./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product63_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_397b0dda-0249-4d9e-a2aa-6b8e9bd88358/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_397b0dda-0249-4d9e-a2aa-6b8e9bd88358/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_397b0dda-0249-4d9e-a2aa-6b8e9bd88358/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_397b0dda-0249-4d9e-a2aa-6b8e9bd88358/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product63_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_397b0dda-0249-4d9e-a2aa-6b8e9bd88358/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_397b0dda-0249-4d9e-a2aa-6b8e9bd88358/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 06aae21f289bee6dc7cb083e66e9be5f9a234275 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 14:24:54,357 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:24:54,360 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:24:54,384 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:24:54,385 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:24:54,387 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:24:54,389 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:24:54,391 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:24:54,399 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:24:54,407 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:24:54,409 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:24:54,414 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:24:54,414 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:24:54,415 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:24:54,416 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:24:54,416 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:24:54,417 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:24:54,431 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:24:54,441 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:24:54,442 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:24:54,443 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:24:54,444 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:24:54,445 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:24:54,445 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:24:54,445 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:24:54,462 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:24:54,463 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:24:54,463 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:24:54,464 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:24:54,464 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:24:54,465 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:24:54,465 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:24:54,465 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:24:54,465 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:24:54,474 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:24:54,475 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:24:54,482 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_397b0dda-0249-4d9e-a2aa-6b8e9bd88358/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 14:24:54,509 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:24:54,517 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:24:54,519 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:24:54,519 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:24:54,519 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:24:54,520 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 14:24:54,520 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 14:24:54,520 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 14:24:54,520 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 14:24:54,520 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 14:24:54,520 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 14:24:54,520 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:24:54,520 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:24:54,521 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 14:24:54,521 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:24:54,521 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:24:54,521 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:24:54,521 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 14:24:54,521 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 14:24:54,521 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 14:24:54,521 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:24:54,521 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:24:54,522 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 14:24:54,522 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:24:54,522 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 14:24:54,522 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:24:54,522 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:24:54,522 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 14:24:54,522 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:24:54,523 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:24:54,523 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 14:24:54,523 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 14:24:54,523 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_397b0dda-0249-4d9e-a2aa-6b8e9bd88358/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 -> 06aae21f289bee6dc7cb083e66e9be5f9a234275 [2018-11-18 14:24:54,597 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:24:54,634 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:24:54,637 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:24:54,646 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:24:54,646 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:24:54,647 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_397b0dda-0249-4d9e-a2aa-6b8e9bd88358/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product63_true-unreach-call_false-termination.cil.c [2018-11-18 14:24:54,700 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_397b0dda-0249-4d9e-a2aa-6b8e9bd88358/bin-2019/uautomizer/data/b943bb8d1/d09e3e49c1414ddcaaf5c86933cffbac/FLAG68fab567d [2018-11-18 14:24:55,265 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:24:55,271 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_397b0dda-0249-4d9e-a2aa-6b8e9bd88358/sv-benchmarks/c/product-lines/minepump_spec1_product63_true-unreach-call_false-termination.cil.c [2018-11-18 14:24:55,281 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_397b0dda-0249-4d9e-a2aa-6b8e9bd88358/bin-2019/uautomizer/data/b943bb8d1/d09e3e49c1414ddcaaf5c86933cffbac/FLAG68fab567d [2018-11-18 14:24:55,575 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_397b0dda-0249-4d9e-a2aa-6b8e9bd88358/bin-2019/uautomizer/data/b943bb8d1/d09e3e49c1414ddcaaf5c86933cffbac [2018-11-18 14:24:55,578 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:24:55,579 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:24:55,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:24:55,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:24:55,582 