./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product60_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_2cd17cea-647e-4866-8ede-77dea025a27d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2cd17cea-647e-4866-8ede-77dea025a27d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2cd17cea-647e-4866-8ede-77dea025a27d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2cd17cea-647e-4866-8ede-77dea025a27d/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product60_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2cd17cea-647e-4866-8ede-77dea025a27d/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2cd17cea-647e-4866-8ede-77dea025a27d/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 e5628f313afbfffa53e61454ca424855ee3b0eb7 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:56:22,166 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:56:22,168 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:56:22,178 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:56:22,178 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:56:22,178 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:56:22,179 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:56:22,181 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:56:22,185 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:56:22,186 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:56:22,187 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:56:22,187 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:56:22,188 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:56:22,189 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:56:22,190 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:56:22,190 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:56:22,199 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:56:22,202 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:56:22,204 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:56:22,205 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:56:22,205 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:56:22,206 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:56:22,219 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:56:22,220 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:56:22,220 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:56:22,221 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:56:22,221 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:56:22,222 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:56:22,222 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:56:22,223 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:56:22,223 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:56:22,225 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:56:22,225 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:56:22,225 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:56:22,226 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:56:22,226 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:56:22,226 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2cd17cea-647e-4866-8ede-77dea025a27d/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 08:56:22,238 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:56:22,239 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:56:22,244 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:56:22,245 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:56:22,246 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 08:56:22,246 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 08:56:22,246 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 08:56:22,246 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 08:56:22,246 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 08:56:22,247 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 08:56:22,247 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 08:56:22,247 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:56:22,247 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:56:22,247 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 08:56:22,247 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 08:56:22,248 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:56:22,248 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:56:22,248 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 08:56:22,248 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 08:56:22,248 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 08:56:22,248 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:56:22,248 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:56:22,249 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 08:56:22,249 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:56:22,249 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 08:56:22,249 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:56:22,249 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:56:22,249 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 08:56:22,250 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:56:22,250 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 08:56:22,250 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 08:56:22,251 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 08:56:22,251 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_2cd17cea-647e-4866-8ede-77dea025a27d/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 -> e5628f313afbfffa53e61454ca424855ee3b0eb7 [2018-11-18 08:56:22,291 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:56:22,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:56:22,308 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:56:22,310 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:56:22,310 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:56:22,311 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2cd17cea-647e-4866-8ede-77dea025a27d/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product60_true-unreach-call_false-termination.cil.c [2018-11-18 08:56:22,378 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2cd17cea-647e-4866-8ede-77dea025a27d/bin-2019/uautomizer/data/b050430e1/bddc492e10e84d47b30ddd6a4409254e/FLAG7a5f3d931 [2018-11-18 08:56:22,782 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:56:22,783 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2cd17cea-647e-4866-8ede-77dea025a27d/sv-benchmarks/c/product-lines/minepump_spec4_product60_true-unreach-call_false-termination.cil.c [2018-11-18 08:56:22,792 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2cd17cea-647e-4866-8ede-77dea025a27d/bin-2019/uautomizer/data/b050430e1/bddc492e10e84d47b30ddd6a4409254e/FLAG7a5f3d931 [2018-11-18 08:56:22,804 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2cd17cea-647e-4866-8ede-77dea025a27d/bin-2019/uautomizer/data/b050430e1/bddc492e10e84d47b30ddd6a4409254e [2018-11-18 08:56:22,807 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:56:22,808 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 08:56:22,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:56:22,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:56:22,812 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:56:22,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:56:22" (1/1) ... [2018-11-18 08:56:22,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29e2c184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:22, skipping insertion in model container [2018-11-18 08:56:22,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:56:22" (1/1) ... [2018-11-18 08:56:22,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:56:22,858 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:56:23,166 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:56:23,184 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:56:23,314 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:56:23,354 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:56:23,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:23 WrapperNode [2018-11-18 08:56:23,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:56:23,355 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 08:56:23,355 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 08:56:23,355 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 08:56:23,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:23" (1/1) ... [2018-11-18 08:56:23,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:23" (1/1) ... [2018-11-18 08:56:23,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 08:56:23,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:56:23,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:56:23,403 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:56:23,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:23" (1/1) ... [2018-11-18 08:56:23,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:23" (1/1) ... [2018-11-18 08:56:23,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:23" (1/1) ... [2018-11-18 08:56:23,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:23" (1/1) ... [2018-11-18 08:56:23,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:23" (1/1) ... [2018-11-18 08:56:23,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:23" (1/1) ... [2018-11-18 08:56:23,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:23" (1/1) ... [2018-11-18 08:56:23,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:56:23,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:56:23,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:56:23,454 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:56:23,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cd17cea-647e-4866-8ede-77dea025a27d/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 08:56:23,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 08:56:23,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:56:23,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:56:24,686 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:56:24,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:56:24 BoogieIcfgContainer [2018-11-18 08:56:24,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:56:24,687 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 08:56:24,687 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 08:56:24,689 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 08:56:24,690 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:56:24,690 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:56:22" (1/3) ... [2018-11-18 08:56:24,691 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b8f9a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:56:24, skipping insertion in model container [2018-11-18 08:56:24,691 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:56:24,691 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:23" (2/3) ... [2018-11-18 08:56:24,691 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b8f9a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:56:24, skipping insertion in model container [2018-11-18 08:56:24,691 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 08:56:24,691 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:56:24" (3/3) ... [2018-11-18 08:56:24,692 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product60_true-unreach-call_false-termination.cil.c [2018-11-18 08:56:24,732 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 08:56:24,732 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 08:56:24,732 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 08:56:24,733 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 08:56:24,733 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:56:24,733 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:56:24,733 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 08:56:24,733 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:56:24,733 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 08:56:24,748 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 193 states. [2018-11-18 08:56:24,779 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 127 [2018-11-18 08:56:24,780 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:56:24,780 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:56:24,786 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:56:24,787 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:56:24,787 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 08:56:24,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 193 states. [2018-11-18 08:56:24,794 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 127 [2018-11-18 08:56:24,794 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:56:24,794 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:56:24,795 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:56:24,795 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:56:24,802 INFO L794 