16:43:31,966 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 123 transitions. [2018-12-08 16:43:31,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 16:43:31,966 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 123 transitions. [2018-12-08 16:43:31,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-08 16:43:31,968 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 16:43:31,968 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 16:43:31,968 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 16:43:31,968 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:43:31,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1774447568, now seen corresponding path program 1 times [2018-12-08 16:43:31,968 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 16:43:31,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:43:31,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 16:43:31,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:43:31,969 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 16:43:31,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:43:32,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:43:32,020 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 16:43:32,020 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 16:43:32,020 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 16:43:32,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 16:43:32,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 16:43:32,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 16:43:32,022 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. Second operand 3 states. [2018-12-08 16:43:32,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 16:43:32,032 INFO L93 Difference]: Finished difference Result 159 states and 185 transitions. [2018-12-08 16:43:32,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 16:43:32,032 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-08 16:43:32,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 16:43:32,033 INFO L225 Difference]: With dead ends: 159 [2018-12-08 16:43:32,033 INFO L226 Difference]: Without dead ends: 96 [2018-12-08 16:43:32,034 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 [2018-12-08 16:43:32,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-12-08 16:43:32,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-12-08 16:43:32,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-12-08 16:43:32,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2018-12-08 16:43:32,041 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 47 [2018-12-08 16:43:32,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 16:43:32,041 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2018-12-08 16:43:32,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 16:43:32,041 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2018-12-08 16:43:32,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-08 16:43:32,042 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 16:43:32,042 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] [2018-12-08 16:43:32,042 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 16:43:32,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:43:32,042 INFO L82 PathProgramCache]: Analyzing trace with hash 2067009935, now seen corresponding path program 1 times [2018-12-08 16:43:32,042 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 16:43:32,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:43:32,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 16:43:32,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:43:32,043 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 16:43:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:43:32,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:43:32,109 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 16:43:32,110 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 16:43:32,110 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 16:43:32,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 16:43:32,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 16:43:32,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-08 16:43:32,110 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 7 states. [2018-12-08 16:43:32,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 16:43:32,238 INFO L93 Difference]: Finished difference Result 168 states and 199 transitions. [2018-12-08 16:43:32,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 16:43:32,238 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-08 16:43:32,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 16:43:32,240 INFO L225 Difference]: With dead ends: 168 [2018-12-08 16:43:32,240 INFO L226 Difference]: Without dead ends: 96 [2018-12-08 16:43:32,240 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 [2018-12-08 16:43:32,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-12-08 16:43:32,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-12-08 16:43:32,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-12-08 16:43:32,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2018-12-08 16:43:32,250 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 51 [2018-12-08 16:43:32,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 16:43:32,250 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2018-12-08 16:43:32,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 16:43:32,251 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2018-12-08 16:43:32,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-12-08 16:43:32,252 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 16:43:32,252 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] [2018-12-08 16:43:32,252 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 16:43:32,253 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:43:32,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1760111872, now seen corresponding path program 1 times [2018-12-08 16:43:32,253 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 16:43:32,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:43:32,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 16:43:32,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:43:32,254 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 16:43:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:43:32,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:43:32,335 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 16:43:32,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 16:43:32,335 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 16:43:32,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 16:43:32,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 16:43:32,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 16:43:32,336 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 5 states. [2018-12-08 16:43:32,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 16:43:32,596 INFO L93 Difference]: Finished difference Result 251 states and 303 transitions. [2018-12-08 16:43:32,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 16:43:32,596 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2018-12-08 16:43:32,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 16:43:32,598 INFO L225 Difference]: With dead ends: 251 [2018-12-08 16:43:32,598 INFO L226 Difference]: Without dead ends: 179 [2018-12-08 16:43:32,599 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 [2018-12-08 16:43:32,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-12-08 