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:24:55,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:24:55" (1/1) ... [2018-11-18 14:24:55,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44c74022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:24:55, skipping insertion in model container [2018-11-18 14:24:55,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:24:55" (1/1) ... [2018-11-18 14:24:55,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:24:55,641 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:24:55,928 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:24:55,946 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:24:56,064 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:24:56,207 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:24:56,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:24:56 WrapperNode [2018-11-18 14:24:56,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:24:56,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:24:56,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:24:56,209 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:24:56,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:24:56" (1/1) ... [2018-11-18 14:24:56,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:24:56" (1/1) ... [2018-11-18 14:24:56,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:24:56,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:24:56,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:24:56,299 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:24:56,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:24:56" (1/1) ... [2018-11-18 14:24:56,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:24:56" (1/1) ... [2018-11-18 14:24:56,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:24:56" (1/1) ... [2018-11-18 14:24:56,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:24:56" (1/1) ... [2018-11-18 14:24:56,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:24:56" (1/1) ... [2018-11-18 14:24:56,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:24:56" (1/1) ... [2018-11-18 14:24:56,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:24:56" (1/1) ... [2018-11-18 14:24:56,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:24:56,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:24:56,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:24:56,356 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:24:56,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:24:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_397b0dda-0249-4d9e-a2aa-6b8e9bd88358/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 14:24:56,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:24:56,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:24:56,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:24:57,691 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:24:57,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:24:57 BoogieIcfgContainer [2018-11-18 14:24:57,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:24:57,694 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 14:24:57,694 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 14:24:57,698 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 14:24:57,698 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:24:57,699 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 02:24:55" (1/3) ... [2018-11-18 14:24:57,700 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@468ae68f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:24:57, skipping insertion in model container [2018-11-18 14:24:57,700 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:24:57,700 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:24:56" (2/3) ... [2018-11-18 14:24:57,700 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@468ae68f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:24:57, skipping insertion in model container [2018-11-18 14:24:57,700 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:24:57,700 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:24:57" (3/3) ... [2018-11-18 14:24:57,702 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product63_true-unreach-call_false-termination.cil.c [2018-11-18 14:24:57,749 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:24:57,749 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 14:24:57,750 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 14:24:57,750 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 14:24:57,750 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:24:57,750 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:24:57,750 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 14:24:57,750 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:24:57,750 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 14:24:57,769 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 324 states. [2018-11-18 14:24:57,803 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2018-11-18 14:24:57,803 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:24:57,804 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:24:57,809 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:24:57,810 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:24:57,810 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 14:24:57,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 324 states. [2018-11-18 14:24:57,820 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2018-11-18 14:24:57,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:24:57,821 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:24:57,821 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:24:57,821 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:24:57,827 INFO L794 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string6.base, #t~string6.offset := #Ultimate.alloc(13);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 110];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 102];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 102];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 44];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 80];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 117];#memory_int := #memory_int[#t~string12.base,3 + #t~string12.offset := 109];#memory_int := #memory_int[#t~string12.base,4 + #t~string12.offset := 112];#memory_int := #memory_int[#t~string12.base,5 + #t~string12.offset := 58];#memory_int := #memory_int[#t~string12.base,6 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 110];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 79];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 102];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 102];#memory_int := #memory_int[#t~string16.base,3 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 41];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 32];#memory_int := #memory_int[#t~string18.base,2 + #t~string18.offset := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 10];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(21);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(30);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(9);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(21);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(25);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(25);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];~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~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~ret62, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 225#L1003true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 166#L996true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 79#L1011true main_#t~ret62 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret62;havoc main_#t~ret62; 151#L837true assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 188#L811true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 233#L320-3true [2018-11-18 14:24:57,827 INFO L796 eck$LassoCheckResult]: Loop: 233#L320-3true assume true; 252#L320-1true assume !false; 184#L321true assume test_~splverifierCounter~0 < 4; 295#L322true test_~tmp~6 := test_#t~nondet23;havoc test_#t~nondet23; 168#L330true assume !