./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product63_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_c0e4beff-13cc-4d5e-a951-bf4516bbd88d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c0e4beff-13cc-4d5e-a951-bf4516bbd88d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c0e4beff-13cc-4d5e-a951-bf4516bbd88d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c0e4beff-13cc-4d5e-a951-bf4516bbd88d/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product63_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c0e4beff-13cc-4d5e-a951-bf4516bbd88d/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c0e4beff-13cc-4d5e-a951-bf4516bbd88d/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 2e5cd7f0160b88327fd5a74ba9af5182d0c658c6 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 16:25:19,247 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:25:19,248 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:25:19,254 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:25:19,254 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:25:19,255 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:25:19,256 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:25:19,257 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:25:19,258 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:25:19,259 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:25:19,259 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:25:19,259 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:25:19,260 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:25:19,261 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:25:19,261 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:25:19,262 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:25:19,262 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:25:19,263 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:25:19,264 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:25:19,265 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:25:19,266 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:25:19,267 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:25:19,268 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:25:19,268 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:25:19,269 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:25:19,269 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:25:19,270 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:25:19,270 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:25:19,271 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:25:19,271 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:25:19,271 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:25:19,272 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:25:19,272 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:25:19,272 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:25:19,273 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:25:19,273 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:25:19,274 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c0e4beff-13cc-4d5e-a951-bf4516bbd88d/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 16:25:19,282 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:25:19,282 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:25:19,283 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:25:19,283 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:25:19,284 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:25:19,284 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 16:25:19,284 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 16:25:19,284 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 16:25:19,284 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 16:25:19,284 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 16:25:19,284 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 16:25:19,285 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:25:19,285 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:25:19,285 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 16:25:19,285 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:25:19,285 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:25:19,285 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:25:19,285 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 16:25:19,285 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 16:25:19,286 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 16:25:19,286 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:25:19,286 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:25:19,286 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 16:25:19,286 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:25:19,286 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 16:25:19,286 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:25:19,287 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:25:19,287 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 16:25:19,287 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:25:19,287 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:25:19,287 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 16:25:19,288 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 16:25:19,288 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_c0e4beff-13cc-4d5e-a951-bf4516bbd88d/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 -> 2e5cd7f0160b88327fd5a74ba9af5182d0c658c6 [2018-11-18 16:25:19,313 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:25:19,322 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:25:19,324 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:25:19,325 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:25:19,326 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:25:19,326 