./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product42_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_3f079136-6fe0-488e-9a2c-08aa83fae619/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3f079136-6fe0-488e-9a2c-08aa83fae619/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3f079136-6fe0-488e-9a2c-08aa83fae619/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3f079136-6fe0-488e-9a2c-08aa83fae619/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product42_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3f079136-6fe0-488e-9a2c-08aa83fae619/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3f079136-6fe0-488e-9a2c-08aa83fae619/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 532810884b5d2bf06b0b91e69513de04a1b641b8 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:16:22,279 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:16:22,281 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:16:22,287 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:16:22,287 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:16:22,288 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:16:22,289 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:16:22,290 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:16:22,291 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:16:22,292 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:16:22,293 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:16:22,293 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:16:22,293 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:16:22,295 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:16:22,295 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:16:22,296 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:16:22,297 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:16:22,298 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:16:22,300 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:16:22,301 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:16:22,302 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:16:22,303 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:16:22,305 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:16:22,305 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:16:22,305 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:16:22,305 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:16:22,307 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:16:22,307 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:16:22,308 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:16:22,308 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:16:22,309 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:16:22,309 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:16:22,309 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:16:22,309 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:16:22,310 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:16:22,311 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:16:22,311 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3f079136-6fe0-488e-9a2c-08aa83fae619/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 17:16:22,323 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:16:22,323 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:16:22,324 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 17:16:22,324 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 17:16:22,324 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 17:16:22,324 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 17:16:22,324 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 17:16:22,324 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 17:16:22,325 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 17:16:22,325 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 17:16:22,325 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 17:16:22,325 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:16:22,325 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:16:22,325 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 17:16:22,325 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:16:22,326 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:16:22,326 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:16:22,326 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 17:16:22,326 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 17:16:22,328 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 17:16:22,328 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:16:22,328 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:16:22,328 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 17:16:22,328 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:16:22,328 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 17:16:22,329 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:16:22,329 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:16:22,329 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 17:16:22,329 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:16:22,329 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 17:16:22,329 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 17:16:22,330 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 17:16:22,330 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_3f079136-6fe0-488e-9a2c-08aa83fae619/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 -> 532810884b5d2bf06b0b91e69513de04a1b641b8 [2018-11-18 17:16:22,353 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:16:22,362 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:16:22,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:16:22,365 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:16:22,366 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:16:22,366 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3f079136-6fe0-488e-9a2c-08aa83fae619/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product42_true-unreach-call_false-termination.cil.c [2018-11-18 17:16:22,407 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3f079136-6fe0-488e-9a2c-08aa83fae619/bin-2019/uautomizer/data/f223ac552/122e45bb3df74b41ac31f981cb2adaf5/FLAGdbd6c74d7 [2018-11-18 17:16:22,839 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:16:22,840 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3f079136-6fe0-488e-9a2c-08aa83fae619/sv-benchmarks/c/product-lines/minepump_spec5_product42_true-unreach-call_false-termination.cil.c [2018-11-18 17:16:22,850 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3f079136-6fe0-488e-9a2c-08aa83fae619/bin-2019/uautomizer/data/f223ac552/122e45bb3df74b41ac31f981cb2adaf5/FLAGdbd6c74d7 [2018-11-18 17:16:22,860 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3f079136-6fe0-488e-9a2c-08aa83fae619/bin-2019/uautomizer/data/f223ac552/122e45bb3df74b41ac31f981cb2adaf5 [2018-11-18 17:16:22,863 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:16:22,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:16:22,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:16:22,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:16:22,867 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:16:22,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:16:22" (1/1) ... [2018-11-18 17:16:22,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c3b532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:22, skipping insertion in model container [2018-11-18 17:16:22,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:16:22" (1/1) ... [2018-11-18 17:16:22,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:16:22,909 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:16:23,094 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:16:23,102 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:16:23,201 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:16:23,217 