./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product41_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_f6660883-25ca-46d1-86ae-f9d255fd0748/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f6660883-25ca-46d1-86ae-f9d255fd0748/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f6660883-25ca-46d1-86ae-f9d255fd0748/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f6660883-25ca-46d1-86ae-f9d255fd0748/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product41_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f6660883-25ca-46d1-86ae-f9d255fd0748/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f6660883-25ca-46d1-86ae-f9d255fd0748/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 5f4fa6f1cc0ba42b6f98a2dfe04ac0e8501306bf ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 15:12:56,065 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:12:56,066 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:12:56,073 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:12:56,074 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:12:56,074 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:12:56,075 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:12:56,076 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:12:56,077 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:12:56,077 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:12:56,078 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:12:56,078 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:12:56,079 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:12:56,079 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:12:56,080 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:12:56,081 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:12:56,081 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:12:56,082 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:12:56,084 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:12:56,085 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:12:56,085 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:12:56,086 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:12:56,088 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:12:56,088 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:12:56,088 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:12:56,089 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:12:56,089 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:12:56,090 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:12:56,091 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:12:56,091 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:12:56,091 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:12:56,092 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:12:56,092 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:12:56,092 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:12:56,093 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:12:56,093 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:12:56,094 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f6660883-25ca-46d1-86ae-f9d255fd0748/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 15:12:56,102 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:12:56,102 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:12:56,103 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:12:56,103 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:12:56,104 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 15:12:56,104 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 15:12:56,104 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 15:12:56,104 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 15:12:56,104 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 15:12:56,104 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 15:12:56,104 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 15:12:56,104 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:12:56,105 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:12:56,105 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 15:12:56,105 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:12:56,105 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:12:56,105 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:12:56,105 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 15:12:56,105 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 15:12:56,106 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 15:12:56,106 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:12:56,106 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:12:56,106 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 15:12:56,106 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:12:56,106 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 15:12:56,106 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:12:56,106 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:12:56,107 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 15:12:56,107 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:12:56,107 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 15:12:56,107 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 15:12:56,108 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 15:12:56,108 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_f6660883-25ca-46d1-86ae-f9d255fd0748/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 -> 5f4fa6f1cc0ba42b6f98a2dfe04ac0e8501306bf [2018-11-18 15:12:56,132 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:12:56,141 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:12:56,144 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:12:56,145 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:12:56,145 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:12:56,146 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f6660883-25ca-46d1-86ae-f9d255fd0748/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product41_true-unreach-call_false-termination.cil.c [2018-11-18 15:12:56,190 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f6660883-25ca-46d1-86ae-f9d255fd0748/bin-2019/uautomizer/data/61c0e5060/bc9bf4ce7b424be39e2d3d9c5a01d9dc/FLAG2544df06d [2018-11-18 15:12:56,636 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:12:56,637 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f6660883-25ca-46d1-86ae-f9d255fd0748/sv-benchmarks/c/product-lines/minepump_spec5_product41_true-unreach-call_false-termination.cil.c [2018-11-18 15:12:56,646 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f6660883-25ca-46d1-86ae-f9d255fd0748/bin-2019/uautomizer/data/61c0e5060/bc9bf4ce7b424be39e2d3d9c5a01d9dc/FLAG2544df06d [2018-11-18 15:12:56,658 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f6660883-25ca-46d1-86ae-f9d255fd0748/bin-2019/uautomizer/data/61c0e5060/bc9bf4ce7b424be39e2d3d9c5a01d9dc [2018-11-18 15:12:56,660 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:12:56,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:12:56,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:12:56,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:12:56,664 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:12:56,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:12:56" (1/1) ... [2018-11-18 