./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product45_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_173332cb-6e74-4a76-926c-b69f5abd09be/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_173332cb-6e74-4a76-926c-b69f5abd09be/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_173332cb-6e74-4a76-926c-b69f5abd09be/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_173332cb-6e74-4a76-926c-b69f5abd09be/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product45_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_173332cb-6e74-4a76-926c-b69f5abd09be/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_173332cb-6e74-4a76-926c-b69f5abd09be/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 37cb317c3bc7664ed231fa78380e175cc6a4d8af ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:04:45,780 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:04:45,781 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:04:45,788 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:04:45,789 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:04:45,789 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:04:45,790 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:04:45,791 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:04:45,792 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:04:45,793 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:04:45,794 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:04:45,794 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:04:45,795 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:04:45,796 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:04:45,797 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:04:45,797 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:04:45,798 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:04:45,799 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:04:45,801 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:04:45,802 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:04:45,803 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:04:45,804 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:04:45,806 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:04:45,806 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:04:45,806 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:04:45,807 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:04:45,808 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:04:45,809 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:04:45,809 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:04:45,810 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:04:45,811 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:04:45,811 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:04:45,811 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:04:45,812 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:04:45,812 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:04:45,813 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:04:45,813 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_173332cb-6e74-4a76-926c-b69f5abd09be/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 16:04:45,825 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:04:45,825 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:04:45,826 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:04:45,827 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:04:45,827 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:04:45,827 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 16:04:45,827 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 16:04:45,827 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 16:04:45,827 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 16:04:45,827 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 16:04:45,828 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 16:04:45,828 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:04:45,828 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:04:45,828 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 16:04:45,828 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:04:45,828 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:04:45,828 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:04:45,828 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 16:04:45,828 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 16:04:45,829 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 16:04:45,829 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:04:45,829 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:04:45,829 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 16:04:45,829 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:04:45,829 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 16:04:45,829 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:04:45,829 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:04:45,829 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 16:04:45,830 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:04:45,830 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:04:45,830 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 16:04:45,830 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 16:04:45,830 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_173332cb-6e74-4a76-926c-b69f5abd09be/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 -> 37cb317c3bc7664ed231fa78380e175cc6a4d8af [2018-11-18 16:04:45,853 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:04:45,862 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:04:45,865 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:04:45,866 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:04:45,866 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:04:45,866 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_173332cb-6e74-4a76-926c-b69f5abd09be/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product45_true-unreach-call_false-termination.cil.c [2018-11-18 16:04:45,907 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_173332cb-6e74-4a76-926c-b69f5abd09be/bin-2019/uautomizer/data/86395c316/8ecd2292f9ca41039274d1b73a92e74a/FLAGd299d2d7c [2018-11-18 16:04:46,264 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:04:46,265 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_173332cb-6e74-4a76-926c-b69f5abd09be/sv-benchmarks/c/product-lines/minepump_spec5_product45_true-unreach-call_false-termination.cil.c [2018-11-18 16:04:46,272 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_173332cb-6e74-4a76-926c-b69f5abd09be/bin-2019/uautomizer/data/86395c316/8ecd2292f9ca41039274d1b73a92e74a/FLAGd299d2d7c [2018-11-18 16:04:46,665 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_173332cb-6e74-4a76-926c-b69f5abd09be/bin-2019/uautomizer/data/86395c316/8ecd2292f9ca41039274d1b73a92e74a [2018-11-18 16:04:46,667 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:04:46,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:04:46,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:04:46,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:04:46,671 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:04:46,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:04:46" (1/1) ... [2018-11-18 