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:16:23,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:23 WrapperNode [2018-11-18 17:16:23,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:16:23,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:16:23,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:16:23,218 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:16:23,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:23" (1/1) ... [2018-11-18 17:16:23,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:23" (1/1) ... [2018-11-18 17:16:23,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:16:23,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:16:23,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:16:23,255 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:16:23,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:23" (1/1) ... [2018-11-18 17:16:23,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:23" (1/1) ... [2018-11-18 17:16:23,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:23" (1/1) ... [2018-11-18 17:16:23,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:23" (1/1) ... [2018-11-18 17:16:23,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:23" (1/1) ... [2018-11-18 17:16:23,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:23" (1/1) ... [2018-11-18 17:16:23,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:23" (1/1) ... [2018-11-18 17:16:23,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:16:23,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:16:23,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:16:23,278 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:16:23,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3f079136-6fe0-488e-9a2c-08aa83fae619/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 17:16:23,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:16:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:16:23,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:16:23,786 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:16:23,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:16:23 BoogieIcfgContainer [2018-11-18 17:16:23,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:16:23,787 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 17:16:23,787 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 17:16:23,789 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 17:16:23,789 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:16:23,790 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 05:16:22" (1/3) ... [2018-11-18 17:16:23,790 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@268f641d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 05:16:23, skipping insertion in model container [2018-11-18 17:16:23,790 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:16:23,790 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:23" (2/3) ... [2018-11-18 17:16:23,791 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@268f641d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 05:16:23, skipping insertion in model container [2018-11-18 17:16:23,791 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:16:23,791 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:16:23" (3/3) ... [2018-11-18 17:16:23,792 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product42_true-unreach-call_false-termination.cil.c [2018-11-18 17:16:23,829 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 17:16:23,830 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 17:16:23,830 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 17:16:23,830 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 17:16:23,830 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:16:23,830 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:16:23,830 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 17:16:23,831 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:16:23,831 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 17:16:23,842 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 130 states. [2018-11-18 17:16:23,861 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2018-11-18 17:16:23,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:16:23,861 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:16:23,868 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:23,868 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] [2018-11-18 17:16:23,868 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 17:16:23,868 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 130 states. [2018-11-18 17:16:23,873 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2018-11-18 17:16:23,873 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:16:23,873 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:16:23,874 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:23,874 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] [2018-11-18 17:16:23,878 INFO L794 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string23.base, #t~string23.offset := #Ultimate.alloc(30);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(9);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(21);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(30);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(9);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(21);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(25);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(30);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(9);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(25);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(13);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 44];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 77];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 101];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 116];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 104];#memory_int := #memory_int[#t~string43.base,5 + #t~string43.offset := 58];#memory_int := #memory_int[#t~string43.base,6 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 67];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 82];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 73];#memory_int := #memory_int[#t~string45.base,3 + #t~string45.offset := 84];#memory_int := #memory_int[#t~string45.base,4 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 75];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 41];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(13);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 79];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 110];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 44];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 80];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 117];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 109];#memory_int := #memory_int[#t~string64.base,4 + #t~string64.offset := 112];#memory_int := #memory_int[#t~string64.base,5 + #t~string64.offset := 58];#memory_int := #memory_int[#t~string64.base,6 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 79];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 110];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 79];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 102];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 102];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 41];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 32];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 10];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 0];~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret3, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 123#L228true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 46#L221true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 132#L236true main_#t~ret3 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret3;havoc main_#t~ret3; 32#L183true assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 41#L155true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 113#L49true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 75#L716-3true [2018-11-18 17:16:23,879 INFO L796 eck$LassoCheckResult]: Loop: 75#L716-3true assume true; 87#L716-1true assume !false; 21#L717true assume test_~splverifierCounter~0 < 4; 108#L718true test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 127#L726true assume !