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c0e4beff-13cc-4d5e-a951-bf4516bbd88d/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product63_true-unreach-call_false-termination.cil.c [2018-11-18 16:25:19,370 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c0e4beff-13cc-4d5e-a951-bf4516bbd88d/bin-2019/uautomizer/data/8a7302423/83bfefc850234d88b82e35d8a910d817/FLAG67b7b81c5 [2018-11-18 16:25:19,808 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:25:19,809 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c0e4beff-13cc-4d5e-a951-bf4516bbd88d/sv-benchmarks/c/product-lines/minepump_spec2_product63_true-unreach-call_false-termination.cil.c [2018-11-18 16:25:19,819 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c0e4beff-13cc-4d5e-a951-bf4516bbd88d/bin-2019/uautomizer/data/8a7302423/83bfefc850234d88b82e35d8a910d817/FLAG67b7b81c5 [2018-11-18 16:25:19,831 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c0e4beff-13cc-4d5e-a951-bf4516bbd88d/bin-2019/uautomizer/data/8a7302423/83bfefc850234d88b82e35d8a910d817 [2018-11-18 16:25:19,833 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:25:19,834 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:25:19,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:25:19,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:25:19,837 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:25:19,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:25:19" (1/1) ... [2018-11-18 16:25:19,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c3b532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:19, skipping insertion in model container [2018-11-18 16:25:19,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:25:19" (1/1) ... [2018-11-18 16:25:19,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:25:19,876 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:25:20,075 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:25:20,083 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:25:20,192 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:25:20,217 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:25:20,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:20 WrapperNode [2018-11-18 16:25:20,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:25:20,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:25:20,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:25:20,218 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:25:20,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:20" (1/1) ... [2018-11-18 16:25:20,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:20" (1/1) ... [2018-11-18 16:25:20,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:25:20,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:25:20,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:25:20,278 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:25:20,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:20" (1/1) ... [2018-11-18 16:25:20,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:20" (1/1) ... [2018-11-18 16:25:20,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:20" (1/1) ... [2018-11-18 16:25:20,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:20" (1/1) ... [2018-11-18 16:25:20,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:20" (1/1) ... [2018-11-18 16:25:20,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:20" (1/1) ... [2018-11-18 16:25:20,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:20" (1/1) ... [2018-11-18 16:25:20,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:25:20,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:25:20,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:25:20,322 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:25:20,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c0e4beff-13cc-4d5e-a951-bf4516bbd88d/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 16:25:20,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:25:20,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:25:20,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:25:21,160 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:25:21,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:25:21 BoogieIcfgContainer [2018-11-18 16:25:21,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:25:21,161 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 16:25:21,161 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 16:25:21,164 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 16:25:21,164 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:25:21,165 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 04:25:19" (1/3) ... [2018-11-18 16:25:21,165 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44a34077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:25:21, skipping insertion in model container [2018-11-18 16:25:21,165 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:25:21,166 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:20" (2/3) ... [2018-11-18 16:25:21,166 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44a34077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:25:21, skipping insertion in model container [2018-11-18 16:25:21,166 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:25:21,166 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:25:21" (3/3) ... [2018-11-18 16:25:21,167 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product63_true-unreach-call_false-termination.cil.c [2018-11-18 16:25:21,206 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:25:21,206 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 16:25:21,207 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 16:25:21,207 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 16:25:21,207 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:25:21,207 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:25:21,207 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 16:25:21,207 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:25:21,207 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 