16:04:46,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e6dc40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:04:46, skipping insertion in model container [2018-11-18 16:04:46,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:04:46" (1/1) ... [2018-11-18 16:04:46,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:04:46,710 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:04:46,921 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:04:46,930 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:04:47,033 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:04:47,056 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:04:47,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:04:47 WrapperNode [2018-11-18 16:04:47,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:04:47,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:04:47,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:04:47,058 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:04:47,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:04:47" (1/1) ... [2018-11-18 16:04:47,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:04:47" (1/1) ... [2018-11-18 16:04:47,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:04:47,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:04:47,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:04:47,113 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:04:47,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:04:47" (1/1) ... [2018-11-18 16:04:47,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:04:47" (1/1) ... [2018-11-18 16:04:47,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:04:47" (1/1) ... [2018-11-18 16:04:47,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:04:47" (1/1) ... [2018-11-18 16:04:47,135 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:04:47" (1/1) ... [2018-11-18 16:04:47,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:04:47" (1/1) ... [2018-11-18 16:04:47,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:04:47" (1/1) ... [2018-11-18 16:04:47,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:04:47,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:04:47,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:04:47,149 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:04:47,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:04:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_173332cb-6e74-4a76-926c-b69f5abd09be/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 16:04:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:04:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:04:47,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:04:47,823 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:04:47,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:04:47 BoogieIcfgContainer [2018-11-18 16:04:47,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:04:47,825 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 16:04:47,825 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 16:04:47,827 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 16:04:47,828 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:04:47,828 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 04:04:46" (1/3) ... [2018-11-18 16:04:47,829 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6dfa3a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:04:47, skipping insertion in model container [2018-11-18 16:04:47,830 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:04:47,834 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:04:47" (2/3) ... [2018-11-18 16:04:47,835 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6dfa3a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:04:47, skipping insertion in model container [2018-11-18 16:04:47,835 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:04:47,835 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:04:47" (3/3) ... [2018-11-18 16:04:47,836 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product45_true-unreach-call_false-termination.cil.c [2018-11-18 16:04:47,870 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:04:47,870 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 16:04:47,870 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 16:04:47,870 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 16:04:47,870 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:04:47,871 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:04:47,871 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 16:04:47,871 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:04:47,871 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 16:04:47,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 192 states. [2018-11-18 16:04:47,907 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 124 [2018-11-18 16:04:47,908 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:04:47,908 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:04:47,914 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:04:47,914 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 16:04:47,914 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 16:04:47,915 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 192 states. [2018-11-18 16:04:47,920 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 124 [2018-11-18 16:04:47,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:04:47,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:04:47,921 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:04:47,921 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 16:04:47,925 INFO L794 eck$LassoCheckResult]: Stem: 141#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(21);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(30);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(9);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(25);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string53.base, #t~string53.offset := #Ultimate.alloc(13);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 79];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 110];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 102];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 102];#memory_int := #memory_int[#t~string57.base,3 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 44];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 80];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 117];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 109];#memory_int := #memory_int[#t~string59.base,4 + #t~string59.offset := 112];#memory_int := #memory_int[#t~string59.base,5 + #t~string59.offset := 58];#memory_int := #memory_int[#t~string59.base,6 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 41];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 32];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 10];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9;assume { :begin_inline_select_helpers } true; 118#L859true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 8#L852true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 129#L867true main_#t~ret74 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 148#L955true assume 0 != main_~tmp~9;assume { :begin_inline_setup } true; 64#L931true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 135#L523true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 113#L779-3true [2018-11-18 16:04:47,925 INFO L796 eck$LassoCheckResult]: Loop: 113#L779-3true assume true; 138#L779-1true assume !false; 39#L780true assume test_~splverifierCounter~0 < 4; 178#L781true test_~tmp~8 := test_#t~nondet69;havoc test_#t~nondet69; 4#L789true assume !