(0 != test_~tmp~5); 118#L726-2true test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 48#L736true assume !(0 != test_~tmp___0~1); 29#L736-2true test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 97#L746true assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet53;havoc test_#t~nondet53; 101#L754true assume 0 != test_~tmp___1~0; 105#L754-2true 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~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 5#L888true __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; 20#L59true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 82#L785true assume !(0 != ~pumpRunning~0); 84#L785-2true assume !(0 != ~systemActive~0); 125#L792-1true 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~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 62#L686true __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; 22#L70true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 18#L70-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 43#L802true assume { :end_inline_timeShift } true; 75#L716-3true [2018-11-18 17:16:23,883 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:23,884 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 17:16:23,885 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:23,886 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:23,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:23,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:23,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:24,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:24,038 INFO L82 PathProgramCache]: Analyzing trace with hash -33799396, now seen corresponding path program 1 times [2018-11-18 17:16:24,038 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:24,038 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:24,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:24,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:24,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:24,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:24,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1338726277, now seen corresponding path program 1 times [2018-11-18 17:16:24,052 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:24,052 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:24,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:24,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:24,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:24,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:24,187 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 17:16:24,189 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:16:24,190 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:16:24,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:16:24,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:16:24,297 INFO L87 Difference]: Start difference. First operand 130 states. Second operand 6 states. [2018-11-18 17:16:24,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:16:24,436 INFO L93 Difference]: Finished difference Result 127 states and 161 transitions. [2018-11-18 17:16:24,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 17:16:24,438 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 127 states and 161 transitions. [2018-11-18 17:16:24,440 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2018-11-18 17:16:24,443 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 127 states to 117 states and 151 transitions. [2018-11-18 17:16:24,444 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 117 [2018-11-18 17:16:24,445 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 117 [2018-11-18 17:16:24,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 117 states and 151 transitions. [2018-11-18 17:16:24,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:16:24,445 INFO L705 BuchiCegarLoop]: Abstraction has 117 states and 151 transitions. [2018-11-18 17:16:24,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states and 151 transitions. [2018-11-18 17:16:24,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2018-11-18 17:16:24,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-11-18 17:16:24,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 151 transitions. [2018-11-18 17:16:24,475 INFO L728 BuchiCegarLoop]: Abstraction has 117 states and 151 transitions. [2018-11-18 17:16:24,476 INFO L608 BuchiCegarLoop]: Abstraction has 117 states and 151 transitions. [2018-11-18 17:16:24,476 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 17:16:24,476 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states and 151 transitions. [2018-11-18 17:16:24,477 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2018-11-18 17:16:24,477 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:16:24,477 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:16:24,477 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:24,478 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] [2018-11-18 17:16:24,478 INFO L794 eck$LassoCheckResult]: Stem: 382#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string23.base, #t~string23.offset := #Ultimate.alloc(30);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(9);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(21);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(30);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(9);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(21);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(25);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(30);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(9);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(25);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(13);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 44];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 77];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 101];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 116];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 104];#memory_int := #memory_int[#t~string43.base,5 + #t~string43.offset := 58];#memory_int := #memory_int[#t~string43.base,6 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 67];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 82];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 73];#memory_int := #memory_int[#t~string45.base,3 + #t~string45.offset := 84];#memory_int := #memory_int[#t~string45.base,4 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 75];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 41];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(13);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 79];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 110];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 44];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 80];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 117];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 109];#memory_int := #memory_int[#t~string64.base,4 + #t~string64.offset := 112];#memory_int := #memory_int[#t~string64.base,5 + #t~string64.offset := 58];#memory_int := #memory_int[#t~string64.base,6 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 79];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 110];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 79];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 102];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 102];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 41];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 32];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 10];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 0];~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 293#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret3, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 294#L228 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 335#L221 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 336#L236 main_#t~ret3 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret3;havoc main_#t~ret3; 317#L183 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 318#L155 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 331#L49 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 333#L716-3 [2018-11-18 17:16:24,478 INFO L796 eck$LassoCheckResult]: Loop: 333#L716-3 assume true; 366#L716-1 assume !false; 307#L717 assume test_~splverifierCounter~0 < 4; 308#L718 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 386#L726 assume !