./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product37_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_fc925aee-d678-42ba-9910-10255877942c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fc925aee-d678-42ba-9910-10255877942c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fc925aee-d678-42ba-9910-10255877942c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fc925aee-d678-42ba-9910-10255877942c/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product37_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fc925aee-d678-42ba-9910-10255877942c/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fc925aee-d678-42ba-9910-10255877942c/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 1b0c0c83f247eef1881f0b5170efc2ede9b08897 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 16:18:26,268 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:18:26,269 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:18:26,276 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:18:26,277 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:18:26,277 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:18:26,278 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:18:26,279 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:18:26,280 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:18:26,281 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:18:26,281 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:18:26,281 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:18:26,282 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:18:26,283 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:18:26,283 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:18:26,284 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:18:26,284 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:18:26,286 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:18:26,287 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:18:26,288 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:18:26,288 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:18:26,289 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:18:26,291 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:18:26,291 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:18:26,291 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:18:26,292 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:18:26,292 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:18:26,293 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:18:26,294 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:18:26,294 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:18:26,294 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:18:26,295 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:18:26,295 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:18:26,295 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:18:26,296 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:18:26,296 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:18:26,296 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fc925aee-d678-42ba-9910-10255877942c/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 16:18:26,307 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:18:26,307 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:18:26,308 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:18:26,308 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:18:26,308 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:18:26,309 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 16:18:26,309 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 16:18:26,309 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 16:18:26,309 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 16:18:26,309 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 16:18:26,309 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 16:18:26,309 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:18:26,309 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:18:26,310 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 16:18:26,310 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:18:26,310 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:18:26,310 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:18:26,310 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 16:18:26,310 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 16:18:26,310 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 16:18:26,311 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:18:26,311 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:18:26,311 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 16:18:26,311 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:18:26,311 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 16:18:26,311 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:18:26,311 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:18:26,311 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 16:18:26,312 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:18:26,312 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:18:26,312 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 16:18:26,312 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 16:18:26,313 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_fc925aee-d678-42ba-9910-10255877942c/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 -> 1b0c0c83f247eef1881f0b5170efc2ede9b08897 [2018-11-18 16:18:26,333 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:18:26,341 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:18:26,343 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:18:26,344 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:18:26,344 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:18:26,345 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fc925aee-d678-42ba-9910-10255877942c/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product37_true-unreach-call_false-termination.cil.c [2018-11-18 16:18:26,378 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc925aee-d678-42ba-9910-10255877942c/bin-2019/uautomizer/data/56a312eae/1f207e4e490a4e83b90345925b43eff1/FLAG03bd5c265 [2018-11-18 16:18:26,795 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:18:26,795 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fc925aee-d678-42ba-9910-10255877942c/sv-benchmarks/c/product-lines/minepump_spec3_product37_true-unreach-call_false-termination.cil.c [2018-11-18 16:18:26,802 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc925aee-d678-42ba-9910-10255877942c/bin-2019/uautomizer/data/56a312eae/1f207e4e490a4e83b90345925b43eff1/FLAG03bd5c265 [2018-11-18 16:18:26,813 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fc925aee-d678-42ba-9910-10255877942c/bin-2019/uautomizer/data/56a312eae/1f207e4e490a4e83b90345925b43eff1 [2018-11-18 16:18:26,815 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:18:26,816 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:18:26,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:18:26,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:18:26,819 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:18:26,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:18:26" (1/1) ... [2018-11-18 16:18:26,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345e74ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:26, skipping insertion in model