./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product43_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_349ea563-4833-496f-b42d-c15e88e53ed5/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_349ea563-4833-496f-b42d-c15e88e53ed5/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_349ea563-4833-496f-b42d-c15e88e53ed5/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_349ea563-4833-496f-b42d-c15e88e53ed5/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product43_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_349ea563-4833-496f-b42d-c15e88e53ed5/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_349ea563-4833-496f-b42d-c15e88e53ed5/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 77b70849cb3dcecd37b0edacca9651109dbc42ac ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:56:37,393 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:56:37,394 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:56:37,403 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:56:37,403 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:56:37,404 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:56:37,405 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:56:37,406 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:56:37,407 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:56:37,408 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:56:37,409 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:56:37,409 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:56:37,410 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:56:37,410 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:56:37,411 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:56:37,412 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:56:37,412 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:56:37,414 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:56:37,415 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:56:37,416 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:56:37,417 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:56:37,418 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:56:37,420 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:56:37,420 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:56:37,420 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:56:37,421 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:56:37,422 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:56:37,423 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:56:37,423 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:56:37,424 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:56:37,424 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:56:37,425 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:56:37,425 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:56:37,425 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:56:37,427 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:56:37,428 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:56:37,428 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_349ea563-4833-496f-b42d-c15e88e53ed5/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 10:56:37,439 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:56:37,439 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:56:37,440 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:56:37,440 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:56:37,441 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:56:37,441 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 10:56:37,441 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 10:56:37,441 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 10:56:37,441 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 10:56:37,441 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 10:56:37,441 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 10:56:37,441 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:56:37,442 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:56:37,443 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 10:56:37,443 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:56:37,443 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:56:37,443 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:56:37,443 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 10:56:37,443 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 10:56:37,443 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 10:56:37,443 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:56:37,444 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:56:37,444 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 10:56:37,444 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:56:37,444 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 10:56:37,444 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:56:37,444 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:56:37,444 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 10:56:37,445 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:56:37,445 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 10:56:37,445 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 10:56:37,445 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 10:56:37,447 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_349ea563-4833-496f-b42d-c15e88e53ed5/bin-2019/uautomizer 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(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> 77b70849cb3dcecd37b0edacca9651109dbc42ac [2018-11-18 10:56:37,472 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:56:37,481 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:56:37,484 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:56:37,485 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:56:37,486 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:56:37,486 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_349ea563-4833-496f-b42d-c15e88e53ed5/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product43_true-unreach-call_false-termination.cil.c [2018-11-18 10:56:37,535 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_349ea563-4833-496f-b42d-c15e88e53ed5/bin-2019/uautomizer/data/f48e4e824/77f8543ff80642b89d144136f88658d1/FLAGee3d0b107 [2018-11-18 10:56:37,916 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:56:37,917 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_349ea563-4833-496f-b42d-c15e88e53ed5/sv-benchmarks/c/product-lines/minepump_spec5_product43_true-unreach-call_false-termination.cil.c [2018-11-18 10:56:37,927 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_349ea563-4833-496f-b42d-c15e88e53ed5/bin-2019/uautomizer/data/f48e4e824/77f8543ff80642b89d144136f88658d1/FLAGee3d0b107 [2018-11-18 10:56:38,307 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_349ea563-4833-496f-b42d-c15e88e53ed5/bin-2019/uautomizer/data/f48e4e824/77f8543ff80642b89d144136f88658d1 [2018-11-18 10:56:38,309 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:56:38,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:56:38,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:56:38,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:56:38,315 