./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product33_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_979e9890-218f-4130-b3e0-f75fdc8b7ff3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_979e9890-218f-4130-b3e0-f75fdc8b7ff3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_979e9890-218f-4130-b3e0-f75fdc8b7ff3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_979e9890-218f-4130-b3e0-f75fdc8b7ff3/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product33_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_979e9890-218f-4130-b3e0-f75fdc8b7ff3/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_979e9890-218f-4130-b3e0-f75fdc8b7ff3/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 819c3ebf0e51053d89fb24b2dea5d171f2fed0d0 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 09:06:22,212 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:06:22,213 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:06:22,220 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:06:22,220 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:06:22,221 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:06:22,221 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:06:22,223 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:06:22,224 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:06:22,224 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:06:22,225 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:06:22,225 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:06:22,226 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:06:22,227 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:06:22,227 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:06:22,228 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:06:22,229 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:06:22,230 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:06:22,231 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:06:22,232 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:06:22,233 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:06:22,234 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:06:22,236 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:06:22,236 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:06:22,236 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:06:22,237 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:06:22,237 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:06:22,238 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:06:22,239 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:06:22,239 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:06:22,239 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:06:22,240 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:06:22,240 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:06:22,240 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:06:22,241 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:06:22,241 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:06:22,242 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_979e9890-218f-4130-b3e0-f75fdc8b7ff3/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 09:06:22,253 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:06:22,253 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:06:22,254 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:06:22,254 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:06:22,255 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 09:06:22,255 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 09:06:22,255 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 09:06:22,255 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 09:06:22,255 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 09:06:22,255 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 09:06:22,255 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 09:06:22,256 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:06:22,256 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:06:22,256 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 09:06:22,256 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:06:22,256 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:06:22,256 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:06:22,256 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 09:06:22,256 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 09:06:22,256 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 09:06:22,257 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:06:22,257 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:06:22,257 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 09:06:22,257 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:06:22,257 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 09:06:22,257 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:06:22,257 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:06:22,257 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 09:06:22,258 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:06:22,258 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 09:06:22,258 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 09:06:22,258 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 09:06:22,259 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_979e9890-218f-4130-b3e0-f75fdc8b7ff3/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 -> 819c3ebf0e51053d89fb24b2dea5d171f2fed0d0 [2018-11-18 09:06:22,281 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:06:22,289 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:06:22,291 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:06:22,292 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:06:22,292 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:06:22,293 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_979e9890-218f-4130-b3e0-f75fdc8b7ff3/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product33_true-unreach-call_false-termination.cil.c [2018-11-18 09:06:22,329 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_979e9890-218f-4130-b3e0-f75fdc8b7ff3/bin-2019/uautomizer/data/a0b592cfa/c29908014f274d3ebae2bebc2bc7e48f/FLAG561297195 [2018-11-18 09:06:22,784 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:06:22,784 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_979e9890-218f-4130-b3e0-f75fdc8b7ff3/sv-benchmarks/c/product-lines/minepump_spec5_product33_true-unreach-call_false-termination.cil.c [2018-11-18 09:06:22,793 