(0 != test_~tmp~8); 186#L789-2true test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 81#L799true assume !(0 != test_~tmp___0~2); 50#L799-2true test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 140#L809true assume 0 != test_~tmp___2~0; 98#L815-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret45;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 60#L708true __utac_acc__Specification5_spec__2_#t~ret45 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret45;havoc __utac_acc__Specification5_spec__2_#t~ret45; 5#L533true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 173#L580true assume !(0 != ~pumpRunning~0); 179#L580-2true assume !(0 != ~systemActive~0); 80#L587-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_#t~ret47, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 35#L122true __utac_acc__Specification5_spec__3_#t~ret46 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret46;havoc __utac_acc__Specification5_spec__3_#t~ret46; 3#L544true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 6#L544-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 158#L597true assume { :end_inline_timeShift } true; 113#L779-3true [2018-11-18 16:04:47,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:04:47,931 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 16:04:47,932 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:04:47,933 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:04:47,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:47,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:04:47,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:04:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:04:48,102 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:04:48,102 INFO L82 PathProgramCache]: Analyzing trace with hash -448365475, now seen corresponding path program 1 times [2018-11-18 16:04:48,102 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:04:48,102 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:04:48,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:48,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:04:48,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:04:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:04:48,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:04:48,112 INFO L82 PathProgramCache]: Analyzing trace with hash 981382868, now seen corresponding path program 1 times [2018-11-18 16:04:48,112 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:04:48,112 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:04:48,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:48,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:04:48,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:48,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:04:48,256 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 16:04:48,258 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:04:48,258 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 16:04:48,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 16:04:48,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 16:04:48,355 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 6 states. [2018-11-18 16:04:48,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:04:48,506 INFO L93 Difference]: Finished difference Result 189 states and 244 transitions. [2018-11-18 16:04:48,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 16:04:48,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 189 states and 244 transitions. [2018-11-18 16:04:48,514 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2018-11-18 16:04:48,519 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 189 states to 179 states and 234 transitions. [2018-11-18 16:04:48,520 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 179 [2018-11-18 16:04:48,521 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 179 [2018-11-18 16:04:48,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 179 states and 234 transitions. [2018-11-18 16:04:48,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:04:48,523 INFO L705 BuchiCegarLoop]: Abstraction has 179 states and 234 transitions. [2018-11-18 16:04:48,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states and 234 transitions. [2018-11-18 16:04:48,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2018-11-18 16:04:48,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-11-18 16:04:48,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 234 transitions. [2018-11-18 16:04:48,548 INFO L728 BuchiCegarLoop]: Abstraction has 179 states and 234 transitions. [2018-11-18 16:04:48,548 INFO L608 BuchiCegarLoop]: Abstraction has 179 states and 234 transitions. [2018-11-18 16:04:48,550 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 16:04:48,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 179 states and 234 transitions. [2018-11-18 16:04:48,552 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2018-11-18 16:04:48,552 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:04:48,552 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:04:48,553 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:04:48,553 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] [2018-11-18 16:04:48,553 INFO L794 eck$LassoCheckResult]: Stem: 559#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(21);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(30);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(9);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(25);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string53.base, #t~string53.offset := #Ultimate.alloc(13);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 79];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 110];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 102];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 102];#memory_int := #memory_int[#t~string57.base,3 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 44];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 80];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 117];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 109];#memory_int := #memory_int[#t~string59.base,4 + #t~string59.offset := 112];#memory_int := #memory_int[#t~string59.base,5 + #t~string59.offset := 58];#memory_int := #memory_int[#t~string59.base,6 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 41];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 32];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 10];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 410#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9;assume { :begin_inline_select_helpers } true; 411#L859 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 412#L852 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 413#L867 main_#t~ret74 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 550#L955 assume 0 != main_~tmp~9;assume { :begin_inline_setup } true; 487#L931 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 488#L523 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 542#L779-3 [2018-11-18 16:04:48,554 INFO L796 eck$LassoCheckResult]: Loop: 542#L779-3 assume true; 543#L779-1 assume !false; 454#L780 assume test_~splverifierCounter~0 < 4; 455#L781 test_~tmp~8 := test_#t~nondet69;havoc test_#t~nondet69; 402#L789 assume !