./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product62_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_fe9806dd-095c-4b8d-bfa8-6917c82f9b22/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fe9806dd-095c-4b8d-bfa8-6917c82f9b22/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fe9806dd-095c-4b8d-bfa8-6917c82f9b22/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fe9806dd-095c-4b8d-bfa8-6917c82f9b22/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product62_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fe9806dd-095c-4b8d-bfa8-6917c82f9b22/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fe9806dd-095c-4b8d-bfa8-6917c82f9b22/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 23f993c1cfae7b9f66cc8c2fd252077854486eec ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:23:53,137 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:23:53,139 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:23:53,173 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:23:53,173 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:23:53,175 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:23:53,179 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:23:53,181 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:23:53,188 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:23:53,209 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:23:53,217 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:23:53,217 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:23:53,218 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:23:53,221 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:23:53,229 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:23:53,232 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:23:53,239 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:23:53,240 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:23:53,242 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:23:53,243 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:23:53,243 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:23:53,244 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:23:53,266 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:23:53,269 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:23:53,273 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:23:53,274 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:23:53,275 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:23:53,275 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:23:53,276 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:23:53,277 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:23:53,281 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:23:53,282 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:23:53,282 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:23:53,282 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:23:53,283 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:23:53,283 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:23:53,284 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fe9806dd-095c-4b8d-bfa8-6917c82f9b22/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 17:23:53,295 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:23:53,295 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:23:53,296 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 17:23:53,297 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 17:23:53,297 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 17:23:53,297 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 17:23:53,297 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 17:23:53,297 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 17:23:53,298 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 17:23:53,298 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 17:23:53,298 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 17:23:53,298 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:23:53,298 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:23:53,298 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 17:23:53,298 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:23:53,298 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:23:53,299 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:23:53,299 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 17:23:53,299 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 17:23:53,299 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 17:23:53,299 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:23:53,299 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:23:53,299 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 17:23:53,299 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:23:53,299 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 17:23:53,300 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:23:53,300 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:23:53,300 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 17:23:53,300 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:23:53,300 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 17:23:53,300 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 17:23:53,303 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 17:23:53,304 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_fe9806dd-095c-4b8d-bfa8-6917c82f9b22/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 -> 23f993c1cfae7b9f66cc8c2fd252077854486eec [2018-11-18 17:23:53,351 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:23:53,372 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:23:53,375 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:23:53,376 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:23:53,376 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:23:53,389 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fe9806dd-095c-4b8d-bfa8-6917c82f9b22/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product62_true-unreach-call_false-termination.cil.c [2018-11-18 17:23:53,484 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fe9806dd-095c-4b8d-bfa8-6917c82f9b22/bin-2019/uautomizer/data/7be166a7b/931d91b5e53c4286bcf4d2157caf0ab8/FLAG683e1e116 [2018-11-18 17:23:53,946 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:23:53,946 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fe9806dd-095c-4b8d-bfa8-6917c82f9b22/sv-benchmarks/c/product-lines/minepump_spec2_product62_true-unreach-call_false-termination.cil.c [2018-11-18 17:23:53,957 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fe9806dd-095c-4b8d-bfa8-6917c82f9b22/bin-2019/uautomizer/data/7be166a7b/931d91b5e53c4286bcf4d2157caf0ab8/FLAG683e1e116 [2018-11-18 17:23:54,284 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fe9806dd-095c-4b8d-bfa8-6917c82f9b22/bin-2019/uautomizer/data/7be166a7b/931d91b5e53c4286bcf4d2157caf0ab8 [2018-11-18 17:23:54,288 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:23:54,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:23:54,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:23:54,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:23:54,296 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:23:54,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:23:54" (1/1) ... [2018-11-18 17:23:54,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4afe988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:23:54, skipping insertion in model container [2018-11-18 17:23:54,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:23:54" (1/1) ... [2018-11-18 17:23:54,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:23:54,374 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:23:54,712 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:23:54,739 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:23:54,965 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:23:54,998 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:23:54,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:23:54 WrapperNode [2018-11-18 17:23:54,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:23:55,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:23:55,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:23:55,001 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:23:55,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:23:54" (1/1) ... [2018-11-18 17:23:55,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:23:54" (1/1) ... [2018-11-18 