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_979e9890-218f-4130-b3e0-f75fdc8b7ff3/bin-2019/uautomizer/data/a0b592cfa/c29908014f274d3ebae2bebc2bc7e48f/FLAG561297195 [2018-11-18 09:06:22,802 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_979e9890-218f-4130-b3e0-f75fdc8b7ff3/bin-2019/uautomizer/data/a0b592cfa/c29908014f274d3ebae2bebc2bc7e48f [2018-11-18 09:06:22,804 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:06:22,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:06:22,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:06:22,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:06:22,807 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:06:22,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:06:22" (1/1) ... [2018-11-18 09:06:22,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345e74ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:22, skipping insertion in model container [2018-11-18 09:06:22,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:06:22" (1/1) ... [2018-11-18 09:06:22,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:06:22,846 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:06:23,043 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:06:23,052 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:06:23,157 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:06:23,173 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:06:23,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:23 WrapperNode [2018-11-18 09:06:23,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:06:23,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:06:23,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:06:23,174 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:06:23,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:23" (1/1) ... [2018-11-18 09:06:23,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:23" (1/1) ... [2018-11-18 09:06:23,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:06:23,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:06:23,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:06:23,209 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:06:23,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:23" (1/1) ... [2018-11-18 09:06:23,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:23" (1/1) ... [2018-11-18 09:06:23,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:23" (1/1) ... [2018-11-18 09:06:23,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:23" (1/1) ... [2018-11-18 09:06:23,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:23" (1/1) ... [2018-11-18 09:06:23,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:23" (1/1) ... [2018-11-18 09:06:23,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:23" (1/1) ... [2018-11-18 09:06:23,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:06:23,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:06:23,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:06:23,230 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:06:23,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_979e9890-218f-4130-b3e0-f75fdc8b7ff3/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 09:06:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:06:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:06:23,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:06:23,718 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:06:23,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:06:23 BoogieIcfgContainer [2018-11-18 09:06:23,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:06:23,720 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 09:06:23,720 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 09:06:23,722 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 09:06:23,723 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:06:23,723 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 09:06:22" (1/3) ... [2018-11-18 09:06:23,724 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5258a097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:06:23, skipping insertion in model container [2018-11-18 09:06:23,724 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:06:23,724 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:23" (2/3) ... [2018-11-18 09:06:23,724 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5258a097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:06:23, skipping insertion in model container [2018-11-18 09:06:23,724 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:06:23,724 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:06:23" (3/3) ... [2018-11-18 09:06:23,726 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product33_true-unreach-call_false-termination.cil.c [2018-11-18 09:06:23,759 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:06:23,759 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 09:06:23,760 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 09:06:23,760 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 09:06:23,760 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:06:23,760 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:06:23,760 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 09:06:23,760 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:06:23,760 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 09:06:23,774 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states. [2018-11-18 09:06:23,795 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 74 [2018-11-18 09:06:23,796 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:06:23,796 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:06:23,802 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:06:23,802 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] [2018-11-18 09:06:23,802 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 09:06:23,802 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states. [2018-11-18 09:06:23,807 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 74 [2018-11-18 09:06:23,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:06:23,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:06:23,807 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:06:23,808 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] [2018-11-18 09:06:23,811 INFO L794 eck$LassoCheckResult]: Stem: 72#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~string42.base, #t~string42.offset := #Ultimate.alloc(13);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 79];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 110];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 