16:25:21,224 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 328 states. [2018-11-18 16:25:21,251 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 216 [2018-11-18 16:25:21,252 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:25:21,252 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:25:21,259 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:25:21,259 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 16:25:21,260 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 16:25:21,260 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 328 states. [2018-11-18 16:25:21,267 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 216 [2018-11-18 16:25:21,267 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:25:21,268 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:25:21,268 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:25:21,268 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 16:25:21,272 INFO L794 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 44];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 77];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 101];#memory_int := #memory_int[#t~string6.base,3 + #t~string6.offset := 116];#memory_int := #memory_int[#t~string6.base,4 + #t~string6.offset := 104];#memory_int := #memory_int[#t~string6.base,5 + #t~string6.offset := 58];#memory_int := #memory_int[#t~string6.base,6 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 67];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 82];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 73];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 84];#memory_int := #memory_int[#t~string8.base,4 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 75];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 41];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 0];call #t~string23.base, #t~string23.offset := #Ultimate.alloc(13);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string25.base,#t~string25.offset := 79];#memory_int := #memory_int[#t~string25.base,1 + #t~string25.offset := 110];#memory_int := #memory_int[#t~string25.base,2 + #t~string25.offset := 0];call #t~string27.base, #t~string27.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string27.base,#t~string27.offset := 79];#memory_int := #memory_int[#t~string27.base,1 + #t~string27.offset := 102];#memory_int := #memory_int[#t~string27.base,2 + #t~string27.offset := 102];#memory_int := #memory_int[#t~string27.base,3 + #t~string27.offset := 0];call #t~string29.base, #t~string29.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string29.base,#t~string29.offset := 44];#memory_int := #memory_int[#t~string29.base,1 + #t~string29.offset := 80];#memory_int := #memory_int[#t~string29.base,2 + #t~string29.offset := 117];#memory_int := #memory_int[#t~string29.base,3 + #t~string29.offset := 109];#memory_int := #memory_int[#t~string29.base,4 + #t~string29.offset := 112];#memory_int := #memory_int[#t~string29.base,5 + #t~string29.offset := 58];#memory_int := #memory_int[#t~string29.base,6 + #t~string29.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string31.base,#t~string31.offset := 79];#memory_int := #memory_int[#t~string31.base,1 + #t~string31.offset := 110];#memory_int := #memory_int[#t~string31.base,2 + #t~string31.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 79];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 102];#memory_int := #memory_int[#t~string33.base,2 + #t~string33.offset := 102];#memory_int := #memory_int[#t~string33.base,3 + #t~string33.offset := 0];call #t~string35.base, #t~string35.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string35.base,#t~string35.offset := 41];#memory_int := #memory_int[#t~string35.base,1 + #t~string35.offset := 32];#memory_int := #memory_int[#t~string35.base,2 + #t~string35.offset := 0];call #t~string37.base, #t~string37.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string37.base,#t~string37.offset := 10];#memory_int := #memory_int[#t~string37.base,1 + #t~string37.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 9#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; 168#L651true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 130#L644true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 37#L659true main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 136#L132true assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 28#L103true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 104#L163true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 162#L315-3true [2018-11-18 16:25:21,273 INFO L796 eck$LassoCheckResult]: Loop: 162#L315-3true assume true; 194#L315-1true assume !false; 309#L316true assume test_~splverifierCounter~0 < 4; 90#L317true test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; 127#L325true assume !(0 != test_~tmp~2); 113#L325-2true test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; 146#L335true assume !(0 != test_~tmp___0~1); 142#L335-2true test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; 39#L345true assume 0 != test_~tmp___2~0; 14#L351-2true assume { :begin_inline_timeShift } true; 181#L381true assume !(0 != ~pumpRunning~0); 190#L381-2true assume !