17:23:55,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:23:55,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:23:55,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:23:55,153 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:23:55,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:23:54" (1/1) ... [2018-11-18 17:23:55,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:23:54" (1/1) ... [2018-11-18 17:23:55,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:23:54" (1/1) ... [2018-11-18 17:23:55,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:23:54" (1/1) ... [2018-11-18 17:23:55,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:23:54" (1/1) ... [2018-11-18 17:23:55,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:23:54" (1/1) ... [2018-11-18 17:23:55,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:23:54" (1/1) ... [2018-11-18 17:23:55,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:23:55,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:23:55,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:23:55,271 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:23:55,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:23:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe9806dd-095c-4b8d-bfa8-6917c82f9b22/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 17:23:55,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:23:55,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:23:55,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:23:58,361 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:23:58,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:23:58 BoogieIcfgContainer [2018-11-18 17:23:58,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:23:58,362 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 17:23:58,362 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 17:23:58,365 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 17:23:58,366 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:23:58,366 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 05:23:54" (1/3) ... [2018-11-18 17:23:58,367 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7356b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 05:23:58, skipping insertion in model container [2018-11-18 17:23:58,367 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:23:58,367 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:23:54" (2/3) ... [2018-11-18 17:23:58,368 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7356b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 05:23:58, skipping insertion in model container [2018-11-18 17:23:58,368 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:23:58,368 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:23:58" (3/3) ... [2018-11-18 17:23:58,369 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product62_true-unreach-call_false-termination.cil.c [2018-11-18 17:23:58,414 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 17:23:58,415 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 17:23:58,415 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 17:23:58,415 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 17:23:58,415 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:23:58,415 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:23:58,415 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 17:23:58,415 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:23:58,416 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 17:23:58,435 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 325 states. [2018-11-18 17:23:58,468 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 213 [2018-11-18 17:23:58,469 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:23:58,469 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:23:58,477 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:23:58,477 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:23:58,477 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 17:23:58,477 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 325 states. [2018-11-18 17:23:58,486 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 213 [2018-11-18 17:23:58,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:23:58,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:23:58,488 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:23:58,488 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:23:58,493 INFO L794 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(13);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string41.base,#t~string41.offset := 44];#memory_int := #memory_int[#t~string41.base,1 + #t~string41.offset := 77];#memory_int := #memory_int[#t~string41.base,2 + #t~string41.offset := 101];#memory_int := #memory_int[#t~string41.base,3 + #t~string41.offset := 116];#memory_int := #memory_int[#t~string41.base,4 + #t~string41.offset := 104];#memory_int := #memory_int[#t~string41.base,5 + #t~string41.offset := 58];#memory_int := #memory_int[#t~string41.base,6 + #t~string41.offset := 0];call #t~string43.base, #t~string43.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 67];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 82];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 73];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 84];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 75];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 41];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 80];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 117];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 109];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 112];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 110];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 32];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 10];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 13#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;assume { :begin_inline_select_helpers } true; 21#L692true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 294#L685true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 206#L700true main_#t~ret35 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 275#L498true assume 0 != main_~tmp~3;assume { :begin_inline_setup } true; 203#L469true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 238#L529true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, 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; 226#L716-3true [2018-11-18 17:23:58,494 INFO L796 eck$LassoCheckResult]: Loop: 226#L716-3true assume true; 73#L716-1true assume !false; 202#L717true assume test_~splverifierCounter~0 < 4; 290#L718true test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 180#L726true assume !(0 != test_~tmp~5); 156#L726-2true test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 27#L736true assume !(0 != test_~tmp___0~1); 22#L736-2true test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 267#L746true assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet52;havoc test_#t~nondet52; 129#L754true assume 0 != test_~tmp___1~0; 135#L754-2true assume { :begin_inline_timeShift } true; 61#L782true assume !(0 != ~pumpRunning~0); 69#L782-2true assume !(0 != ~systemActive~0); 321#L789-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_#t~ret37, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 189#L610-5true __utac_acc__Specification2_spec__2_#t~ret36 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret36;havoc __utac_acc__Specification2_spec__2_#t~ret36; 236#L540true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 245#L540-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 222#L799true assume { :end_inline_timeShift } true; 226#L716-3true [2018-11-18 17:23:58,504 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:23:58,504 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 17:23:58,506 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:23:58,507 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:23:58,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:23:58,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:23:58,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:23:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:23:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:23:58,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:23:58,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1717604422, now seen corresponding path program 1 times [2018-11-18 17:23:58,762 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:23:58,762 