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(30);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(9);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(21);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(30);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(9);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(21);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(25);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(25);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(13);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 110];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 44];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 80];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 117];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 109];#memory_int := #memory_int[#t~string50.base,4 + #t~string50.offset := 112];#memory_int := #memory_int[#t~string50.base,5 + #t~string50.offset := 58];#memory_int := #memory_int[#t~string50.base,6 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 110];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,3 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 41];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 32];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 10];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(13);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 44];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 77];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 101];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 116];#memory_int := #memory_int[#t~string68.base,4 + #t~string68.offset := 104];#memory_int := #memory_int[#t~string68.base,5 + #t~string68.offset := 58];#memory_int := #memory_int[#t~string68.base,6 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 67];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 82];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 73];#memory_int := #memory_int[#t~string70.base,3 + #t~string70.offset := 84];#memory_int := #memory_int[#t~string70.base,4 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 79];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 75];#memory_int := #memory_int[#t~string72.base,2 + #t~string72.offset := 0];call #t~string74.base, #t~string74.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string74.base,#t~string74.offset := 41];#memory_int := #memory_int[#t~string74.base,1 + #t~string74.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret1, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 10#L65true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 160#L58true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 85#L73true main_#t~ret1 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret1;havoc main_#t~ret1; 61#L165true assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 46#L141true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 48#L840-3true [2018-11-18 08:56:24,802 INFO L796 eck$LassoCheckResult]: Loop: 48#L840-3true assume true; 44#L840-1true assume !false; 9#L841true assume test_~splverifierCounter~0 < 4; 73#L842true test_~tmp~10 := test_#t~nondet61;havoc test_#t~nondet61; 175#L850true assume !(0 != test_~tmp~10); 181#L850-2true test_~tmp___0~3 := test_#t~nondet62;havoc test_#t~nondet62; 103#L860true assume !(0 != test_~tmp___0~3); 107#L860-2true test_~tmp___2~0 := test_#t~nondet63;havoc test_#t~nondet63; 59#L870true assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet64;havoc test_#t~nondet64; 166#L878true assume !(0 != test_~tmp___1~0); 167#L878-2true assume { :begin_inline_timeShift } true; 6#L599true assume !(0 != ~pumpRunning~0); 7#L599-2true assume !(0 != ~systemActive~0); 151#L606-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret37, __utac_acc__Specification4_spec__1_#t~ret38, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 70#L974true __utac_acc__Specification4_spec__1_#t~ret37 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret37;havoc __utac_acc__Specification4_spec__1_#t~ret37; 63#L556true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 65#L556-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 74#L616true assume { :end_inline_timeShift } true; 48#L840-3true [2018-11-18 08:56:24,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:56:24,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 08:56:24,821 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:56:24,821 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:56:24,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:24,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:56:24,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:24,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:56:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:56:25,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:56:25,012 INFO L82 PathProgramCache]: Analyzing trace with hash 729211169, now seen corresponding path program 1 times [2018-11-18 08:56:25,012 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:56:25,013 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:56:25,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:25,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:56:25,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:56:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:56:25,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:56:25,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1911852517, now seen corresponding path program 1 times [2018-11-18 08:56:25,029 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:56:25,029 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:56:25,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:25,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:56:25,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:56:25,241 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 08:56:25,243 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:56:25,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 08:56:25,369 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-11-18 08:56:25,496 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-11-18 08:56:25,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 08:56:25,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 08:56:25,530 INFO L87 Difference]: Start difference. First operand 193 states. Second operand 6 states. [2018-11-18 08:56:26,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:56:26,233 INFO L93 Difference]: Finished difference Result 620 states and 808 transitions. [2018-11-18 08:56:26,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 08:56:26,237 