(0 != test_~tmp~6); 158#L330-2true test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 11#L340true assume !(0 != test_~tmp___0~2); 15#L340-2true test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 113#L350true assume 0 != test_~tmp___2~0; 70#L356-2true assume { :begin_inline_timeShift } true; 25#L59true assume !(0 != ~pumpRunning~0); 60#L59-2true assume !(0 != ~systemActive~0); 161#L66-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret63, __utac_acc__Specification1_spec__1_#t~ret64, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 318#L921-5true __utac_acc__Specification1_spec__1_#t~ret63 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret63;havoc __utac_acc__Specification1_spec__1_#t~ret63; 150#L859true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 152#L859-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 16#L76true assume { :end_inline_timeShift } true; 233#L320-3true [2018-11-18 14:24:57,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:24:57,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 14:24:57,834 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:24:57,835 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:24:57,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:24:57,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:24:57,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:24:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:24:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:24:58,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:24:58,044 INFO L82 PathProgramCache]: Analyzing trace with hash -610477005, now seen corresponding path program 1 times [2018-11-18 14:24:58,044 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:24:58,044 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:24:58,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:24:58,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:24:58,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:24:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:24:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:24:58,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:24:58,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1542158609, now seen corresponding path program 1 times [2018-11-18 14:24:58,059 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:24:58,059 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:24:58,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:24:58,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:24:58,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:24:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:24:58,337 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 14:24:58,339 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:24:58,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:24:58,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:24:58,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:24:58,467 INFO L87 Difference]: Start difference. First operand 324 states. Second operand 6 states. [2018-11-18 14:24:58,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:24:58,831 INFO L93 Difference]: Finished difference Result 701 states and 923 transitions. [2018-11-18 14:24:58,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 14:24:58,839 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 701 states and 923 transitions. [2018-11-18 14:24:58,852 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 461 [2018-11-18 14:24:58,865 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 701 states to 671 states and 893 transitions. [2018-11-18 14:24:58,868 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 671 [2018-11-18 14:24:58,870 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 671 [2018-11-18 14:24:58,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 671 states and 893 transitions. [2018-11-18 14:24:58,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:24:58,878 INFO L705 BuchiCegarLoop]: Abstraction has 671 states and 893 transitions. [2018-11-18 14:24:58,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states and 893 transitions. [2018-11-18 14:24:58,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 365. [2018-11-18 14:24:58,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2018-11-18 14:24:58,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 485 transitions. [2018-11-18 14:24:58,920 INFO L728 BuchiCegarLoop]: Abstraction has 365 states and 485 transitions. [2018-11-18 14:24:58,920 INFO L608 BuchiCegarLoop]: Abstraction has 365 states and 485 transitions. [2018-11-18 14:24:58,920 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 14:24:58,920 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 365 states and 485 transitions. [2018-11-18 14:24:58,922 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 252 [2018-11-18 14:24:58,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:24:58,923 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:24:58,923 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:24:58,923 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 14:24:58,924 INFO L794 eck$LassoCheckResult]: Stem: 1259#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string6.base, #t~string6.offset := #Ultimate.alloc(13);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 110];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 102];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 102];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 44];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 80];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 117];#memory_int := #memory_int[#t~string12.base,3 + #t~string12.offset := 109];#memory_int := #memory_int[#t~string12.base,4 + #t~string12.offset := 112];#memory_int := #memory_int[#t~string12.base,5 + #t~string12.offset := 58];#memory_int := #memory_int[#t~string12.base,6 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 110];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 79];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 102];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 