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:23:58,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:23:58,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:23:58,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:23:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:23:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:23:58,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:23:58,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1238010467, now seen corresponding path program 1 times [2018-11-18 17:23:58,795 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:23:58,795 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:23:58,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:23:58,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:23:58,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:23:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:23:59,379 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2018-11-18 17:23:59,494 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 17:23:59,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:23:59,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:23:59,724 WARN L180 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2018-11-18 17:23:59,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:23:59,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:23:59,848 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 6 states. [2018-11-18 17:24:00,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:24:00,129 INFO L93 Difference]: Finished difference Result 322 states and 425 transitions. [2018-11-18 17:24:00,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 17:24:00,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 322 states and 425 transitions. [2018-11-18 17:24:00,137 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 209 [2018-11-18 17:24:00,144 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 322 states to 312 states and 415 transitions. [2018-11-18 17:24:00,145 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 312 [2018-11-18 17:24:00,146 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 312 [2018-11-18 17:24:00,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 312 states and 415 transitions. [2018-11-18 17:24:00,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:24:00,148 INFO L705 BuchiCegarLoop]: Abstraction has 312 states and 415 transitions. [2018-11-18 17:24:00,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states and 415 transitions. [2018-11-18 17:24:00,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2018-11-18 17:24:00,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2018-11-18 17:24:00,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 415 transitions. [2018-11-18 17:24:00,210 INFO L728 BuchiCegarLoop]: Abstraction has 312 states and 415 transitions. [2018-11-18 17:24:00,211 INFO L608 BuchiCegarLoop]: Abstraction has 312 states and 415 transitions. [2018-11-18 17:24:00,211 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 17:24:00,211 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 312 states and 415 transitions. [2018-11-18 17:24:00,217 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 209 [2018-11-18 17:24:00,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:24:00,217 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:24:00,218 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:24:00,218 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:24:00,218 INFO L794 eck$LassoCheckResult]: Stem: 863#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(13);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string41.base,#t~string41.offset := 44];#memory_int := #memory_int[#t~string41.base,1 + #t~string41.offset := 77];#memory_int := #memory_int[#t~string41.base,2 + #t~string41.offset := 101];#memory_int := #memory_int[#t~string41.base,3 + #t~string41.offset := 116];#memory_int := #memory_int[#t~string41.base,4 + #t~string41.offset := 104];#memory_int := #memory_int[#t~string41.base,5 + #t~string41.offset := 58];#memory_int := #memory_int[#t~string41.base,6 + #t~string41.offset := 0];call #t~string43.base, #t~string43.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 67];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 82];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 73];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 84];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 75];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 41];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 80];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 117];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 109];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 112];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 110];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 32];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 10];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 689#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;assume { :begin_inline_select_helpers } true; 690#L692 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 699#L685 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 943#L700 main_#t~ret35 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 944#L498 assume 0 != main_~tmp~3;assume { :begin_inline_setup } true; 939#L469 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 940#L529 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, 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; 953#L716-3 [2018-11-18 17:24:00,219 INFO L796 eck$LassoCheckResult]: Loop: 953#L716-3 assume true; 786#L716-1 assume !false; 787#L717 assume test_~splverifierCounter~0 < 4; 938#L718 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 917#L726 assume !(0 != test_~tmp~5); 890#L726-2 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 711#L736 assume !(0 != test_~tmp___0~1); 700#L736-2 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 701#L746 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet52;havoc test_#t~nondet52; 865#L754 assume 0 != test_~tmp___1~0; 866#L754-2 assume { :begin_inline_timeShift } true; 768#L782 assume !(0 != ~pumpRunning~0); 770#L782-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 780#L866 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret57, isMethaneAlarm_~retValue_acc~10;havoc isMethaneAlarm_~retValue_acc~10;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 669#L610 isMethaneAlarm_#t~ret57 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10 := isMethaneAlarm_#t~ret57;havoc isMethaneAlarm_#t~ret57;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~10; 670#L927 processEnvironment_#t~ret55 := isMethaneAlarm_#res;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~8 := processEnvironment_#t~ret55;havoc processEnvironment_#t~ret55; 823#L870 assume 0 != processEnvironment_~tmp~8;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 824#L917 assume { :end_inline_deactivatePump } true; 753#L866-1 assume { :end_inline_processEnvironment } true; 934#L789-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_#t~ret37, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 926#L610-5 __utac_acc__Specification2_spec__2_#t~ret36 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret36;havoc __utac_acc__Specification2_spec__2_#t~ret36; 927#L540 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 678#L540-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 952#L799 assume { :end_inline_timeShift } true; 953#L716-3 [2018-11-18 17:24:00,219 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:00,219 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 17:24:00,219 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:00,219 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:00,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:00,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:24:00,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:00,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:00,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:00,302 INFO L82 PathProgramCache]: Analyzing trace with hash 368246051, now seen corresponding path program 1 times [2018-11-18 17:24:00,302 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:00,302 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:00,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:00,303 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:24:00,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:24:00,342 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 17:24:00,342 