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 620 states and 808 transitions. [2018-11-18 08:56:26,248 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 408 [2018-11-18 08:56:26,257 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 620 states to 580 states and 768 transitions. [2018-11-18 08:56:26,258 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 580 [2018-11-18 08:56:26,260 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 580 [2018-11-18 08:56:26,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 580 states and 768 transitions. [2018-11-18 08:56:26,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:56:26,264 INFO L705 BuchiCegarLoop]: Abstraction has 580 states and 768 transitions. [2018-11-18 08:56:26,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states and 768 transitions. [2018-11-18 08:56:26,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 234. [2018-11-18 08:56:26,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2018-11-18 08:56:26,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 309 transitions. [2018-11-18 08:56:26,337 INFO L728 BuchiCegarLoop]: Abstraction has 234 states and 309 transitions. [2018-11-18 08:56:26,337 INFO L608 BuchiCegarLoop]: Abstraction has 234 states and 309 transitions. [2018-11-18 08:56:26,337 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 08:56:26,338 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 234 states and 309 transitions. [2018-11-18 08:56:26,339 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 165 [2018-11-18 08:56:26,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:56:26,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:56:26,340 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:56:26,340 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:56:26,340 INFO L794 eck$LassoCheckResult]: Stem: 999#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(30);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(9);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(21);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(30);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(9);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(21);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(25);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(25);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(13);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 110];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 44];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 80];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 117];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 109];#memory_int := #memory_int[#t~string50.base,4 + #t~string50.offset := 112];#memory_int := #memory_int[#t~string50.base,5 + #t~string50.offset := 58];#memory_int := #memory_int[#t~string50.base,6 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 110];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,3 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 41];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 32];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 10];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(13);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 44];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 77];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 101];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 116];#memory_int := #memory_int[#t~string68.base,4 + #t~string68.offset := 104];#memory_int := #memory_int[#t~string68.base,5 + #t~string68.offset := 58];#memory_int := #memory_int[#t~string68.base,6 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 67];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 82];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 73];#memory_int := #memory_int[#t~string70.base,3 + #t~string70.offset := 84];#memory_int := #memory_int[#t~string70.base,4 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 79];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 75];#memory_int := #memory_int[#t~string72.base,2 + #t~string72.offset := 0];call #t~string74.base, #t~string74.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string74.base,#t~string74.offset := 41];#memory_int := #memory_int[#t~string74.base,1 + #t~string74.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 851#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret1, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 852#L65 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 856#L58 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 849#L73 main_#t~ret1 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret1;havoc main_#t~ret1; 850#L165 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 981#L141 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 982#L840-3 [2018-11-18 08:56:26,341 INFO L796 eck$LassoCheckResult]: Loop: 982#L840-3 assume true; 978#L840-1 assume !false; 853#L841 assume test_~splverifierCounter~0 < 4; 854#L842 test_~tmp~10 := test_#t~nondet61;havoc test_#t~nondet61; 1005#L850 assume !(0 != test_~tmp~10); 972#L850-2 test_~tmp___0~3 := test_#t~nondet62;havoc test_#t~nondet62; 894#L860 assume !(0 != test_~tmp___0~3); 886#L860-2 test_~tmp___2~0 := test_#t~nondet63;havoc test_#t~nondet63; 898#L870 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 993#L826 assume { :end_inline_startSystem } true; 995#L878-2 assume { :begin_inline_timeShift } true; 841#L599 assume !(0 != ~pumpRunning~0); 842#L599-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 848#L657 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 963#L631-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 911#L623-3 assume { :end_inline_processEnvironment__wrappee__base } true; 906#L631-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 832#L657-1 assume { :end_inline_processEnvironment } true; 975#L606-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret37, __utac_acc__Specification4_spec__1_#t~ret38, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 976#L974 __utac_acc__Specification4_spec__1_#t~ret37 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret37;havoc __utac_acc__Specification4_spec__1_#t~ret37; 996#L556 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 896#L556-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 997#L616 assume { :end_inline_timeShift } true; 982#L840-3 [2018-11-18 08:56:26,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:56:26,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 