16:43:32,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 161. [2018-12-08 16:43:32,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-12-08 16:43:32,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 185 transitions. [2018-12-08 16:43:32,617 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 185 transitions. Word has length 59 [2018-12-08 16:43:32,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 16:43:32,618 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 185 transitions. [2018-12-08 16:43:32,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 16:43:32,618 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 185 transitions. [2018-12-08 16:43:32,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-12-08 16:43:32,620 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 16:43:32,620 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] [2018-12-08 16:43:32,620 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 16:43:32,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:43:32,620 INFO L82 PathProgramCache]: Analyzing trace with hash 540343609, now seen corresponding path program 1 times [2018-12-08 16:43:32,620 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 16:43:32,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:43:32,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 16:43:32,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:43:32,622 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 16:43:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:43:32,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:43:32,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 16:43:32,696 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 16:43:32,696 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 16:43:32,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 16:43:32,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 16:43:32,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 16:43:32,697 INFO L87 Difference]: Start difference. First operand 161 states and 185 transitions. Second operand 6 states. [2018-12-08 16:43:32,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 16:43:32,813 INFO L93 Difference]: Finished difference Result 420 states and 502 transitions. [2018-12-08 16:43:32,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 16:43:32,813 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 73 [2018-12-08 16:43:32,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 16:43:32,816 INFO L225 Difference]: With dead ends: 420 [2018-12-08 16:43:32,816 INFO L226 Difference]: Without dead ends: 283 [2018-12-08 16:43:32,817 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-08 16:43:32,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2018-12-08 16:43:32,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 277. [2018-12-08 16:43:32,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2018-12-08 16:43:32,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 320 transitions. [2018-12-08 16:43:32,839 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 320 transitions. Word has length 73 [2018-12-08 16:43:32,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 16:43:32,840 INFO L480 AbstractCegarLoop]: Abstraction has 277 states and 320 transitions. [2018-12-08 16:43:32,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 16:43:32,840 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 320 transitions. [2018-12-08 16:43:32,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-12-08 16:43:32,841 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 16:43:32,841 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] [2018-12-08 16:43:32,842 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 16:43:32,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:43:32,842 INFO L82 PathProgramCache]: Analyzing trace with hash -700448675, now seen corresponding path program 1 times [2018-12-08 16:43:32,842 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 16:43:32,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:43:32,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 16:43:32,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:43:32,843 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 16:43:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:43:32,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:43:32,903 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 16:43:32,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 16:43:32,903 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 16:43:32,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 16:43:32,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 16:43:32,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 16:43:32,904 INFO L87 Difference]: Start difference. First operand 277 states and 320 transitions. Second operand 7 states. [2018-12-08 16:43:33,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 16:43:33,142 INFO L93 Difference]: Finished difference Result 310 states and 369 transitions. [2018-12-08 16:43:33,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 16:43:33,142 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2018-12-08 16:43:33,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 16:43:33,144 INFO L225 Difference]: With dead ends: 310 [2018-12-08 16:43:33,144 INFO L226 Difference]: Without dead ends: 307 [2018-12-08 16:43:33,145 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-08 16:43:33,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2018-12-08 16:43:33,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 277. [2018-12-08 16:43:33,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2018-12-08 16:43:33,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 319 transitions. [2018-12-08 16:43:33,164 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 319 transitions. Word has length 77 [2018-12-08 16:43:33,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 16:43:33,165 INFO L480 AbstractCegarLoop]: Abstraction has 277 states and 319 transitions. [2018-12-08 16:43:33,165 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 16:43:33,165 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 319 transitions. [2018-12-08 16:43:33,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-08 16:43:33,166 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 16:43:33,166 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] [2018-12-08 16:43:33,166 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 16:43:33,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:43:33,166 INFO L82 PathProgramCache]: Analyzing trace with hash -723373757, now seen corresponding path program 1 times [2018-12-08 16:43:33,167 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 16:43:33,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:43:33,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 16:43:33,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:43:33,167 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 16:43:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:43:33,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:43:33,247 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 16:43:33,247 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 16:43:33,247 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 16:43:33,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 16:43:33,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 16:43:33,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 16:43:33,248 INFO L87 Difference]: Start difference. First