(0 != ~systemActive~0); 286#L388-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_#t~ret2, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 313#L244-5true __utac_acc__Specification2_spec__2_#t~ret1 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret1;havoc __utac_acc__Specification2_spec__2_#t~ret1; 107#L174true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 101#L174-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 148#L398true assume { :end_inline_timeShift } true; 162#L315-3true [2018-11-18 16:25:21,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:25:21,278 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 16:25:21,279 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:25:21,280 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:25:21,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:25:21,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:25:21,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:25:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:25:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:25:21,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:25:21,423 INFO L82 PathProgramCache]: Analyzing trace with hash 468382075, now seen corresponding path program 1 times [2018-11-18 16:25:21,423 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:25:21,424 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:25:21,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:25:21,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:25:21,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:25:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:25:21,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:25:21,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:25:21,438 INFO L82 PathProgramCache]: Analyzing trace with hash -267559502, now seen corresponding path program 1 times [2018-11-18 16:25:21,439 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:25:21,439 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:25:21,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:25:21,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:25:21,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:25:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:25:21,563 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 16:25:21,565 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:25:21,565 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 16:25:21,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 16:25:21,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 16:25:21,669 INFO L87 Difference]: Start difference. First operand 328 states. Second operand 6 states. [2018-11-18 16:25:21,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:25:21,899 INFO L93 Difference]: Finished difference Result 711 states and 942 transitions. [2018-11-18 16:25:21,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 16:25:21,902 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 711 states and 942 transitions. [2018-11-18 16:25:21,910 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 467 [2018-11-18 16:25:21,918 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 711 states to 681 states and 912 transitions. [2018-11-18 16:25:21,919 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 681 [2018-11-18 16:25:21,920 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 681 [2018-11-18 16:25:21,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 681 states and 912 transitions. [2018-11-18 16:25:21,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:25:21,924 INFO L705 BuchiCegarLoop]: Abstraction has 681 states and 912 transitions. [2018-11-18 16:25:21,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states and 912 transitions. [2018-11-18 16:25:21,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 372. [2018-11-18 16:25:21,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2018-11-18 16:25:21,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 498 transitions. [2018-11-18 16:25:21,962 INFO L728 BuchiCegarLoop]: Abstraction has 372 states and 498 transitions. [2018-11-18 16:25:21,962 INFO L608 BuchiCegarLoop]: Abstraction has 372 states and 498 transitions. [2018-11-18 16:25:21,962 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 16:25:21,963 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 372 states and 498 transitions. [2018-11-18 16:25:21,965 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 256 [2018-11-18 16:25:21,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:25:21,965 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:25:21,966 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:25:21,966 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:25:21,966 INFO L794 eck$LassoCheckResult]: Stem: 1264#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 44];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 77];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 101];#memory_int := #memory_int[#t~string6.base,3 + #t~string6.offset := 116];#memory_int := #memory_int[#t~string6.base,4 + #t~string6.offset := 104];#memory_int := #memory_int[#t~string6.base,5 + #t~string6.offset := 58];#memory_int := #memory_int[#t~string6.base,6 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 67];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 82];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 73];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 84];#memory_int := #memory_int[#t~string8.base,4 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 75];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 41];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 0];call #t~string23.base, #t~string23.offset := #Ultimate.alloc(13);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string25.base,#t~string25.offset := 79];#memory_int := #memory_int[#t~string25.base,1 + #t~string25.offset := 110];#memory_int := #memory_int[#t~string25.base,2 + #t~string25.offset := 0];call #t~string27.base, #t~string27.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string27.base,#t~string27.offset := 79];#memory_int := #memory_int[#t~string27.base,1 + #t~string27.offset := 102];#memory_int := #memory_int[#t~string27.base,2 + #t~string27.offset := 102];#memory_int := #memory_int[#t~string27.base,3 + #t~string27.offset := 0];call #t~string29.base, #t~string29.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string29.base,#t~string29.offset := 44];#memory_int := #memory_int[#t~string29.base,1 + #t~string29.offset := 80];#memory_int := #memory_int[#t~string29.base,2 + #t~string29.offset := 117];#memory_int := #memory_int[#t~string29.base,3 + #t~string29.offset := 109];#memory_int := #memory_int[#t~string29.base,4 + #t~string29.offset := 112];#memory_int := #memory_int[#t~string29.base,5 + #t~string29.offset := 58];#memory_int := #memory_int[#t~string29.base,6 + #t~string29.