./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product56_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_b2b9d707-6709-4239-9c2f-58cdf2e33e57/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b2b9d707-6709-4239-9c2f-58cdf2e33e57/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b2b9d707-6709-4239-9c2f-58cdf2e33e57/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b2b9d707-6709-4239-9c2f-58cdf2e33e57/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product56_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b2b9d707-6709-4239-9c2f-58cdf2e33e57/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b2b9d707-6709-4239-9c2f-58cdf2e33e57/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 730b837dafcd2995b5acc94906fc5437a0c170a6 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:09:42,147 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:09:42,148 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:09:42,155 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:09:42,155 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:09:42,155 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:09:42,156 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:09:42,157 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:09:42,158 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:09:42,158 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:09:42,159 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:09:42,159 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:09:42,160 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:09:42,160 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:09:42,161 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:09:42,162 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:09:42,162 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:09:42,163 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:09:42,165 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:09:42,165 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:09:42,166 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:09:42,167 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:09:42,168 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:09:42,168 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:09:42,169 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:09:42,169 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:09:42,170 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:09:42,170 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:09:42,171 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:09:42,171 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:09:42,171 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:09:42,172 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:09:42,172 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:09:42,172 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:09:42,173 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:09:42,173 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:09:42,173 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b2b9d707-6709-4239-9c2f-58cdf2e33e57/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 09:09:42,181 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:09:42,182 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:09:42,182 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:09:42,182 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:09:42,183 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 09:09:42,183 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 09:09:42,183 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 09:09:42,183 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 09:09:42,183 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 09:09:42,183 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 09:09:42,183 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 09:09:42,184 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:09:42,184 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:09:42,184 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 09:09:42,184 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:09:42,184 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:09:42,184 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:09:42,184 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 09:09:42,184 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 09:09:42,185 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 09:09:42,185 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:09:42,185 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:09:42,185 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 09:09:42,185 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:09:42,185 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 09:09:42,185 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:09:42,185 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:09:42,185 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 09:09:42,186 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:09:42,186 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 09:09:42,186 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 09:09:42,186 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 09:09:42,187 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_b2b9d707-6709-4239-9c2f-58cdf2e33e57/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 -> 730b837dafcd2995b5acc94906fc5437a0c170a6 [2018-11-18 09:09:42,209 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:09:42,218 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:09:42,220 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:09:42,221 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:09:42,221 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:09:42,222 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b2b9d707-6709-4239-9c2f-58cdf2e33e57/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product56_true-unreach-call_false-termination.cil.c [2018-11-18 09:09:42,265 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b2b9d707-6709-4239-9c2f-58cdf2e33e57/bin-2019/uautomizer/data/881dd5cd9/70f5af1d49fc43738e718ca44965a241/FLAGd969c8275 [2018-11-18 09:09:42,653 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:09:42,654 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b2b9d707-6709-4239-9c2f-58cdf2e33e57/sv-benchmarks/c/product-lines/minepump_spec2_product56_true-unreach-call_false-termination.cil.c [2018-11-18 09:09:42,665 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b2b9d707-6709-4239-9c2f-58cdf2e33e57/bin-2019/uautomizer/data/881dd5cd9/70f5af1d49fc43738e718ca44965a241/FLAGd969c8275 [2018-11-18 09:09:43,028 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b2b9d707-6709-4239-9c2f-58cdf2e33e57/bin-2019/uautomizer/data/881dd5cd9/70f5af1d49fc43738e718ca44965a241 [2018-11-18 09:09:43,030 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:09:43,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:09:43,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:09:43,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:09:43,035 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:09:43,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:09:43" (1/1) ... [2018-11-18 09:09:43,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f938bda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:43, skipping insertion in model container [2018-11-18 09:09:43,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:09:43" (1/1) ... [2018-11-18 09:09:43,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:09:43,075 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:09:43,269 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:09:43,279 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:09:43,386 