102];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 102];#memory_int := #memory_int[#t~string46.base,3 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 44];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 80];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 117];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 109];#memory_int := #memory_int[#t~string48.base,4 + #t~string48.offset := 112];#memory_int := #memory_int[#t~string48.base,5 + #t~string48.offset := 58];#memory_int := #memory_int[#t~string48.base,6 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 79];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 110];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 102];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 102];#memory_int := #memory_int[#t~string52.base,3 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 41];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 32];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 10];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(13);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 44];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 77];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 101];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 116];#memory_int := #memory_int[#t~string63.base,4 + #t~string63.offset := 104];#memory_int := #memory_int[#t~string63.base,5 + #t~string63.offset := 58];#memory_int := #memory_int[#t~string63.base,6 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 67];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 82];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 73];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 84];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 75];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 41];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret59, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6;assume { :begin_inline_select_helpers } true; 4#L665true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 62#L658true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 30#L673true main_#t~ret59 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~6 := main_#t~ret59;havoc main_#t~ret59; 94#L762true assume 0 != main_~tmp~6;assume { :begin_inline_setup } true; 105#L737true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 84#L886true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 9#L420-3true [2018-11-18 09:06:23,811 INFO L796 eck$LassoCheckResult]: Loop: 9#L420-3true assume true; 5#L420-1true assume !false; 78#L421true assume test_~splverifierCounter~0 < 4; 51#L422true test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 54#L430true assume !(0 != test_~tmp~3); 55#L430-2true test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 81#L440true assume !(0 != test_~tmp___0~0); 85#L440-2true test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 28#L450true assume 0 != test_~tmp___2~0; 116#L456-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret70;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 97#L580true __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 33#L896true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 95#L495true assume !(0 != ~pumpRunning~0); 82#L495-2true assume !(0 != ~systemActive~0); 47#L502-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 89#L861true __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 31#L907true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 36#L907-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 68#L512true assume { :end_inline_timeShift } true; 9#L420-3true [2018-11-18 09:06:23,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:06:23,817 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 09:06:23,818 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:06:23,819 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:06:23,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:06:23,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:06:23,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:06:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:06:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:06:23,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:06:23,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1479925341, now seen corresponding path program 1 times [2018-11-18 09:06:23,967 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:06:23,968 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:06:23,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:06:23,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:06:23,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:06:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:06:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:06:23,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:06:23,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1385293612, now seen corresponding path program 1 times [2018-11-18 09:06:23,983 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:06:23,983 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:06:23,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:06:23,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:06:23,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:06:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:24,104 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 09:06:24,106 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:06:24,106 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 09:06:24,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 09:06:24,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:06:24,194 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 6 states. [2018-11-18 09:06:24,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:06:24,319 INFO L93 Difference]: Finished difference Result 114 states and 145 transitions. [2018-11-18 09:06:24,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 09:06:24,321 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 145 transitions. [2018-11-18 09:06:24,325 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 70 [2018-11-18 09:06:24,329 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 104 states and 135 transitions. [2018-11-18 09:06:24,330 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2018-11-18 09:06:24,331 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2018-11-18 09:06:24,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 135 transitions. [2018-11-18 09:06:24,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:06:24,333 INFO L705 BuchiCegarLoop]: Abstraction has 104 states and 135 transitions. [2018-11-18 09:06:24,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 135 transitions. [2018-11-18 09:06:24,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-11-18 09:06:24,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-11-18 09:06:24,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2018-11-18 09:06:24,355 INFO L728 BuchiCegarLoop]: Abstraction has 104 states and 135 transitions. [2018-11-18 09:06:24,356 INFO L608 BuchiCegarLoop]: Abstraction has 104 states and 135 transitions. [2018-11-18 09:06:24,356 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 09:06:24,356 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 135 transitions. [2018-11-18 09:06:24,357 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 70 [2018-11-18 09:06:24,357 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:06:24,357 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:06:24,357 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:06:24,357 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:06:24,357 INFO L794 eck$LassoCheckResult]: Stem: 335#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~string42.base, #t~string42.offset := #Ultimate.alloc(13);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 79];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 110];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 102];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 102];#memory_int := #memory_int[#t~string46.base,3 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 44];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 80];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 117];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 109];#memory_int := #memory_int[#t~string48.base,4 + #t~string48.offset := 112];#memory_int := #memory_int[#t~string48.base,5 + #t~string48.offset := 58];#memory_int := #memory_int[#t~string48.base,6 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 79];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 110];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 102];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 102];#memory_int := #memory_int[#t~string52.base,3 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 41];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 32];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 10];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(13);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 44];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 77];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 101];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 116];#memory_int := #memory_int[#t~string63.base,4 + #t~string63.offset := 104];#memory_int := #memory_int[#t~string63.base,5 + #t~string63.offset := 58];#memory_int := #memory_int[#t~string63.base,6 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 67];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 82];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 73];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 84];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 75];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 41];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 261#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret59, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6;assume { :begin_inline_select_helpers } true; 251#L665 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 252#L658 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 293#L673 main_#t~ret59 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~6 := main_#t~ret59;havoc main_#t~ret59; 294#L762 assume 0 != main_~tmp~6;assume { :begin_inline_setup } true; 348#L737 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 343#L886 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 260#L420-3 [2018-11-18 09:06:24,358 INFO L796 eck$LassoCheckResult]: Loop: 260#L420-3 assume true; 253#L420-1 assume !false; 254#L421 assume test_~splverifierCounter~0 < 4; 320#L422 test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 321#L430 assume !(0 != test_~tmp~3); 325#L430-2 test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 326#L440 assume !(0 != test_~tmp___0~0); 285#L440-2 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 289#L450 assume 0 != test_~tmp___2~0; 290#L456-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret70;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 350#L580 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 300#L896 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 301#L495 assume !(0 != ~pumpRunning~0); 340#L495-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 311#L527 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 280#L519-1 assume { :end_inline_processEnvironment__wrappee__base } true; 276#L527-1 assume { :end_inline_processEnvironment } true; 286#L502-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 316#L861 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 295#L907 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 296#L907-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 304#L512 assume { :end_inline_timeShift } true; 260#L420-3 [2018-11-18 09:06:24,358 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:06:24,358 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 09:06:24,358 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:06:24,358 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:06:24,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:06:24,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:06:24,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:06:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:06:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:06:24,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:06:24,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1820532637, now seen corresponding path program 1 times [2018-11-18 09:06:24,400 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:06:24,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:06:24,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:06:24,401 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:06:24,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:06:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:24,424 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 09:06:24,424 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:06:24,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:06:24,425 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 