container [2018-11-18 16:18:26,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:18:26" (1/1) ... [2018-11-18 16:18:26,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:18:26,857 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:18:27,036 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:18:27,044 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:18:27,141 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:18:27,163 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:18:27,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:27 WrapperNode [2018-11-18 16:18:27,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:18:27,164 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:18:27,164 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:18:27,164 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:18:27,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:27" (1/1) ... [2018-11-18 16:18:27,184 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:27" (1/1) ... [2018-11-18 16:18:27,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:18:27,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:18:27,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:18:27,214 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:18:27,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:27" (1/1) ... [2018-11-18 16:18:27,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:27" (1/1) ... [2018-11-18 16:18:27,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:27" (1/1) ... [2018-11-18 16:18:27,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:27" (1/1) ... [2018-11-18 16:18:27,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:27" (1/1) ... [2018-11-18 16:18:27,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:27" (1/1) ... [2018-11-18 16:18:27,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:27" (1/1) ... [2018-11-18 16:18:27,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:18:27,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:18:27,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:18:27,245 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:18:27,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc925aee-d678-42ba-9910-10255877942c/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:18:27,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:18:27,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:18:27,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:18:27,845 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:18:27,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:18:27 BoogieIcfgContainer [2018-11-18 16:18:27,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:18:27,846 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 16:18:27,846 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 16:18:27,849 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 16:18:27,850 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:18:27,850 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 04:18:26" (1/3) ... [2018-11-18 16:18:27,851 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3055409d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:18:27, skipping insertion in model container [2018-11-18 16:18:27,851 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:18:27,851 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:18:27" (2/3) ... [2018-11-18 16:18:27,851 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3055409d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:18:27, skipping insertion in model container [2018-11-18 16:18:27,851 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:18:27,851 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:18:27" (3/3) ... [2018-11-18 16:18:27,853 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product37_true-unreach-call_false-termination.cil.c [2018-11-18 16:18:27,895 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:18:27,896 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 16:18:27,896 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 16:18:27,896 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 16:18:27,896 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:18:27,896 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:18:27,896 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 16:18:27,896 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:18:27,896 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 16:18:27,910 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 164 states. [2018-11-18 16:18:27,930 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2018-11-18 16:18:27,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:18:27,930 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:18:27,937 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:18:27,937 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:18:27,937 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 16:18:27,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 164 states. [2018-11-18 16:18:27,943 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2018-11-18 16:18:27,943 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:18:27,943 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:18:27,944 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:18:27,944 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:18:27,947 INFO L794 eck$LassoCheckResult]: Stem: 118#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(30);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(9);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(21);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(25);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(13);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 79];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 110];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 79];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 102];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 102];#memory_int := #memory_int[#t~string44.base,3 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 44];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 80];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 117];#memory_int := #memory_int[#t~string46.base,3 + #t~string46.offset := 109];#memory_int := #memory_int[#t~string46.base,4 + #t~string46.offset := 112];#memory_int := #memory_int[#t~string46.base,5 + #t~string46.offset := 58];#memory_int := #memory_int[#t~string46.base,6 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 110];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 79];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 102];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 102];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 41];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 32];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 10];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(13);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 44];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 77];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 101];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 116];#memory_int := #memory_int[#t~string63.base,4 + #t~string63.offset := 104];#memory_int := #memory_int[#t~string63.base,5 + #t~string63.offset := 58];#memory_int := #memory_int[#t~string63.base,6 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 67];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 82];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 73];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 84];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 75];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 41];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 4#L921true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 90#L914true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 24#L929true main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 75#L130true assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 23#L103true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 32#L706-3true [2018-11-18 16:18:27,947 INFO L796 eck$LassoCheckResult]: Loop: 32#L706-3true assume true; 25#L706-1true assume !false; 129#L707true assume test_~splverifierCounter~0 < 4; 63#L708true test_~tmp~7 := test_#t~nondet56;havoc test_#t~nondet56; 82#L716true assume !