102];#memory_int := #memory_int[#t~string16.base,3 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 41];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 32];#memory_int := #memory_int[#t~string18.base,2 + #t~string18.offset := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 10];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(21);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(30);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(9);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(21);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(25);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(25);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];~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1056#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 1057#L1003 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1274#L996 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1171#L1011 main_#t~ret62 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret62;havoc main_#t~ret62; 1172#L837 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 1252#L811 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1068#L320-3 [2018-11-18 14:24:58,924 INFO L796 eck$LassoCheckResult]: Loop: 1068#L320-3 assume true; 1316#L320-1 assume !false; 1287#L321 assume test_~splverifierCounter~0 < 4; 1288#L322 test_~tmp~6 := test_#t~nondet23;havoc test_#t~nondet23; 1276#L330 assume !(0 != test_~tmp~6); 1064#L330-2 test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 1058#L340 assume !(0 != test_~tmp___0~2); 1060#L340-2 test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 1066#L350 assume 0 != test_~tmp___2~0; 1146#L356-2 assume { :begin_inline_timeShift } true; 1083#L59 assume !(0 != ~pumpRunning~0); 1084#L59-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1141#L143 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret4, isMethaneAlarm_~retValue_acc~0;havoc isMethaneAlarm_~retValue_acc~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 1255#L921 isMethaneAlarm_#t~ret4 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0 := isMethaneAlarm_#t~ret4;havoc isMethaneAlarm_#t~ret4;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~0; 1246#L204 processEnvironment_#t~ret2 := isMethaneAlarm_#res;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2 := processEnvironment_#t~ret2;havoc processEnvironment_#t~ret2; 1104#L147 assume 0 != processEnvironment_~tmp~2;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1106#L194-1 assume { :end_inline_deactivatePump } true; 1270#L143-1 assume { :end_inline_processEnvironment } true; 1265#L66-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret63, __utac_acc__Specification1_spec__1_#t~ret64, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 1266#L921-5 __utac_acc__Specification1_spec__1_#t~ret63 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret63;havoc __utac_acc__Specification1_spec__1_#t~ret63; 1251#L859 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 1115#L859-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1067#L76 assume { :end_inline_timeShift } true; 1068#L320-3 [2018-11-18 14:24:58,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:24:58,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 14:24:58,924 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:24:58,925 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:24:58,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:24:58,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:24:58,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:24:58,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:24:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:24:58,973 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:24:58,973 INFO L82 PathProgramCache]: Analyzing trace with hash 2057320700, now seen corresponding path program 1 times [2018-11-18 14:24:58,973 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:24:58,973 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:24:58,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:24:58,974 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:24:58,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:24:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:24:59,035 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 14:24:59,035 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:24:59,036 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:24:59,036 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:24:59,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:24:59,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:24:59,037 INFO L87 Difference]: Start difference. First operand 365 states and 485 transitions. cyclomatic complexity: 123 Second operand 3 states. [2018-11-18 14:24:59,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:24:59,272 INFO L93 Difference]: Finished difference Result 369 states and 463 transitions. [2018-11-18 14:24:59,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:24:59,273 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 369 states and 463 transitions. [2018-11-18 14:24:59,276 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 261 [2018-11-18 14:24:59,278 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 369 states to 369 states and 463 transitions. [2018-11-18 14:24:59,278 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 369 [2018-11-18 14:24:59,278 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 369 [2018-11-18 14:24:59,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 369 states and 463 transitions. [2018-11-18 14:24:59,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:24:59,280 INFO L705 BuchiCegarLoop]: Abstraction has 369 states and 463 transitions. [2018-11-18 14:24:59,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states and 463 transitions. [2018-11-18 14:24:59,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2018-11-18 14:24:59,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2018-11-18 14:24:59,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 463 transitions. [2018-11-18 14:24:59,290 INFO L728 BuchiCegarLoop]: Abstraction has 369 states and 463 transitions. [2018-11-18 14:24:59,291 INFO L608 BuchiCegarLoop]: Abstraction has 369 states and 463 transitions. [2018-11-18 14:24:59,291 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 14:24:59,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 369 states and 463 transitions. [2018-11-18 14:24:59,292 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 261 [2018-11-18 14:24:59,292 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:24:59,292 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:24:59,293 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:24:59,293 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 14:24:59,293 INFO L794 eck$LassoCheckResult]: Stem: 1970#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string6.base, #t~string6.offset := #Ultimate.alloc(13);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 110];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 102];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 