09:06:24,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:06:24,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:06:24,426 INFO L87 Difference]: Start difference. First operand 104 states and 135 transitions. cyclomatic complexity: 33 Second operand 3 states. [2018-11-18 09:06:24,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:06:24,484 INFO L93 Difference]: Finished difference Result 167 states and 211 transitions. [2018-11-18 09:06:24,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:06:24,484 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 167 states and 211 transitions. [2018-11-18 09:06:24,487 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2018-11-18 09:06:24,488 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 167 states to 167 states and 211 transitions. [2018-11-18 09:06:24,488 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 167 [2018-11-18 09:06:24,489 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 167 [2018-11-18 09:06:24,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 167 states and 211 transitions. [2018-11-18 09:06:24,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:06:24,490 INFO L705 BuchiCegarLoop]: Abstraction has 167 states and 211 transitions. [2018-11-18 09:06:24,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states and 211 transitions. [2018-11-18 09:06:24,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2018-11-18 09:06:24,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-11-18 09:06:24,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 211 transitions. [2018-11-18 09:06:24,498 INFO L728 BuchiCegarLoop]: Abstraction has 167 states and 211 transitions. [2018-11-18 09:06:24,498 INFO L608 BuchiCegarLoop]: Abstraction has 167 states and 211 transitions. [2018-11-18 09:06:24,498 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 09:06:24,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states and 211 transitions. [2018-11-18 09:06:24,500 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2018-11-18 09:06:24,500 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:06:24,500 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:06:24,500 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:06:24,500 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:06:24,501 INFO L794 eck$LassoCheckResult]: Stem: 614#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~string42.base, #t~string42.offset := #Ultimate.alloc(13);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 79];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 110];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 102];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 102];#memory_int := #memory_int[#t~string46.base,3 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 44];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 80];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 117];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 109];#memory_int := #memory_int[#t~string48.base,4 + #t~string48.offset := 112];#memory_int := #memory_int[#t~string48.base,5 + #t~string48.offset := 58];#memory_int := #memory_int[#t~string48.base,6 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 79];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 110];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 102];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 102];#memory_int := #memory_int[#t~string52.base,3 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 41];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 32];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 10];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(13);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 44];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 77];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 101];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 116];#memory_int := #memory_int[#t~string63.base,4 + #t~string63.offset := 104];#memory_int := #memory_int[#t~string63.base,5 + #t~string63.offset := 58];#memory_int := #memory_int[#t~string63.base,6 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 67];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 82];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 73];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 84];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 75];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 41];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 539#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret59, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6;assume { :begin_inline_select_helpers } true; 528#L665 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 529#L658 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 573#L673 main_#t~ret59 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~6 := main_#t~ret59;havoc main_#t~ret59; 574#L762 assume 0 != main_~tmp~6;assume { :begin_inline_setup } true; 632#L737 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 622#L886 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 538#L420-3 [2018-11-18 09:06:24,501 INFO L796 eck$LassoCheckResult]: Loop: 538#L420-3 assume true; 530#L420-1 assume !false; 531#L421 assume test_~splverifierCounter~0 < 4; 600#L422 test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 601#L430 assume !(0 != test_~tmp~3); 605#L430-2 test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 606#L440 assume !(0 != test_~tmp___0~0); 565#L440-2 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 569#L450 assume 0 != test_~tmp___2~0; 570#L456-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret70;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 634#L580 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 580#L896 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 581#L495 assume !(0 != ~pumpRunning~0); 633#L495-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 591#L527 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret57, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 592#L869 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 583#L874 isHighWaterLevel_#t~ret57 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret57;havoc isHighWaterLevel_#t~ret57; 582#L629 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 547#L629-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 548#L635 processEnvironment_#t~ret39 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4 := processEnvironment_#t~ret39;havoc processEnvironment_#t~ret39; 615#L531 assume !