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string31.base,#t~string31.offset := 79];#memory_int := #memory_int[#t~string31.base,1 + #t~string31.offset := 110];#memory_int := #memory_int[#t~string31.base,2 + #t~string31.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 79];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 102];#memory_int := #memory_int[#t~string33.base,2 + #t~string33.offset := 102];#memory_int := #memory_int[#t~string33.base,3 + #t~string33.offset := 0];call #t~string35.base, #t~string35.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string35.base,#t~string35.offset := 41];#memory_int := #memory_int[#t~string35.base,1 + #t~string35.offset := 32];#memory_int := #memory_int[#t~string35.base,2 + #t~string35.offset := 0];call #t~string37.base, #t~string37.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string37.base,#t~string37.offset := 10];#memory_int := #memory_int[#t~string37.base,1 + #t~string37.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1071#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; 1072#L651 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1258#L644 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1123#L659 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1124#L132 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 1108#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1109#L163 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1235#L315-3 [2018-11-18 16:25:21,967 INFO L796 eck$LassoCheckResult]: Loop: 1235#L315-3 assume true; 1295#L315-1 assume !false; 1323#L316 assume test_~splverifierCounter~0 < 4; 1213#L317 test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; 1214#L325 assume !(0 != test_~tmp~2); 1096#L325-2 test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; 1245#L335 assume !(0 != test_~tmp___0~1); 1260#L335-2 test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; 1127#L345 assume 0 != test_~tmp___2~0; 1083#L351-2 assume { :begin_inline_timeShift } true; 1084#L381 assume !(0 != ~pumpRunning~0); 1228#L381-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1319#L465 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret21, isMethaneAlarm_~retValue_acc~5;havoc isMethaneAlarm_~retValue_acc~5;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 1371#L244 isMethaneAlarm_#t~ret21 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~5 := isMethaneAlarm_#t~ret21;havoc isMethaneAlarm_#t~ret21;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~5; 1352#L526 processEnvironment_#t~ret19 := isMethaneAlarm_#res;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~5 := processEnvironment_#t~ret19;havoc processEnvironment_#t~ret19; 1333#L469 assume 0 != processEnvironment_~tmp~5;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1102#L516-1 assume { :end_inline_deactivatePump } true; 1074#L465-1 assume { :end_inline_processEnvironment } true; 1364#L388-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_#t~ret2, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 1365#L244-5 __utac_acc__Specification2_spec__2_#t~ret1 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret1;havoc __utac_acc__Specification2_spec__2_#t~ret1; 1239#L174 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 1229#L174-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1230#L398 assume { :end_inline_timeShift } true; 1235#L315-3 [2018-11-18 16:25:21,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:25:21,967 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 16:25:21,967 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:25:21,967 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:25:21,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:25:21,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:25:21,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:25:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:25:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:25:22,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:25:22,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1766528388, now seen corresponding path program 1 times [2018-11-18 16:25:22,009 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:25:22,009 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:25:22,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:25:22,010 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:25:22,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:25:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:25:22,026 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 16:25:22,026 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:25:22,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 16:25:22,027 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 16:25:22,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 16:25:22,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 16:25:22,028 INFO L87 Difference]: Start difference. First operand 372 states and 498 transitions. cyclomatic complexity: 129 Second operand 3 states. [2018-11-18 16:25:22,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:25:22,151 INFO L93 Difference]: Finished difference Result 379 states and 482 transitions. [2018-11-18 16:25:22,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 16:25:22,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 379 states and 482 transitions. [2018-11-18 16:25:22,155 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 267 [2018-11-18 16:25:22,157 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 379 states to 379 states and 482 transitions. [2018-11-18 16:25:22,157 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 379 [2018-11-18 16:25:22,158 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 