15:12:56,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae989df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:56, skipping insertion in model container [2018-11-18 15:12:56,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:12:56" (1/1) ... [2018-11-18 15:12:56,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:12:56,702 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:12:56,893 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:12:56,900 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:12:56,998 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:12:57,019 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:12:57,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:57 WrapperNode [2018-11-18 15:12:57,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:12:57,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:12:57,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:12:57,021 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:12:57,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:57" (1/1) ... [2018-11-18 15:12:57,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:57" (1/1) ... [2018-11-18 15:12:57,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:12:57,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:12:57,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:12:57,066 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:12:57,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:57" (1/1) ... [2018-11-18 15:12:57,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:57" (1/1) ... [2018-11-18 15:12:57,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:57" (1/1) ... [2018-11-18 15:12:57,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:57" (1/1) ... [2018-11-18 15:12:57,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:57" (1/1) ... [2018-11-18 15:12:57,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:57" (1/1) ... [2018-11-18 15:12:57,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:57" (1/1) ... [2018-11-18 15:12:57,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:12:57,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:12:57,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:12:57,091 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:12:57,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f6660883-25ca-46d1-86ae-f9d255fd0748/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 15:12:57,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:12:57,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:12:57,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:12:57,621 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:12:57,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:12:57 BoogieIcfgContainer [2018-11-18 15:12:57,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:12:57,622 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 15:12:57,622 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 15:12:57,625 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 15:12:57,625 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 15:12:57,625 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 03:12:56" (1/3) ... [2018-11-18 15:12:57,626 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6411bc9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 03:12:57, skipping insertion in model container [2018-11-18 15:12:57,626 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 15:12:57,627 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:57" (2/3) ... [2018-11-18 15:12:57,627 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6411bc9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 03:12:57, skipping insertion in model container [2018-11-18 15:12:57,627 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 15:12:57,627 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:12:57" (3/3) ... [2018-11-18 15:12:57,629 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product41_true-unreach-call_false-termination.cil.c [2018-11-18 15:12:57,672 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:12:57,672 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 15:12:57,672 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 15:12:57,672 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 15:12:57,672 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:12:57,672 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:12:57,673 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 15:12:57,673 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:12:57,673 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 15:12:57,682 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states. [2018-11-18 15:12:57,700 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2018-11-18 15:12:57,700 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:12:57,700 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:12:57,705 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:12:57,705 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 15:12:57,705 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 15:12:57,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states. [2018-11-18 15:12:57,708 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2018-11-18 15:12:57,708 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:12:57,709 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:12:57,709 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:12:57,709 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 15:12:57,712 INFO L794 eck$LassoCheckResult]: Stem: 88#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 44];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 77];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 101];#memory_int := #memory_int[#t~string6.base,3 + #t~string6.offset := 116];#memory_int := #memory_int[#t~string6.base,4 + #t~string6.offset := 104];#memory_int := #memory_int[#t~string6.base,5 + #t~string6.offset := 58];#memory_int := #memory_int[#t~string6.base,6 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 67];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 82];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 73];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 84];#memory_int := #memory_int[#t~string8.base,4 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 75];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 41];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(13);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 79];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 110];#memory_int := #memory_int[#t~string20.base,2 + #t~string20.offset := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,3 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 44];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 80];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 117];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 109];#memory_int := #memory_int[#t~string24.base,4 + #t~string24.offset := 112];#memory_int := #memory_int[#t~string24.base,5 + #t~string24.offset := 58];#memory_int := #memory_int[#t~string24.base,6 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 79];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 110];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,3 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 41];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 32];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 10];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(21);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(30);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(9);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(25);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 18#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 51#L923true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 104#L916true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 53#L931true main_#t~ret13 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 78#L281true assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 83#L253true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 98#L49true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 34#L480-3true [2018-11-18 15:12:57,713 INFO L796 eck$LassoCheckResult]: Loop: 34#L480-3true assume true; 44#L480-1true assume !false; 119#L481true assume test_~splverifierCounter~0 < 4; 70#L482true test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 87#L490true assume !