(0 != test_~tmp~7); 83#L716-2true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 160#L726true assume !(0 != test_~tmp___0~1); 137#L726-2true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 49#L736true assume 0 != test_~tmp___2~0; 3#L742-2true assume { :begin_inline_timeShift } true; 158#L525true assume !(0 != ~pumpRunning~0); 162#L525-2true assume !(0 != ~systemActive~0); 53#L532-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 14#L805-1true __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 31#L874true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 166#L880-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 117#L542true assume { :end_inline_timeShift } true; 32#L706-3true [2018-11-18 16:18:27,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:18:27,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 16:18:27,952 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:18:27,952 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:18:27,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:27,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:18:27,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:18:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:18:28,101 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:18:28,101 INFO L82 PathProgramCache]: Analyzing trace with hash -657145403, now seen corresponding path program 1 times [2018-11-18 16:18:28,101 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:18:28,101 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:18:28,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:28,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:18:28,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:18:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:18:28,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:18:28,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1588827007, now seen corresponding path program 1 times [2018-11-18 16:18:28,114 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:18:28,114 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:18:28,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:28,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:18:28,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:18:28,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:18:28,235 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:18:28,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 16:18:28,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 16:18:28,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 16:18:28,315 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 6 states. [2018-11-18 16:18:28,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:18:28,457 INFO L93 Difference]: Finished difference Result 161 states and 210 transitions. [2018-11-18 16:18:28,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 16:18:28,459 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 210 transitions. [2018-11-18 16:18:28,462 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2018-11-18 16:18:28,467 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 151 states and 200 transitions. [2018-11-18 16:18:28,468 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 151 [2018-11-18 16:18:28,468 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 151 [2018-11-18 16:18:28,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 151 states and 200 transitions. [2018-11-18 16:18:28,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:18:28,470 INFO L705 BuchiCegarLoop]: Abstraction has 151 states and 200 transitions. [2018-11-18 16:18:28,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states and 200 transitions. [2018-11-18 16:18:28,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2018-11-18 16:18:28,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-11-18 16:18:28,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 200 transitions. [2018-11-18 16:18:28,499 INFO L728 BuchiCegarLoop]: Abstraction has 151 states and 200 transitions. [2018-11-18 16:18:28,499 INFO L608 BuchiCegarLoop]: Abstraction has 151 states and 200 transitions. [2018-11-18 16:18:28,499 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 16:18:28,499 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 151 states and 200 transitions. [2018-11-18 16:18:28,501 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2018-11-18 16:18:28,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:18:28,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:18:28,502 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:18:28,502 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:18:28,503 INFO L794 eck$LassoCheckResult]: Stem: 479#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(30);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(9);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(21);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(25);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(13);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 79];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 110];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 79];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 102];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 102];#memory_int := #memory_int[#t~string44.base,3 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 44];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 80];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 117];#memory_int := #memory_int[#t~string46.base,3 + #t~string46.offset := 109];#memory_int := #memory_int[#t~string46.base,4 + #t~string46.offset := 112];#memory_int := #memory_int[#t~string46.base,5 + #t~string46.offset := 58];#memory_int := #memory_int[#t~string46.base,6 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 110];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 79];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 102];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 102];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 41];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 32];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 10];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(13);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 44];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 77];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 101];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 116];#memory_int := #memory_int[#t~string63.base,4 + #t~string63.offset := 104];#memory_int := #memory_int[#t~string63.base,5 + #t~string63.offset := 58];#memory_int := #memory_int[#t~string63.base,6 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 67];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 82];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 73];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 84];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 75];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 41];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 347#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 345#L921 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 346#L914 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 382#L929 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 383#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 376#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 377#L706-3 [2018-11-18 16:18:28,503 INFO L796 eck$LassoCheckResult]: Loop: 377#L706-3 assume true; 384#L706-1 assume !false; 385#L707 assume test_~splverifierCounter~0 < 4; 423#L708 test_~tmp~7 := test_#t~nondet56;havoc test_#t~nondet56; 424#L716 assume !(0 != test_~tmp~7); 409#L716-2 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 442#L726 assume !(0 != test_~tmp___0~1); 489#L726-2 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 408#L736 assume 0 != test_~tmp___2~0; 343#L742-2 assume { :begin_inline_timeShift } true; 344#L525 assume !(0 != ~pumpRunning~0); 447#L525-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 491#L583 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 406#L557-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 375#L549-3 assume { :end_inline_processEnvironment__wrappee__base } true; 369#L557-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 403#L583-1 assume { :end_inline_processEnvironment } true; 411#L532-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 365#L805-1 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 366#L874 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 389#L880-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 478#L542 assume { :end_inline_timeShift } true; 377#L706-3 [2018-11-18 16:18:28,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:18:28,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 16:18:28,504 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:18:28,504 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:18:28,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:28,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:18:28,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:18:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:18:28,548 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:18:28,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1419593305, now seen corresponding path program 1 times [2018-11-18 16:18:28,548 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:18:28,548 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:18:28,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:28,549 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:18:28,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:18:28,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:18:28,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:18:28,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 16:18:28,564 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 16:18:28,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 16:18:28,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 16:18:28,565 INFO L87 Difference]: Start difference. First operand 151 states and 200 transitions. cyclomatic complexity: 51 Second operand 3 states. [2018-11-18 16:18:28,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:18:28,629 INFO L93 Difference]: Finished difference Result 214 states and 273 transitions. [2018-11-18 16:18:28,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 16:18:28,630 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 214 states and 273 transitions. [2018-11-18 16:18:28,632 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 150 [2018-11-18 16:18:28,634 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 214 states to 214 states and 273 transitions. [2018-11-18 16:18:28,634 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 214 [2018-11-18 16:18:28,635 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 214 [2018-11-18 16:18:28,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 214 states and 273 transitions. [2018-11-18 16:18:28,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:18:28,636 INFO L705 BuchiCegarLoop]: Abstraction has 214 states and 273 transitions. [2018-11-18 16:18:28,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states and 273 transitions. [2018-11-18 16:18:28,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2018-11-18 16:18:28,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2018-11-18 16:18:28,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 273 transitions. [2018-11-18 16:18:28,645 INFO L728 BuchiCegarLoop]: Abstraction has 214 states and 273 transitions. [2018-11-18 16:18:28,645 INFO L608 BuchiCegarLoop]: Abstraction has 214 states and 273 transitions. [2018-11-18 16:18:28,645 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 16:18:28,645 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 214 states and 273 transitions. [2018-11-18 16:18:28,647 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 150 [2018-11-18 16:18:28,648 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:18:28,648 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:18:28,648 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:18:28,648 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:18:28,649 INFO L794 eck$LassoCheckResult]: Stem: 853#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(30);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(9);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(21);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(25);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(13);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 79];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 110];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 79];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 102];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 102];#memory_int := #memory_int[#t~string44.base,3 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 44];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 80];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 117];#memory_int := #memory_int[#t~string46.base,3 + #t~string46.offset := 109];#memory_int := #memory_int[#t~string46.base,4 + #t~string46.offset := 112];#memory_int := #memory_int[#t~string46.base,5 + #t~string46.offset := 58];#memory_int := #memory_int[#t~string46.base,6 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 110];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 79];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 102];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 102];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 41];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 32];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 10];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(13);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 44];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 