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:09:43,402 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:09:43,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:43 WrapperNode [2018-11-18 09:09:43,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:09:43,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:09:43,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:09:43,403 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:09:43,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:43" (1/1) ... [2018-11-18 09:09:43,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:43" (1/1) ... [2018-11-18 09:09:43,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:09:43,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:09:43,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:09:43,447 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:09:43,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:43" (1/1) ... [2018-11-18 09:09:43,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:43" (1/1) ... [2018-11-18 09:09:43,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:43" (1/1) ... [2018-11-18 09:09:43,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:43" (1/1) ... [2018-11-18 09:09:43,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:43" (1/1) ... [2018-11-18 09:09:43,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:43" (1/1) ... [2018-11-18 09:09:43,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:43" (1/1) ... [2018-11-18 09:09:43,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:09:43,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:09:43,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:09:43,484 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:09:43,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b2b9d707-6709-4239-9c2f-58cdf2e33e57/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 09:09:43,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:09:43,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:09:43,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:09:44,310 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:09:44,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:09:44 BoogieIcfgContainer [2018-11-18 09:09:44,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:09:44,311 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 09:09:44,312 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 09:09:44,314 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 09:09:44,315 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:09:44,315 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 09:09:43" (1/3) ... [2018-11-18 09:09:44,316 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ffc7210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:09:44, skipping insertion in model container [2018-11-18 09:09:44,316 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:09:44,316 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:43" (2/3) ... [2018-11-18 09:09:44,316 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ffc7210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:09:44, skipping insertion in model container [2018-11-18 09:09:44,317 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:09:44,317 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:09:44" (3/3) ... [2018-11-18 09:09:44,318 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product56_true-unreach-call_false-termination.cil.c [2018-11-18 09:09:44,362 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:09:44,363 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 09:09:44,363 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 09:09:44,363 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 09:09:44,363 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:09:44,363 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:09:44,364 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 09:09:44,364 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:09:44,364 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 09:09:44,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 281 states. [2018-11-18 09:09:44,413 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 185 [2018-11-18 09:09:44,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:09:44,413 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:09:44,421 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:09:44,422 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:09:44,422 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 09:09:44,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 281 states. [2018-11-18 09:09:44,428 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 185 [2018-11-18 09:09:44,428 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:09:44,428 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:09:44,429 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:09:44,429 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:09:44,432 INFO L794 eck$LassoCheckResult]: Stem: 113#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(13);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string38.base,#t~string38.offset := 44];#memory_int := #memory_int[#t~string38.base,1 + #t~string38.offset := 77];#memory_int := #memory_int[#t~string38.base,2 + #t~string38.offset := 101];#memory_int := #memory_int[#t~string38.base,3 + #t~string38.offset := 116];#memory_int := #memory_int[#t~string38.base,4 + #t~string38.offset := 104];#memory_int := #memory_int[#t~string38.base,5 + #t~string38.offset := 58];#memory_int := #memory_int[#t~string38.base,6 + #t~string38.offset := 0];call #t~string40.base, #t~string40.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string40.base,#t~string40.offset := 67];#memory_int := #memory_int[#t~string40.base,1 + #t~string40.offset := 82];#memory_int := #memory_int[#t~string40.base,2 + #t~string40.offset := 73];#memory_int := #memory_int[#t~string40.base,3 + #t~string40.offset := 84];#memory_int := #memory_int[#t~string40.base,4 + #t~string40.offset := 0];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 := 75];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 41];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 110];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,3 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 44];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 80];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 117];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 109];#memory_int := #memory_int[#t~string58.base,4 + #t~string58.offset := 112];#memory_int := #memory_int[#t~string58.base,5 + #t~string58.offset := 58];#memory_int := #memory_int[#t~string58.base,6 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 79];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 110];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 41];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 32];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 10];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~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~ret74, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 159#L913true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 234#L906true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 164#L921true main_#t~ret74 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret74;havoc main_#t~ret74; 169#L1009true assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 127#L985true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 5#L533true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 75#L829-3true [2018-11-18 09:09:44,433 INFO L796 eck$LassoCheckResult]: Loop: 75#L829-3true assume true; 72#L829-1true assume !false; 11#L830true assume test_~splverifierCounter~0 < 4; 139#L831true test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 279#L839true assume !