379 [2018-11-18 16:25:22,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 379 states and 482 transitions. [2018-11-18 16:25:22,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:25:22,159 INFO L705 BuchiCegarLoop]: Abstraction has 379 states and 482 transitions. [2018-11-18 16:25:22,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states and 482 transitions. [2018-11-18 16:25:22,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2018-11-18 16:25:22,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2018-11-18 16:25:22,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 482 transitions. [2018-11-18 16:25:22,169 INFO L728 BuchiCegarLoop]: Abstraction has 379 states and 482 transitions. [2018-11-18 16:25:22,170 INFO L608 BuchiCegarLoop]: Abstraction has 379 states and 482 transitions. [2018-11-18 16:25:22,170 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 16:25:22,170 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 379 states and 482 transitions. [2018-11-18 16:25:22,171 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 267 [2018-11-18 16:25:22,172 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:25:22,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:25:22,172 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:25:22,172 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 16:25:22,173 INFO L794 eck$LassoCheckResult]: Stem: 1979#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 44];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 77];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 101];#memory_int := #memory_int[#t~string6.base,3 + #t~string6.offset := 116];#memory_int := #memory_int[#t~string6.base,4 + #t~string6.offset := 104];#memory_int := #memory_int[#t~string6.base,5 + #t~string6.offset := 58];#memory_int := #memory_int[#t~string6.base,6 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 67];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 82];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 73];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 84];#memory_int := #memory_int[#t~string8.base,4 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 75];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 41];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 0];call #t~string23.base, #t~string23.offset := #Ultimate.alloc(13);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string25.base,#t~string25.offset := 79];#memory_int := #memory_int[#t~string25.base,1 + #t~string25.offset := 110];#memory_int := #memory_int[#t~string25.base,2 + #t~string25.offset := 0];call #t~string27.base, #t~string27.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string27.base,#t~string27.offset := 79];#memory_int := #memory_int[#t~string27.base,1 + #t~string27.offset := 102];#memory_int := #memory_int[#t~string27.base,2 + #t~string27.offset := 102];#memory_int := #memory_int[#t~string27.base,3 + #t~string27.offset := 0];call #t~string29.base, #t~string29.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string29.base,#t~string29.offset := 44];#memory_int := #memory_int[#t~string29.base,1 + #t~string29.offset := 80];#memory_int := #memory_int[#t~string29.base,2 + #t~string29.offset := 117];#memory_int := #memory_int[#t~string29.base,3 + #t~string29.offset := 109];#memory_int := #memory_int[#t~string29.base,4 + #t~string29.offset := 112];#memory_int := #memory_int[#t~string29.base,5 + #t~string29.offset := 58];#memory_int := #memory_int[#t~string29.base,6 + #t~string29.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string31.base,#t~string31.offset := 79];#memory_int := #memory_int[#t~string31.base,1 + #t~string31.offset := 110];#memory_int := #memory_int[#t~string31.base,2 + #t~string31.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 79];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 102];#memory_int := #memory_int[#t~string33.base,2 + #t~string33.offset := 102];#memory_int := #memory_int[#t~string33.base,3 + #t~string33.offset := 0];call #t~string35.base, #t~string35.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string35.base,#t~string35.offset := 41];#memory_int := #memory_int[#t~string35.base,1 + #t~string35.offset := 32];#memory_int := #memory_int[#t~string35.base,2 + #t~string35.offset := 0];call #t~string37.base, #t~string37.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string37.base,#t~string37.offset := 10];#memory_int := #memory_int[#t~string37.base,1 + #t~string37.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1829#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; 1830#L651 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1973#L644 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1870#L659 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1871#L132 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 1858#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1859#L163 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1953#L315-3 [2018-11-18 16:25:22,173 INFO L796 eck$LassoCheckResult]: Loop: 1953#L315-3 assume true; 2006#L315-1 assume !false; 2153#L316 assume test_~splverifierCounter~0 < 4; 1939#L317 test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; 1940#L325 assume !(0 != test_~tmp~2); 1846#L325-2 test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; 1962#L335 assume !(0 != test_~tmp___0~1); 1975#L335-2 test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; 1874#L345 assume 0 != test_~tmp___2~0; 1867#L351-2 assume { :begin_inline_timeShift } true; 2022#L381 assume !