77];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 101];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 116];#memory_int := #memory_int[#t~string63.base,4 + #t~string63.offset := 104];#memory_int := #memory_int[#t~string63.base,5 + #t~string63.offset := 58];#memory_int := #memory_int[#t~string63.base,6 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 67];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 82];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 73];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 84];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 75];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 41];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 718#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 716#L921 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 717#L914 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 752#L929 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 753#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 744#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 745#L706-3 [2018-11-18 16:18:28,649 INFO L796 eck$LassoCheckResult]: Loop: 745#L706-3 assume true; 746#L706-1 assume !false; 747#L707 assume test_~splverifierCounter~0 < 4; 796#L708 test_~tmp~7 := test_#t~nondet56;havoc test_#t~nondet56; 797#L716 assume !(0 != test_~tmp~7); 780#L716-2 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 816#L726 assume !(0 != test_~tmp___0~1); 863#L726-2 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 779#L736 assume 0 != test_~tmp___2~0; 714#L742-2 assume { :begin_inline_timeShift } true; 715#L525 assume !(0 != ~pumpRunning~0); 870#L525-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 866#L583 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 777#L557-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret55, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 778#L845-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 846#L850-1 isHighWaterLevel_#t~ret55 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret55;havoc isHighWaterLevel_#t~ret55; 862#L685-3 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~0 := 0; 854#L685-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 827#L691-1 processEnvironment__wrappee__highWaterSensor_#t~ret36 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret36;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36; 828#L561-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4);assume { :begin_inline_processEnvironment__wrappee__base } true; 737#L549-2 assume { :end_inline_processEnvironment__wrappee__base } true; 738#L557-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 776#L583-1 assume { :end_inline_processEnvironment } true; 783#L532-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 732#L805-1 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 733#L874 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 758#L880-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 852#L542 assume { :end_inline_timeShift } true; 745#L706-3 [2018-11-18 16:18:28,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:18:28,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 16:18:28,649 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:18:28,649 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:18:28,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:28,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:18:28,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:18:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:18:28,692 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:18:28,692 INFO L82 PathProgramCache]: Analyzing trace with hash 886901343, now seen corresponding path program 1 times [2018-11-18 16:18:28,692 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:18:28,693 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:18:28,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:28,693 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:18:28,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:18:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:18:28,704 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:18:28,704 INFO L82 PathProgramCache]: Analyzing trace with hash -364080605, now seen corresponding path program 1 times [2018-11-18 16:18:28,704 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:18:28,704 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:18:28,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:28,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:18:28,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:18:28,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:18:28,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:18:28,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 16:18:28,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 16:18:28,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 16:18:28,896 INFO L87 Difference]: Start difference. First operand 214 states and 273 transitions. cyclomatic complexity: 61 Second operand 5 states. [2018-11-18 16:18:28,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:18:28,993 INFO L93 Difference]: Finished difference Result 738 states and 937 transitions. [2018-11-18 16:18:28,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 16:18:28,993 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 738 states and 937 transitions. [2018-11-18 16:18:28,998 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 543 [2018-11-18 16:18:29,001 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 738 states to 738 states and 937 transitions. [2018-11-18 16:18:29,002 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 738 [2018-11-18 16:18:29,003 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 738 [2018-11-18 16:18:29,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 738 states and 937 transitions. [2018-11-18 16:18:29,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:18:29,005 INFO L705 BuchiCegarLoop]: Abstraction has 738 states and 937 transitions. [2018-11-18 16:18:29,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states and 937 transitions. [2018-11-18 16:18:29,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 421. [2018-11-18 16:18:29,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2018-11-18 16:18:29,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 531 transitions. [2018-11-18 16:18:29,023 INFO L728 BuchiCegarLoop]: Abstraction has 421 states and 531 transitions. [2018-11-18 16:18:29,023 INFO L608 BuchiCegarLoop]: Abstraction has 421 states and 531 transitions. [2018-11-18 16:18:29,023 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 16:18:29,023 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 421 states and 531 transitions. [2018-11-18 16:18:29,025 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 300 [2018-11-18 16:18:29,026 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:18:29,026 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:18:29,026 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:18:29,026 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:18:29,027 INFO L794 eck$LassoCheckResult]: Stem: 1836#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(30);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(9);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(21);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(25);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(13);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 