(0 != test_~tmp~9); 282#L839-2true test_~tmp___0~3 := test_#t~nondet70;havoc test_#t~nondet70; 178#L849true assume !(0 != test_~tmp___0~3); 182#L849-2true test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 99#L859true assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 146#L814true assume { :end_inline_startSystem } true; 250#L867-2true assume { :begin_inline_timeShift } true; 184#L579true assume !(0 != ~pumpRunning~0); 188#L579-2true assume !(0 != ~systemActive~0); 257#L586-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret45, __utac_acc__Specification2_spec__2_#t~ret46, __utac_acc__Specification2_spec__2_~tmp~3, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~3;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 46#L466-1true __utac_acc__Specification2_spec__2_#t~ret45 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3 := __utac_acc__Specification2_spec__2_#t~ret45;havoc __utac_acc__Specification2_spec__2_#t~ret45; 4#L544true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3);~methAndRunningLastTime~0 := 0; 7#L544-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 166#L596true assume { :end_inline_timeShift } true; 75#L829-3true [2018-11-18 09:09:44,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:09:44,438 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 09:09:44,440 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:09:44,440 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:09:44,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:44,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:09:44,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:09:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:09:44,605 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:09:44,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1584849849, now seen corresponding path program 1 times [2018-11-18 09:09:44,605 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:09:44,605 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:09:44,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:44,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:09:44,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:09:44,649 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 09:09:44,651 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:09:44,651 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:09:44,655 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 09:09:44,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:09:44,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:09:44,669 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 3 states. [2018-11-18 09:09:44,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:09:44,770 INFO L93 Difference]: Finished difference Result 546 states and 734 transitions. [2018-11-18 09:09:44,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:09:44,773 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 546 states and 734 transitions. [2018-11-18 09:09:44,782 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 360 [2018-11-18 09:09:44,791 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 546 states to 526 states and 713 transitions. [2018-11-18 09:09:44,792 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 526 [2018-11-18 09:09:44,794 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 526 [2018-11-18 09:09:44,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 526 states and 713 transitions. [2018-11-18 09:09:44,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:09:44,797 INFO L705 BuchiCegarLoop]: Abstraction has 526 states and 713 transitions. [2018-11-18 09:09:44,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states and 713 transitions. [2018-11-18 09:09:44,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 523. [2018-11-18 09:09:44,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2018-11-18 09:09:44,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 709 transitions. [2018-11-18 09:09:44,846 INFO L728 BuchiCegarLoop]: Abstraction has 523 states and 709 transitions. [2018-11-18 09:09:44,846 INFO L608 BuchiCegarLoop]: Abstraction has 523 states and 709 transitions. [2018-11-18 09:09:44,846 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 09:09:44,847 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 523 states and 709 transitions. [2018-11-18 09:09:44,850 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 357 [2018-11-18 09:09:44,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:09:44,851 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:09:44,852 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:09:44,852 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:09:44,852 INFO L794 eck$LassoCheckResult]: Stem: 1011#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(13);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string38.base,#t~string38.offset := 44];#memory_int := #memory_int[#t~string38.base,1 + #t~string38.offset := 77];#memory_int := #memory_int[#t~string38.base,2 + #t~string38.offset := 101];#memory_int := #memory_int[#t~string38.base,3 + #t~string38.offset := 116];#memory_int := #memory_int[#t~string38.base,4 + #t~string38.offset := 104];#memory_int := #memory_int[#t~string38.base,5 + #t~string38.offset := 58];#memory_int := #memory_int[#t~string38.base,6 + #t~string38.offset := 0];call #t~string40.base, #t~string40.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string40.base,#t~string40.offset := 67];#memory_int := #memory_int[#t~string40.base,1 + #t~string40.offset := 82];#memory_int := #memory_int[#t~string40.base,2 + #t~string40.offset := 73];#memory_int := #memory_int[#t~string40.base,3 + #t~string40.offset := 84];#memory_int := #memory_int[#t~string40.base,4 + #t~string40.offset := 0];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 := 75];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 41];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 110];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,3 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 44];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 80];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 117];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 109];#memory_int := #memory_int[#t~string58.base,4 + #t~string58.offset := 112];#memory_int := #memory_int[#t~string58.base,5 + #t~string58.offset := 58];#memory_int := #memory_int[#t~string58.base,6 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 79];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 110];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 41];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 32];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 10];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 850#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 851#L913 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1067#L906 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 1071#L921 main_#t~ret74 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret74;havoc main_#t~ret74; 1072#L1009 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 1033#L985 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 842#L533 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 843#L829-3 [2018-11-18 09:09:44,853 INFO L796 eck$LassoCheckResult]: Loop: 843#L829-3 assume true; 955#L829-1 assume !false; 854#L830 assume test_~splverifierCounter~0 < 4; 855#L831 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 1047#L839 assume !(0 != test_~tmp~9); 1169#L839-2 test_~tmp___0~3 := test_#t~nondet70;havoc test_#t~nondet70; 1167#L849 assume !(0 != test_~tmp___0~3); 1165#L849-2 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 1164#L859 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet72;havoc test_#t~nondet72; 1128#L867 assume !