08:56:26,341 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:56:26,341 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:56:26,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:26,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:56:26,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:56:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:56:26,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:56:26,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1065290382, now seen corresponding path program 1 times [2018-11-18 08:56:26,428 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:56:26,428 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:56:26,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:26,430 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:56:26,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:56:26,477 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 08:56:26,477 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:56:26,477 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:56:26,477 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 08:56:26,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:56:26,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:56:26,478 INFO L87 Difference]: Start difference. First operand 234 states and 309 transitions. cyclomatic complexity: 78 Second operand 3 states. [2018-11-18 08:56:26,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:56:26,846 INFO L93 Difference]: Finished difference Result 293 states and 369 transitions. [2018-11-18 08:56:26,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:56:26,849 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 293 states and 369 transitions. [2018-11-18 08:56:26,851 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 211 [2018-11-18 08:56:26,853 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 293 states to 293 states and 369 transitions. [2018-11-18 08:56:26,854 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 293 [2018-11-18 08:56:26,854 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 293 [2018-11-18 08:56:26,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 293 states and 369 transitions. [2018-11-18 08:56:26,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 08:56:26,856 INFO L705 BuchiCegarLoop]: Abstraction has 293 states and 369 transitions. [2018-11-18 08:56:26,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states and 369 transitions. [2018-11-18 08:56:26,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2018-11-18 08:56:26,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2018-11-18 08:56:26,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 369 transitions. [2018-11-18 08:56:26,866 INFO L728 BuchiCegarLoop]: Abstraction has 293 states and 369 transitions. [2018-11-18 08:56:26,866 INFO L608 BuchiCegarLoop]: Abstraction has 293 states and 369 transitions. [2018-11-18 08:56:26,866 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 08:56:26,866 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 293 states and 369 transitions. [2018-11-18 08:56:26,868 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 211 [2018-11-18 08:56:26,869 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 08:56:26,869 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 08:56:26,871 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:56:26,872 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] [2018-11-18 08:56:26,872 INFO L794 eck$LassoCheckResult]: Stem: 1542#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(30);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(9);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(21);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(30);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(9);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(21);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(25);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(25);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(13);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 110];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 79];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,2 + #t~string48.offset := 102];#memory_int := #memory_int[#t~string48.base,3 + #t~string48.offset := 0];call #t~string50.base, #t~string50.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string50.base,#t~string50.offset := 44];#memory_int := #memory_int[#t~string50.base,1 + #t~string50.offset := 80];#memory_int := #memory_int[#t~string50.base,2 + #t~string50.offset := 117];#memory_int := #memory_int[#t~string50.base,3 + #t~string50.offset := 109];#memory_int := #memory_int[#t~string50.base,4 + #t~string50.offset := 112];#memory_int := #memory_int[#t~string50.base,5 + #t~string50.offset := 58];#memory_int := #memory_int[#t~string50.base,6 + #t~string50.offset := 0];call #t~string52.base, #t~string52.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string52.base,#t~string52.offset := 79];#memory_int := #memory_int[#t~string52.base,1 + #t~string52.offset := 110];#memory_int := #memory_int[#t~string52.base,2 + #t~string52.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 102];#memory_int := #memory_int[#t~string54.base,3 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 41];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 32];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 10];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(13);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 44];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 77];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 101];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 116];#memory_int := #memory_int[#t~string68.base,4 + #t~string68.offset := 104];#memory_int := #memory_int[#t~string68.base,5 + #t~string68.offset := 58];#memory_int := #memory_int[#t~string68.base,6 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 67];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 82];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 73];#memory_int := #memory_int[#t~string70.base,3 + #t~string70.offset := 84];#memory_int := #memory_int[#t~string70.base,4 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 79];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 75];#memory_int := #memory_int[#t~string72.base,2 + #t~string72.offset := 0];call #t~string74.base, #t~string74.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string74.base,#t~string74.offset := 41];#memory_int := #memory_int[#t~string74.base,1 + #t~string74.