(0 != test_~tmp~8); 404#L789-2 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 514#L799 assume !(0 != test_~tmp___0~2); 470#L799-2 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 471#L809 assume 0 != test_~tmp___2~0; 533#L815-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret45;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 483#L708 __utac_acc__Specification5_spec__2_#t~ret45 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret45;havoc __utac_acc__Specification5_spec__2_#t~ret45; 405#L533 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 406#L580 assume !(0 != ~pumpRunning~0); 460#L580-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 568#L638 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret48, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 452#L612-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 419#L604-3 assume { :end_inline_processEnvironment__wrappee__base } true; 420#L612-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 449#L638-1 assume { :end_inline_processEnvironment } true; 511#L587-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_#t~ret47, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 448#L122 __utac_acc__Specification5_spec__3_#t~ret46 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret46;havoc __utac_acc__Specification5_spec__3_#t~ret46; 399#L544 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 400#L544-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 407#L597 assume { :end_inline_timeShift } true; 542#L779-3 [2018-11-18 16:04:48,554 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:04:48,554 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 16:04:48,554 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:04:48,554 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:04:48,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:48,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:04:48,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:04:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:04:48,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:04:48,604 INFO L82 PathProgramCache]: Analyzing trace with hash -668171127, now seen corresponding path program 1 times [2018-11-18 16:04:48,606 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:04:48,606 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:04:48,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:48,607 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:04:48,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:04:48,624 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 16:04:48,624 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:04:48,625 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 16:04:48,625 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 16:04:48,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 16:04:48,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 16:04:48,626 INFO L87 Difference]: Start difference. First operand 179 states and 234 transitions. cyclomatic complexity: 57 Second operand 3 states. [2018-11-18 16:04:48,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:04:48,728 INFO L93 Difference]: Finished difference Result 251 states and 316 transitions. [2018-11-18 16:04:48,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 16:04:48,729 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 251 states and 316 transitions. [2018-11-18 16:04:48,732 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2018-11-18 16:04:48,733 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 251 states to 251 states and 316 transitions. [2018-11-18 16:04:48,733 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 251 [2018-11-18 16:04:48,734 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 251 [2018-11-18 16:04:48,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 251 states and 316 transitions. [2018-11-18 16:04:48,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:04:48,735 INFO L705 BuchiCegarLoop]: Abstraction has 251 states and 316 transitions. [2018-11-18 16:04:48,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states and 316 transitions. [2018-11-18 16:04:48,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2018-11-18 16:04:48,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2018-11-18 16:04:48,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 316 transitions. [2018-11-18 16:04:48,744 INFO L728 BuchiCegarLoop]: Abstraction has 251 states and 316 transitions. [2018-11-18 16:04:48,744 INFO L608 BuchiCegarLoop]: Abstraction has 251 states and 316 transitions. [2018-11-18 16:04:48,744 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 16:04:48,745 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 251 states and 316 transitions. [2018-11-18 16:04:48,746 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2018-11-18 16:04:48,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:04:48,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:04:48,748 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:04:48,748 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 16:04:48,749 INFO L794 eck$LassoCheckResult]: Stem: 1008#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(21);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(30);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(9);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(25);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string53.base, #t~string53.offset := #Ultimate.alloc(13);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 79];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 110];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 102];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 102];#memory_int := #memory_int[#t~string57.base,3 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 44];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 80];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 117];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 109];#memory_int := #memory_int[#t~string59.base,4 + #t~string59.offset := 112];#memory_int := #memory_int[#t~string59.base,5 + #t~string59.offset := 58];#memory_int := #memory_int[#t~string59.base,6 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 41];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 32];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 10];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 844#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9;assume { :begin_inline_select_helpers } true; 845#L859 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 846#L852 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 847#L867 main_#t~ret74 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 999#L955 assume 0 != main_~tmp~9;assume { :begin_inline_setup } true; 928#L931 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 929#L523 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 990#L779-3 [2018-11-18 16:04:48,749 INFO L796 eck$LassoCheckResult]: Loop: 990#L779-3 assume true; 991#L779-1 assume !false; 892#L780 assume test_~splverifierCounter~0 < 4; 893#L781 test_~tmp~8 := test_#t~nondet69;havoc test_#t~nondet69; 838#L789 assume !