(0 != test_~tmp___1~0); 1054#L867-2 assume { :begin_inline_timeShift } true; 1162#L579 assume !(0 != ~pumpRunning~0); 1087#L579-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1088#L663 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret50, isMethaneAlarm_~retValue_acc~7;havoc isMethaneAlarm_~retValue_acc~7;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 1192#L466 isMethaneAlarm_#t~ret50 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~7 := isMethaneAlarm_#t~ret50;havoc isMethaneAlarm_#t~ret50;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~7; 1191#L707 processEnvironment_#t~ret49 := isMethaneAlarm_#res;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~6 := processEnvironment_#t~ret49;havoc processEnvironment_#t~ret49; 1095#L667 assume 0 != processEnvironment_~tmp~6;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 941#L697-1 assume { :end_inline_deactivatePump } true; 896#L663-1 assume { :end_inline_processEnvironment } true; 1137#L586-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret45, __utac_acc__Specification2_spec__2_#t~ret46, __utac_acc__Specification2_spec__2_~tmp~3, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~3;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 924#L466-1 __utac_acc__Specification2_spec__2_#t~ret45 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3 := __utac_acc__Specification2_spec__2_#t~ret45;havoc __utac_acc__Specification2_spec__2_#t~ret45; 839#L544 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3);~methAndRunningLastTime~0 := 0; 840#L544-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 847#L596 assume { :end_inline_timeShift } true; 843#L829-3 [2018-11-18 09:09:44,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:09:44,853 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 09:09:44,854 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:09:44,854 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:09:44,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:44,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:09:44,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:09:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:09:44,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:09:44,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1373494768, now seen corresponding path program 1 times [2018-11-18 09:09:44,926 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:09:44,926 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:09:44,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:44,928 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:09:44,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:09:44,963 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 09:09:44,963 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:09:44,964 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:09:44,964 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 09:09:44,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:09:44,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:09:44,965 INFO L87 Difference]: Start difference. First operand 523 states and 709 transitions. cyclomatic complexity: 189 Second operand 3 states. [2018-11-18 09:09:45,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:09:45,093 INFO L93 Difference]: Finished difference Result 555 states and 716 transitions. [2018-11-18 09:09:45,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:09:45,095 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 555 states and 716 transitions. [2018-11-18 09:09:45,100 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 391 [2018-11-18 09:09:45,104 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 555 states to 555 states and 716 transitions. [2018-11-18 09:09:45,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 555 [2018-11-18 09:09:45,105 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 555 [2018-11-18 09:09:45,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 555 states and 716 transitions. [2018-11-18 09:09:45,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:09:45,107 INFO L705 BuchiCegarLoop]: Abstraction has 555 states and 716 transitions. [2018-11-18 09:09:45,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states and 716 transitions. [2018-11-18 09:09:45,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2018-11-18 09:09:45,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2018-11-18 09:09:45,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 716 transitions. [2018-11-18 09:09:45,124 INFO L728 BuchiCegarLoop]: Abstraction has 555 states and 716 transitions. [2018-11-18 09:09:45,124 INFO L608 BuchiCegarLoop]: Abstraction has 555 states and 716 transitions. [2018-11-18 09:09:45,124 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 09:09:45,125 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 555 states and 716 transitions. [2018-11-18 09:09:45,128 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 391 [2018-11-18 09:09:45,128 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:09:45,129 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:09:45,129 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:09:45,130 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:09:45,130 INFO L794 eck$LassoCheckResult]: Stem: 2058#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(13);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string38.base,#t~string38.offset := 44];#memory_int := #memory_int[#t~string38.base,1 + #t~string38.offset := 77];#memory_int := #memory_int[#t~string38.base,2 + #t~string38.offset := 101];#memory_int := #memory_int[#t~string38.base,3 + #t~string38.offset := 116];#memory_int := #memory_int[#t~string38.base,4 + #t~string38.offset := 104];#memory_int := #memory_int[#t~string38.base,5 + #t~string38.offset := 58];#memory_int := #memory_int[#t~string38.base,6 + #t~string38.offset := 0];call #t~string40.base, #t~string40.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string40.base,#t~string40.offset := 67];#memory_int := #memory_int[#t~string40.base,1 + #t~string40.offset := 82];#memory_int := #memory_int[#t~string40.base,2 + #t~string40.offset := 73];#memory_int := #memory_int[#t~string40.base,3 + #t~string40.offset := 84];#memory_int := #memory_int[#t~string40.base,4 + #t~string40.offset := 0];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 := 75];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 41];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 110];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,3 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 44];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 80];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 117];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 109];#memory_int := #memory_int[#t~string58.base,4 + #t~string58.offset := 112];#memory_int := #memory_int[#t~string58.base,5 + #t~string58.offset := 58];#memory_int := #memory_int[#t~string58.base,6 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 79];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 110];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 41];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 32];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 10];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1931#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 1932#L913 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2109#L906 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 2115#L921 main_#t~ret74 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret74;havoc main_#t~ret74; 2116#L1009 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 2076#L985 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1926#L533 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1927#L829-3 [2018-11-18 09:09:45,131 INFO L796 eck$LassoCheckResult]: Loop: 1927#L829-3 assume true; 2233#L829-1 assume !false; 2228#L830 assume test_~splverifierCounter~0 < 4; 2229#L831 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 2222#L839 assume !