(0 != test_~tmp~5); 73#L490-2true test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 121#L500true assume !(0 != test_~tmp___0~2); 125#L500-2true test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 46#L510true assume 0 != test_~tmp___2~0; 29#L516-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret0;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 92#L410true __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 27#L59true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 19#L307true assume !(0 != ~pumpRunning~0); 20#L307-2true assume !(0 != ~systemActive~0); 68#L314-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;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; 113#L173true __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 28#L70true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 26#L70-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 116#L324true assume { :end_inline_timeShift } true; 34#L480-3true [2018-11-18 15:12:57,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:57,718 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 15:12:57,719 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:57,719 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:57,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:57,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:12:57,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:57,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:57,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1834926813, now seen corresponding path program 1 times [2018-11-18 15:12:57,866 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:57,866 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:57,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:57,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:12:57,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:57,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:57,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1030292140, now seen corresponding path program 1 times [2018-11-18 15:12:57,879 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:57,879 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:57,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:57,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:12:57,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:12:58,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:12:58,001 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:12:58,001 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:12:58,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:12:58,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:12:58,082 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 6 states. [2018-11-18 15:12:58,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:12:58,205 INFO L93 Difference]: Finished difference Result 126 states and 160 transitions. [2018-11-18 15:12:58,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 15:12:58,207 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 160 transitions. [2018-11-18 15:12:58,211 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 78 [2018-11-18 15:12:58,214 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 116 states and 150 transitions. [2018-11-18 15:12:58,215 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 116 [2018-11-18 15:12:58,215 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 116 [2018-11-18 15:12:58,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 150 transitions. [2018-11-18 15:12:58,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 15:12:58,216 INFO L705 BuchiCegarLoop]: Abstraction has 116 states and 150 transitions. [2018-11-18 15:12:58,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 150 transitions. [2018-11-18 15:12:58,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2018-11-18 15:12:58,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-11-18 15:12:58,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 150 transitions. [2018-11-18 15:12:58,241 INFO L728 BuchiCegarLoop]: Abstraction has 116 states and 150 transitions. [2018-11-18 15:12:58,242 INFO L608 BuchiCegarLoop]: Abstraction has 116 states and 150 transitions. [2018-11-18 15:12:58,242 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 15:12:58,242 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 150 transitions. [2018-11-18 15:12:58,243 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 78 [2018-11-18 15:12:58,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:12:58,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:12:58,244 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:12:58,244 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:12:58,244 INFO L794 eck$LassoCheckResult]: Stem: 376#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 44];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 77];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 101];#memory_int := #memory_int[#t~string6.base,3 + #t~string6.offset := 116];#memory_int := #memory_int[#t~string6.base,4 + #t~string6.offset := 104];#memory_int := #memory_int[#t~string6.base,5 + #t~string6.offset := 58];#memory_int := #memory_int[#t~string6.base,6 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 67];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 82];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 73];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 84];#memory_int := #memory_int[#t~string8.base,4 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 75];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 41];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(13);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 79];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 110];#memory_int := #memory_int[#t~string20.base,2 + #t~string20.offset := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,3 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 44];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 80];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 117];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 109];#memory_int := #memory_int[#t~string24.base,4 + #t~string24.offset := 112];#memory_int := #memory_int[#t~string24.base,5 + #t~string24.offset := 58];#memory_int := #memory_int[#t~string24.base,6 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 79];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 110];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,3 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 41];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 32];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 10];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(21);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(30);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(9);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(25);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 298#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 299#L923 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 342#L916 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 344#L931 main_#t~ret13 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 345#L281 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 371#L253 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 375#L49 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 320#L480-3 [2018-11-18 15:12:58,244 INFO L796 eck$LassoCheckResult]: Loop: 320#L480-3 assume true; 321#L480-1 assume !false; 334#L481 assume test_~splverifierCounter~0 < 4; 366#L482 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 367#L490 assume !(0 != test_~tmp~5); 347#L490-2 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 370#L500 assume !(0 != test_~tmp___0~2); 296#L500-2 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 337#L510 assume 0 != test_~tmp___2~0; 311#L516-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret0;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 318#L410 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 315#L59 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 300#L307 assume !(0 != ~pumpRunning~0); 302#L307-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 303#L339 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 348#L331-1 assume { :end_inline_processEnvironment__wrappee__base } true; 291#L339-1 assume { :end_inline_processEnvironment } true; 356#L314-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;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; 363#L173 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 316#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 313#L70-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 314#L324 assume { :end_inline_timeShift } true; 320#L480-3 [2018-11-18 15:12:58,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:58,245 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 15:12:58,245 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:58,245 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:58,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:58,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:12:58,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:58,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:58,287 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:58,287 INFO L82 PathProgramCache]: Analyzing trace with hash -620436067, now seen corresponding path program 1 times [2018-11-18 15:12:58,287 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:58,288 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:58,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:58,288 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:12:58,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:12:58,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:12:58,315 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:12:58,315 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:12:58,315 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 15:12:58,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:12:58,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:12:58,316 INFO L87 Difference]: Start difference. First operand 116 states and 150 transitions. cyclomatic complexity: 36 Second operand 3 states. [2018-11-18 15:12:58,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:12:58,367 INFO L93 Difference]: Finished difference Result 182 states and 229 transitions. [2018-11-18 15:12:58,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:12:58,369 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 229 transitions. [2018-11-18 15:12:58,371 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 128 [2018-11-18 15:12:58,372 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 182 states and 229 transitions. [2018-11-18 15:12:58,373 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 182 [2018-11-18 15:12:58,373 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 182 [2018-11-18 15:12:58,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 229 transitions. [2018-11-18 15:12:58,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 15:12:58,374 INFO L705 BuchiCegarLoop]: Abstraction has 182 states and 229 transitions. [2018-11-18 15:12:58,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 229 transitions. [2018-11-18 15:12:58,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2018-11-18 15:12:58,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-11-18 15:12:58,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 229 transitions. [2018-11-18 15:12:58,384 INFO L728 BuchiCegarLoop]: Abstraction has 182 states and 229 transitions. [2018-11-18 15:12:58,384 INFO L608 BuchiCegarLoop]: Abstraction has 182 states and 229 transitions. [2018-11-18 15:12:58,384 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 15:12:58,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 182 states and 229 transitions. [2018-11-18 15:12:58,385 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 128 [2018-11-18 15:12:58,386 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:12:58,386 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:12:58,386 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:12:58,386 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:12:58,387 INFO L794 eck$LassoCheckResult]: Stem: 690#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 44];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 77];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 101];#memory_int := #memory_int[#t~string6.base,3 + #t~string6.offset := 116];#memory_int := #memory_int[#t~string6.base,4 + #t~string6.offset := 104];#memory_int := #memory_int[#t~string6.base,5 + #t~string6.offset := 58];#memory_int := #memory_int[#t~string6.base,6 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 67];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 82];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 73];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 84];#memory_int := #memory_int[#t~string8.base,4 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 75];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 41];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(13);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 79];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 110];#memory_int := #memory_int[#t~string20.base,2 + #t~string20.offset := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,3 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 44];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 