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:56:38,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:56:38" (1/1) ... [2018-11-18 10:56:38,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f87d5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:38, skipping insertion in model container [2018-11-18 10:56:38,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:56:38" (1/1) ... [2018-11-18 10:56:38,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:56:38,364 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:56:38,578 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:56:38,587 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:56:38,699 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:56:38,718 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:56:38,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:38 WrapperNode [2018-11-18 10:56:38,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:56:38,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:56:38,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:56:38,720 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:56:38,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:38" (1/1) ... [2018-11-18 10:56:38,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:38" (1/1) ... [2018-11-18 10:56:38,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:56:38,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:56:38,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:56:38,766 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:56:38,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:38" (1/1) ... [2018-11-18 10:56:38,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:38" (1/1) ... [2018-11-18 10:56:38,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:38" (1/1) ... [2018-11-18 10:56:38,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:38" (1/1) ... [2018-11-18 10:56:38,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:38" (1/1) ... [2018-11-18 10:56:38,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:38" (1/1) ... [2018-11-18 10:56:38,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:38" (1/1) ... [2018-11-18 10:56:38,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:56:38,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:56:38,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:56:38,791 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:56:38,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_349ea563-4833-496f-b42d-c15e88e53ed5/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:56:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:56:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:56:38,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:56:39,293 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:56:39,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:56:39 BoogieIcfgContainer [2018-11-18 10:56:39,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:56:39,294 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 10:56:39,294 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 10:56:39,296 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 10:56:39,297 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 10:56:39,297 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 10:56:38" (1/3) ... [2018-11-18 10:56:39,297 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@336539d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 10:56:39, skipping insertion in model container [2018-11-18 10:56:39,298 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 10:56:39,299 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:56:38" (2/3) ... [2018-11-18 10:56:39,299 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@336539d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 10:56:39, skipping insertion in model container [2018-11-18 10:56:39,299 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 10:56:39,299 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:56:39" (3/3) ... [2018-11-18 10:56:39,300 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product43_true-unreach-call_false-termination.cil.c [2018-11-18 10:56:39,334 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:56:39,335 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 10:56:39,335 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 10:56:39,335 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 10:56:39,335 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:56:39,335 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:56:39,335 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 10:56:39,335 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:56:39,335 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 10:56:39,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 133 states. [2018-11-18 10:56:39,372 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 86 [2018-11-18 10:56:39,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:56:39,372 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:56:39,378 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:56:39,378 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:56:39,378 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 10:56:39,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 133 states. [2018-11-18 10:56:39,382 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 86 [2018-11-18 10:56:39,382 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:56:39,383 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:56:39,383 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:56:39,383 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:56:39,387 INFO L794 eck$LassoCheckResult]: Stem: 83#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(13);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 110];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 44];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 80];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 117];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 109];#memory_int := #memory_int[#t~string50.base,4 + #t~string50.offset := 112];#memory_int := #memory_int[#t~string50.base,5 + #t~string50.offset := 58];#memory_int := #memory_int[#t~string50.base,6 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 110];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,3 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 41];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 32];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 10];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(13);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 44];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 77];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 101];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 116];#memory_int := #memory_int[#t~string63.base,4 + #t~string63.offset := 104];#memory_int := #memory_int[#t~string63.base,5 + #t~string63.offset := 58];#memory_int := #memory_int[#t~string63.base,6 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 67];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 82];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 73];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 84];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 75];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 41];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;assume { :begin_inline_select_helpers } true; 90#L944true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 16#L937true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 94#L952true main_#t~ret35 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 87#L498true assume 0 != main_~tmp~3;assume { :begin_inline_setup } true; 25#L469true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 36#L879true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 61#L523-3true [2018-11-18 10:56:39,387 INFO L796 eck$LassoCheckResult]: Loop: 61#L523-3true assume true; 78#L523-1true assume !false; 22#L524true assume test_~splverifierCounter~0 < 4; 120#L525true test_~tmp~4 := test_#t~nondet36;havoc test_#t~nondet36; 7#L533true assume !