(0 != test_~tmp~9); 2221#L839-2 test_~tmp___0~3 := test_#t~nondet70;havoc test_#t~nondet70; 2214#L849 assume !(0 != test_~tmp___0~3); 2213#L849-2 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 2208#L859 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2096#L814 assume { :end_inline_startSystem } true; 2097#L867-2 assume { :begin_inline_timeShift } true; 2184#L579 assume !(0 != ~pumpRunning~0); 2142#L579-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 2143#L663 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret48, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 2281#L637-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret47, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 2038#L611-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret67, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 2039#L506-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~5 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 2082#L511-3 isHighWaterLevel_#t~ret67 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret67;havoc isHighWaterLevel_#t~ret67; 2036#L765-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 2037#L765-11 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 2031#L771-3 processEnvironment__wrappee__highWaterSensor_#t~ret47 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret47;havoc processEnvironment__wrappee__highWaterSensor_#t~ret47; 1938#L615-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4);assume { :begin_inline_processEnvironment__wrappee__base } true; 1939#L603-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2040#L611-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2041#L637-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 2199#L663-1 assume { :end_inline_processEnvironment } true; 2200#L586-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret45, __utac_acc__Specification2_spec__2_#t~ret46, __utac_acc__Specification2_spec__2_~tmp~3, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~3;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 1990#L466-1 __utac_acc__Specification2_spec__2_#t~ret45 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3 := __utac_acc__Specification2_spec__2_#t~ret45;havoc __utac_acc__Specification2_spec__2_#t~ret45; 1991#L544 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3);~methAndRunningLastTime~0 := 0; 2236#L544-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2237#L596 assume { :end_inline_timeShift } true; 1927#L829-3 [2018-11-18 09:09:45,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:09:45,132 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 09:09:45,132 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:09:45,132 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:09:45,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:45,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:09:45,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:09:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:09:45,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:09:45,185 INFO L82 PathProgramCache]: Analyzing trace with hash -494530061, now seen corresponding path program 1 times [2018-11-18 09:09:45,185 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:09:45,185 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:09:45,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:45,187 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:09:45,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:09:45,235 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 09:09:45,235 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:09:45,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:09:45,236 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 09:09:45,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 09:09:45,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:09:45,236 INFO L87 Difference]: Start difference. First operand 555 states and 716 transitions. cyclomatic complexity: 164 Second operand 4 states. [2018-11-18 09:09:45,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:09:45,361 INFO L93 Difference]: Finished difference Result 1577 states and 1988 transitions. [2018-11-18 09:09:45,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 09:09:45,362 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1577 states and 1988 transitions. [2018-11-18 09:09:45,370 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1125 [2018-11-18 09:09:45,376 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1577 states to 1577 states and 1988 transitions. [2018-11-18 09:09:45,376 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1577 [2018-11-18 09:09:45,377 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1577 [2018-11-18 09:09:45,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1577 states and 1988 transitions. [2018-11-18 09:09:45,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:09:45,380 INFO L705 BuchiCegarLoop]: Abstraction has 1577 states and 1988 transitions. [2018-11-18 09:09:45,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1577 states and 1988 transitions. [2018-11-18 09:09:45,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1577 to 591. [2018-11-18 09:09:45,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2018-11-18 09:09:45,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 752 transitions. [2018-11-18 09:09:45,394 INFO L728 BuchiCegarLoop]: Abstraction has 591 states and 752 transitions. [2018-11-18 09:09:45,394 INFO L608 BuchiCegarLoop]: Abstraction has 591 states and 752 transitions. [2018-11-18 09:09:45,394 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 09:09:45,395 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 591 states and 752 transitions. [2018-11-18 09:09:45,397 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 415 [2018-11-18 09:09:45,397 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:09:45,397 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:09:45,398 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:09:45,398 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:09:45,399 INFO L794 eck$LassoCheckResult]: Stem: 4206#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(13);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string38.base,#t~string38.offset := 44];#memory_int := #memory_int[#t~string38.base,1 + #t~string38.offset := 77];#memory_int := #memory_int[#t~string38.base,2 + #t~string38.offset := 101];#memory_int := #memory_int[#t~string38.base,3 + #t~string38.offset := 116];#memory_int := #memory_int[#t~string38.base,4 + #t~string38.offset := 104];#memory_int := #memory_int[#t~string38.base,5 + #t~string38.offset := 58];#memory_int := #memory_int[#t~string38.base,6 + #t~string38.offset := 0];call #t~string40.base, #t~string40.