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1383#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret1, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 1384#L65 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1388#L58 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1381#L73 main_#t~ret1 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret1;havoc main_#t~ret1; 1382#L165 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 1519#L141 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1520#L840-3 [2018-11-18 08:56:26,872 INFO L796 eck$LassoCheckResult]: Loop: 1520#L840-3 assume true; 1623#L840-1 assume !false; 1385#L841 assume test_~splverifierCounter~0 < 4; 1386#L842 test_~tmp~10 := test_#t~nondet61;havoc test_#t~nondet61; 1548#L850 assume !(0 != test_~tmp~10); 1507#L850-2 test_~tmp___0~3 := test_#t~nondet62;havoc test_#t~nondet62; 1424#L860 assume !(0 != test_~tmp___0~3); 1417#L860-2 test_~tmp___2~0 := test_#t~nondet63;havoc test_#t~nondet63; 1431#L870 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1536#L826 assume { :end_inline_startSystem } true; 1538#L878-2 assume { :begin_inline_timeShift } true; 1374#L599 assume !(0 != ~pumpRunning~0); 1375#L599-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1380#L657 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1497#L631-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 1498#L982-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 1393#L987-1 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 1394#L777-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 1434#L777-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1395#L783-1 processEnvironment__wrappee__highWaterSensor_#t~ret39 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret39;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39; 1396#L635-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 1438#L623-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1439#L631-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1365#L657-1 assume { :end_inline_processEnvironment } true; 1561#L606-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret37, __utac_acc__Specification4_spec__1_#t~ret38, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 1632#L974 __utac_acc__Specification4_spec__1_#t~ret37 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret37;havoc __utac_acc__Specification4_spec__1_#t~ret37; 1629#L556 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 1627#L556-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1626#L616 assume { :end_inline_timeShift } true; 1520#L840-3 [2018-11-18 08:56:26,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:56:26,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 08:56:26,873 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:56:26,873 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:56:26,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:26,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:56:26,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:56:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:56:26,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:56:26,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1472687738, now seen corresponding path program 1 times [2018-11-18 08:56:26,937 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:56:26,937 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:56:26,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:26,938 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 08:56:26,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:56:26,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:56:26,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:56:26,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1598422462, now seen corresponding path program 1 times [2018-11-18 08:56:26,953 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:56:26,953 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:56:26,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:26,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:56:26,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:26,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:56:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:56:27,588 WARN L180 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2018-11-18 08:56:27,739 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-11-18 08:57:38,775 WARN L180 SmtUtils]: Spent 1.18 m on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 08:58:12,988 WARN L180 SmtUtils]: Spent 34.21 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 08:58:13,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:58:13 BoogieIcfgContainer [2018-11-18 08:58:13,049 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 08:58:13,049 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:58:13,049 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:58:13,049 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:58:13,050 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:56:24" (3/4) ... [2018-11-18 08:58:13,052 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 08:58:13,092 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2cd17cea-647e-4866-8ede-77dea025a27d/bin-2019/uautomizer/witness.graphml [2018-11-18 08:58:13,093 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:58:13,093 INFO L168 Benchmark]: Toolchain (without parser) took 110285.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 197.1 MB). Free memory was 957.0 MB in the beginning and 1.2 GB in the end (delta: -221.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:58:13,094 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:58:13,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 545.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 957.0 MB in the beginning and 1.1 GB in the end (delta: -156.4 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2018-11-18 08:58:13,094 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.11 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: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 11.5 GB. [2018-11-18 08:58:13,094 INFO L168 Benchmark]: Boogie Preprocessor took 50.52 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-18 08:58:13,094 INFO L168 Benchmark]: RCFGBuilder took 1232.