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:24:00,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:24:00,343 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 17:24:00,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:24:00,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:24:00,343 INFO L87 Difference]: Start difference. First operand 312 states and 415 transitions. cyclomatic complexity: 105 Second operand 3 states. [2018-11-18 17:24:00,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:24:00,884 INFO L93 Difference]: Finished difference Result 325 states and 411 transitions. [2018-11-18 17:24:00,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:24:00,885 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 325 states and 411 transitions. [2018-11-18 17:24:00,889 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 224 [2018-11-18 17:24:00,891 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 325 states to 325 states and 411 transitions. [2018-11-18 17:24:00,891 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 325 [2018-11-18 17:24:00,892 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 325 [2018-11-18 17:24:00,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 325 states and 411 transitions. [2018-11-18 17:24:00,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:24:00,895 INFO L705 BuchiCegarLoop]: Abstraction has 325 states and 411 transitions. [2018-11-18 17:24:00,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states and 411 transitions. [2018-11-18 17:24:00,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2018-11-18 17:24:00,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2018-11-18 17:24:00,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 411 transitions. [2018-11-18 17:24:00,915 INFO L728 BuchiCegarLoop]: Abstraction has 325 states and 411 transitions. [2018-11-18 17:24:00,915 INFO L608 BuchiCegarLoop]: Abstraction has 325 states and 411 transitions. [2018-11-18 17:24:00,915 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 17:24:00,916 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 325 states and 411 transitions. [2018-11-18 17:24:00,918 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 224 [2018-11-18 17:24:00,918 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:24:00,918 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:24:00,919 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:24:00,919 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 17:24:00,919 INFO L794 eck$LassoCheckResult]: Stem: 1472#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(13);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string41.base,#t~string41.offset := 44];#memory_int := #memory_int[#t~string41.base,1 + #t~string41.offset := 77];#memory_int := #memory_int[#t~string41.base,2 + #t~string41.offset := 101];#memory_int := #memory_int[#t~string41.base,3 + #t~string41.offset := 116];#memory_int := #memory_int[#t~string41.base,4 + #t~string41.offset := 104];#memory_int := #memory_int[#t~string41.base,5 + #t~string41.offset := 58];#memory_int := #memory_int[#t~string41.base,6 + #t~string41.offset := 0];call #t~string43.base, #t~string43.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 67];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 82];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 73];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 84];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 75];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 41];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 80];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 117];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 109];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 112];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 110];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 32];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 10];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1323#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;assume { :begin_inline_select_helpers } true; 1324#L692 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1333#L685 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 1540#L700 main_#t~ret35 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 1541#L498 assume 0 != main_~tmp~3;assume { :begin_inline_setup } true; 1536#L469 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1537#L529 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, 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; 1551#L716-3 [2018-11-18 17:24:00,920 INFO L796 eck$LassoCheckResult]: Loop: 1551#L716-3 assume true; 1411#L716-1 assume !false; 1412#L717 assume test_~splverifierCounter~0 < 4; 1535#L718 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 1519#L726 assume !(0 != test_~tmp~5); 1492#L726-2 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 1345#L736 assume !(0 != test_~tmp___0~1); 1334#L736-2 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 1335#L746 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet52;havoc test_#t~nondet52; 1473#L754 assume 0 != test_~tmp___1~0; 1474#L754-2 assume { :begin_inline_timeShift } true; 1396#L782 assume !(0 != ~pumpRunning~0); 1397#L782-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 1407#L866 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret54, processEnvironment__wrappee__methaneQuery_~tmp~7;havoc processEnvironment__wrappee__methaneQuery_~tmp~7; 1383#L840-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1384#L814-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret74, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~10, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~10;havoc isHighWaterLevel_~tmp___0~2;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1494#L650-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1457#L655-3 isHighWaterLevel_#t~ret74 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~10 := isHighWaterLevel_#t~ret74;havoc isHighWaterLevel_#t~ret74; 1458#L985-9 assume !(0 != isHighWaterLevel_~tmp~10);isHighWaterLevel_~tmp___0~2 := 1; 1447#L985-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1431#L991-3 processEnvironment__wrappee__highWaterSensor_#t~ret53 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret53;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53; 1347#L818-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6);assume { :begin_inline_processEnvironment__wrappee__base } true; 1349#L806-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1498#L814-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1385#L840-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1380#L866-1 assume { :end_inline_processEnvironment } true; 1531#L789-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_#t~ret37, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 1523#L610-5 __utac_acc__Specification2_spec__2_#t~ret36 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret36;havoc __utac_acc__Specification2_spec__2_#t~ret36; 1524#L540 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 1317#L540-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1550#L799 assume { :end_inline_timeShift } true; 1551#L716-3 [2018-11-18 17:24:00,920 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:00,920 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 17:24:00,921 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:00,921 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:00,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:00,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:24:00,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:01,004 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:01,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1958676691, now seen corresponding path program 1 times [2018-11-18 17:24:01,013 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:01,013 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:01,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:01,014 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:24:01,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:24:01,162 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 17:24:01,162 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:24:01,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 17:24:01,163 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 17:24:01,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 17:24:01,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 17:24:01,163 INFO L87 Difference]: Start