(0 != test_~tmp~8); 840#L789-2 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 957#L799 assume !(0 != test_~tmp___0~2); 909#L799-2 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 910#L809 assume 0 != test_~tmp___2~0; 977#L815-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret45;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 923#L708 __utac_acc__Specification5_spec__2_#t~ret45 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret45;havoc __utac_acc__Specification5_spec__2_#t~ret45; 841#L533 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 842#L580 assume !(0 != ~pumpRunning~0); 1032#L580-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1021#L638 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret48, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 890#L612-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 891#L130-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 969#L135-1 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 978#L757-3 assume !(0 != isHighWaterLevel_~tmp~7);isHighWaterLevel_~tmp___0~1 := 1; 992#L757-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 974#L763-1 processEnvironment__wrappee__methaneQuery_#t~ret48 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~4 := processEnvironment__wrappee__methaneQuery_#t~ret48;havoc processEnvironment__wrappee__methaneQuery_#t~ret48; 975#L616-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4);assume { :begin_inline_processEnvironment__wrappee__base } true; 878#L604-2 assume { :end_inline_processEnvironment__wrappee__base } true; 879#L612-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 914#L638-1 assume { :end_inline_processEnvironment } true; 1055#L587-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_#t~ret47, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 886#L122 __utac_acc__Specification5_spec__3_#t~ret46 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret46;havoc __utac_acc__Specification5_spec__3_#t~ret46; 835#L544 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 836#L544-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 843#L597 assume { :end_inline_timeShift } true; 990#L779-3 [2018-11-18 16:04:48,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:04:48,749 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 16:04:48,749 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:04:48,750 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:04:48,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:48,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:04:48,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:48,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:04:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:04:48,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:04:48,786 INFO L82 PathProgramCache]: Analyzing trace with hash -883948225, now seen corresponding path program 1 times [2018-11-18 16:04:48,786 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:04:48,786 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:04:48,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:48,787 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:04:48,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:04:48,829 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 16:04:48,829 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:04:48,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 16:04:48,830 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 16:04:48,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 16:04:48,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 16:04:48,830 INFO L87 Difference]: Start difference. First operand 251 states and 316 transitions. cyclomatic complexity: 67 Second operand 4 states. [2018-11-18 16:04:48,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:04:48,899 INFO L93 Difference]: Finished difference Result 488 states and 606 transitions. [2018-11-18 16:04:48,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 16:04:48,900 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 488 states and 606 transitions. [2018-11-18 16:04:48,903 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 344 [2018-11-18 16:04:48,906 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 488 states to 488 states and 606 transitions. [2018-11-18 16:04:48,906 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 488 [2018-11-18 16:04:48,906 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 488 [2018-11-18 16:04:48,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 488 states and 606 transitions. [2018-11-18 16:04:48,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:04:48,909 INFO L705 BuchiCegarLoop]: Abstraction has 488 states and 606 transitions. [2018-11-18 16:04:48,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states and 606 transitions. [2018-11-18 16:04:48,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 263. [2018-11-18 16:04:48,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2018-11-18 16:04:48,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 328 transitions. [2018-11-18 16:04:48,922 INFO L728 BuchiCegarLoop]: Abstraction has 263 states and 328 transitions. [2018-11-18 16:04:48,922 INFO L608 BuchiCegarLoop]: Abstraction has 263 states and 328 transitions. [2018-11-18 16:04:48,923 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 16:04:48,923 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 263 states and 328 transitions. [2018-11-18 16:04:48,925 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2018-11-18 16:04:48,925 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:04:48,926 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:04:48,926 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:04:48,926 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 16:04:48,927 INFO L794 eck$LassoCheckResult]: Stem: 1758#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(21);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(30);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(9);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(25);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string53.base, #t~string53.offset := #Ultimate.alloc(13);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 79];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 110];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 102];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 102];#memory_int := #memory_int[#t~string57.base,3 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 44];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 80];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 117];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 109];#memory_int := #memory_int[#t~string59.base,4 + #t~string59.offset := 112];#memory_int := #memory_int[#t~string59.base,5 + #t~string59.offset := 58];#memory_int := #memory_int[#t~string59.base,6 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 41];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 32];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 10];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1593#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9;assume { :begin_inline_select_helpers } true; 1594#L859 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1595#L852 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1596#L867 main_#t~ret74 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 1749#L955 assume 0 != main_~tmp~9;assume { :begin_inline_setup } true; 1675#L931 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1676#L523 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1737#L779-3 [2018-11-18 16:04:48,927 INFO L796 eck$LassoCheckResult]: Loop: 1737#L779-3 assume true; 1738#L779-1 assume !false; 1640#L780 assume test_~splverifierCounter~0 < 4; 1641#L781 test_~tmp~8 := test_#t~nondet69;havoc test_#t~nondet69; 1587#L789 assume !