(0 != test_~tmp~5); 296#L726-2 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 338#L736 assume !(0 != test_~tmp___0~1); 313#L736-2 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 314#L746 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 380#L952 assume { :end_inline_startSystem } true; 384#L754-2 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~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 279#L888 __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; 280#L59 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 306#L785 assume !(0 != ~pumpRunning~0); 372#L785-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 373#L817 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 383#L809-1 assume { :end_inline_processEnvironment__wrappee__base } true; 341#L817-1 assume { :end_inline_processEnvironment } true; 391#L792-1 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~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 354#L686 __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; 309#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 302#L70-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 303#L802 assume { :end_inline_timeShift } true; 333#L716-3 [2018-11-18 17:16:24,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:24,478 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 17:16:24,479 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:24,479 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:24,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:24,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:24,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:24,519 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:24,519 INFO L82 PathProgramCache]: Analyzing trace with hash 315717537, now seen corresponding path program 1 times [2018-11-18 17:16:24,519 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:24,519 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:24,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:24,520 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:16:24,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:24,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:24,536 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 17:16:24,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:16:24,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:16:24,536 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 17:16:24,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:16:24,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:16:24,537 INFO L87 Difference]: Start difference. First operand 117 states and 151 transitions. cyclomatic complexity: 36 Second operand 3 states. [2018-11-18 17:16:24,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:16:24,580 INFO L93 Difference]: Finished difference Result 184 states and 231 transitions. [2018-11-18 17:16:24,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:16:24,581 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 231 transitions. [2018-11-18 17:16:24,583 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2018-11-18 17:16:24,585 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 184 states and 231 transitions. [2018-11-18 17:16:24,586 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184 [2018-11-18 17:16:24,586 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2018-11-18 17:16:24,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 231 transitions. [2018-11-18 17:16:24,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:16:24,587 INFO L705 BuchiCegarLoop]: Abstraction has 184 states and 231 transitions. [2018-11-18 17:16:24,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 231 transitions. [2018-11-18 17:16:24,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2018-11-18 17:16:24,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2018-11-18 17:16:24,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 231 transitions. [2018-11-18 17:16:24,594 INFO L728 BuchiCegarLoop]: Abstraction has 184 states and 231 transitions. [2018-11-18 17:16:24,594 INFO L608 BuchiCegarLoop]: Abstraction has 184 states and 231 transitions. [2018-11-18 17:16:24,594 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 17:16:24,594 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 231 transitions. [2018-11-18 17:16:24,596 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2018-11-18 17:16:24,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:16:24,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:16:24,597 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:24,597 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] [2018-11-18 17:16:24,597 INFO L794 eck$LassoCheckResult]: Stem: 697#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string23.base, #t~string23.offset := #Ultimate.alloc(30);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(9);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(21);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(30);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(9);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(21);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(25);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(30);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(9);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(25);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(13);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 44];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 77];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 101];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 116];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 104];#memory_int := #memory_int[#t~string43.base,5 + #t~string43.offset := 58];#memory_int := #memory_int[#t~string43.base,6 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 67];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 82];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 73];#memory_int := #memory_int[#t~string45.base,3 + #t~string45.offset := 84];#memory_int := #memory_int[#t~string45.base,4 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 75];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 41];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(13);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 79];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 110];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 44];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 80];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 117];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 109];#memory_int := #memory_int[#t~string64.base,4 + #t~string64.offset := 112];#memory_int := #memory_int[#t~string64.base,5 + #t~string64.offset := 58];#memory_int := #memory_int[#t~string64.base,6 