79];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 110];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 79];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 102];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 102];#memory_int := #memory_int[#t~string44.base,3 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 44];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 80];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 117];#memory_int := #memory_int[#t~string46.base,3 + #t~string46.offset := 109];#memory_int := #memory_int[#t~string46.base,4 + #t~string46.offset := 112];#memory_int := #memory_int[#t~string46.base,5 + #t~string46.offset := 58];#memory_int := #memory_int[#t~string46.base,6 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 110];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 79];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 102];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 102];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 41];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 32];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 10];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(13);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 44];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 77];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 101];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 116];#memory_int := #memory_int[#t~string63.base,4 + #t~string63.offset := 104];#memory_int := #memory_int[#t~string63.base,5 + #t~string63.offset := 58];#memory_int := #memory_int[#t~string63.base,6 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 67];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 82];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 73];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 84];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 75];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 41];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1688#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 1686#L921 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1687#L914 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1723#L929 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1724#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 1715#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1716#L706-3 [2018-11-18 16:18:29,027 INFO L796 eck$LassoCheckResult]: Loop: 1716#L706-3 assume true; 1717#L706-1 assume !false; 1718#L707 assume test_~splverifierCounter~0 < 4; 1844#L708 test_~tmp~7 := test_#t~nondet56;havoc test_#t~nondet56; 2098#L716 assume !(0 != test_~tmp~7); 2096#L716-2 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 2094#L726 assume !(0 != test_~tmp___0~1); 2092#L726-2 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 2090#L736 assume 0 != test_~tmp___2~0; 2089#L742-2 assume { :begin_inline_timeShift } true; 2088#L525 assume !(0 != ~pumpRunning~0); 1866#L525-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1855#L583 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 1750#L557-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret55, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 1751#L845-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 1828#L850-1 isHighWaterLevel_#t~ret55 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret55;havoc isHighWaterLevel_#t~ret55; 1848#L685-3 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~0 := 0; 1837#L685-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1808#L691-1 processEnvironment__wrappee__highWaterSensor_#t~ret36 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret36;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36; 1809#L561-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4);assume { :begin_inline_processEnvironment__wrappee__base } true; 1711#L549-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1712#L557-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1749#L583-1 assume { :end_inline_processEnvironment } true; 1858#L532-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 1964#L805-1 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 1963#L874 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 1962#L837 __utac_acc__Specification3_spec__1_#t~ret71 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 1959#L880 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1958#L880-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1835#L542 assume { :end_inline_timeShift } true; 1716#L706-3 [2018-11-18 16:18:29,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:18:29,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2018-11-18 16:18:29,028 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:18:29,028 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:18:29,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:29,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:18:29,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:29,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:18:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:18:29,056 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:18:29,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1909919314, now seen corresponding path program 1 times [2018-11-18 16:18:29,057 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:18:29,057 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:18:29,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:29,058 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:18:29,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:18:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:18:29,065 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:18:29,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1987857130, now seen corresponding path program 1 times [2018-11-18 16:18:29,065 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:18:29,066 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:18:29,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:29,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:18:29,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:18:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:18:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:19:44,963 WARN L180 SmtUtils]: Spent 1.26 m on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 16:20:29,348 WARN L180 SmtUtils]: Spent 44.38 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 16:20:29,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 04:20:29 BoogieIcfgContainer [2018-11-18 16:20:29,421 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 16:20:29,422 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:20:29,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:20:29,422 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:20:29,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:18:27" (3/4) ... [2018-11-18 16:20:29,426 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 16:20:29,474 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fc925aee-d678-42ba-9910-10255877942c/bin-2019/uautomizer/witness.graphml [2018-11-18 16:20:29,474 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:20:29,475 INFO L168 Benchmark]: Toolchain (without parser) took 122659.75 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 224.9 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 78.