(0 != ~pumpRunning~0); 2023#L381-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 2029#L465 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret18, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1864#L439-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 1865#L413-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret38, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; 1958#L284-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; 1959#L289-3 isHighWaterLevel_#t~ret38 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret38;havoc isHighWaterLevel_#t~ret38; 2057#L584-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 2049#L584-11 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 2042#L590-3 processEnvironment__wrappee__highWaterSensor_#t~ret17 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret17;havoc processEnvironment__wrappee__highWaterSensor_#t~ret17; 1818#L417-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3);assume { :begin_inline_processEnvironment__wrappee__base } true; 1820#L405-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1961#L413-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1827#L439-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1828#L465-1 assume { :end_inline_processEnvironment } true; 2074#L388-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_#t~ret2, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 2075#L244-5 __utac_acc__Specification2_spec__2_#t~ret1 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret1;havoc __utac_acc__Specification2_spec__2_#t~ret1; 1954#L174 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 1948#L174-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1949#L398 assume { :end_inline_timeShift } true; 1953#L315-3 [2018-11-18 16:25:22,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:25:22,173 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 16:25:22,173 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:25:22,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:25:22,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:25:22,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:25:22,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:25:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:25:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:25:22,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:25:22,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1243699975, now seen corresponding path program 1 times [2018-11-18 16:25:22,208 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:25:22,208 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:25:22,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:25:22,209 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:25:22,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:25:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:25:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:25:22,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:25:22,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1085409826, now seen corresponding path program 1 times [2018-11-18 16:25:22,218 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:25:22,218 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:25:22,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:25:22,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:25:22,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:25:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:25:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:25:22,386 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2018-11-18 16:25:59,947 WARN L180 SmtUtils]: Spent 37.51 s on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 16:26:25,635 WARN L180 SmtUtils]: Spent 25.68 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 16:26:25,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 04:26:25 BoogieIcfgContainer [2018-11-18 16:26:25,700 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 16:26:25,701 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:26:25,701 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:26:25,701 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:26:25,701 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:25:21" (3/4) ... [2018-11-18 16:26:25,704 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 16:26:25,748 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c0e4beff-13cc-4d5e-a951-bf4516bbd88d/bin-2019/uautomizer/witness.graphml [2018-11-18 16:26:25,749 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:26:25,749 INFO L168 Benchmark]: Toolchain (without parser) took 65915.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 956.6 MB in the beginning and 874.9 MB in the end (delta: 81.7 MB). Peak memory consumption was 247.9 MB. Max. memory is 11.5 GB. [2018-11-18 16:26:25,750 INFO L168 Benchmark]: CDTParser took 0.16 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 16:26:25,750 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-11-18 16:26:25,750 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:26:25,751 INFO L168 Benchmark]: Boogie Preprocessor took 43.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:26:25,751 INFO L168 Benchmark]: RCFGBuilder took 838.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 103.1 MB). Peak memory consumption was 103.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:26:25,751 INFO L168 Benchmark]: BuchiAutomizer took 64539.64 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 32.5 MB). Free memory was 1.0 GB in the beginning and 879.5 MB in the end (delta: 126.4 MB). Peak memory consumption was 166.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:26:25,751 INFO L168 Benchmark]: Witness Printer took 47.97 ms. Allocated memory is still 1.2 GB. Free memory was 879.5 MB in the beginning and 874.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:26:25,753 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 383.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 838.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 103.1 MB). Peak memory consumption was 103.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 64539.64 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 32.5 MB). Free memory was 1.0 GB in the beginning and 879.5 MB in the end (delta: 126.4 MB). Peak memory consumption was 166.3 MB. Max. memory is 11.5 GB. * Witness Printer took 47.97 ms. Allocated memory is still 1.2 GB. Free memory was 879.5 MB in the beginning and 874.