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 79];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 110];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 79];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 102];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 102];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 41];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 32];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 10];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 0];~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 600#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret3, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 601#L228 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 643#L221 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 644#L236 main_#t~ret3 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret3;havoc main_#t~ret3; 625#L183 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 626#L155 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 639#L49 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 641#L716-3 [2018-11-18 17:16:24,597 INFO L796 eck$LassoCheckResult]: Loop: 641#L716-3 assume true; 678#L716-1 assume !false; 614#L717 assume test_~splverifierCounter~0 < 4; 615#L718 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 703#L726 assume !(0 != test_~tmp~5); 603#L726-2 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 646#L736 assume !(0 != test_~tmp___0~1); 621#L736-2 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 622#L746 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 695#L952 assume { :end_inline_startSystem } true; 700#L754-2 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~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 586#L888 __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; 587#L59 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 613#L785 assume !(0 != ~pumpRunning~0); 685#L785-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 687#L817 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret73, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 688#L694 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 689#L699 isHighWaterLevel_#t~ret73 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret73;havoc isHighWaterLevel_#t~ret73; 619#L937 assume !(0 != isHighWaterLevel_~tmp~8);isHighWaterLevel_~tmp___0~2 := 1; 620#L937-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 605#L943 processEnvironment_#t~ret54 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~6 := processEnvironment_#t~ret54;havoc processEnvironment_#t~ret54; 606#L821 assume !(0 != processEnvironment_~tmp~6);assume { :begin_inline_processEnvironment__wrappee__base } true; 672#L809 assume { :end_inline_processEnvironment__wrappee__base } true; 649#L817-1 assume { :end_inline_processEnvironment } true; 709#L792-1 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~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 663#L686 __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; 616#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 609#L70-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 610#L802 assume { :end_inline_timeShift } true; 641#L716-3 [2018-11-18 17:16:24,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:24,598 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 17:16:24,598 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:24,598 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:24,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:24,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:24,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:24,627 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:24,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1429542219, now seen corresponding path program 1 times [2018-11-18 17:16:24,628 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:24,628 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:24,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:24,629 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:16:24,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:24,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:24,655 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 17:16:24,655 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:16:24,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 17:16:24,655 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 17:16:24,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 17:16:24,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 17:16:24,656 INFO L87 Difference]: Start difference. First operand 184 states and 231 transitions. cyclomatic complexity: 49 Second operand 4 states. [2018-11-18 17:16:24,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:16:24,726 INFO L93 Difference]: Finished difference Result 357 states and 445 transitions. [2018-11-18 17:16:24,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 17:16:24,727 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 357 states and 445 transitions. [2018-11-18 17:16:24,730 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 258 [2018-11-18 17:16:24,733 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 357 states to 357 states and 445 transitions. [2018-11-18 17:16:24,733 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 357 [2018-11-18 17:16:24,734 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 357 [2018-11-18 17:16:24,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 357 states and 445 transitions. [2018-11-18 17:16:24,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:16:24,735 INFO L705 BuchiCegarLoop]: Abstraction has 357 states and 445 transitions. [2018-11-18 17:16:24,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states and 445 transitions. [2018-11-18 17:16:24,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 190. [2018-11-18 17:16:24,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2018-11-18 17:16:24,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 237 transitions. [2018-11-18 17:16:24,747 INFO L728 BuchiCegarLoop]: Abstraction has 190 states and 237 transitions. [2018-11-18 17:16:24,747 INFO L608 BuchiCegarLoop]: Abstraction has 190 states and 237 transitions. [2018-11-18 17:16:24,747 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 17:16:24,747 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 190 states and 237 transitions. [2018-11-18 17:16:24,749 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 134 [2018-11-18 17:16:24,749 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:16:24,749 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:16:24,750 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:24,750 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] [2018-11-18 17:16:24,750 INFO L794 eck$LassoCheckResult]: Stem: 1253#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string23.base, #t~string23.offset := #Ultimate.alloc(30);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(9);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(21);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(30);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(9);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(21);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(25);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(30);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(9);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(25);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(13);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 44];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 77];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 101];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 116];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 104];#memory_int := #memory_int[#t~string43.base,5 + #t~string43.offset := 58];#memory_int := #memory_int[#t~string43.base,6 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 67];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 82];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 73];#memory_int := #memory_int[#t~string45.base,3 + #t~string45.offset := 84];#memory_int := #memory_int[#t~string45.base,4 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 75];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 41];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(13);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 79];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 110];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 44];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 80];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 117];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 109];#memory_int := #memory_int[#t~string64.base,4 + #t~string64.offset := 112];#memory_int := #memory_int[#t~string64.base,5 + #t~string64.offset := 58];#memory_int := #memory_int[#t~string64.base,6 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 79];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 110];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 79];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 102];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 102];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 41];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 32];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 10];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 0];~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1151#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret3, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 1152#L228 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1194#L221 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 1195#L236 main_#t~ret3 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret3;havoc main_#t~ret3; 1176#L183 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 1177#L155 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1190#L49 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1192#L716-3 [2018-11-18 17:16:24,750 INFO L796 eck$LassoCheckResult]: Loop: 1192#L716-3 assume true; 1232#L716-1 assume !false; 1166#L717 assume test_~splverifierCounter~0 < 4; 1167#L718 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 1291#L726 assume !(0 != test_~tmp~5); 1288#L726-2 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 1285#L736 assume !(0 != test_~tmp___0~1); 1282#L736-2 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 1280#L746 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1277#L952 assume { :end_inline_startSystem } true; 1276#L754-2 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~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 1275#L888 __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; 1164#L59 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1165#L785 assume !(0 != ~pumpRunning~0); 1238#L785-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1240#L817 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret73, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1241#L694 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1242#L699 isHighWaterLevel_#t~ret73 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret73;havoc isHighWaterLevel_#t~ret73; 1170#L937 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 1171#L937-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 1156#L943 processEnvironment_#t~ret54 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~6 := processEnvironment_#t~ret54;havoc processEnvironment_#t~ret54; 1157#L821 assume !(0 != processEnvironment_~tmp~6);assume { :begin_inline_processEnvironment__wrappee__base } true; 1223#L809 assume { :end_inline_processEnvironment__wrappee__base } true; 1200#L817-1 assume { :end_inline_processEnvironment } true; 1267#L792-1 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~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 1214#L686 __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; 1168#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 1160#L70-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1161#L802 assume { :end_inline_timeShift } true; 1192#L716-3 [2018-11-18 17:16:24,751 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:24,751 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2018-11-18 17:16:24,751 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:24,751 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:24,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:24,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:24,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:24,792 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:24,792 INFO L82 PathProgramCache]: Analyzing trace with hash 728477641, now seen corresponding path program 1 times [2018-11-18 17:16:24,792 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:24,792 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:24,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:24,793 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:16:24,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:24,865 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 17:16:24,865 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:16:24,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:16:24,866 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 17:16:24,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 17:16:24,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:16:24,866 INFO L87 Difference]: Start difference. First operand 190 states and 237 transitions. cyclomatic complexity: 49 Second operand 5 states. [2018-11-18 17:16:25,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:16:25,092 INFO L93 Difference]: Finished difference Result 769 states and 954 transitions. [2018-11-18 17:16:25,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 17:16:25,093 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 769 states and 954 transitions. [2018-11-18 17:16:25,098 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 537 [2018-11-18 17:16:25,102 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 769 states to 769 states and 954 transitions. [2018-11-18 17:16:25,102 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 769 [2018-11-18 17:16:25,103 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 769 [2018-11-18 17:16:25,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 769 states and 954 transitions. [2018-11-18 17:16:25,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:16:25,105 INFO L705 BuchiCegarLoop]: Abstraction has 769 states and 954 transitions. [2018-11-18 17:16:25,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states and 954 transitions. [2018-11-18 17:16:25,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 363. [2018-11-18 17:16:25,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2018-11-18 17:16:25,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 448 transitions. [2018-11-18 17:16:25,119 INFO L728 BuchiCegarLoop]: Abstraction has 363 states and 448 transitions. [2018-11-18 17:16:25,119 INFO L608 BuchiCegarLoop]: Abstraction has 363 states and 448 transitions. [2018-11-18 17:16:25,119 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 17:16:25,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 363 states and 448 transitions. [2018-11-18 17:16:25,121 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 262 [2018-11-18 17:16:25,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:16:25,123 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:16:25,123 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:25,123 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:25,124 INFO L794 eck$LassoCheckResult]: Stem: 2241#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string23.base, #t~string23.offset := #Ultimate.alloc(30);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(9);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(21);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(30);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(9);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(21);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(25);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(30);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(9);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(25);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(13);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 44];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 77];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 101];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 116];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 104];#memory_int := #memory_int[#t~string43.base,5 + #t~string43.offset := 58];#memory_int := #memory_int[#t~string43.base,6 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 67];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 82];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 73];#memory_int := #memory_int[#t~string45.base,3 + #t~string45.offset := 84];#memory_int := #memory_int[#t~string45.base,4 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 75];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 41];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(13);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 79];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 110];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 44];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 80];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 117];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 109];#memory_int := #memory_int[#t~string64.base,4 + #t~string64.offset := 112];#memory_int := #memory_int[#t~string64.base,5 + #t~string64.offset := 58];#memory_int := #memory_int[#t~string64.base,6 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 79];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 110];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 79];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 102];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 102];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 41];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 32];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 10];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 0];~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 2129#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret3, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 2130#L228 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2173#L221 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 2174#L236 main_#t~ret3 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret3;havoc main_#t~ret3; 2154#L183 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 2155#L155 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2169#L49 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2253#L716-3 [2018-11-18 17:16:25,124 INFO L796 eck$LassoCheckResult]: Loop: 2253#L716-3 assume true; 2232#L716-1 assume !false; 2143#L717 assume test_~splverifierCounter~0 < 4; 2144#L718 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 2444#L726 assume !(0 != test_~tmp~5); 2442#L726-2 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 2440#L736 assume !(0 != test_~tmp___0~1); 2438#L736-2 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 2437#L746 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2435#L952 assume { :end_inline_startSystem } true; 2434#L754-2 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~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 2433#L888 __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; 2432#L59 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2224#L785 assume !(0 != ~pumpRunning~0); 2225#L785-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 2228#L817 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret73, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 2418#L694 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 2230#L699 isHighWaterLevel_#t~ret73 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret73;havoc isHighWaterLevel_#t~ret73; 2148#L937 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 2149#L937-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 2134#L943 processEnvironment_#t~ret54 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~6 := processEnvironment_#t~ret54;havoc processEnvironment_#t~ret54; 2135#L821 assume !(0 != processEnvironment_~tmp~6);assume { :begin_inline_processEnvironment__wrappee__base } true; 2209#L809 assume { :end_inline_processEnvironment__wrappee__base } true; 2180#L817-1 assume { :end_inline_processEnvironment } true; 2258#L792-1 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~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 2197#L686 __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; 2145#L70 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 2146#L888-1 __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; 2423#L74 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 2421#L70-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2420#L802 assume { :end_inline_timeShift } true; 2253#L716-3 [2018-11-18 17:16:25,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:25,124 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2018-11-18 17:16:25,124 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:25,124 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:25,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:25,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:25,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:25,155 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:25,156 INFO L82 PathProgramCache]: Analyzing trace with hash -31754268, now seen corresponding path program 1 times [2018-11-18 17:16:25,156 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:25,156 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:25,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:25,157 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:16:25,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:25,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:25,166 INFO L82 PathProgramCache]: Analyzing trace with hash -843794469, now seen corresponding path program 1 times [2018-11-18 17:16:25,167 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:25,167 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:25,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:25,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:25,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:25,325 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2018-11-18 17:17:11,742 WARN L180 SmtUtils]: Spent 46.38 s on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 17:17:41,606 WARN L180 SmtUtils]: Spent 29.86 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 17:17:41,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 05:17:41 BoogieIcfgContainer [2018-11-18 17:17:41,671 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 17:17:41,672 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:17:41,672 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:17:41,672 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:17:41,672 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:16:23" (3/4) ... [2018-11-18 17:17:41,674 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 17:17:41,723 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3f079136-6fe0-488e-9a2c-08aa83fae619/bin-2019/uautomizer/witness.graphml [2018-11-18 17:17:41,723 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:17:41,723 INFO L168 Benchmark]: Toolchain (without parser) took 78860.42 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 278.9 MB). Free memory was 955.4 MB in the beginning and 1.2 GB in the end (delta: -208.8 MB). Peak memory consumption was 70.1 MB. Max. memory is 11.5 GB. [2018-11-18 17:17:41,724 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:17:41,724 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 955.4 MB in the beginning and 1.2 GB in the end (delta: -206.0 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-18 17:17:41,725 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-18 17:17:41,725 INFO L168 Benchmark]: Boogie Preprocessor took 22.