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string40.base,#t~string40.offset := 67];#memory_int := #memory_int[#t~string40.base,1 + #t~string40.offset := 82];#memory_int := #memory_int[#t~string40.base,2 + #t~string40.offset := 73];#memory_int := #memory_int[#t~string40.base,3 + #t~string40.offset := 84];#memory_int := #memory_int[#t~string40.base,4 + #t~string40.offset := 0];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 := 75];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 41];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 110];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,3 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 44];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 80];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 117];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 109];#memory_int := #memory_int[#t~string58.base,4 + #t~string58.offset := 112];#memory_int := #memory_int[#t~string58.base,5 + #t~string58.offset := 58];#memory_int := #memory_int[#t~string58.base,6 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 79];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 110];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 41];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 32];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 10];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 4074#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 4075#L913 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4275#L906 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 4283#L921 main_#t~ret74 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret74;havoc main_#t~ret74; 4284#L1009 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 4229#L985 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 4068#L533 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 4069#L829-3 [2018-11-18 09:09:45,399 INFO L796 eck$LassoCheckResult]: Loop: 4069#L829-3 assume true; 4495#L829-1 assume !false; 4078#L830 assume test_~splverifierCounter~0 < 4; 4079#L831 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 4250#L839 assume !(0 != test_~tmp~9); 4330#L839-2 test_~tmp___0~3 := test_#t~nondet70;havoc test_#t~nondet70; 4371#L849 assume !(0 != test_~tmp___0~3); 4301#L849-2 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 4302#L859 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 4192#L814 assume { :end_inline_startSystem } true; 4257#L867-2 assume { :begin_inline_timeShift } true; 4486#L579 assume !(0 != ~pumpRunning~0); 4444#L579-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 4483#L663 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret48, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 4476#L637-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret47, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 4468#L611-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret67, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 4237#L506-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~5 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 4238#L511-3 isHighWaterLevel_#t~ret67 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret67;havoc isHighWaterLevel_#t~ret67; 4184#L765-9 assume !(0 != isHighWaterLevel_~tmp~7);isHighWaterLevel_~tmp___0~1 := 1; 4185#L765-11 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 4461#L771-3 processEnvironment__wrappee__highWaterSensor_#t~ret47 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret47;havoc processEnvironment__wrappee__highWaterSensor_#t~ret47; 4081#L615-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4);assume { :begin_inline_processEnvironment__wrappee__base } true; 4082#L603-6 assume { :end_inline_processEnvironment__wrappee__base } true; 4341#L611-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4500#L637-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 4369#L663-1 assume { :end_inline_processEnvironment } true; 4356#L586-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret45, __utac_acc__Specification2_spec__2_#t~ret46, __utac_acc__Specification2_spec__2_~tmp~3, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~3;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 4357#L466-1 __utac_acc__Specification2_spec__2_#t~ret45 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3 := __utac_acc__Specification2_spec__2_#t~ret45;havoc __utac_acc__Specification2_spec__2_#t~ret45; 4065#L544 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3);~methAndRunningLastTime~0 := 0; 4066#L544-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 4496#L596 assume { :end_inline_timeShift } true; 4069#L829-3 [2018-11-18 09:09:45,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:09:45,399 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2018-11-18 09:09:45,399 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:09:45,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:09:45,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:45,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:09:45,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:09:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:09:45,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:09:45,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1081336075, now seen corresponding path program 1 times [2018-11-18 09:09:45,438 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:09:45,438 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:09:45,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:45,439 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:09:45,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:09:45,493 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 09:09:45,493 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:09:45,493 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 09:09:45,494 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 09:09:45,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:09:45,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:09:45,494 INFO L87 Difference]: Start difference. First operand 591 states and 752 transitions. cyclomatic complexity: 164 Second operand 5 states. [2018-11-18 09:09:45,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:09:45,660 INFO L93 Difference]: Finished difference Result 1716 states and 2186 transitions. [2018-11-18 09:09:45,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 09:09:45,661 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1716 states and 2186 transitions. [2018-11-18 09:09:45,666 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1244 [2018-11-18 09:09:45,670 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1716 states to 1716 states and 2186 transitions. [2018-11-18 09:09:45,671 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1716 [2018-11-18 09:09:45,671 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1716 [2018-11-18 09:09:45,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1716 states and 2186 transitions. [2018-11-18 09:09:45,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:09:45,673 INFO L705 BuchiCegarLoop]: Abstraction has 1716 states and 2186 transitions. [2018-11-18 09:09:45,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states and 2186 transitions. [2018-11-18 09:09:45,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 645. [2018-11-18 09:09:45,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2018-11-18 09:09:45,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 806 transitions. [2018-11-18 09:09:45,684 INFO L728 BuchiCegarLoop]: Abstraction has 645 states and 806 transitions. [2018-11-18 09:09:45,684 INFO L608 BuchiCegarLoop]: Abstraction has 645 states and 806 transitions. [2018-11-18 09:09:45,684 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 09:09:45,685 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 645 states and 806 transitions. [2018-11-18 09:09:45,686 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 451 [2018-11-18 09:09:45,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:09:45,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:09:45,687 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:09:45,687 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:09:45,688 INFO L794 eck$LassoCheckResult]: Stem: 6527#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(13);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string38.base,#t~string38.offset := 44];#memory_int := #memory_int[#t~string38.base,1 + #t~string38.offset := 77];#memory_int := #memory_int[#t~string38.base,2 + #t~string38.offset := 101];#memory_int := #memory_int[#t~string38.base,3 + #t~string38.offset := 116];#memory_int := #memory_int[#t~string38.base,4 + #t~string38.offset := 104];#memory_int := #memory_int[#t~string38.base,5 + #t~string38.offset := 58];#memory_int := #memory_int[#t~string38.base,6 + #t~string38.offset := 0];call #t~string40.base, #t~string40.