(0 != test_~tmp~4); 126#L533-2true test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 45#L543true assume !(0 != test_~tmp___0~0); 31#L543-2true test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 81#L553true assume 0 != test_~tmp___2~0; 52#L559-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret70;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 59#L702true __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 70#L889true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 4#L599true assume !(0 != ~pumpRunning~0); 8#L599-2true assume !(0 != ~systemActive~0); 46#L606-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 100#L853true __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 69#L900true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 71#L900-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 108#L616true assume { :end_inline_timeShift } true; 61#L523-3true [2018-11-18 10:56:39,392 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:56:39,392 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 10:56:39,393 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:56:39,394 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:56:39,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:56:39,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:56:39,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:56:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:56:39,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:56:39,554 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:56:39,554 INFO L82 PathProgramCache]: Analyzing trace with hash 460216765, now seen corresponding path program 1 times [2018-11-18 10:56:39,554 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:56:39,555 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:56:39,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:56:39,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:56:39,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:56:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:56:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:56:39,569 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:56:39,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1889965108, now seen corresponding path program 1 times [2018-11-18 10:56:39,570 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:56:39,570 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:56:39,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:56:39,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:56:39,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:56:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:56:39,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:56:39,713 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:56:39,713 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 10:56:39,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:56:39,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:56:39,827 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 6 states. [2018-11-18 10:56:40,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:56:40,019 INFO L93 Difference]: Finished difference Result 327 states and 420 transitions. [2018-11-18 10:56:40,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 10:56:40,022 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 327 states and 420 transitions. [2018-11-18 10:56:40,030 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 211 [2018-11-18 10:56:40,037 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 327 states to 297 states and 390 transitions. [2018-11-18 10:56:40,038 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 297 [2018-11-18 10:56:40,039 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 297 [2018-11-18 10:56:40,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 297 states and 390 transitions. [2018-11-18 10:56:40,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 10:56:40,042 INFO L705 BuchiCegarLoop]: Abstraction has 297 states and 390 transitions. [2018-11-18 10:56:40,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states and 390 transitions. [2018-11-18 10:56:40,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 183. [2018-11-18 10:56:40,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2018-11-18 10:56:40,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 240 transitions. [2018-11-18 10:56:40,078 INFO L728 BuchiCegarLoop]: Abstraction has 183 states and 240 transitions. [2018-11-18 10:56:40,078 INFO L608 BuchiCegarLoop]: Abstraction has 183 states and 240 transitions. [2018-11-18 10:56:40,078 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 10:56:40,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 240 transitions. [2018-11-18 10:56:40,080 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2018-11-18 10:56:40,082 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:56:40,082 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:56:40,083 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:56:40,083 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:56:40,083 INFO L794 eck$LassoCheckResult]: Stem: 575#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(13);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 110];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 44];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 80];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 117];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 109];#memory_int := #memory_int[#t~string50.base,4 + #t~string50.offset := 112];#memory_int := #memory_int[#t~string50.base,5 + #t~string50.offset := 58];#memory_int := #memory_int[#t~string50.base,6 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 110];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,3 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 41];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 32];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 10];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(13);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 44];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 77];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 101];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 116];#memory_int := #memory_int[#t~string63.base,4 + #t~string63.offset := 104];#memory_int := #memory_int[#t~string63.base,5 + #t~string63.offset := 58];#memory_int := #memory_int[#t~string63.base,6 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 67];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 82];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 73];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 84];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 75];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 41];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 491#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;assume { :begin_inline_select_helpers } true; 492#L944 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 499#L937 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 500#L952 main_#t~ret35 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 578#L498 assume 0 != main_~tmp~3;assume { :begin_inline_setup } true; 518#L469 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 519#L879 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 533#L523-3 [2018-11-18 10:56:40,083 INFO L796 eck$LassoCheckResult]: Loop: 533#L523-3 assume true; 557#L523-1 assume !false; 513#L524 assume test_~splverifierCounter~0 < 4; 514#L525 test_~tmp~4 := test_#t~nondet36;havoc test_#t~nondet36; 487#L533 assume !(0 != test_~tmp~4); 489#L533-2 test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 543#L543 assume !(0 != test_~tmp___0~0); 495#L543-2 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 528#L553 assume 0 != test_~tmp___2~0; 548#L559-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret70;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 549#L702 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 554#L889 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 480#L599 assume !(0 != ~pumpRunning~0); 481#L599-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 490#L631 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 509#L623-1 assume { :end_inline_processEnvironment__wrappee__base } true; 510#L631-1 assume { :end_inline_processEnvironment } true; 538#L606-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 544#L853 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 564#L900 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 502#L900-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 565#L616 assume { :end_inline_timeShift } true; 533#L523-3 [2018-11-18 10:56:40,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:56:40,084 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 10:56:40,084 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:56:40,084 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:56:40,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:56:40,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:56:40,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:56:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:56:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:56:40,135 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:56:40,135 INFO L82 PathProgramCache]: Analyzing trace with hash -2094297752, now seen corresponding path program 1 times [2018-11-18 10:56:40,135 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:56:40,135 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:56:40,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:56:40,138 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 10:56:40,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:56:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:56:40,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:56:40,152 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:56:40,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:56:40,153 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 10:56:40,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:56:40,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:56:40,153 INFO L87 Difference]: Start difference. First operand 183 states and 240 transitions. cyclomatic complexity: 60 Second operand 3 states. [2018-11-18 10:56:40,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:56:40,222 INFO L93 Difference]: Finished difference Result 244 states and 308 transitions. [2018-11-18 10:56:40,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:56:40,223 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 244 states and 308 transitions. [2018-11-18 10:56:40,225 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 177 [2018-11-18 10:56:40,227 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 244 states to 244 states and 308 transitions. [2018-11-18 10:56:40,228 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 244 [2018-11-18 10:56:40,228 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 244 [2018-11-18 10:56:40,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 244 states and 308 transitions. [2018-11-18 10:56:40,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 10:56:40,230 INFO L705 BuchiCegarLoop]: Abstraction has 244 states and 308 transitions. [2018-11-18 10:56:40,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states and 308 transitions. [2018-11-18 10:56:40,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2018-11-18 10:56:40,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2018-11-18 10:56:40,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 308 transitions. [2018-11-18 10:56:40,240 INFO L728 BuchiCegarLoop]: Abstraction has 244 states and 308 transitions. [2018-11-18 10:56:40,240 INFO L608 BuchiCegarLoop]: Abstraction has 244 states and 308 transitions. [2018-11-18 10:56:40,240 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 10:56:40,241 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 244 states and 308 transitions. [2018-11-18 10:56:40,243 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 177 [2018-11-18 10:56:40,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:56:40,244 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:56:40,244 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:56:40,244 INFO L867 BuchiCegarLoop]: Counterexample loop 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] [2018-11-18 10:56:40,245 INFO L794 eck$LassoCheckResult]: Stem: 1021#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(13);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 110];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 44];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 80];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 117];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 109];#memory_int := #memory_int[#t~string50.base,4 + #t~string50.offset := 112];#memory_int := #memory_int[#t~string50.base,5 + #t~string50.offset := 58];#memory_int := #memory_int[#t~string50.base,6 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 110];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,3 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 41];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 32];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 10];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(13);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 44];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 77];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 101];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 116];#memory_int := #memory_int[#t~string63.base,4 + #t~string63.offset := 104];#memory_int := #memory_int[#t~string63.base,5 + #t~string63.offset := 58];#memory_int := #memory_int[#t~string63.base,6 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 67];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 82];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 73];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 84];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 75];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 41];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 924#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;assume { :begin_inline_select_helpers } true; 925#L944 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 933#L937 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 934#L952 main_#t~ret35 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 1024#L498 assume 0 != main_~tmp~3;assume { :begin_inline_setup } true; 954#L469 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 955#L879 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 970#L523-3 [2018-11-18 10:56:40,246 INFO L796 eck$LassoCheckResult]: Loop: 970#L523-3 assume true; 999#L523-1 assume !false; 947#L524 assume test_~splverifierCounter~0 < 4; 948#L525 test_~tmp~4 := test_#t~nondet36;havoc test_#t~nondet36; 919#L533 assume !(0 != test_~tmp~4); 921#L533-2 test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 1119#L543 assume !(0 != test_~tmp___0~0); 1118#L543-2 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 1019#L553 assume 0 != test_~tmp___2~0; 1005#L559-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret70;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 995#L702 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 996#L889 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1008#L599 assume !(0 != ~pumpRunning~0); 922#L599-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 923#L631 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 976#L861 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 911#L866 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 912#L751 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1028#L751-2 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1016#L757 processEnvironment_#t~ret40 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5 := processEnvironment_#t~ret40;havoc processEnvironment_#t~ret40; 1017#L635 assume !(0 != processEnvironment_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 971#L623 assume { :end_inline_processEnvironment__wrappee__base } true; 972#L631-1 assume { :end_inline_processEnvironment } true; 977#L606-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 984#L853 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 1034#L900 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 1009#L900-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1010#L616 assume { :end_inline_timeShift } true; 970#L523-3 [2018-11-18 10:56:40,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:56:40,246 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 10:56:40,246 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:56:40,247 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:56:40,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:56:40,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:56:40,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:56:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:56:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:56:40,287 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:56:40,287 INFO L82 PathProgramCache]: Analyzing trace with hash -2114404432, now seen corresponding path program 1 times [2018-11-18 10:56:40,287 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:56:40,288 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:56:40,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:56:40,289 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 10:56:40,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:56:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:56:40,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:56:40,336 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:56:40,336 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 10:56:40,336 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 10:56:40,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 10:56:40,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:56:40,337 INFO L87 Difference]: Start difference. First operand 244 states and 308 transitions. cyclomatic complexity: 67 Second operand 5 states. [2018-11-18 10:56:40,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:56:40,460 INFO L93 Difference]: Finished difference Result 941 states and 1175 transitions. [2018-11-18 10:56:40,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 10:56:40,461 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 941 states and 1175 transitions. [2018-11-18 10:56:40,466 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 673 [2018-11-18 10:56:40,469 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 941 states to 941 states and 1175 transitions. [2018-11-18 10:56:40,469 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 941 [2018-11-18 10:56:40,469 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 941 [2018-11-18 10:56:40,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 941 states and 1175 transitions. [2018-11-18 10:56:40,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 10:56:40,472 INFO L705 BuchiCegarLoop]: Abstraction has 941 states and 1175 transitions. [2018-11-18 10:56:40,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states and 1175 transitions. [2018-11-18 10:56:40,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 477. [2018-11-18 10:56:40,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2018-11-18 10:56:40,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 593 transitions. [2018-11-18 10:56:40,490 INFO L728 BuchiCegarLoop]: Abstraction has 477 states and 593 transitions. [2018-11-18 10:56:40,490 INFO L608 BuchiCegarLoop]: Abstraction has 477 states and 593 transitions. [2018-11-18 10:56:40,491 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 10:56:40,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 477 states and 593 transitions. [2018-11-18 10:56:40,492 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 352 [2018-11-18 10:56:40,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:56:40,493 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:56:40,493 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:56:40,493 INFO L867 BuchiCegarLoop]: Counterexample loop 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] [2018-11-18 10:56:40,494 INFO L794 eck$LassoCheckResult]: Stem: 2238#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(13);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 110];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 44];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 80];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 117];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 109];#memory_int := #memory_int[#t~string50.base,4 + #t~string50.offset := 112];#memory_int := #memory_int[#t~string50.base,5 + #t~string50.offset := 58];#memory_int := #memory_int[#t~string50.base,6 