(0 != test_~tmp~8); 1589#L789-2 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 1701#L799 assume !(0 != test_~tmp___0~2); 1658#L799-2 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 1659#L809 assume 0 != test_~tmp___2~0; 1724#L815-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret45;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 1670#L708 __utac_acc__Specification5_spec__2_#t~ret45 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret45;havoc __utac_acc__Specification5_spec__2_#t~ret45; 1590#L533 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1591#L580 assume !(0 != ~pumpRunning~0); 1779#L580-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1771#L638 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret48, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1638#L612-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1639#L130-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1714#L135-1 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 1725#L757-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1739#L757-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1721#L763-1 processEnvironment__wrappee__methaneQuery_#t~ret48 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~4 := processEnvironment__wrappee__methaneQuery_#t~ret48;havoc processEnvironment__wrappee__methaneQuery_#t~ret48; 1722#L616-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4);assume { :begin_inline_processEnvironment__wrappee__base } true; 1626#L604-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1627#L612-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1637#L638-1 assume { :end_inline_processEnvironment } true; 1700#L587-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_#t~ret47, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1634#L122 __utac_acc__Specification5_spec__3_#t~ret46 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret46;havoc __utac_acc__Specification5_spec__3_#t~ret46; 1584#L544 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 1585#L544-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1592#L597 assume { :end_inline_timeShift } true; 1737#L779-3 [2018-11-18 16:04:48,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:04:48,927 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2018-11-18 16:04:48,927 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:04:48,928 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:04:48,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:48,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:04:48,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:04:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:04:48,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:04:48,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1142113663, now seen corresponding path program 1 times [2018-11-18 16:04:48,963 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:04:48,963 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:04:48,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:48,964 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:04:48,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:04:49,009 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 16:04:49,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:04:49,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 16:04:49,010 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 16:04:49,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 16:04:49,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 16:04:49,011 INFO L87 Difference]: Start difference. First operand 263 states and 328 transitions. cyclomatic complexity: 67 Second operand 5 states. [2018-11-18 16:04:49,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:04:49,141 INFO L93 Difference]: Finished difference Result 720 states and 878 transitions. [2018-11-18 16:04:49,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 16:04:49,142 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 720 states and 878 transitions. [2018-11-18 16:04:49,145 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 461 [2018-11-18 16:04:49,147 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 720 states to 720 states and 878 transitions. [2018-11-18 16:04:49,147 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 720 [2018-11-18 16:04:49,148 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 720 [2018-11-18 16:04:49,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 720 states and 878 transitions. [2018-11-18 16:04:49,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:04:49,149 INFO L705 BuchiCegarLoop]: Abstraction has 720 states and 878 transitions. [2018-11-18 16:04:49,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states and 878 transitions. [2018-11-18 16:04:49,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 492. [2018-11-18 16:04:49,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 492 states. [2018-11-18 16:04:49,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 602 transitions. [2018-11-18 16:04:49,161 INFO L728 BuchiCegarLoop]: Abstraction has 492 states and 602 transitions. [2018-11-18 16:04:49,161 INFO L608 BuchiCegarLoop]: Abstraction has 492 states and 602 transitions. [2018-11-18 16:04:49,161 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 16:04:49,161 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 492 states and 602 transitions. [2018-11-18 16:04:49,164 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 346 [2018-11-18 16:04:49,165 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:04:49,165 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:04:49,165 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:04:49,165 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, 1, 1] [2018-11-18 16:04:49,165 INFO L794 eck$LassoCheckResult]: Stem: 2759#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(21);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(30);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(9);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(25);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string53.base, #t~string53.offset := #Ultimate.alloc(13);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 79];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 110];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 102];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 102];#memory_int := #memory_int[#t~string57.base,3 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 44];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 80];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 117];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 