102];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 44];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 80];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 117];#memory_int := #memory_int[#t~string12.base,3 + #t~string12.offset := 109];#memory_int := #memory_int[#t~string12.base,4 + #t~string12.offset := 112];#memory_int := #memory_int[#t~string12.base,5 + #t~string12.offset := 58];#memory_int := #memory_int[#t~string12.base,6 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 110];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 79];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 102];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 102];#memory_int := #memory_int[#t~string16.base,3 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 41];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 32];#memory_int := #memory_int[#t~string18.base,2 + #t~string18.offset := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 10];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(21);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(30);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(9);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(21);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(25);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(25);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];~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1796#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 1797#L1003 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1982#L996 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1888#L1011 main_#t~ret62 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret62;havoc main_#t~ret62; 1889#L837 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 1964#L811 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1997#L320-3 [2018-11-18 14:24:59,293 INFO L796 eck$LassoCheckResult]: Loop: 1997#L320-3 assume true; 2127#L320-1 assume !false; 2126#L321 assume test_~splverifierCounter~0 < 4; 2125#L322 test_~tmp~6 := test_#t~nondet23;havoc test_#t~nondet23; 1984#L330 assume !(0 != test_~tmp~6); 1801#L330-2 test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 1793#L340 assume !(0 != test_~tmp___0~2); 1795#L340-2 test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 1803#L350 assume 0 != test_~tmp___2~0; 1869#L356-2 assume { :begin_inline_timeShift } true; 1821#L59 assume !(0 != ~pumpRunning~0); 1822#L59-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1864#L143 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret1, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1966#L117-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1998#L91-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret21, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 1927#L961-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~10 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 1928#L966-3 isHighWaterLevel_#t~ret21 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret21;havoc isHighWaterLevel_#t~ret21; 1880#L262-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 1877#L262-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1840#L268-3 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 1841#L95-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 2003#L83-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1920#L91-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1924#L117-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1977#L143-1 assume { :end_inline_processEnvironment } true; 1978#L66-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret63, __utac_acc__Specification1_spec__1_#t~ret64, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 2133#L921-5 __utac_acc__Specification1_spec__1_#t~ret63 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret63;havoc __utac_acc__Specification1_spec__1_#t~ret63; 2131#L859 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 2129#L859-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 2128#L76 assume { :end_inline_timeShift } true; 1997#L320-3 [2018-11-18 14:24:59,294 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:24:59,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 14:24:59,294 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:24:59,294 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:24:59,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:24:59,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:24:59,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:24:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:24:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:24:59,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:24:59,336 INFO L82 PathProgramCache]: Analyzing trace with hash -828969355, now seen corresponding path program 1 times [2018-11-18 14:24:59,336 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:24:59,337 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:24:59,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:24:59,337 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:24:59,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:24:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:24:59,395 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 14:24:59,395 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:24:59,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 14:24:59,396 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:24:59,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 14:24:59,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 14:24:59,396 INFO L87 Difference]: Start difference. First operand 369 states and 463 transitions. cyclomatic complexity: 97 Second operand 4 states. [2018-11-18 14:24:59,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:24:59,619 INFO L93 Difference]: Finished difference Result 1057 states and 1303 transitions. [2018-11-18 14:24:59,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:24:59,620 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1057 states and 1303 transitions. [2018-11-18 14:24:59,624 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 759 [2018-11-18 14:24:59,628 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1057 states to 1057 states and 1303 transitions. [2018-11-18 14:24:59,628 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1057 [2018-11-18 14:24:59,629 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1057 [2018-11-18 14:24:59,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1057 states and 1303 transitions. [2018-11-18 14:24:59,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:24:59,630 INFO L705 BuchiCegarLoop]: Abstraction has 1057 states and 1303 transitions. [2018-11-18 14:24:59,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states and 1303 transitions. [2018-11-18 14:24:59,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 387. [2018-11-18 14:24:59,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2018-11-18 14:24:59,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 481 transitions. [2018-11-18 14:24:59,647 INFO L728 BuchiCegarLoop]: Abstraction has 387 states and 481 transitions. [2018-11-18 14:24:59,647 INFO L608 