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 110];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,3 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 41];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 32];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 10];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(13);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 44];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 77];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 101];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 116];#memory_int := #memory_int[#t~string63.base,4 + #t~string63.offset := 104];#memory_int := #memory_int[#t~string63.base,5 + #t~string63.offset := 58];#memory_int := #memory_int[#t~string63.base,6 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 67];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 82];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 73];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 84];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 75];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 41];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 2128#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;assume { :begin_inline_select_helpers } true; 2129#L944 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2136#L937 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 2137#L952 main_#t~ret35 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 2243#L498 assume 0 != main_~tmp~3;assume { :begin_inline_setup } true; 2157#L469 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2158#L879 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2174#L523-3 [2018-11-18 10:56:40,495 INFO L796 eck$LassoCheckResult]: Loop: 2174#L523-3 assume true; 2485#L523-1 assume !false; 2483#L524 assume test_~splverifierCounter~0 < 4; 2484#L525 test_~tmp~4 := test_#t~nondet36;havoc test_#t~nondet36; 2564#L533 assume !(0 != test_~tmp~4); 2562#L533-2 test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 2560#L543 assume !(0 != test_~tmp___0~0); 2558#L543-2 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 2557#L553 assume 0 != test_~tmp___2~0; 2556#L559-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret70;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 2568#L702 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 2567#L889 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2540#L599 assume !(0 != ~pumpRunning~0); 2126#L599-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 2127#L631 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 2181#L861 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 2115#L866 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 2116#L751 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 2247#L751-2 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 2229#L757 processEnvironment_#t~ret40 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5 := processEnvironment_#t~ret40;havoc processEnvironment_#t~ret40; 2230#L635 assume !(0 != processEnvironment_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 2289#L623 assume { :end_inline_processEnvironment__wrappee__base } true; 2566#L631-1 assume { :end_inline_processEnvironment } true; 2188#L606-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 2189#L853 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 2494#L900 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 2495#L702-1 __utac_acc__Specification5_spec__3_#t~ret72 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 2491#L904 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 2490#L900-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2486#L616 assume { :end_inline_timeShift } true; 2174#L523-3 [2018-11-18 10:56:40,496 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:56:40,496 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2018-11-18 10:56:40,496 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:56:40,496 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:56:40,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:56:40,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:56:40,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:56:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:56:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:56:40,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:56:40,529 INFO L82 PathProgramCache]: Analyzing trace with hash -442225877, now seen corresponding path program 1 times [2018-11-18 10:56:40,530 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:56:40,530 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:56:40,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:56:40,530 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 10:56:40,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:56:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:56:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:56:40,541 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:56:40,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1886883924, now seen corresponding path program 1 times [2018-11-18 10:56:40,542 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:56:40,542 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:56:40,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:56:40,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:56:40,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:56:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:56:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:56:40,689 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2018-11-18 10:57:11,386 WARN L180 SmtUtils]: Spent 30.65 s on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 10:57:32,338 WARN L180 SmtUtils]: Spent 20.95 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 10:57:32,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 10:57:32 BoogieIcfgContainer [2018-11-18 10:57:32,420 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 10:57:32,420 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:57:32,420 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:57:32,420 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:57:32,421 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:56:39" (3/4) ... [2018-11-18 10:57:32,423 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 10:57:32,470 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_349ea563-4833-496f-b42d-c15e88e53ed5/bin-2019/uautomizer/witness.graphml [2018-11-18 10:57:32,470 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:57:32,470 INFO L168 Benchmark]: Toolchain (without parser) took 54161.02 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 264.2 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -183.6 MB). Peak memory consumption was 80.6 MB. Max. memory is 11.5 GB. [2018-11-18 10:57:32,471 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:57:32,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 408.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -195.0 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:57:32,472 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.20 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-18 10:57:32,472 INFO L168 Benchmark]: Boogie Preprocessor took 24.94 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-18 10:57:32,472 INFO L168 Benchmark]: RCFGBuilder took 502.42 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: 59.4 MB). Peak memory consumption was 59.