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string40.base,#t~string40.offset := 67];#memory_int := #memory_int[#t~string40.base,1 + #t~string40.offset := 82];#memory_int := #memory_int[#t~string40.base,2 + #t~string40.offset := 73];#memory_int := #memory_int[#t~string40.base,3 + #t~string40.offset := 84];#memory_int := #memory_int[#t~string40.base,4 + #t~string40.offset := 0];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 := 75];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 41];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 110];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,3 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 44];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 80];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 117];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 109];#memory_int := #memory_int[#t~string58.base,4 + #t~string58.offset := 112];#memory_int := #memory_int[#t~string58.base,5 + #t~string58.offset := 58];#memory_int := #memory_int[#t~string58.base,6 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 79];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 110];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 41];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 32];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 10];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 6394#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 6395#L913 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 6597#L906 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 6605#L921 main_#t~ret74 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret74;havoc main_#t~ret74; 6606#L1009 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 6553#L985 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 6388#L533 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 6389#L829-3 [2018-11-18 09:09:45,688 INFO L796 eck$LassoCheckResult]: Loop: 6389#L829-3 assume true; 6477#L829-1 assume !false; 6398#L830 assume test_~splverifierCounter~0 < 4; 6399#L831 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 6571#L839 assume !(0 != test_~tmp~9); 6661#L839-2 test_~tmp___0~3 := test_#t~nondet70;havoc test_#t~nondet70; 6621#L849 assume !(0 != test_~tmp___0~3); 6608#L849-2 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 6628#L859 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 6512#L814 assume { :end_inline_startSystem } true; 6579#L867-2 assume { :begin_inline_timeShift } true; 6838#L579 assume !(0 != ~pumpRunning~0); 6636#L579-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 6637#L663 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret48, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 6432#L637-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret47, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 6433#L611-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret67, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 6561#L506-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 6563#L511-3 isHighWaterLevel_#t~ret67 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret67;havoc isHighWaterLevel_#t~ret67; 6744#L765-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 6745#L765-11 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 6736#L771-3 processEnvironment__wrappee__highWaterSensor_#t~ret47 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret47;havoc processEnvironment__wrappee__highWaterSensor_#t~ret47; 6737#L615-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4);assume { :begin_inline_processEnvironment__wrappee__base } true; 6690#L603-6 assume { :end_inline_processEnvironment__wrappee__base } true; 6691#L611-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 6435#L637-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 6431#L663-1 assume { :end_inline_processEnvironment } true; 6835#L586-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret45, __utac_acc__Specification2_spec__2_#t~ret46, __utac_acc__Specification2_spec__2_~tmp~3, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~3;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 6834#L466-1 __utac_acc__Specification2_spec__2_#t~ret45 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3 := __utac_acc__Specification2_spec__2_#t~ret45;havoc __utac_acc__Specification2_spec__2_#t~ret45; 6828#L544 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3);~methAndRunningLastTime~0 := 0; 6390#L544-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 6391#L596 assume { :end_inline_timeShift } true; 6389#L829-3 [2018-11-18 09:09:45,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:09:45,688 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2018-11-18 09:09:45,688 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:09:45,688 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:09:45,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:45,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:09:45,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:09:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:09:45,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:09:45,717 INFO L82 PathProgramCache]: Analyzing trace with hash 785333617, now seen corresponding path program 1 times [2018-11-18 09:09:45,717 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:09:45,717 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:09:45,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:45,718 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:09:45,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:09:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:09:45,726 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:09:45,727 INFO L82 PathProgramCache]: Analyzing trace with hash -26706584, now seen corresponding path program 1 times [2018-11-18 09:09:45,727 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:09:45,727 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:09:45,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:45,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:09:45,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:09:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:09:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:11:05,123 WARN L180 SmtUtils]: Spent 1.32 m on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 09:11:45,537 WARN L180 SmtUtils]: Spent 40.41 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 09:11:45,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 09:11:45 BoogieIcfgContainer [2018-11-18 09:11:45,600 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 09:11:45,601 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:11:45,601 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:11:45,601 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:11:45,602 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:09:44" (3/4) ... [2018-11-18 09:11:45,604 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 09:11:45,649 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b2b9d707-6709-4239-9c2f-58cdf2e33e57/bin-2019/uautomizer/witness.graphml [2018-11-18 09:11:45,650 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:11:45,650 INFO L168 Benchmark]: Toolchain (without parser) took 122619.