difference. First operand 325 states and 411 transitions. cyclomatic complexity: 88 Second operand 4 states. [2018-11-18 17:24:01,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:24:01,890 INFO L93 Difference]: Finished difference Result 633 states and 787 transitions. [2018-11-18 17:24:01,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 17:24:01,891 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 633 states and 787 transitions. [2018-11-18 17:24:01,895 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 442 [2018-11-18 17:24:01,899 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 633 states to 633 states and 787 transitions. [2018-11-18 17:24:01,899 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 633 [2018-11-18 17:24:01,900 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 633 [2018-11-18 17:24:01,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 633 states and 787 transitions. [2018-11-18 17:24:01,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:24:01,903 INFO L705 BuchiCegarLoop]: Abstraction has 633 states and 787 transitions. [2018-11-18 17:24:01,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states and 787 transitions. [2018-11-18 17:24:01,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 343. [2018-11-18 17:24:01,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2018-11-18 17:24:01,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 429 transitions. [2018-11-18 17:24:01,923 INFO L728 BuchiCegarLoop]: Abstraction has 343 states and 429 transitions. [2018-11-18 17:24:01,924 INFO L608 BuchiCegarLoop]: Abstraction has 343 states and 429 transitions. [2018-11-18 17:24:01,925 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 17:24:01,925 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 343 states and 429 transitions. [2018-11-18 17:24:01,926 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 236 [2018-11-18 17:24:01,927 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:24:01,927 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:24:01,927 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:24:01,928 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 17:24:01,928 INFO L794 eck$LassoCheckResult]: Stem: 2443#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(13);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string41.base,#t~string41.offset := 44];#memory_int := #memory_int[#t~string41.base,1 + #t~string41.offset := 77];#memory_int := #memory_int[#t~string41.base,2 + #t~string41.offset := 101];#memory_int := #memory_int[#t~string41.base,3 + #t~string41.offset := 116];#memory_int := #memory_int[#t~string41.base,4 + #t~string41.offset := 104];#memory_int := #memory_int[#t~string41.base,5 + #t~string41.offset := 58];#memory_int := #memory_int[#t~string41.base,6 + #t~string41.offset := 0];call #t~string43.base, #t~string43.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 67];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 82];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 73];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 84];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 75];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 41];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 80];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 117];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 109];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 112];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 110];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 32];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 10];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 2291#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;assume { :begin_inline_select_helpers } true; 2292#L692 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2301#L685 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 2510#L700 main_#t~ret35 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 2511#L498 assume 0 != main_~tmp~3;assume { :begin_inline_setup } true; 2506#L469 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 2507#L529 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, 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; 2524#L716-3 [2018-11-18 17:24:01,928 INFO L796 eck$LassoCheckResult]: Loop: 2524#L716-3 assume true; 2380#L716-1 assume !false; 2381#L717 assume test_~splverifierCounter~0 < 4; 2505#L718 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 2486#L726 assume !(0 != test_~tmp~5); 2462#L726-2 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 2313#L736 assume !(0 != test_~tmp___0~1); 2302#L736-2 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 2303#L746 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2535#L1019 assume { :end_inline_startSystem } true; 2445#L754-2 assume { :begin_inline_timeShift } true; 2364#L782 assume !(0 != ~pumpRunning~0); 2365#L782-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 2499#L866 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret54, processEnvironment__wrappee__methaneQuery_~tmp~7;havoc processEnvironment__wrappee__methaneQuery_~tmp~7; 2351#L840-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 2352#L814-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret74, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~10, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~10;havoc isHighWaterLevel_~tmp___0~2;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 2463#L650-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~6 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 2533#L655-3 isHighWaterLevel_#t~ret74 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~10 := isHighWaterLevel_#t~ret74;havoc isHighWaterLevel_#t~ret74; 2592#L985-9 assume !(0 != isHighWaterLevel_~tmp~10);isHighWaterLevel_~tmp___0~2 := 1; 2425#L985-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 2405#L991-3 processEnvironment__wrappee__highWaterSensor_#t~ret53 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret53;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53; 2315#L818-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6);assume { :begin_inline_processEnvironment__wrappee__base } true; 2317#L806-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2467#L814-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2353#L840-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2348#L866-1 assume { :end_inline_processEnvironment } true; 2501#L789-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_#t~ret37, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 2492#L610-5 __utac_acc__Specification2_spec__2_#t~ret36 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret36;havoc __utac_acc__Specification2_spec__2_#t~ret36; 2493#L540 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 2287#L540-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2523#L799 assume { :end_inline_timeShift } true; 2524#L716-3 [2018-11-18 17:24:01,928 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:01,928 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2018-11-18 17:24:01,934 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:01,934 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:01,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:01,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:24:01,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:01,976 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:01,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1595069238, now seen corresponding path program 1 times [2018-11-18 17:24:01,984 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:01,984 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:01,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:01,986 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:24:01,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:24:02,190 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-11-18 17:24:02,331 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 17:24:02,331 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:24:02,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:24:02,331 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 17:24:02,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 17:24:02,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:24:02,332 INFO L87 Difference]: Start difference. First operand 343 states and 429 transitions. cyclomatic complexity: 88 Second operand 5 states. [2018-11-18 17:24:02,853 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-18 