80];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 117];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 109];#memory_int := #memory_int[#t~string24.base,4 + #t~string24.offset := 112];#memory_int := #memory_int[#t~string24.base,5 + #t~string24.offset := 58];#memory_int := #memory_int[#t~string24.base,6 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 79];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 110];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,3 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 41];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 32];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 10];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(21);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(30);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(9);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(25);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 603#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 604#L923 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 650#L916 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 652#L931 main_#t~ret13 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 653#L281 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 682#L253 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 687#L49 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 701#L480-3 [2018-11-18 15:12:58,387 INFO L796 eck$LassoCheckResult]: Loop: 701#L480-3 assume true; 732#L480-1 assume !false; 730#L481 assume test_~splverifierCounter~0 < 4; 728#L482 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 689#L490 assume !(0 != test_~tmp~5); 655#L490-2 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 680#L500 assume !(0 != test_~tmp___0~2); 600#L500-2 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 643#L510 assume 0 != test_~tmp___2~0; 615#L516-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret0;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 623#L410 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 620#L59 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 605#L307 assume !(0 != ~pumpRunning~0); 606#L307-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 607#L339 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 661#L181 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 579#L186 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 580#L459 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 703#L459-2 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 691#L465 processEnvironment_#t~ret14 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~2 := processEnvironment_#t~ret14;havoc processEnvironment_#t~ret14; 590#L343 assume !(0 != processEnvironment_~tmp~2);assume { :begin_inline_processEnvironment__wrappee__base } true; 592#L331 assume { :end_inline_processEnvironment__wrappee__base } true; 656#L339-1 assume { :end_inline_processEnvironment } true; 740#L314-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;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; 739#L173 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 737#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 734#L70-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 733#L324 assume { :end_inline_timeShift } true; 701#L480-3 [2018-11-18 15:12:58,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:58,387 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 15:12:58,387 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:58,387 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:58,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:58,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:12:58,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:58,418 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:58,418 INFO L82 PathProgramCache]: Analyzing trace with hash -676012027, now seen corresponding path program 1 times [2018-11-18 15:12:58,418 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:58,419 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:58,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:58,419 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:12:58,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:12:58,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:12:58,466 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:12:58,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:12:58,466 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 15:12:58,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:12:58,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:12:58,467 INFO L87 Difference]: Start difference. First operand 182 states and 229 transitions. cyclomatic complexity: 49 Second operand 5 states. [2018-11-18 15:12:58,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:12:58,657 INFO L93 Difference]: Finished difference Result 490 states and 606 transitions. [2018-11-18 15:12:58,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:12:58,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 490 states and 606 transitions. [2018-11-18 15:12:58,662 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 323 [2018-11-18 15:12:58,664 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 490 states to 490 states and 606 transitions. [2018-11-18 15:12:58,665 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 490 [2018-11-18 15:12:58,666 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 490 [2018-11-18 15:12:58,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 490 states and 606 transitions. [2018-11-18 15:12:58,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 15:12:58,668 INFO L705 BuchiCegarLoop]: Abstraction has 490 states and 606 transitions. [2018-11-18 15:12:58,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states and 606 transitions. [2018-11-18 15:12:58,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 354. [2018-11-18 15:12:58,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2018-11-18 15:12:58,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 437 transitions. [2018-11-18 15:12:58,686 INFO L728 BuchiCegarLoop]: Abstraction has 354 states and 437 transitions. [2018-11-18 15:12:58,686 INFO L608 BuchiCegarLoop]: Abstraction has 354 states and 437 transitions. [2018-11-18 15:12:58,686 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 15:12:58,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 354 states and 437 transitions. [2018-11-18 15:12:58,688 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 254 [2018-11-18 15:12:58,688 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:12:58,688 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:12:58,688 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:12:58,689 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 15:12:58,689 INFO L794 eck$LassoCheckResult]: Stem: 1377#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 44];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 77];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 101];#memory_int := #memory_int[#t~string6.base,3 + #t~string6.offset := 116];#memory_int := #memory_int[#t~string6.base,4 + #t~string6.offset := 104];#memory_int := #memory_int[#t~string6.base,5 + #t~string6.offset := 58];#memory_int := #memory_int[#t~string6.base,6 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 