109];#memory_int := #memory_int[#t~string59.base,4 + #t~string59.offset := 112];#memory_int := #memory_int[#t~string59.base,5 + #t~string59.offset := 58];#memory_int := #memory_int[#t~string59.base,6 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 41];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 32];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 10];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2596#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9;assume { :begin_inline_select_helpers } true; 2597#L859 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2598#L852 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 2599#L867 main_#t~ret74 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 2749#L955 assume 0 != main_~tmp~9;assume { :begin_inline_setup } true; 2676#L931 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2677#L523 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2739#L779-3 [2018-11-18 16:04:49,166 INFO L796 eck$LassoCheckResult]: Loop: 2739#L779-3 assume true; 2740#L779-1 assume !false; 2641#L780 assume test_~splverifierCounter~0 < 4; 2642#L781 test_~tmp~8 := test_#t~nondet69;havoc test_#t~nondet69; 2585#L789 assume !(0 != test_~tmp~8); 2587#L789-2 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 2704#L799 assume !(0 != test_~tmp___0~2); 2658#L799-2 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 2659#L809 assume 0 != test_~tmp___2~0; 2725#L815-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret45;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 2673#L708 __utac_acc__Specification5_spec__2_#t~ret45 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret45;havoc __utac_acc__Specification5_spec__2_#t~ret45; 2588#L533 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2589#L580 assume !(0 != ~pumpRunning~0); 2786#L580-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 2776#L638 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret48, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 2639#L612-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 2640#L130-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 2716#L135-1 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 3023#L757-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 3020#L757-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 3017#L763-1 processEnvironment__wrappee__methaneQuery_#t~ret48 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~4 := processEnvironment__wrappee__methaneQuery_#t~ret48;havoc processEnvironment__wrappee__methaneQuery_#t~ret48; 3011#L616-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4);assume { :begin_inline_processEnvironment__wrappee__base } true; 3005#L604-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3001#L612-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3000#L638-1 assume { :end_inline_processEnvironment } true; 2703#L587-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_#t~ret47, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 2634#L122 __utac_acc__Specification5_spec__3_#t~ret46 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret46;havoc __utac_acc__Specification5_spec__3_#t~ret46; 2583#L544 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 2584#L708-1 __utac_acc__Specification5_spec__3_#t~ret47 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret47;havoc __utac_acc__Specification5_spec__3_#t~ret47; 2723#L548 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 2590#L544-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2591#L597 assume { :end_inline_timeShift } true; 2739#L779-3 [2018-11-18 16:04:49,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:04:49,166 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2018-11-18 16:04:49,166 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:04:49,166 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:04:49,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:49,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:04:49,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:04:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:04:49,199 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:04:49,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1921301724, now seen corresponding path program 1 times [2018-11-18 16:04:49,200 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:04:49,200 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:04:49,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:49,201 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:04:49,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:04:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:04:49,212 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:04:49,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1777108027, now seen corresponding path program 1 times [2018-11-18 16:04:49,212 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:04:49,212 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:04:49,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:49,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:04:49,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:04:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:04:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:04:49,381 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2018-11-18 16:05:20,420 WARN L180 SmtUtils]: Spent 30.97 s on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 16:05:31,079 WARN L180 SmtUtils]: Spent 10.66 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 16:05:31,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 04:05:31 BoogieIcfgContainer [2018-11-18 16:05:31,142 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 16:05:31,143 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:05:31,143 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:05:31,143 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:05:31,143 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:04:47" (3/4) ... [2018-11-18 16:05:31,146 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 16:05:31,190 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_173332cb-6e74-4a76-926c-b69f5abd09be/bin-2019/uautomizer/witness.graphml [2018-11-18 16:05:31,190 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:05:31,191 INFO L168 Benchmark]: Toolchain (without parser) took 44523.00 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 338.2 MB). Free memory was 958.1 MB in the beginning and 1.2 GB in the end (delta: -242.7 MB). Peak memory consumption was 95.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:05:31,191 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:05:31,191 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 958.1 MB in the beginning and 1.1 GB in the end (delta: -182.9 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:05:31,191 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.09 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:05:31,191 INFO L168 Benchmark]: Boogie Preprocessor took 35.50 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:05:31,192 INFO L168 Benchmark]: RCFGBuilder took 675.31 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: 69.6 MB). Peak memory consumption was 69.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:05:31,192 INFO L168 Benchmark]: BuchiAutomizer took 43317.53 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 187.