17:24:03,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:24:03,879 INFO L93 Difference]: Finished difference Result 970 states and 1209 transitions. [2018-11-18 17:24:03,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 17:24:03,880 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 970 states and 1209 transitions. [2018-11-18 17:24:03,886 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 692 [2018-11-18 17:24:03,891 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 970 states to 970 states and 1209 transitions. [2018-11-18 17:24:03,891 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 970 [2018-11-18 17:24:03,892 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 970 [2018-11-18 17:24:03,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 970 states and 1209 transitions. [2018-11-18 17:24:03,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:24:03,894 INFO L705 BuchiCegarLoop]: Abstraction has 970 states and 1209 transitions. [2018-11-18 17:24:03,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states and 1209 transitions. [2018-11-18 17:24:03,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 370. [2018-11-18 17:24:03,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2018-11-18 17:24:03,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 456 transitions. [2018-11-18 17:24:03,905 INFO L728 BuchiCegarLoop]: Abstraction has 370 states and 456 transitions. [2018-11-18 17:24:03,905 INFO L608 BuchiCegarLoop]: Abstraction has 370 states and 456 transitions. [2018-11-18 17:24:03,905 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 17:24:03,905 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 370 states and 456 transitions. [2018-11-18 17:24:03,907 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 254 [2018-11-18 17:24:03,907 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:24:03,907 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:24:03,907 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:24:03,908 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 17:24:03,908 INFO L794 eck$LassoCheckResult]: Stem: 3766#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(13);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string41.base,#t~string41.offset := 44];#memory_int := #memory_int[#t~string41.base,1 + #t~string41.offset := 77];#memory_int := #memory_int[#t~string41.base,2 + #t~string41.offset := 101];#memory_int := #memory_int[#t~string41.base,3 + #t~string41.offset := 116];#memory_int := #memory_int[#t~string41.base,4 + #t~string41.offset := 104];#memory_int := #memory_int[#t~string41.base,5 + #t~string41.offset := 58];#memory_int := #memory_int[#t~string41.base,6 + #t~string41.offset := 0];call #t~string43.base, #t~string43.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 67];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 82];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 73];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 84];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 75];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 41];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 80];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 117];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 109];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 112];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 110];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 32];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 10];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 3618#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;assume { :begin_inline_select_helpers } true; 3619#L692 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3626#L685 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 3844#L700 main_#t~ret35 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 3845#L498 assume 0 != main_~tmp~3;assume { :begin_inline_setup } true; 3839#L469 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 3840#L529 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, 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; 3860#L716-3 [2018-11-18 17:24:03,908 INFO L796 eck$LassoCheckResult]: Loop: 3860#L716-3 assume true; 3700#L716-1 assume !false; 3701#L717 assume test_~splverifierCounter~0 < 4; 3838#L718 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 3938#L726 assume !(0 != test_~tmp~5); 3935#L726-2 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 3932#L736 assume !(0 != test_~tmp___0~1); 3929#L736-2 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 3928#L746 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3926#L1019 assume { :end_inline_startSystem } true; 3925#L754-2 assume { :begin_inline_timeShift } true; 3683#L782 assume !(0 != ~pumpRunning~0); 3684#L782-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 3832#L866 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret54, processEnvironment__wrappee__methaneQuery_~tmp~7;havoc processEnvironment__wrappee__methaneQuery_~tmp~7; 3671#L840-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 3672#L814-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret74, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~10, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~10;havoc isHighWaterLevel_~tmp___0~2;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 3797#L650-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~6 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 3750#L655-3 isHighWaterLevel_#t~ret74 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~10 := isHighWaterLevel_#t~ret74;havoc isHighWaterLevel_#t~ret74; 3751#L985-9 assume 0 != isHighWaterLevel_~tmp~10;isHighWaterLevel_~tmp___0~2 := 0; 3775#L985-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 3917#L991-3 processEnvironment__wrappee__highWaterSensor_#t~ret53 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret53;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53; 3912#L818-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6);assume { :begin_inline_processEnvironment__wrappee__base } true; 3896#L806-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3897#L814-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3949#L840-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3876#L866-1 assume { :end_inline_processEnvironment } true; 3948#L789-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_#t~ret37, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 3947#L610-5 __utac_acc__Specification2_spec__2_#t~ret36 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret36;havoc __utac_acc__Specification2_spec__2_#t~ret36; 3945#L540 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 3942#L540-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 3941#L799 assume { :end_inline_timeShift } true; 3860#L716-3 [2018-11-18 17:24:03,908 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:03,908 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2018-11-18 17:24:03,917 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:03,917 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:03,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:03,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:24:03,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:03,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:03,963 INFO L82 PathProgramCache]: Analyzing trace with hash -2113092044, now seen corresponding path program 1 times [2018-11-18 17:24:03,963 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:03,963 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:03,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:03,964 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:24:03,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:24:04,074 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 17:24:04,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:24:04,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 17:24:04,075 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 17:24:04,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 17:24:04,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 17:24:04,076 INFO L87 Difference]: Start difference. First operand 370 states and 456 transitions. cyclomatic complexity: 88 Second operand 4 states. [2018-11-18 17:24:04,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:24:04,603 INFO L93 Difference]: Finished difference Result 624 states and 760 transitions. [2018-11-18 17:24:04,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 17:24:04,603 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 