67];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 82];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 73];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 84];#memory_int := #memory_int[#t~string8.base,4 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 75];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 41];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(13);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 79];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 110];#memory_int := #memory_int[#t~string20.base,2 + #t~string20.offset := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 102];#memory_int := #memory_int[#t~string22.base,3 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 44];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 80];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 117];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 109];#memory_int := #memory_int[#t~string24.base,4 + #t~string24.offset := 112];#memory_int := #memory_int[#t~string24.base,5 + #t~string24.offset := 58];#memory_int := #memory_int[#t~string24.base,6 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 79];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 110];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 102];#memory_int := #memory_int[#t~string28.base,3 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 41];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 32];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 10];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(30);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(9);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(21);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(30);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(9);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(25);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1291#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 1292#L923 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1336#L916 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1338#L931 main_#t~ret13 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 1339#L281 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 1369#L253 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1373#L49 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1311#L480-3 [2018-11-18 15:12:58,691 INFO L796 eck$LassoCheckResult]: Loop: 1311#L480-3 assume true; 1312#L480-1 assume !false; 1398#L481 assume test_~splverifierCounter~0 < 4; 1399#L482 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 1615#L490 assume !(0 != test_~tmp~5); 1614#L490-2 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 1612#L500 assume !(0 != test_~tmp___0~2); 1404#L500-2 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 1329#L510 assume 0 != test_~tmp___2~0; 1302#L516-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret0;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1309#L410 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 1306#L59 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1293#L307 assume !(0 != ~pumpRunning~0); 1294#L307-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1295#L339 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1347#L181 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1267#L186 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 1268#L459 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 1389#L459-2 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1378#L465 processEnvironment_#t~ret14 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~2 := processEnvironment_#t~ret14;havoc processEnvironment_#t~ret14; 1278#L343 assume !(0 != processEnvironment_~tmp~2);assume { :begin_inline_processEnvironment__wrappee__base } true; 1280#L331 assume { :end_inline_processEnvironment__wrappee__base } true; 1342#L339-1 assume { :end_inline_processEnvironment } true; 1359#L314-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;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; 1360#L173 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 1307#L70 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1308#L410-1 __utac_acc__Specification5_spec__3_#t~ret2 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 1370#L74 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 1304#L70-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1305#L324 assume { :end_inline_timeShift } true; 1311#L480-3 [2018-11-18 15:12:58,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:58,691 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2018-11-18 15:12:58,691 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:58,691 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:58,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:58,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:12:58,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:58,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:58,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1126594336, now seen corresponding path program 1 times [2018-11-18 15:12:58,725 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:58,726 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:58,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:58,726 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:12:58,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:58,736 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:58,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1202515465, now seen corresponding path program 1 times [2018-11-18 15:12:58,737 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:58,737 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:58,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:58,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:12:58,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:58,904 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2018-11-18 15:13:45,296 WARN L180 SmtUtils]: Spent 46.31 s on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 15:13:57,519 WARN L180 SmtUtils]: Spent 12.22 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 15:13:57,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 03:13:57 BoogieIcfgContainer [2018-11-18 15:13:57,579 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 15:13:57,580 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:13:57,580 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:13:57,580 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:13:57,580 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:12:57" (3/4) ... [2018-11-18 15:13:57,583 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 15:13:57,626 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f6660883-25ca-46d1-86ae-f9d255fd0748/bin-2019/uautomizer/witness.graphml [2018-11-18 15:13:57,626 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:13:57,627 INFO L168 Benchmark]: Toolchain (without parser) took 60966.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 956.6 MB in the beginning and 903.0 MB in the end (delta: 53.6 MB). Peak memory consumption was 221.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:13:57,627 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:13:57,628 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -170.