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-18 17:17:41,725 INFO L168 Benchmark]: RCFGBuilder took 508.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 62.8 MB). Peak memory consumption was 62.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:17:41,725 INFO L168 Benchmark]: BuchiAutomizer took 77884.77 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 99.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -78.7 MB). Peak memory consumption was 298.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:17:41,726 INFO L168 Benchmark]: Witness Printer took 51.17 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:17:41,731 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 353.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 955.4 MB in the beginning and 1.2 GB in the end (delta: -206.0 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 508.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 62.8 MB). Peak memory consumption was 62.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 77884.77 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 99.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -78.7 MB). Peak memory consumption was 298.7 MB. Max. memory is 11.5 GB. * Witness Printer took 51.17 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 363 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 77.8s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 77.1s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 573 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 363 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 722 SDtfs, 1524 SDslu, 1053 SDs, 0 SdLazy, 162 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 716]: 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, ",Pump:"=0, "Off"=0, "OK"=0, retValue_acc=0, "Env(Water:%i"=0, "CRIT"=0, "On"=0, ",Meth:"=0, "\n"=40, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1eb2f435=0, ",Pump:"=17, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c589777=161, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64b8638b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42e2cd44=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72ed7aaf=0, "__utac__get_this_argtype"=22, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@544d5e6c=0, tmp=0, "Env(Water:%i"=37, "Off"=0, "libacc.c"=24, "On"=0, "Off"=8, tmp___1=0, tmp=1, "i > 0 && i <= this->argsCount"=12, "__utac__get_this_arg"=27, "libacc.c"=20, retValue_acc=0, cleanupTimeShifts=4, "__utac__get_this_argtype"=23, switchedOnBeforeTS=0, "__utac__get_this_arg"=16, "CRIT"=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76b1505a=0, \result=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, NULL=0, systemActive=1, waterLevel=1, \result=1, "i > 0 && i <= this->argsCount"=0, "Pump(System:"=33, ")"=0, \result=0, "OK"=35, "On"=31, "Pump(System:"=0, tmp___0=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, ")"=34, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21b7f6c0=0, "libacc.c"=0, "On"=28, tmp=1, ") "=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=15, \result=1, "\n"=0, retValue_acc=0, retValue_acc=1, tmp=1, retValue_acc=1, tmp___2=161, tmp___0=0, "i > 0 && i <= this->argsCount"=18, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e9a8216=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a5cb7bb=0, ") "=39, head=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_arg"=0, "libacc.c"=14, "libacc.c"=0, tmp=0, "libacc.c"=19, "i > 0 && i <= this->argsCount"=26, "__utac__get_this_argtype"=0, ",Meth:"=36, "Off"=29} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 716]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L538] FCALL "i > 0 && i <= this->argsCount" [L538] FCALL "libacc.c" [L539] FCALL "__utac__get_this_arg" [L545] FCALL "i > 0 && i <= this->argsCount" [L545] FCALL "libacc.c" [L546] FCALL "__utac__get_this_arg" [L584] FCALL "i > 0 && i <= this->argsCount" [L584] FCALL "libacc.c" [L585] FCALL "__utac__get_this_argtype" [L591] FCALL "i > 0 && i <= this->argsCount" [L591] FCALL "libacc.c" [L592] FCALL "__utac__get_this_argtype" [L663] FCALL "Env(Water:%i" [L664] FCALL ",Meth:" [L668] FCALL "CRIT" [L672] FCALL "OK" [L676] FCALL ")" [L897] FCALL "Pump(System:" [L901] FCALL "On" [L905] FCALL "Off" [L909] FCALL ",Pump:" [L913] FCALL "On" [L917] FCALL "Off" [L921] FCALL ") " [L923] FCALL "\n" [L43] int switchedOnBeforeTS ; [L92] int cleanupTimeShifts = 4; [L611] int waterLevel = 1; [L612] int methaneLevelCritical = 0; [L775] int pumpRunning = 0; [L776] int systemActive = 1; [L410] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L174] int retValue_acc ; [L175] int tmp ; [L179] FCALL select_helpers() [L180] FCALL select_features() [L181] CALL, EXPR valid_product() [L232] int retValue_acc ; [L235] retValue_acc = 1 [L236] RET return (retValue_acc); [L181] EXPR valid_product() [L181] tmp = valid_product() [L183] COND TRUE \read(tmp) [L185] FCALL setup() [L186] CALL runTest() [L164] CALL __utac_acc__Specification5_spec__1() [L48] RET switchedOnBeforeTS = 0 [L164] __utac_acc__Specification5_spec__1() [L165] CALL test() [L707] int splverifierCounter ; [L708] int tmp ; [L709] int tmp___0 ; [L710] int tmp___1 ; [L711] int tmp___2 ; [L714] splverifierCounter = 0 Loop: [L716] COND TRUE 1 [L718] COND TRUE splverifierCounter < 4 [L724] tmp = __VERIFIER_nondet_int() [L726] COND FALSE !(\read(tmp)) [L734] tmp___0 = __VERIFIER_nondet_int() [L736] COND FALSE !(\read(tmp___0)) [L744] tmp___2 = __VERIFIER_nondet_int() [L746] COND TRUE \read(tmp___2) [L748] CALL startSystem() [L951] RET systemActive = 1 [L748] startSystem() [L761] CALL timeShift() [L783] CALL __utac_acc__Specification5_spec__2() [L57] CALL, EXPR isPumpRunning() [L884] int retValue_acc ; [L887] retValue_acc = pumpRunning [L888] RET return (retValue_acc); [L57] EXPR isPumpRunning() [L57] RET switchedOnBeforeTS = isPumpRunning() [L783] __utac_acc__Specification5_spec__2() [L785] COND FALSE !(\read(pumpRunning)) [L792] COND TRUE \read(systemActive) [L794] CALL processEnvironment() [L814] int tmp ; [L817] COND TRUE ! pumpRunning [L819] CALL, EXPR isHighWaterLevel() [L929] int retValue_acc ; [L930] int tmp ; [L931] int tmp___0 ; [L935] CALL, EXPR isHighWaterSensorDry() [L691] int retValue_acc ; [L694] COND TRUE waterLevel < 2 [L695] retValue_acc = 1 [L696] RET return (retValue_acc); [L935] EXPR isHighWaterSensorDry() [L935] tmp = isHighWaterSensorDry() [L937] COND TRUE \read(tmp) [L938] tmp___0 = 0 [L942] retValue_acc = tmp___0 [L943] RET return (retValue_acc); [L819] EXPR isHighWaterLevel() [L819] tmp = isHighWaterLevel() [L821] COND FALSE !(\read(tmp)) [L827] RET, FCALL processEnvironment__wrappee__base() [L794] processEnvironment() [L800] CALL __utac_acc__Specification5_spec__3() [L63] int tmp ; [L64] int tmp___0 ; [L68] CALL, EXPR getWaterLevel() [L682] int retValue_acc ; [L685] retValue_acc = waterLevel [L686] RET return (retValue_acc); [L68] EXPR getWaterLevel() [L68] tmp = getWaterLevel() [L70] COND TRUE tmp != 2 [L72] CALL, EXPR isPumpRunning() [L884] int retValue_acc ; [L887] retValue_acc = pumpRunning [L888] RET return (retValue_acc); [L72] EXPR isPumpRunning() [L72] tmp___0 = isPumpRunning() [L74] COND FALSE, RET !(\read(tmp___0)) [L800] RET __utac_acc__Specification5_spec__3() [L761] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...