624 states and 760 transitions. [2018-11-18 17:24:04,607 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 436 [2018-11-18 17:24:04,609 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 624 states to 624 states and 760 transitions. [2018-11-18 17:24:04,609 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 624 [2018-11-18 17:24:04,610 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 624 [2018-11-18 17:24:04,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 624 states and 760 transitions. [2018-11-18 17:24:04,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:24:04,611 INFO L705 BuchiCegarLoop]: Abstraction has 624 states and 760 transitions. [2018-11-18 17:24:04,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states and 760 transitions. [2018-11-18 17:24:04,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 370. [2018-11-18 17:24:04,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2018-11-18 17:24:04,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 447 transitions. [2018-11-18 17:24:04,620 INFO L728 BuchiCegarLoop]: Abstraction has 370 states and 447 transitions. [2018-11-18 17:24:04,620 INFO L608 BuchiCegarLoop]: Abstraction has 370 states and 447 transitions. [2018-11-18 17:24:04,620 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-18 17:24:04,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 370 states and 447 transitions. [2018-11-18 17:24:04,623 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 254 [2018-11-18 17:24:04,623 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:24:04,623 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:24:04,624 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:24:04,624 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 17:24:04,624 INFO L794 eck$LassoCheckResult]: Stem: 4759#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(13);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string41.base,#t~string41.offset := 44];#memory_int := #memory_int[#t~string41.base,1 + #t~string41.offset := 77];#memory_int := #memory_int[#t~string41.base,2 + #t~string41.offset := 101];#memory_int := #memory_int[#t~string41.base,3 + #t~string41.offset := 116];#memory_int := #memory_int[#t~string41.base,4 + #t~string41.offset := 104];#memory_int := #memory_int[#t~string41.base,5 + #t~string41.offset := 58];#memory_int := #memory_int[#t~string41.base,6 + #t~string41.offset := 0];call #t~string43.base, #t~string43.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string43.base,#t~string43.offset := 67];#memory_int := #memory_int[#t~string43.base,1 + #t~string43.offset := 82];#memory_int := #memory_int[#t~string43.base,2 + #t~string43.offset := 73];#memory_int := #memory_int[#t~string43.base,3 + #t~string43.offset := 84];#memory_int := #memory_int[#t~string43.base,4 + #t~string43.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 75];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 41];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 80];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 117];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 109];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 112];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 110];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 32];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 10];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 4622#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;assume { :begin_inline_select_helpers } true; 4623#L692 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4630#L685 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 4826#L700 main_#t~ret35 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 4827#L498 assume 0 != main_~tmp~3;assume { :begin_inline_setup } true; 4822#L469 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 4823#L529 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, 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; 4845#L716-3 [2018-11-18 17:24:04,624 INFO L796 eck$LassoCheckResult]: Loop: 4845#L716-3 assume true; 4697#L716-1 assume !false; 4698#L717 assume test_~splverifierCounter~0 < 4; 4821#L718 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 4803#L726 assume !(0 != test_~tmp~5); 4779#L726-2 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 4639#L736 assume !(0 != test_~tmp___0~1); 4631#L736-2 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 4632#L746 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 4856#L1019 assume { :end_inline_startSystem } true; 4762#L754-2 assume { :begin_inline_timeShift } true; 4682#L782 assume !(0 != ~pumpRunning~0); 4683#L782-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 4693#L866 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret54, processEnvironment__wrappee__methaneQuery_~tmp~7;havoc processEnvironment__wrappee__methaneQuery_~tmp~7; 4671#L840-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 4672#L814-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret74, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~10, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~10;havoc isHighWaterLevel_~tmp___0~2;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 4781#L650-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 4854#L655-3 isHighWaterLevel_#t~ret74 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~10 := isHighWaterLevel_#t~ret74;havoc isHighWaterLevel_#t~ret74; 4913#L985-9 assume 0 != isHighWaterLevel_~tmp~10;isHighWaterLevel_~tmp___0~2 := 0; 4907#L985-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 4901#L991-3 processEnvironment__wrappee__highWaterSensor_#t~ret53 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret53;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53; 4895#L818-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6);assume { :begin_inline_processEnvironment__wrappee__base } true; 4877#L806-6 assume { :end_inline_processEnvironment__wrappee__base } true; 4785#L814-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4673#L840-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 4669#L866-1 assume { :end_inline_processEnvironment } true; 4817#L789-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_#t~ret37, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 4809#L610-5 __utac_acc__Specification2_spec__2_#t~ret36 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret36;havoc __utac_acc__Specification2_spec__2_#t~ret36; 4810#L540 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 4616#L540-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 4844#L799 assume { :end_inline_timeShift } true; 4845#L716-3 [2018-11-18 17:24:04,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:04,625 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 6 times [2018-11-18 17:24:04,625 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:04,625 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:04,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:04,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:24:04,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:04,675 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:04,677 INFO L82 PathProgramCache]: Analyzing trace with hash -833228366, now seen corresponding path program 1 times [2018-11-18 17:24:04,685 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:04,685 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:04,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:04,686 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:24:04,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:04,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:04,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1645268567, now seen corresponding path program 1 times [2018-11-18 17:24:04,697 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:04,698 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:04,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:04,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:24:04,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:05,156 WARN L180 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2018-11-18 17:24:48,504 WARN L180 SmtUtils]: Spent 43.30 s on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 17:24:58,771 WARN L180 SmtUtils]: Spent 10.26 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 17:24:58,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 05:24:58 BoogieIcfgContainer [2018-11-18 17:24:58,841 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 17:24:58,841 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:24:58,842 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:24:58,842 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:24:58,842 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:23:58" (3/4) ... [2018-11-18 17:24:58,847 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 17:24:58,894 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fe9806dd-095c-4b8d-bfa8-6917c82f9b22/bin-2019/uautomizer/witness.graphml [2018-11-18 17:24:58,895 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:24:58,895 INFO L168 Benchmark]: Toolchain (without parser) took 64607.17 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 270.0 MB). Free memory was 958.0 MB in the beginning and 1.1 GB in the end (delta: -169.0 MB). Peak memory consumption was 101.0 MB. Max. memory is 11.5 GB. [2018-11-18 17:24:58,896 INFO L168 Benchmark]: CDTParser took 0.23 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 17:24:58,896 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 958.0 MB in the beginning and 1.1 GB in the end (delta: -140.8 MB). Peak memory consumption was 35.