(0 != processEnvironment_~tmp~4);assume { :begin_inline_processEnvironment__wrappee__base } true; 556#L519 assume { :end_inline_processEnvironment__wrappee__base } true; 557#L527-1 assume { :end_inline_processEnvironment } true; 566#L502-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 596#L861 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 575#L907 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 576#L907-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 584#L512 assume { :end_inline_timeShift } true; 538#L420-3 [2018-11-18 09:06:24,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:06:24,501 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 09:06:24,501 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:06:24,502 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:06:24,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:06:24,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:06:24,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:06:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:06:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:06:24,533 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:06:24,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1764956677, now seen corresponding path program 1 times [2018-11-18 09:06:24,534 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:06:24,534 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:06:24,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:06:24,535 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:06:24,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:06:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:06:24,591 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 09:06:24,591 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:06:24,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 09:06:24,591 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 09:06:24,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:06:24,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:06:24,592 INFO L87 Difference]: Start difference. First operand 167 states and 211 transitions. cyclomatic complexity: 46 Second operand 5 states. [2018-11-18 09:06:24,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:06:24,728 INFO L93 Difference]: Finished difference Result 652 states and 819 transitions. [2018-11-18 09:06:24,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 09:06:24,729 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 652 states and 819 transitions. [2018-11-18 09:06:24,733 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 457 [2018-11-18 09:06:24,737 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 652 states to 652 states and 819 transitions. [2018-11-18 09:06:24,737 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 652 [2018-11-18 09:06:24,738 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 652 [2018-11-18 09:06:24,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 652 states and 819 transitions. [2018-11-18 09:06:24,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:06:24,741 INFO L705 BuchiCegarLoop]: Abstraction has 652 states and 819 transitions. [2018-11-18 09:06:24,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states and 819 transitions. [2018-11-18 09:06:24,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 323. [2018-11-18 09:06:24,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2018-11-18 09:06:24,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 402 transitions. [2018-11-18 09:06:24,757 INFO L728 BuchiCegarLoop]: Abstraction has 323 states and 402 transitions. [2018-11-18 09:06:24,757 INFO L608 BuchiCegarLoop]: Abstraction has 323 states and 402 transitions. [2018-11-18 09:06:24,757 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 09:06:24,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 323 states and 402 transitions. [2018-11-18 09:06:24,759 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 234 [2018-11-18 09:06:24,759 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:06:24,759 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:06:24,760 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:06:24,760 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:06:24,760 INFO L794 eck$LassoCheckResult]: Stem: 1458#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~string42.base, #t~string42.offset := #Ultimate.alloc(13);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 79];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 110];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 102];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 102];#memory_int := #memory_int[#t~string46.base,3 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 44];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 80];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 117];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 109];#memory_int := #memory_int[#t~string48.base,4 + #t~string48.offset := 112];#memory_int := #memory_int[#t~string48.base,5 + #t~string48.offset := 58];#memory_int := #memory_int[#t~string48.base,6 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 79];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 110];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 102];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 102];#memory_int := #memory_int[#t~string52.base,3 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 41];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 32];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 10];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(13);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 44];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 77];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 101];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 116];#memory_int := #memory_int[#t~string63.base,4 + #t~string63.offset := 104];#memory_int := #memory_int[#t~string63.base,5 + #t~string63.offset := 58];#memory_int := #memory_int[#t~string63.base,6 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 67];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 82];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 73];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 84];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 75];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 41];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1377#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret59, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6;assume { :begin_inline_select_helpers } true; 1366#L665 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1367#L658 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 1411#L673 main_#t~ret59 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~6 := main_#t~ret59;havoc main_#t~ret59; 1412#L762 assume 0 != main_~tmp~6;assume { :begin_inline_setup } true; 1484#L737 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1470#L886 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1376#L420-3 [2018-11-18 09:06:24,761 INFO L796 eck$LassoCheckResult]: Loop: 1376#L420-3 assume true; 1370#L420-1 assume !false; 1371#L421 assume test_~splverifierCounter~0 < 4; 1593#L422 test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 1659#L430 assume !