operand 277 states and 319 transitions. Second operand 6 states. [2018-12-08 16:43:33,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 16:43:33,280 INFO L93 Difference]: Finished difference Result 540 states and 632 transitions. [2018-12-08 16:43:33,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 16:43:33,280 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2018-12-08 16:43:33,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 16:43:33,281 INFO L225 Difference]: With dead ends: 540 [2018-12-08 16:43:33,282 INFO L226 Difference]: Without dead ends: 287 [2018-12-08 16:43:33,282 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-08 16:43:33,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2018-12-08 16:43:33,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2018-12-08 16:43:33,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2018-12-08 16:43:33,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 329 transitions. [2018-12-08 16:43:33,292 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 329 transitions. Word has length 78 [2018-12-08 16:43:33,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 16:43:33,293 INFO L480 AbstractCegarLoop]: Abstraction has 287 states and 329 transitions. [2018-12-08 16:43:33,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 16:43:33,293 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 329 transitions. [2018-12-08 16:43:33,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-08 16:43:33,294 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 16:43:33,294 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] [2018-12-08 16:43:33,294 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 16:43:33,294 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:43:33,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1232846847, now seen corresponding path program 1 times [2018-12-08 16:43:33,294 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 16:43:33,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:43:33,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 16:43:33,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:43:33,295 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 16:43:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:43:33,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:43:33,345 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 16:43:33,345 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-08 16:43:33,345 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 16:43:33,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 16:43:33,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 16:43:33,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-08 16:43:33,346 INFO L87 Difference]: Start difference. First operand 287 states and 329 transitions. Second operand 8 states. [2018-12-08 16:43:33,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 16:43:33,370 INFO L93 Difference]: Finished difference Result 564 states and 664 transitions. [2018-12-08 16:43:33,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 16:43:33,371 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2018-12-08 16:43:33,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 16:43:33,372 INFO L225 Difference]: With dead ends: 564 [2018-12-08 16:43:33,372 INFO L226 Difference]: Without dead ends: 301 [2018-12-08 16:43:33,373 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 [2018-12-08 16:43:33,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2018-12-08 16:43:33,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 295. [2018-12-08 16:43:33,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2018-12-08 16:43:33,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 337 transitions. [2018-12-08 16:43:33,384 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 337 transitions. Word has length 78 [2018-12-08 16:43:33,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 16:43:33,385 INFO L480 AbstractCegarLoop]: Abstraction has 295 states and 337 transitions. [2018-12-08 16:43:33,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 16:43:33,385 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 337 transitions. [2018-12-08 16:43:33,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-08 16:43:33,386 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 16:43:33,386 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] [2018-12-08 16:43:33,386 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 16:43:33,386 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:43:33,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1052016608, now seen corresponding path program 1 times [2018-12-08 16:43:33,386 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 16:43:33,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:43:33,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 16:43:33,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:43:33,387 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 16:43:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:43:33,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:43:33,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 16:43:33,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 16:43:33,431 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 16:43:33,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 16:43:33,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 16:43:33,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 16:43:33,432 INFO L87 Difference]: Start difference. First operand 295 states and 337 transitions. Second operand 4 states. [2018-12-08 16:43:33,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 16:43:33,529 INFO L93 Difference]: Finished difference Result 887 states and 1072 transitions. [2018-12-08 16:43:33,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 16:43:33,530 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2018-12-08 16:43:33,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 16:43:33,532 INFO L225 Difference]: With dead ends: 887 [2018-12-08 16:43:33,533 INFO L226 Difference]: Without dead ends: 616 [2018-12-08 16:43:33,534 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 16:43:33,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2018-12-08 16:43:33,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 409. [2018-12-08 16:43:33,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2018-12-08 16:43:33,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 464 transitions. [2018-12-08 16:43:33,562 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 464 transitions. Word has length 78 [2018-12-08 16:43:33,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 16:43:33,562 INFO L480 AbstractCegarLoop]: Abstraction has 409 states and 464 transitions. [2018-12-08 16:43:33,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 16:43:33,562 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 464 transitions. [2018-12-08 16:43:33,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-12-08 16:43:33,564 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 16:43:33,564 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] [2018-12-08 16:43:33,564 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 16:43:33,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:43:33,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1818491974, now seen corresponding path program 1 times [2018-12-08 16:43:33,564 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 