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -149.5 MB). Peak memory consumption was 323.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:05:31,192 INFO L168 Benchmark]: Witness Printer took 47.44 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:05:31,193 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 388.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 958.1 MB in the beginning and 1.1 GB in the end (delta: -182.9 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.09 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.50 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 675.31 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: 69.6 MB). Peak memory consumption was 69.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 43317.53 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 187.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -149.5 MB). Peak memory consumption was 323.1 MB. Max. memory is 11.5 GB. * Witness Printer took 47.44 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 492 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 43.2s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 42.6s. Construction of modules took 0.3s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 453 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 492 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1059 SDtfs, 2042 SDslu, 1279 SDs, 0 SdLazy, 185 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI3 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: 779]: 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, "On"=38, "Env(Water:%i"=22, "Off"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5fb1dd6=0, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@401b1cbd=0, "libacc.c"=0, "OK"=18, "On"=0, "Off"=37, "libacc.c"=29, "__utac__get_this_argtype"=0, methaneLevelCritical=0, "i > 0 && i <= this->argsCount"=31, retValue_acc=1, tmp___0=0, tmp=1, ") "=0, "libacc.c"=24, "__utac__get_this_arg"=11, retValue_acc=0, "\n"=0, tmp=0, tmp___1=0, "libacc.c"=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33d9510d=0, "i > 0 && i <= this->argsCount"=16, "__utac__get_this_argtype"=28, cleanupTimeShifts=4, switchedOnBeforeTS=0, "i > 0 && i <= this->argsCount"=12, "__utac__get_this_argtype"=26, \result=0, "Pump(System:"=35, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f1a1a23=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54f486f9=0, "libacc.c"=0, NULL=0, systemActive=1, waterLevel=1, \result=1, "libacc.c"=0, "__utac__get_this_arg"=0, "libacc.c"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17524f88=0, \result=0, "On"=0, "Off"=0, retValue_acc=0, "Pump(System:"=0, tmp___0=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, "Off"=33, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@371c42ac=0, "__utac__get_this_arg"=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a3dbc14=0, "\n"=39, "On"=36, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@275bd005=177, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b8a66ad=0, "CRIT"=19, tmp=1, tmp___2=177, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f304a00=0, "__utac__get_this_arg"=14, splverifierCounter=0, "Env(Water:%i"=0, ",Meth:"=0, ",Pump:"=0, ")"=0, "OK"=0, "CRIT"=0, ")"=17, ",Pump:"=34, head=0, "i > 0 && i <= this->argsCount"=0, tmp=0, tmp=1, "libacc.c"=8, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=0, ",Meth:"=20, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=27, retValue_acc=0, ") "=40, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 779]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L99] FCALL "Env(Water:%i" [L100] FCALL ",Meth:" [L104] FCALL "CRIT" [L108] FCALL "OK" [L112] FCALL ")" [L447] FCALL "i > 0 && i <= this->argsCount" [L447] FCALL "libacc.c" [L448] FCALL "__utac__get_this_arg" [L454] FCALL "i > 0 && i <= this->argsCount" [L454] FCALL "libacc.c" [L455] FCALL "__utac__get_this_arg" [L493] FCALL "i > 0 && i <= this->argsCount" [L493] FCALL "libacc.c" [L494] FCALL "__utac__get_this_argtype" [L500] FCALL "i > 0 && i <= this->argsCount" [L500] FCALL "libacc.c" [L501] FCALL "__utac__get_this_argtype" [L717] FCALL "Pump(System:" [L721] FCALL "On" [L725] FCALL "Off" [L729] FCALL ",Pump:" [L733] FCALL "On" [L737] FCALL "Off" [L741] FCALL ") " [L743] FCALL "\n" [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L517] int switchedOnBeforeTS ; [L570] int pumpRunning = 0; [L571] int systemActive = 1; [L872] int cleanupTimeShifts = 4; [L319] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L946] int retValue_acc ; [L947] int tmp ; [L951] FCALL select_helpers() [L952] FCALL select_features() [L953] CALL, EXPR valid_product() [L863] int retValue_acc ; [L866] retValue_acc = 1 [L867] RET return (retValue_acc); [L953] EXPR valid_product() [L953] tmp = valid_product() [L955] COND TRUE \read(tmp) [L957] FCALL setup() [L958] CALL runTest() [L939] CALL __utac_acc__Specification5_spec__1() [L522] RET switchedOnBeforeTS = 0 [L939] __utac_acc__Specification5_spec__1() [L940] CALL test() [L770] int splverifierCounter ; [L771] int tmp ; [L772] int tmp___0 ; [L773] int tmp___1 ; [L774] int tmp___2 ; [L777] splverifierCounter = 0 Loop: [L779] COND TRUE 1 [L781] COND TRUE splverifierCounter < 4 [L787] tmp = __VERIFIER_nondet_int() [L789] COND FALSE !(\read(tmp)) [L797] tmp___0 = __VERIFIER_nondet_int() [L799] COND FALSE !(\read(tmp___0)) [L807] tmp___2 = __VERIFIER_nondet_int() [L809] COND TRUE \read(tmp___2) [L822] CALL timeShift() [L578] CALL __utac_acc__Specification5_spec__2() [L531] CALL, EXPR isPumpRunning() [L704] int retValue_acc ; [L707] retValue_acc = pumpRunning [L708] RET return (retValue_acc); [L531] EXPR isPumpRunning() [L531] RET switchedOnBeforeTS = isPumpRunning() [L578] __utac_acc__Specification5_spec__2() [L580] COND FALSE !(\read(pumpRunning)) [L587] COND TRUE \read(systemActive) [L589] CALL processEnvironment() [L635] int tmp ; [L638] COND FALSE !(\read(pumpRunning)) [L653] CALL processEnvironment__wrappee__methaneQuery() [L609] int tmp ; [L612] COND TRUE ! pumpRunning [L614] CALL, EXPR isHighWaterLevel() [L749] int retValue_acc ; [L750] int tmp ; [L751] int tmp___0 ; [L755] CALL, EXPR isHighWaterSensorDry() [L127] int retValue_acc ; [L130] COND TRUE waterLevel < 2 [L131] retValue_acc = 1 [L132] RET return (retValue_acc); [L755] EXPR isHighWaterSensorDry() [L755] tmp = isHighWaterSensorDry() [L757] COND TRUE \read(tmp) [L758] tmp___0 = 0 [L762] retValue_acc = tmp___0 [L763] RET return (retValue_acc); [L614] EXPR isHighWaterLevel() [L614] tmp = isHighWaterLevel() [L616] COND FALSE !(\read(tmp)) [L622] RET, FCALL processEnvironment__wrappee__base() [L653] RET processEnvironment__wrappee__methaneQuery() [L589] processEnvironment() [L595] CALL __utac_acc__Specification5_spec__3() [L537] int tmp ; [L538] int tmp___0 ; [L542] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] RET return (retValue_acc); [L542] EXPR getWaterLevel() [L542] tmp = getWaterLevel() [L544] COND TRUE tmp != 2 [L546] CALL, EXPR isPumpRunning() [L704] int retValue_acc ; [L707] retValue_acc = pumpRunning [L708] RET return (retValue_acc); [L546] EXPR isPumpRunning() [L546] tmp___0 = isPumpRunning() [L548] COND FALSE, RET !(\read(tmp___0)) [L595] RET __utac_acc__Specification5_spec__3() [L822] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...