(0 != test_~tmp~3); 1657#L430-2 test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 1655#L440 assume !(0 != test_~tmp___0~0); 1652#L440-2 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 1609#L450 assume 0 != test_~tmp___2~0; 1608#L456-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret70;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 1607#L580 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 1606#L896 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1485#L495 assume !(0 != ~pumpRunning~0); 1467#L495-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 1468#L527 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret57, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1555#L869 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1500#L874 isHighWaterLevel_#t~ret57 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret57;havoc isHighWaterLevel_#t~ret57; 1419#L629 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 1384#L629-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 1385#L635 processEnvironment_#t~ret39 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4 := processEnvironment_#t~ret39;havoc processEnvironment_#t~ret39; 1456#L531 assume !(0 != processEnvironment_~tmp~4);assume { :begin_inline_processEnvironment__wrappee__base } true; 1457#L519 assume { :end_inline_processEnvironment__wrappee__base } true; 1651#L527-1 assume { :end_inline_processEnvironment } true; 1435#L502-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 1436#L861 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 1415#L907 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 1416#L580-1 __utac_acc__Specification5_spec__3_#t~ret72 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 1465#L911 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1423#L907-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1424#L512 assume { :end_inline_timeShift } true; 1376#L420-3 [2018-11-18 09:06:24,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:06:24,761 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2018-11-18 09:06:24,761 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:06:24,761 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:06:24,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:06:24,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:06:24,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:06:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:06:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:06:24,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:06:24,790 INFO L82 PathProgramCache]: Analyzing trace with hash -407813792, now seen corresponding path program 1 times [2018-11-18 09:06:24,790 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:06:24,791 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:06:24,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:06:24,791 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:06:24,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:06:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:06:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:06:24,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:06:24,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1921296009, now seen corresponding path program 1 times [2018-11-18 09:06:24,801 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:06:24,801 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:06:24,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:06:24,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:06:24,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:06:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:06:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:06:24,950 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2018-11-18 09:07:07,446 WARN L180 SmtUtils]: Spent 42.43 s on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 09:07:28,491 WARN L180 SmtUtils]: Spent 21.04 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 09:07:28,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 09:07:28 BoogieIcfgContainer [2018-11-18 09:07:28,569 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 09:07:28,570 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:07:28,570 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:07:28,570 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:07:28,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:06:23" (3/4) ... [2018-11-18 09:07:28,572 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 09:07:28,613 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_979e9890-218f-4130-b3e0-f75fdc8b7ff3/bin-2019/uautomizer/witness.graphml [2018-11-18 09:07:28,614 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:07:28,614 INFO L168 Benchmark]: Toolchain (without parser) took 65810.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.7 MB). Free memory was 956.6 MB in the beginning and 895.7 MB in the end (delta: 60.9 MB). Peak memory consumption was 237.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:07:28,615 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:07:28,615 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -176.5 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:07:28,616 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.04 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 09:07:28,616 INFO L168 Benchmark]: Boogie Preprocessor took 21.48 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 09:07:28,616 INFO L168 Benchmark]: RCFGBuilder took 489.33 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: 66.5 MB). Peak memory consumption was 66.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:07:28,616 INFO L168 Benchmark]: BuchiAutomizer took 64849.40 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 35.1 MB). Free memory was 1.1 GB in the beginning and 895.7 MB in the end (delta: 165.5 MB). Peak memory consumption was 208.1 MB. Max. memory is 11.5 GB. [2018-11-18 09:07:28,617 INFO L168 Benchmark]: Witness Printer took 44.14 ms. Allocated memory is still 1.2 GB. Free memory is still 895.