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 379 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 64.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 63.9s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 309 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 379 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 745 SDtfs, 1914 SDslu, 1733 SDs, 0 SdLazy, 85 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 315]: 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 {retValue_acc=0, NULL=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, "OK"=20, "libacc.c"=0, retValue_acc=0, "i > 0 && i <= this->argsCount"=38, "__utac__get_this_arg"=0, "libacc.c"=0, "libacc.c"=29, "libacc.c"=39, "__utac__get_this_arg"=28, methaneLevelCritical=0, "CRIT"=22, "\n"=11, tmp___0=0, retValue_acc=1, tmp=0, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, "Off"=12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ecab9b6=0, "i > 0 && i <= this->argsCount"=26, retValue_acc=0, tmp___1=0, ",Pump:"=15, "Pump(System:"=18, "Env(Water:%i"=0, "CRIT"=0, ",Meth:"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59ac1735=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@238e1af7=0, cleanupTimeShifts=4, "On"=17, "On"=14, "On"=0, "Pump(System:"=0, "Off"=0, ",Pump:"=0, NULL=0, systemActive=1, waterLevel=1, "libacc.c"=27, ")"=0, ")"=19, \result=0, "OK"=0, "libacc.c"=34, "Env(Water:%i"=24, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43dce12d=0, "__utac__get_this_argtype"=0, ") "=0, "Off"=0, ") "=8, \result=1, tmp___0=0, "__utac__get_this_arg"=33, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=0, tmp=1, tmp___2=159, tmp___0=0, splverifierCounter=0, "i > 0 && i <= this->argsCount"=0, methAndRunningLastTime=0, \result=0, "__utac__get_this_argtype"=40, ",Meth:"=23, "__utac__get_this_argtype"=37, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c0a9317=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ecea354=159, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fc57b52=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b8c72e8=0, "i > 0 && i <= this->argsCount"=35, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@222a9ab1=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@139f4136=0, tmp=0, "Off"=16, "\n"=0, "On"=0, tmp=0, "i > 0 && i <= this->argsCount"=31, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a75f3bd=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 315]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L253] FCALL "Env(Water:%i" [L254] FCALL ",Meth:" [L258] FCALL "CRIT" [L262] FCALL "OK" [L266] FCALL ")" [L544] FCALL "Pump(System:" [L548] FCALL "On" [L552] FCALL "Off" [L556] FCALL ",Pump:" [L560] FCALL "On" [L564] FCALL "Off" [L568] FCALL ") " [L570] FCALL "\n" [L961] FCALL "i > 0 && i <= this->argsCount" [L961] FCALL "libacc.c" [L962] FCALL "__utac__get_this_arg" [L968] FCALL "i > 0 && i <= this->argsCount" [L968] FCALL "libacc.c" [L969] FCALL "__utac__get_this_arg" [L1007] FCALL "i > 0 && i <= this->argsCount" [L1007] FCALL "libacc.c" [L1008] FCALL "__utac__get_this_argtype" [L1014] FCALL "i > 0 && i <= this->argsCount" [L1014] FCALL "libacc.c" [L1015] FCALL "__utac__get_this_argtype" [L40] int cleanupTimeShifts = 4; [L157] int methAndRunningLastTime ; [L201] int waterLevel = 1; [L202] int methaneLevelCritical = 0; [L374] int pumpRunning = 0; [L375] int systemActive = 1; [L833] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L655] int retValue_acc ; [L658] retValue_acc = 1 [L659] RET return (retValue_acc); [L130] EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L113] CALL __utac_acc__Specification2_spec__1() [L162] RET methAndRunningLastTime = 0 [L113] __utac_acc__Specification2_spec__1() [L114] CALL test() [L306] int splverifierCounter ; [L307] int tmp ; [L308] int tmp___0 ; [L309] int tmp___1 ; [L310] int tmp___2 ; [L313] splverifierCounter = 0 Loop: [L315] COND TRUE 1 [L317] COND TRUE splverifierCounter < 4 [L323] tmp = __VERIFIER_nondet_int() [L325] COND FALSE !(\read(tmp)) [L333] tmp___0 = __VERIFIER_nondet_int() [L335] COND FALSE !(\read(tmp___0)) [L343] tmp___2 = __VERIFIER_nondet_int() [L345] COND TRUE \read(tmp___2) [L360] CALL timeShift() [L381] COND FALSE !(\read(pumpRunning)) [L388] COND TRUE \read(systemActive) [L390] CALL processEnvironment() [L462] int tmp ; [L465] COND FALSE !(\read(pumpRunning)) [L480] CALL processEnvironment__wrappee__methaneQuery() [L436] int tmp ; [L439] COND FALSE !(\read(pumpRunning)) [L454] CALL processEnvironment__wrappee__highWaterSensor() [L410] int tmp ; [L413] COND TRUE ! pumpRunning [L415] CALL, EXPR isHighWaterLevel() [L576] int retValue_acc ; [L577] int tmp ; [L578] int tmp___0 ; [L582] CALL, EXPR isHighWaterSensorDry() [L281] int retValue_acc ; [L284] COND TRUE waterLevel < 2 [L285] retValue_acc = 1 [L286] RET return (retValue_acc); [L582] EXPR isHighWaterSensorDry() [L582] tmp = isHighWaterSensorDry() [L584] COND TRUE \read(tmp) [L585] tmp___0 = 0 [L589] retValue_acc = tmp___0 [L590] RET return (retValue_acc); [L415] EXPR isHighWaterLevel() [L415] tmp = isHighWaterLevel() [L417] COND FALSE !(\read(tmp)) [L423] RET, FCALL processEnvironment__wrappee__base() [L454] RET processEnvironment__wrappee__highWaterSensor() [L480] RET processEnvironment__wrappee__methaneQuery() [L390] processEnvironment() [L396] CALL __utac_acc__Specification2_spec__2() [L167] int tmp ; [L168] int tmp___0 ; [L172] CALL, EXPR isMethaneLevelCritical() [L240] int retValue_acc ; [L243] retValue_acc = methaneLevelCritical [L244] RET return (retValue_acc); [L172] EXPR isMethaneLevelCritical() [L172] tmp = isMethaneLevelCritical() [L174] COND FALSE !(\read(tmp)) [L190] RET methAndRunningLastTime = 0 [L396] RET __utac_acc__Specification2_spec__2() [L360] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...