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:13:57,628 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:13:57,628 INFO L168 Benchmark]: Boogie Preprocessor took 24.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:13:57,628 INFO L168 Benchmark]: RCFGBuilder took 531.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:13:57,629 INFO L168 Benchmark]: BuchiAutomizer took 59957.53 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 32.5 MB). Free memory was 1.0 GB in the beginning and 903.0 MB in the end (delta: 145.5 MB). Peak memory consumption was 188.2 MB. Max. memory is 11.5 GB. [2018-11-18 15:13:57,629 INFO L168 Benchmark]: Witness Printer took 46.59 ms. Allocated memory is still 1.2 GB. Free memory is still 903.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:13:57,630 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 358.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -170.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 531.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 59957.53 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 32.5 MB). Free memory was 1.0 GB in the beginning and 903.0 MB in the end (delta: 145.5 MB). Peak memory consumption was 188.2 MB. Max. memory is 11.5 GB. * Witness Printer took 46.59 ms. Allocated memory is still 1.2 GB. Free memory is still 903.0 MB. 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 354 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 59.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 59.3s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 136 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 354 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 517 SDtfs, 1073 SDslu, 548 SDs, 0 SdLazy, 103 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 480]: 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, "OK"=29, retValue_acc=0, "__utac__get_this_arg"=0, "libacc.c"=0, "i > 0 && i <= this->argsCount"=17, methaneLevelCritical=0, "CRIT"=31, tmp___0=0, retValue_acc=1, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, tmp=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "i > 0 && i <= this->argsCount"=8, "__utac__get_this_argtype"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f046a9e=0, tmp___1=0, tmp=1, retValue_acc=0, "Env(Water:%i"=0, "CRIT"=0, ",Meth:"=0, "On"=26, "Off"=20, cleanupTimeShifts=4, switchedOnBeforeTS=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fe1bbca=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1affbd0e=155, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f6dcd44=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@593de5ab=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65d6da8=0, NULL=0, systemActive=1, waterLevel=1, "libacc.c"=34, \result=1, "\n"=0, ") "=0, "__utac__get_this_arg"=40, ")"=0, ")"=28, \result=0, "OK"=0, "libacc.c"=38, "__utac__get_this_arg"=0, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, "Env(Water:%i"=15, tmp___0=0, \result=1, retValue_acc=1, "Pump(System:"=27, head=0, pumpRunning=0, "libacc.c"=12, \result=0, "libacc.c"=37, tmp=1, retValue_acc=1, "__utac__get_this_argtype"=0, "Pump(System:"=0, \result=1, "__utac__get_this_argtype"=36, "__utac__get_this_arg"=33, "Off"=24, tmp=1, tmp___2=155, tmp___0=0, ") "=19, "On"=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6333b68e=0, splverifierCounter=0, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@210e5b88=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a813dde=0, ",Meth:"=11, "__utac__get_this_argtype"=35, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c038687=0, "i > 0 && i <= this->argsCount"=39, tmp=0, head=0, "On"=0, "Off"=0, ",Pump:"=23, ",Pump:"=0, "On"=0, "\n"=18, "Off"=0, "i > 0 && i <= this->argsCount"=16, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 480]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L150] FCALL "Env(Water:%i" [L151] FCALL ",Meth:" [L155] FCALL "CRIT" [L159] FCALL "OK" [L163] FCALL ")" [L419] FCALL "Pump(System:" [L423] FCALL "On" [L427] FCALL "Off" [L431] FCALL ",Pump:" [L435] FCALL "On" [L439] FCALL "Off" [L443] FCALL ") " [L445] FCALL "\n" [L832] FCALL "i > 0 && i <= this->argsCount" [L832] FCALL "libacc.c" [L833] FCALL "__utac__get_this_arg" [L839] FCALL "i > 0 && i <= this->argsCount" [L839] FCALL "libacc.c" [L840] FCALL "__utac__get_this_arg" [L878] FCALL "i > 0 && i <= this->argsCount" [L878] FCALL "libacc.c" [L879] FCALL "__utac__get_this_argtype" [L885] FCALL "i > 0 && i <= this->argsCount" [L885] FCALL "libacc.c" [L886] FCALL "__utac__get_this_argtype" [L43] int switchedOnBeforeTS ; [L98] int waterLevel = 1; [L99] int methaneLevelCritical = 0; [L192] int cleanupTimeShifts = 4; [L297] int pumpRunning = 0; [L298] int systemActive = 1; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L272] int retValue_acc ; [L273] int tmp ; [L277] FCALL select_helpers() [L278] FCALL select_features() [L279] CALL, EXPR valid_product() [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] RET return (retValue_acc); [L279] EXPR valid_product() [L279] tmp = valid_product() [L281] COND TRUE \read(tmp) [L283] FCALL setup() [L284] CALL runTest() [L262] CALL __utac_acc__Specification5_spec__1() [L48] RET switchedOnBeforeTS = 0 [L262] __utac_acc__Specification5_spec__1() [L263] CALL test() [L471] int splverifierCounter ; [L472] int tmp ; [L473] int tmp___0 ; [L474] int tmp___1 ; [L475] int tmp___2 ; [L478] splverifierCounter = 0 Loop: [L480] COND TRUE 1 [L482] COND TRUE splverifierCounter < 4 [L488] tmp = __VERIFIER_nondet_int() [L490] COND FALSE !(\read(tmp)) [L498] tmp___0 = __VERIFIER_nondet_int() [L500] COND FALSE !(\read(tmp___0)) [L508] tmp___2 = __VERIFIER_nondet_int() [L510] COND TRUE \read(tmp___2) [L523] CALL timeShift() [L305] CALL __utac_acc__Specification5_spec__2() [L57] CALL, EXPR isPumpRunning() [L406] int retValue_acc ; [L409] retValue_acc = pumpRunning [L410] RET return (retValue_acc); [L57] EXPR isPumpRunning() [L57] RET switchedOnBeforeTS = isPumpRunning() [L305] __utac_acc__Specification5_spec__2() [L307] COND FALSE !(\read(pumpRunning)) [L314] COND TRUE \read(systemActive) [L316] CALL processEnvironment() [L336] int tmp ; [L339] COND TRUE ! pumpRunning [L341] CALL, EXPR isHighWaterLevel() [L451] int retValue_acc ; [L452] int tmp ; [L453] int tmp___0 ; [L457] CALL, EXPR isHighWaterSensorDry() [L178] int retValue_acc ; [L181] COND TRUE waterLevel < 2 [L182] retValue_acc = 1 [L183] RET return (retValue_acc); [L457] EXPR isHighWaterSensorDry() [L457] tmp = isHighWaterSensorDry() [L459] COND TRUE \read(tmp) [L460] tmp___0 = 0 [L464] retValue_acc = tmp___0 [L465] RET return (retValue_acc); [L341] EXPR isHighWaterLevel() [L341] tmp = isHighWaterLevel() [L343] COND FALSE !(\read(tmp)) [L349] RET, FCALL processEnvironment__wrappee__base() [L316] processEnvironment() [L322] CALL __utac_acc__Specification5_spec__3() [L63] int tmp ; [L64] int tmp___0 ; [L68] CALL, EXPR getWaterLevel() [L169] int retValue_acc ; [L172] retValue_acc = waterLevel [L173] RET return (retValue_acc); [L68] EXPR getWaterLevel() [L68] tmp = getWaterLevel() [L70] COND TRUE tmp != 2 [L72] CALL, EXPR isPumpRunning() [L406] int retValue_acc ; [L409] retValue_acc = pumpRunning [L410] RET return (retValue_acc); [L72] EXPR isPumpRunning() [L72] tmp___0 = isPumpRunning() [L74] COND FALSE, RET !(\read(tmp___0)) [L322] RET __utac_acc__Specification5_spec__3() [L523] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...