16:43:33,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:43:33,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 16:43:33,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:43:33,565 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 16:43:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 16:43:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 16:43:33,661 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 16:43:33,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 04:43:33 BoogieIcfgContainer [2018-12-08 16:43:33,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 16:43:33,739 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 16:43:33,740 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 16:43:33,740 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 16:43:33,740 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:43:31" (3/4) ... [2018-12-08 16:43:33,742 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 16:43:33,808 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9c97e2ca-4ece-49a6-9334-6834fad8fccb/bin-2019/utaipan/witness.graphml [2018-12-08 16:43:33,808 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 16:43:33,809 INFO L168 Benchmark]: Toolchain (without parser) took 2741.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -155.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 11.5 GB. [2018-12-08 16:43:33,810 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:43:33,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-12-08 16:43:33,810 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 16:43:33,810 INFO L168 Benchmark]: Boogie Preprocessor took 22.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 16:43:33,811 INFO L168 Benchmark]: RCFGBuilder took 287.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 11.5 GB. [2018-12-08 16:43:33,811 INFO L168 Benchmark]: TraceAbstraction took 2039.08 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 51.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -84.9 MB). Peak memory consumption was 217.1 MB. Max. memory is 11.5 GB. [2018-12-08 16:43:33,811 INFO L168 Benchmark]: Witness Printer took 68.82 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: 29.7 MB). Peak memory consumption was 29.7 MB. Max. memory is 11.5 GB. [2018-12-08 16:43:33,813 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 295.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 287.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2039.08 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 51.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -84.9 MB). Peak memory consumption was 217.1 MB. Max. memory is 11.5 GB. * Witness Printer took 68.82 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: 29.7 MB). Peak memory consumption was 29.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 410]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L424] int pumpRunning = 0; [L425] int systemActive = 1; [L683] int cleanupTimeShifts = 4; [L806] int waterLevel = 1; [L807] int methaneLevelCritical = 0; [L756] int retValue_acc ; [L757] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L761] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L762] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L763] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L674] int retValue_acc ; [L677] retValue_acc = 1 [L678] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L763] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L763] tmp = valid_product() [L765] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L767] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L768] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L750] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L581] int splverifierCounter ; [L582] int tmp ; [L583] int tmp___0 ; [L584] int tmp___1 ; [L585] int tmp___2 ; [L588] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L590] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L592] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L598] tmp = __VERIFIER_nondet_int() [L600] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L602] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L824] COND TRUE waterLevel < 2 [L825] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L602] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L608] tmp___0 = __VERIFIER_nondet_int() [L610] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L612] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L836] COND FALSE !(\read(methaneLevelCritical)) [L839] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L612] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L618] tmp___2 = __VERIFIER_nondet_int() [L620] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L633] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L432] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L439] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L441] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L461] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L464] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L466] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L558] int retValue_acc ; [L559] int tmp ; [L560] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L564] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L886] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L889] COND FALSE !(waterLevel < 2) [L893] retValue_acc = 0 [L894] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L564] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L564] tmp = isHighWaterSensorDry() [L566] COND FALSE !(\read(tmp)) [L569] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L571] retValue_acc = tmp___0 [L572] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L466] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L466] tmp = isHighWaterLevel() [L468] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L470] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L489] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L470] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L441] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L447] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L780] int tmp ; [L781] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L785] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L845] int retValue_acc ; [L848] retValue_acc = methaneLevelCritical [L849] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L785] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L785] tmp = isMethaneLevelCritical() [L787] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L789] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L513] int retValue_acc ; [L516] retValue_acc = pumpRunning [L517] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L789] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L789] tmp___0 = isPumpRunning() [L791] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L793] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L410] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 23 procedures, 118 locations, 1 error locations. UNSAFE Result, 2.0s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1083 SDtfs, 677 SDslu, 2224 SDs, 0 SdLazy, 788 SolverSat, 211 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=409occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 267 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 669 NumberOfCodeBlocks, 669 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 578 ConstructedInterpolants, 0 QuantifiedInterpolants, 66014 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...