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:57:32,472 INFO L168 Benchmark]: BuchiAutomizer took 53126.08 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 107.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -61.1 MB). Peak memory consumption was 311.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:57:32,472 INFO L168 Benchmark]: Witness Printer took 49.63 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:57:32,474 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 408.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -195.0 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.20 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.94 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 502.42 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: 59.4 MB). Peak memory consumption was 59.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 53126.08 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 107.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -61.1 MB). Peak memory consumption was 311.7 MB. Max. memory is 11.5 GB. * Witness Printer took 49.63 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 477 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 53.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 52.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 578 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 477 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 567 SDtfs, 1603 SDslu, 1541 SDs, 0 SdLazy, 164 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 523]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, ",Meth:"=0, "On"=0, "On"=34, retValue_acc=0, "Pump(System:"=0, "Env(Water:%i"=0, ",Meth:"=36, ") "=28, methaneLevelCritical=0, tmp___0=0, retValue_acc=1, tmp=1, "CRIT"=0, tmp=0, ")"=0, "OK"=0, tmp___1=0, "__utac__get_this_argtype"=18, retValue_acc=0, "__utac__get_this_arg"=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c2fe5fa=0, "__utac__get_this_arg"=8, "libacc.c"=19, cleanupTimeShifts=4, switchedOnBeforeTS=0, "libacc.c"=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67c0cbd0=0, ",Pump:"=24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7da25891=176, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16238947=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d4eed=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fbcb9c3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7785482c=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=0, NULL=0, systemActive=1, waterLevel=1, ")"=26, \result=1, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a6d5225=0, "\n"=35, \result=0, "Pump(System:"=33, "Off"=0, tmp___0=0, "On"=0, ",Pump:"=0, "\n"=0, ") "=0, \result=1, retValue_acc=1, "i > 0 && i <= this->argsCount"=14, head=0, pumpRunning=0, tmp___0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@782416da=0, "On"=39, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bb4d519=0, "i > 0 && i <= this->argsCount"=11, tmp=1, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, \result=1, "Off"=31, "OK"=37, "Env(Water:%i"=29, "libacc.c"=23, retValue_acc=1, tmp=1, tmp___2=176, "i > 0 && i <= this->argsCount"=17, splverifierCounter=0, head=0, "libacc.c"=0, tmp=0, "libacc.c"=12, "i > 0 && i <= this->argsCount"=20, "__utac__get_this_arg"=0, "__utac__get_this_argtype"=16, "libacc.c"=0, "libacc.c"=0, "Off"=27, "Off"=0, "CRIT"=38, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 523]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L337] FCALL "i > 0 && i <= this->argsCount" [L337] FCALL "libacc.c" [L338] FCALL "__utac__get_this_arg" [L344] FCALL "i > 0 && i <= this->argsCount" [L344] FCALL "libacc.c" [L345] FCALL "__utac__get_this_arg" [L383] FCALL "i > 0 && i <= this->argsCount" [L383] FCALL "libacc.c" [L384] FCALL "__utac__get_this_argtype" [L390] FCALL "i > 0 && i <= this->argsCount" [L390] FCALL "libacc.c" [L391] FCALL "__utac__get_this_argtype" [L711] FCALL "Pump(System:" [L715] FCALL "On" [L719] FCALL "Off" [L723] FCALL ",Pump:" [L727] FCALL "On" [L731] FCALL "Off" [L735] FCALL ") " [L737] FCALL "\n" [L830] FCALL "Env(Water:%i" [L831] FCALL ",Meth:" [L835] FCALL "CRIT" [L839] FCALL "OK" [L843] FCALL ")" [L406] int cleanupTimeShifts = 4; [L587] int pumpRunning = 0; [L588] int systemActive = 1; [L778] int waterLevel = 1; [L779] int methaneLevelCritical = 0; [L873] int switchedOnBeforeTS ; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L489] int retValue_acc ; [L490] int tmp ; [L494] FCALL select_helpers() [L495] FCALL select_features() [L496] CALL, EXPR valid_product() [L948] int retValue_acc ; [L951] retValue_acc = 1 [L952] RET return (retValue_acc); [L496] EXPR valid_product() [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L500] FCALL setup() [L501] CALL runTest() [L479] CALL __utac_acc__Specification5_spec__1() [L878] RET switchedOnBeforeTS = 0 [L479] __utac_acc__Specification5_spec__1() [L480] CALL test() [L514] int splverifierCounter ; [L515] int tmp ; [L516] int tmp___0 ; [L517] int tmp___1 ; [L518] int tmp___2 ; [L521] splverifierCounter = 0 Loop: [L523] COND TRUE 1 [L525] COND TRUE splverifierCounter < 4 [L531] tmp = __VERIFIER_nondet_int() [L533] COND FALSE !(\read(tmp)) [L541] tmp___0 = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp___0)) [L551] tmp___2 = __VERIFIER_nondet_int() [L553] COND TRUE \read(tmp___2) [L568] CALL timeShift() [L597] CALL __utac_acc__Specification5_spec__2() [L887] CALL, EXPR isPumpRunning() [L698] int retValue_acc ; [L701] retValue_acc = pumpRunning [L702] RET return (retValue_acc); [L887] EXPR isPumpRunning() [L887] RET switchedOnBeforeTS = isPumpRunning() [L597] __utac_acc__Specification5_spec__2() [L599] COND FALSE !(\read(pumpRunning)) [L606] COND TRUE \read(systemActive) [L608] CALL processEnvironment() [L628] int tmp ; [L631] COND TRUE ! pumpRunning [L633] CALL, EXPR isHighWaterLevel() [L743] int retValue_acc ; [L744] int tmp ; [L745] int tmp___0 ; [L749] CALL, EXPR isHighWaterSensorDry() [L858] int retValue_acc ; [L861] COND TRUE waterLevel < 2 [L862] retValue_acc = 1 [L863] RET return (retValue_acc); [L749] EXPR isHighWaterSensorDry() [L749] tmp = isHighWaterSensorDry() [L751] COND TRUE \read(tmp) [L752] tmp___0 = 0 [L756] retValue_acc = tmp___0 [L757] RET return (retValue_acc); [L633] EXPR isHighWaterLevel() [L633] tmp = isHighWaterLevel() [L635] COND FALSE !(\read(tmp)) [L641] RET, FCALL processEnvironment__wrappee__base() [L608] processEnvironment() [L614] CALL __utac_acc__Specification5_spec__3() [L893] int tmp ; [L894] int tmp___0 ; [L898] CALL, EXPR getWaterLevel() [L849] int retValue_acc ; [L852] retValue_acc = waterLevel [L853] RET return (retValue_acc); [L898] EXPR getWaterLevel() [L898] tmp = getWaterLevel() [L900] COND TRUE tmp != 2 [L902] CALL, EXPR isPumpRunning() [L698] int retValue_acc ; [L701] retValue_acc = pumpRunning [L702] RET return (retValue_acc); [L902] EXPR isPumpRunning() [L902] tmp___0 = isPumpRunning() [L904] COND FALSE, RET !(\read(tmp___0)) [L614] RET __utac_acc__Specification5_spec__3() [L568] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...