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.9 MB). Peak memory consumption was 67.9 MB. Max. memory is 11.5 GB. [2018-11-18 08:58:13,095 INFO L168 Benchmark]: BuchiAutomizer took 108361.48 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -149.1 MB). Peak memory consumption was 337.3 MB. Max. memory is 11.5 GB. [2018-11-18 08:58:13,095 INFO L168 Benchmark]: Witness Printer took 43.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-11-18 08:58:13,097 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 545.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 957.0 MB in the beginning and 1.1 GB in the end (delta: -156.4 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.11 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: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.52 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1232.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.9 MB). Peak memory consumption was 67.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 108361.48 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -149.1 MB). Peak memory consumption was 337.3 MB. Max. memory is 11.5 GB. * Witness Printer took 43.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 293 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 108.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 107.0s. Construction of modules took 0.7s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 346 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 293 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 476 SDtfs, 1346 SDslu, 1578 SDs, 0 SdLazy, 83 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 840]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {retValue_acc=1, NULL=0, "On"=0, retValue_acc=0, "On"=22, "Pump(System:"=0, "OK"=12, ") "=16, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72da2496=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5990c2e2=0, tmp___0=0, ",Meth:"=0, "libacc.c"=26, "Env(Water:%i"=0, retValue_acc=0, ",Meth:"=8, tmp___1=0, "i > 0 && i <= this->argsCount"=31, "i > 0 && i <= this->argsCount"=35, "i > 0 && i <= this->argsCount"=38, tmp___0=0, cleanupTimeShifts=4, "__utac__get_this_argtype"=24, "__utac__get_this_arg"=33, "__utac__get_this_argtype"=28, ",Pump:"=19, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74487ffe=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@443a23f8=0, NULL=0, systemActive=1, waterLevel=1, \result=1, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@116703b6=0, "\n"=15, \result=0, "Pump(System:"=23, "Off"=0, "On"=0, ",Pump:"=0, "\n"=0, ") "=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, "On"=18, "libacc.c"=37, ")"=39, "Env(Water:%i"=14, "CRIT"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@476ff4ac=0, "libacc.c"=0, "__utac__get_this_argtype"=0, \result=1, "Off"=20, "__utac__get_this_arg"=36, "OK"=0, tmp=1, ")"=0, retValue_acc=1, tmp=0, tmp___0=0, tmp=1, retValue_acc=1, tmp___2=158, "libacc.c"=29, splverifierCounter=0, "CRIT"=11, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33a6d352=0, "libacc.c"=34, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d7724e6=158, "libacc.c"=0, tmp=0, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1586d24=0, "i > 0 && i <= this->argsCount"=27, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e764b96=0, "__utac__get_this_argtype"=0, "__utac__get_this_arg"=0, "Off"=17, "Off"=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 840]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L476] FCALL "i > 0 && i <= this->argsCount" [L476] FCALL "libacc.c" [L477] FCALL "__utac__get_this_arg" [L483] FCALL "i > 0 && i <= this->argsCount" [L483] FCALL "libacc.c" [L484] FCALL "__utac__get_this_arg" [L522] FCALL "i > 0 && i <= this->argsCount" [L522] FCALL "libacc.c" [L523] FCALL "__utac__get_this_argtype" [L529] FCALL "i > 0 && i <= this->argsCount" [L529] FCALL "libacc.c" [L530] FCALL "__utac__get_this_argtype" [L737] FCALL "Pump(System:" [L741] FCALL "On" [L745] FCALL "Off" [L749] FCALL ",Pump:" [L753] FCALL "On" [L757] FCALL "Off" [L761] FCALL ") " [L763] FCALL "\n" [L951] FCALL "Env(Water:%i" [L952] FCALL ",Meth:" [L956] FCALL "CRIT" [L960] FCALL "OK" [L964] FCALL ")" [L78] int cleanupTimeShifts = 4; [L592] int pumpRunning = 0; [L593] int systemActive = 1; [L899] int waterLevel = 1; [L900] int methaneLevelCritical = 0; [L348] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L156] int retValue_acc ; [L157] int tmp ; [L161] FCALL select_helpers() [L162] FCALL select_features() [L163] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] RET return (retValue_acc); [L163] EXPR valid_product() [L163] tmp = valid_product() [L165] COND TRUE \read(tmp) [L167] FCALL setup() [L168] CALL runTest() [L150] CALL test() [L831] int splverifierCounter ; [L832] int tmp ; [L833] int tmp___0 ; [L834] int tmp___1 ; [L835] int tmp___2 ; [L838] splverifierCounter = 0 Loop: [L840] COND TRUE 1 [L842] COND TRUE splverifierCounter < 4 [L848] tmp = __VERIFIER_nondet_int() [L850] COND FALSE !(\read(tmp)) [L858] tmp___0 = __VERIFIER_nondet_int() [L860] COND FALSE !(\read(tmp___0)) [L868] tmp___2 = __VERIFIER_nondet_int() [L870] COND TRUE \read(tmp___2) [L872] CALL startSystem() [L825] RET systemActive = 1 [L872] startSystem() [L887] CALL timeShift() [L599] COND FALSE !(\read(pumpRunning)) [L606] COND TRUE \read(systemActive) [L608] CALL processEnvironment() [L654] int tmp ; [L657] COND FALSE !(\read(pumpRunning)) [L672] CALL processEnvironment__wrappee__highWaterSensor() [L628] int tmp ; [L631] COND TRUE ! pumpRunning [L633] CALL, EXPR isHighWaterLevel() [L769] int retValue_acc ; [L770] int tmp ; [L771] int tmp___0 ; [L775] CALL, EXPR isHighWaterSensorDry() [L979] int retValue_acc ; [L982] COND TRUE waterLevel < 2 [L983] retValue_acc = 1 [L984] RET return (retValue_acc); [L775] EXPR isHighWaterSensorDry() [L775] tmp = isHighWaterSensorDry() [L777] COND TRUE \read(tmp) [L778] tmp___0 = 0 [L782] retValue_acc = tmp___0 [L783] RET return (retValue_acc); [L633] EXPR isHighWaterLevel() [L633] tmp = isHighWaterLevel() [L635] COND FALSE !(\read(tmp)) [L641] RET, FCALL processEnvironment__wrappee__base() [L672] RET processEnvironment__wrappee__highWaterSensor() [L608] processEnvironment() [L614] CALL __utac_acc__Specification4_spec__1() [L549] int tmp ; [L550] int tmp___0 ; [L554] CALL, EXPR getWaterLevel() [L970] int retValue_acc ; [L973] retValue_acc = waterLevel [L974] RET return (retValue_acc); [L554] EXPR getWaterLevel() [L554] tmp = getWaterLevel() [L556] COND FALSE, RET !(tmp == 0) [L614] RET __utac_acc__Specification4_spec__1() [L887] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...