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:11:45,651 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:11:45,651 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -159.5 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2018-11-18 09:11:45,652 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.90 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 09:11:45,652 INFO L168 Benchmark]: Boogie Preprocessor took 35.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:11:45,652 INFO L168 Benchmark]: RCFGBuilder took 827.65 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: 96.0 MB). Peak memory consumption was 96.0 MB. Max. memory is 11.5 GB. [2018-11-18 09:11:45,652 INFO L168 Benchmark]: BuchiAutomizer took 121288.98 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 14.2 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -111.7 MB). Peak memory consumption was 213.3 MB. Max. memory is 11.5 GB. [2018-11-18 09:11:45,652 INFO L168 Benchmark]: Witness Printer took 48.99 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: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 GB. [2018-11-18 09:11:45,653 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 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 371.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -159.5 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.90 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 35.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 827.65 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: 96.0 MB). Peak memory consumption was 96.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 121288.98 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 14.2 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -111.7 MB). Peak memory consumption was 213.3 MB. Max. memory is 11.5 GB. * Witness Printer took 48.99 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: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 645 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 121.2s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 120.4s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2060 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 645 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1639 SDtfs, 2042 SDslu, 2147 SDs, 0 SdLazy, 273 SolverSat, 112 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 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: 829]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, ") "=0, "Off"=0, "CRIT"=0, ")"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61670ff9=0, "On"=0, ",Meth:"=8, "OK"=0, retValue_acc=1, ") "=29, "Off"=36, methaneLevelCritical=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25599fda=0, "\n"=0, retValue_acc=0, tmp___1=0, tmp=0, "__utac__get_this_argtype"=17, tmp=0, "__utac__get_this_arg"=20, "__utac__get_this_arg"=24, "libacc.c"=18, "Env(Water:%i"=12, tmp=0, cleanupTimeShifts=4, "libacc.c"=15, "OK"=34, tmp=1, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64b08fee=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f64d664=0, NULL=0, systemActive=1, waterLevel=1, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, ",Meth:"=0, ",Pump:"=38, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a759554=0, retValue_acc=0, \result=0, ")"=31, "On"=0, "Pump(System:"=0, "On"=39, ",Pump:"=0, "Off"=0, \result=1, retValue_acc=0, "i > 0 && i <= this->argsCount"=27, head=0, pumpRunning=0, \result=0, "Pump(System:"=33, retValue_acc=1, "i > 0 && i <= this->argsCount"=23, "libacc.c"=0, "Env(Water:%i"=0, "\n"=37, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b453ced=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ca24b83=0, "i > 0 && i <= this->argsCount"=0, \result=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24086c3b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47c32a55=165, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2eddd224=0, "libacc.c"=22, tmp=1, tmp___0=0, tmp___2=165, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7dd87a36=0, "i > 0 && i <= this->argsCount"=16, splverifierCounter=0, methAndRunningLastTime=0, \result=0, head=0, "libacc.c"=0, "libacc.c"=26, tmp=0, "i > 0 && i <= this->argsCount"=19, "__utac__get_this_arg"=0, "__utac__get_this_argtype"=14, "libacc.c"=0, "libacc.c"=0, "CRIT"=11, "Off"=40, "On"=35, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 829]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L337] FCALL "i > 0 && i <= this->argsCount" [L337] FCALL "libacc.c" [L338] FCALL "__utac__get_this_arg" [L344] FCALL "i > 0 && i <= this->argsCount" [L344] FCALL "libacc.c" [L345] FCALL "__utac__get_this_arg" [L383] FCALL "i > 0 && i <= this->argsCount" [L383] FCALL "libacc.c" [L384] FCALL "__utac__get_this_argtype" [L390] FCALL "i > 0 && i <= this->argsCount" [L390] FCALL "libacc.c" [L391] FCALL "__utac__get_this_argtype" [L475] FCALL "Env(Water:%i" [L476] FCALL ",Meth:" [L480] FCALL "CRIT" [L484] FCALL "OK" [L488] FCALL ")" [L725] FCALL "Pump(System:" [L729] FCALL "On" [L733] FCALL "Off" [L737] FCALL ",Pump:" [L741] FCALL "On" [L745] FCALL "Off" [L749] FCALL ") " [L751] FCALL "\n" [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L527] int methAndRunningLastTime ; [L572] int pumpRunning = 0; [L573] int systemActive = 1; [L926] int cleanupTimeShifts = 4; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L1000] int retValue_acc ; [L1001] int tmp ; [L1005] FCALL select_helpers() [L1006] FCALL select_features() [L1007] CALL, EXPR valid_product() [L917] int retValue_acc ; [L920] retValue_acc = 1 [L921] RET return (retValue_acc); [L1007] EXPR valid_product() [L1007] tmp = valid_product() [L1009] COND TRUE \read(tmp) [L1011] FCALL setup() [L1012] CALL runTest() [L993] CALL __utac_acc__Specification2_spec__1() [L532] RET methAndRunningLastTime = 0 [L993] __utac_acc__Specification2_spec__1() [L994] CALL test() [L820] int splverifierCounter ; [L821] int tmp ; [L822] int tmp___0 ; [L823] int tmp___1 ; [L824] int tmp___2 ; [L827] splverifierCounter = 0 Loop: [L829] COND TRUE 1 [L831] COND TRUE splverifierCounter < 4 [L837] tmp = __VERIFIER_nondet_int() [L839] COND FALSE !(\read(tmp)) [L847] tmp___0 = __VERIFIER_nondet_int() [L849] COND FALSE !(\read(tmp___0)) [L857] tmp___2 = __VERIFIER_nondet_int() [L859] COND TRUE \read(tmp___2) [L861] CALL startSystem() [L813] RET systemActive = 1 [L861] startSystem() [L876] CALL timeShift() [L579] COND FALSE !(\read(pumpRunning)) [L586] COND TRUE \read(systemActive) [L588] CALL processEnvironment() [L660] int tmp ; [L663] COND FALSE !(\read(pumpRunning)) [L678] CALL processEnvironment__wrappee__lowWaterSensor() [L634] int tmp ; [L637] COND FALSE !(\read(pumpRunning)) [L652] CALL processEnvironment__wrappee__highWaterSensor() [L608] int tmp ; [L611] COND TRUE ! pumpRunning [L613] CALL, EXPR isHighWaterLevel() [L757] int retValue_acc ; [L758] int tmp ; [L759] int tmp___0 ; [L763] CALL, EXPR isHighWaterSensorDry() [L503] int retValue_acc ; [L506] COND TRUE waterLevel < 2 [L507] retValue_acc = 1 [L508] RET return (retValue_acc); [L763] EXPR isHighWaterSensorDry() [L763] tmp = isHighWaterSensorDry() [L765] COND TRUE \read(tmp) [L766] tmp___0 = 0 [L770] retValue_acc = tmp___0 [L771] RET return (retValue_acc); [L613] EXPR isHighWaterLevel() [L613] tmp = isHighWaterLevel() [L615] COND FALSE !(\read(tmp)) [L621] RET, FCALL processEnvironment__wrappee__base() [L652] RET processEnvironment__wrappee__highWaterSensor() [L678] RET processEnvironment__wrappee__lowWaterSensor() [L588] processEnvironment() [L594] CALL __utac_acc__Specification2_spec__2() [L537] int tmp ; [L538] int tmp___0 ; [L542] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] RET return (retValue_acc); [L542] EXPR isMethaneLevelCritical() [L542] tmp = isMethaneLevelCritical() [L544] COND FALSE !(\read(tmp)) [L560] RET methAndRunningLastTime = 0 [L594] RET __utac_acc__Specification2_spec__2() [L876] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...