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:24:58,900 INFO L168 Benchmark]: Boogie Procedure Inliner took 152.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:24:58,901 INFO L168 Benchmark]: Boogie Preprocessor took 118.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:24:58,901 INFO L168 Benchmark]: RCFGBuilder took 3090.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 991.6 MB in the end (delta: 96.3 MB). Peak memory consumption was 96.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:24:58,901 INFO L168 Benchmark]: BuchiAutomizer took 60478.92 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 158.3 MB). Free memory was 991.6 MB in the beginning and 1.1 GB in the end (delta: -135.5 MB). Peak memory consumption was 345.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:24:58,902 INFO L168 Benchmark]: Witness Printer took 53.14 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:24:58,904 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 709.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 958.0 MB in the beginning and 1.1 GB in the end (delta: -140.8 MB). Peak memory consumption was 35.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 152.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 118.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3090.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 991.6 MB in the end (delta: 96.3 MB). Peak memory consumption was 96.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 60478.92 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 158.3 MB). Free memory was 991.6 MB in the beginning and 1.1 GB in the end (delta: -135.5 MB). Peak memory consumption was 345.6 MB. Max. memory is 11.5 GB. * Witness Printer took 53.14 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 370 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 60.4s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 56.4s. Construction of modules took 2.8s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 1144 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 370 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 2217 SDtfs, 3865 SDslu, 2340 SDs, 0 SdLazy, 372 SolverSat, 129 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time LassoAnalysisResults: nont1 unkn0 SFLI4 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, ")"=0, "Off"=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b9d9829=0, ") "=31, ",Meth:"=0, "OK"=0, "On"=0, "Off"=35, "CRIT"=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@886b7f1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a9dc29b=151, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e810334=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13172066=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@581bf7e=0, ",Pump:"=0, "Off"=0, tmp=0, ",Meth:"=23, "On"=0, tmp___1=0, "__utac__get_this_argtype"=34, "__utac__get_this_arg"=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@950be49=0, "__utac__get_this_arg"=8, "libacc.c"=26, "Env(Water:%i"=39, cleanupTimeShifts=4, "libacc.c"=38, "OK"=15, tmp=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=0, NULL=0, systemActive=1, waterLevel=1, "Off"=17, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, \result=0, ")"=19, retValue_acc=0, \result=1, "i > 0 && i <= this->argsCount"=14, head=0, pumpRunning=0, \result=0, retValue_acc=1, "i > 0 && i <= this->argsCount"=11, tmp=1, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, \result=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28a38fc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16a86d04=0, "On"=37, retValue_acc=1, "On"=29, "libacc.c"=28, ") "=0, retValue_acc=0, "\n"=0, tmp___2=151, "i > 0 && i <= this->argsCount"=18, tmp___0=0, tmp=1, splverifierCounter=0, "Pump(System:"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e3a6a0=0, methAndRunningLastTime=0, \result=0, "\n"=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ee10993=0, "Pump(System:"=24, head=0, "libacc.c"=0, "libacc.c"=12, "i > 0 && i <= this->argsCount"=27, "__utac__get_this_arg"=0, "__utac__get_this_argtype"=36, "Env(Water:%i"=0, tmp=0, "libacc.c"=0, "libacc.c"=0, "CRIT"=33, tmp=0, tmp=0, ",Pump:"=22} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 716]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L337] FCALL "i > 0 && i <= this->argsCount" [L337] FCALL "libacc.c" [L338] FCALL "__utac__get_this_arg" [L344] FCALL "i > 0 && i <= this->argsCount" [L344] FCALL "libacc.c" [L345] FCALL "__utac__get_this_arg" [L383] FCALL "i > 0 && i <= this->argsCount" [L383] FCALL "libacc.c" [L384] FCALL "__utac__get_this_argtype" [L390] FCALL "i > 0 && i <= this->argsCount" [L390] FCALL "libacc.c" [L391] FCALL "__utac__get_this_argtype" [L619] FCALL "Env(Water:%i" [L620] FCALL ",Meth:" [L624] FCALL "CRIT" [L628] FCALL "OK" [L632] FCALL ")" [L945] FCALL "Pump(System:" [L949] FCALL "On" [L953] FCALL "Off" [L957] FCALL ",Pump:" [L961] FCALL "On" [L965] FCALL "Off" [L969] FCALL ") " [L971] FCALL "\n" [L406] int cleanupTimeShifts = 4; [L523] int methAndRunningLastTime ; [L567] int waterLevel = 1; [L568] int methaneLevelCritical = 0; [L775] int pumpRunning = 0; [L776] int systemActive = 1; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L489] int retValue_acc ; [L490] int tmp ; [L494] FCALL select_helpers() [L495] FCALL select_features() [L496] CALL, EXPR valid_product() [L696] int retValue_acc ; [L699] retValue_acc = 1 [L700] RET return (retValue_acc); [L496] EXPR valid_product() [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L500] FCALL setup() [L501] CALL runTest() [L479] CALL __utac_acc__Specification2_spec__1() [L528] RET methAndRunningLastTime = 0 [L479] __utac_acc__Specification2_spec__1() [L480] 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() [L1018] RET systemActive = 1 [L748] startSystem() [L761] CALL timeShift() [L782] COND FALSE !(\read(pumpRunning)) [L789] COND TRUE \read(systemActive) [L791] CALL processEnvironment() [L863] int tmp ; [L866] COND FALSE !(\read(pumpRunning)) [L881] CALL processEnvironment__wrappee__methaneQuery() [L837] int tmp ; [L840] COND FALSE !(\read(pumpRunning)) [L855] CALL processEnvironment__wrappee__highWaterSensor() [L811] int tmp ; [L814] COND TRUE ! pumpRunning [L816] CALL, EXPR isHighWaterLevel() [L977] int retValue_acc ; [L978] int tmp ; [L979] int tmp___0 ; [L983] CALL, EXPR isHighWaterSensorDry() [L647] int retValue_acc ; [L650] COND TRUE waterLevel < 2 [L651] retValue_acc = 1 [L652] RET return (retValue_acc); [L983] EXPR isHighWaterSensorDry() [L983] tmp = isHighWaterSensorDry() [L985] COND TRUE \read(tmp) [L986] tmp___0 = 0 [L990] retValue_acc = tmp___0 [L991] RET return (retValue_acc); [L816] EXPR isHighWaterLevel() [L816] tmp = isHighWaterLevel() [L818] COND FALSE !(\read(tmp)) [L824] RET, FCALL processEnvironment__wrappee__base() [L855] RET processEnvironment__wrappee__highWaterSensor() [L881] RET processEnvironment__wrappee__methaneQuery() [L791] processEnvironment() [L797] CALL __utac_acc__Specification2_spec__2() [L533] int tmp ; [L534] int tmp___0 ; [L538] CALL, EXPR isMethaneLevelCritical() [L606] int retValue_acc ; [L609] retValue_acc = methaneLevelCritical [L610] RET return (retValue_acc); [L538] EXPR isMethaneLevelCritical() [L538] tmp = isMethaneLevelCritical() [L540] COND FALSE !(\read(tmp)) [L556] RET methAndRunningLastTime = 0 [L797] RET __utac_acc__Specification2_spec__2() [L761] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...