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:20:29,476 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:20:29,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.5 MB). Free memory was 956.6 MB in the beginning and 1.2 GB in the end (delta: -203.4 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:20:29,476 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:20:29,476 INFO L168 Benchmark]: Boogie Preprocessor took 30.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:20:29,477 INFO L168 Benchmark]: RCFGBuilder took 601.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 68.2 MB). Peak memory consumption was 68.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:20:29,477 INFO L168 Benchmark]: BuchiAutomizer took 121575.32 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 52.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -23.8 MB). Peak memory consumption was 312.0 MB. Max. memory is 11.5 GB. [2018-11-18 16:20:29,477 INFO L168 Benchmark]: Witness Printer took 52.75 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 11.5 GB. [2018-11-18 16:20:29,481 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 347.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.5 MB). Free memory was 956.6 MB in the beginning and 1.2 GB in the end (delta: -203.4 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 601.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 68.2 MB). Peak memory consumption was 68.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 121575.32 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 52.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -23.8 MB). Peak memory consumption was 312.0 MB. Max. memory is 11.5 GB. * Witness Printer took 52.75 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 421 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 121.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 121.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 317 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 421 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 710 SDtfs, 1708 SDslu, 1020 SDs, 0 SdLazy, 111 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 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: 706]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, ",Meth:"=0, retValue_acc=0, ",Pump:"=0, ",Pump:"=16, "Pump(System:"=0, "Off"=0, "Env(Water:%i"=0, ",Meth:"=36, "On"=0, methaneLevelCritical=0, retValue_acc=1, tmp___0=0, "CRIT"=0, ")"=0, "__utac__get_this_argtype"=19, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@af957dd=0, tmp=0, "OK"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@465ea10d=0, tmp___1=0, "libacc.c"=24, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3976bdd6=0, "libacc.c"=28, "libacc.c"=33, "i > 0 && i <= this->argsCount"=26, tmp=0, cleanupTimeShifts=4, "i > 0 && i <= this->argsCount"=22, "On"=18, "Off"=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47023d8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12060487=0, tmp=0, tmp___0=1, "libacc.c"=0, "__utac__get_this_arg"=0, "libacc.c"=0, NULL=0, systemActive=1, waterLevel=1, ")"=39, \result=1, "libacc.c"=0, "__utac__get_this_argtype"=0, retValue_acc=0, \result=0, "Off"=17, "\n"=0, ") "=0, "Off"=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, \result=0, ") "=11, "__utac__get_this_arg"=31, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64a24741=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=0, \result=1, "On"=15, "OK"=38, "Env(Water:%i"=35, "i > 0 && i <= this->argsCount"=29, retValue_acc=1, tmp___2=40, "__utac__get_this_argtype"=23, tmp___0=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e03f194=0, splverifierCounter=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b6b0c3b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a98fca0=40, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e94bc32=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a9c3293=0, tmp___1=0, head=0, "i > 0 && i <= this->argsCount"=0, tmp=0, "__utac__get_this_arg"=27, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=34, "libacc.c"=0, "libacc.c"=20, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=0, "Pump(System:"=8, "\n"=12, "On"=0, "CRIT"=37} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 706]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L441] FCALL "i > 0 && i <= this->argsCount" [L441] FCALL "libacc.c" [L442] FCALL "__utac__get_this_arg" [L448] FCALL "i > 0 && i <= this->argsCount" [L448] FCALL "libacc.c" [L449] FCALL "__utac__get_this_arg" [L487] FCALL "i > 0 && i <= this->argsCount" [L487] FCALL "libacc.c" [L488] FCALL "__utac__get_this_argtype" [L494] FCALL "i > 0 && i <= this->argsCount" [L494] FCALL "libacc.c" [L495] FCALL "__utac__get_this_argtype" [L645] FCALL "Pump(System:" [L649] FCALL "On" [L653] FCALL "Off" [L657] FCALL ",Pump:" [L661] FCALL "On" [L665] FCALL "Off" [L669] FCALL ") " [L671] FCALL "\n" [L814] FCALL "Env(Water:%i" [L815] FCALL ",Meth:" [L819] FCALL "CRIT" [L823] FCALL "OK" [L827] FCALL ")" [L40] int cleanupTimeShifts = 4; [L517] int pumpRunning = 0; [L518] int systemActive = 1; [L762] int waterLevel = 1; [L763] int methaneLevelCritical = 0; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L925] int retValue_acc ; [L928] retValue_acc = 1 [L929] RET return (retValue_acc); [L128] EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L697] int splverifierCounter ; [L698] int tmp ; [L699] int tmp___0 ; [L700] int tmp___1 ; [L701] int tmp___2 ; [L704] splverifierCounter = 0 Loop: [L706] COND TRUE 1 [L708] COND TRUE splverifierCounter < 4 [L714] tmp = __VERIFIER_nondet_int() [L716] COND FALSE !(\read(tmp)) [L724] tmp___0 = __VERIFIER_nondet_int() [L726] COND FALSE !(\read(tmp___0)) [L734] tmp___2 = __VERIFIER_nondet_int() [L736] COND TRUE \read(tmp___2) [L749] CALL timeShift() [L525] COND FALSE !(\read(pumpRunning)) [L532] COND TRUE \read(systemActive) [L534] CALL processEnvironment() [L580] int tmp ; [L583] COND FALSE !(\read(pumpRunning)) [L598] CALL processEnvironment__wrappee__highWaterSensor() [L554] int tmp ; [L557] COND TRUE ! pumpRunning [L559] CALL, EXPR isHighWaterLevel() [L677] int retValue_acc ; [L678] int tmp ; [L679] int tmp___0 ; [L683] CALL, EXPR isHighWaterSensorDry() [L842] int retValue_acc ; [L845] COND TRUE waterLevel < 2 [L846] retValue_acc = 1 [L847] RET return (retValue_acc); [L683] EXPR isHighWaterSensorDry() [L683] tmp = isHighWaterSensorDry() [L685] COND TRUE \read(tmp) [L686] tmp___0 = 0 [L690] retValue_acc = tmp___0 [L691] RET return (retValue_acc); [L559] EXPR isHighWaterLevel() [L559] tmp = isHighWaterLevel() [L561] COND FALSE !(\read(tmp)) [L567] RET, FCALL processEnvironment__wrappee__base() [L598] RET processEnvironment__wrappee__highWaterSensor() [L534] processEnvironment() [L540] CALL __utac_acc__Specification3_spec__1() [L866] int tmp ; [L867] int tmp___0 ; [L868] int tmp___1 ; [L872] CALL, EXPR isMethaneLevelCritical() [L801] int retValue_acc ; [L804] retValue_acc = methaneLevelCritical [L805] RET return (retValue_acc); [L872] EXPR isMethaneLevelCritical() [L872] tmp = isMethaneLevelCritical() [L874] COND FALSE !(\read(tmp)) [L878] CALL, EXPR getWaterLevel() [L833] int retValue_acc ; [L836] retValue_acc = waterLevel [L837] RET return (retValue_acc); [L878] EXPR getWaterLevel() [L878] tmp___0 = getWaterLevel() [L880] COND FALSE, RET !(tmp___0 == 2) [L540] RET __utac_acc__Specification3_spec__1() [L749] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...