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:07:28,618 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 368.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -176.5 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.04 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 21.48 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 489.33 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: 66.5 MB). Peak memory consumption was 66.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 64849.40 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 35.1 MB). Free memory was 1.1 GB in the beginning and 895.7 MB in the end (delta: 165.5 MB). Peak memory consumption was 208.1 MB. Max. memory is 11.5 GB. * Witness Printer took 44.14 ms. Allocated memory is still 1.2 GB. Free memory is still 895.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 323 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 64.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 64.3s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 329 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 323 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 514 SDtfs, 1227 SDslu, 680 SDs, 0 SdLazy, 131 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 420]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, ",Meth:"=0, "Off"=0, retValue_acc=1, "Off"=37, "On"=0, "Env(Water:%i"=0, ",Meth:"=38, retValue_acc=0, "Pump(System:"=0, "\n"=34, methaneLevelCritical=0, tmp=1, tmp___0=0, retValue_acc=0, tmp=0, "CRIT"=0, ")"=0, "OK"=0, tmp___1=0, "__utac__get_this_argtype"=20, "__utac__get_this_arg"=24, "__utac__get_this_arg"=8, "libacc.c"=22, cleanupTimeShifts=4, switchedOnBeforeTS=0, "libacc.c"=18, "Pump(System:"=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cb78dcb=0, "On"=33, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a9c3293=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40482757=168, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@be5e9a1=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2212d5df=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b6266d6=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=0, NULL=0, systemActive=1, waterLevel=1, ")"=27, \result=1, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, \result=0, "On"=16, ") "=0, tmp___0=0, "Off"=0, "On"=0, "\n"=0, \result=1, "i > 0 && i <= this->argsCount"=14, head=0, pumpRunning=0, tmp___0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@690d414e=0, "Off"=31, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38f1d90c=0, "i > 0 && i <= this->argsCount"=11, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, tmp=1, \result=1, ",Pump:"=36, "OK"=39, "Env(Water:%i"=35, retValue_acc=1, "libacc.c"=26, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b771e0e=0, tmp___2=168, tmp=1, retValue_acc=1, "i > 0 && i <= this->argsCount"=19, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@148d268f=0, head=0, tmp=0, "libacc.c"=0, "libacc.c"=12, "i > 0 && i <= this->argsCount"=23, "__utac__get_this_arg"=0, "__utac__get_this_argtype"=17, "libacc.c"=0, "libacc.c"=0, ") "=28, ",Pump:"=0, "CRIT"=29, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 420]: 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" [L589] FCALL "Pump(System:" [L593] FCALL "On" [L597] FCALL "Off" [L601] FCALL ",Pump:" [L605] FCALL "On" [L609] FCALL "Off" [L613] FCALL ") " [L615] FCALL "\n" [L838] FCALL "Env(Water:%i" [L839] FCALL ",Meth:" [L843] FCALL "CRIT" [L847] FCALL "OK" [L851] FCALL ")" [L483] int pumpRunning = 0; [L484] int systemActive = 1; [L678] int cleanupTimeShifts = 4; [L786] int waterLevel = 1; [L787] int methaneLevelCritical = 0; [L880] int switchedOnBeforeTS ; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L753] int retValue_acc ; [L754] int tmp ; [L758] FCALL select_helpers() [L759] FCALL select_features() [L760] CALL, EXPR valid_product() [L669] int retValue_acc ; [L672] retValue_acc = 1 [L673] RET return (retValue_acc); [L760] EXPR valid_product() [L760] tmp = valid_product() [L762] COND TRUE \read(tmp) [L764] FCALL setup() [L765] CALL runTest() [L746] CALL __utac_acc__Specification5_spec__1() [L885] RET switchedOnBeforeTS = 0 [L746] __utac_acc__Specification5_spec__1() [L747] CALL test() [L411] int splverifierCounter ; [L412] int tmp ; [L413] int tmp___0 ; [L414] int tmp___1 ; [L415] int tmp___2 ; [L418] splverifierCounter = 0 Loop: [L420] COND TRUE 1 [L422] COND TRUE splverifierCounter < 4 [L428] tmp = __VERIFIER_nondet_int() [L430] COND FALSE !(\read(tmp)) [L438] tmp___0 = __VERIFIER_nondet_int() [L440] COND FALSE !(\read(tmp___0)) [L448] tmp___2 = __VERIFIER_nondet_int() [L450] COND TRUE \read(tmp___2) [L463] CALL timeShift() [L493] CALL __utac_acc__Specification5_spec__2() [L894] CALL, EXPR isPumpRunning() [L576] int retValue_acc ; [L579] retValue_acc = pumpRunning [L580] RET return (retValue_acc); [L894] EXPR isPumpRunning() [L894] RET switchedOnBeforeTS = isPumpRunning() [L493] __utac_acc__Specification5_spec__2() [L495] COND FALSE !(\read(pumpRunning)) [L502] COND TRUE \read(systemActive) [L504] CALL processEnvironment() [L524] int tmp ; [L527] COND TRUE ! pumpRunning [L529] CALL, EXPR isHighWaterLevel() [L621] int retValue_acc ; [L622] int tmp ; [L623] int tmp___0 ; [L627] CALL, EXPR isHighWaterSensorDry() [L866] int retValue_acc ; [L869] COND TRUE waterLevel < 2 [L870] retValue_acc = 1 [L871] RET return (retValue_acc); [L627] EXPR isHighWaterSensorDry() [L627] tmp = isHighWaterSensorDry() [L629] COND TRUE \read(tmp) [L630] tmp___0 = 0 [L634] retValue_acc = tmp___0 [L635] RET return (retValue_acc); [L529] EXPR isHighWaterLevel() [L529] tmp = isHighWaterLevel() [L531] COND FALSE !(\read(tmp)) [L537] RET, FCALL processEnvironment__wrappee__base() [L504] processEnvironment() [L510] CALL __utac_acc__Specification5_spec__3() [L900] int tmp ; [L901] int tmp___0 ; [L905] CALL, EXPR getWaterLevel() [L857] int retValue_acc ; [L860] retValue_acc = waterLevel [L861] RET return (retValue_acc); [L905] EXPR getWaterLevel() [L905] tmp = getWaterLevel() [L907] COND TRUE tmp != 2 [L909] CALL, EXPR isPumpRunning() [L576] int retValue_acc ; [L579] retValue_acc = pumpRunning [L580] RET return (retValue_acc); [L909] EXPR isPumpRunning() [L909] tmp___0 = isPumpRunning() [L911] COND FALSE, RET !(\read(tmp___0)) [L510] RET __utac_acc__Specification5_spec__3() [L463] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...