BuchiCegarLoop]: Abstraction has 387 states and 481 transitions. [2018-11-18 14:24:59,647 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 14:24:59,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 387 states and 481 transitions. [2018-11-18 14:24:59,649 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 273 [2018-11-18 14:24:59,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:24:59,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:24:59,649 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:24:59,649 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 14:24:59,650 INFO L794 eck$LassoCheckResult]: Stem: 3415#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string6.base, #t~string6.offset := #Ultimate.alloc(13);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 110];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 102];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 102];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 44];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 80];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 117];#memory_int := #memory_int[#t~string12.base,3 + #t~string12.offset := 109];#memory_int := #memory_int[#t~string12.base,4 + #t~string12.offset := 112];#memory_int := #memory_int[#t~string12.base,5 + #t~string12.offset := 58];#memory_int := #memory_int[#t~string12.base,6 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 110];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 79];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 102];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 102];#memory_int := #memory_int[#t~string16.base,3 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 41];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 32];#memory_int := #memory_int[#t~string18.base,2 + #t~string18.offset := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 10];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(21);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(30);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(9);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(21);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(25);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(25);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];~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 3229#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 3230#L1003 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3427#L996 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 3324#L1011 main_#t~ret62 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret62;havoc main_#t~ret62; 3325#L837 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 3408#L811 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3241#L320-3 [2018-11-18 14:24:59,650 INFO L796 eck$LassoCheckResult]: Loop: 3241#L320-3 assume true; 3460#L320-1 assume !false; 3580#L321 assume test_~splverifierCounter~0 < 4; 3579#L322 test_~tmp~6 := test_#t~nondet23;havoc test_#t~nondet23; 3430#L330 assume !(0 != test_~tmp~6); 3237#L330-2 test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 3231#L340 assume !(0 != test_~tmp___0~2); 3233#L340-2 test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 3239#L350 assume 0 != test_~tmp___2~0; 3307#L356-2 assume { :begin_inline_timeShift } true; 3257#L59 assume !(0 != ~pumpRunning~0); 3258#L59-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 3302#L143 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret1, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 3410#L117-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 3444#L91-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret21, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 3367#L961-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~10 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 3368#L966-3 isHighWaterLevel_#t~ret21 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret21;havoc isHighWaterLevel_#t~ret21; 3318#L262-9 assume !(0 != isHighWaterLevel_~tmp~4);isHighWaterLevel_~tmp___0~0 := 1; 3313#L262-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 3274#L268-3 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 3275#L95-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 3449#L83-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3363#L91-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3364#L117-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3423#L143-1 assume { :end_inline_processEnvironment } true; 3417#L66-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret63, __utac_acc__Specification1_spec__1_#t~ret64, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 3418#L921-5 __utac_acc__Specification1_spec__1_#t~ret63 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret63;havoc __utac_acc__Specification1_spec__1_#t~ret63; 3407#L859 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 3279#L859-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 3240#L76 assume { :end_inline_timeShift } true; 3241#L320-3 [2018-11-18 14:24:59,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:24:59,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2018-11-18 14:24:59,650 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:24:59,650 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:24:59,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:24:59,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:24:59,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:24:59,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:24:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:24:59,681 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:24:59,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1415775369, now seen corresponding path program 1 times [2018-11-18 14:24:59,681 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:24:59,681 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:24:59,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:24:59,682 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:24:59,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:24:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:24:59,752 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 14:24:59,753 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:24:59,753 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:24:59,753 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:24:59,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:24:59,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:24:59,754 INFO L87 Difference]: Start difference. First operand 387 states and 481 transitions. cyclomatic complexity: 97 Second operand 5 states. [2018-11-18 14:25:00,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:25:00,078 INFO L93 Difference]: Finished difference Result 925 states and 1141 transitions. [2018-11-18 14:25:00,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:25:00,083 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 925 states and 1141 transitions. [2018-11-18 14:25:00,088 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 671 [2018-11-18 14:25:00,092 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 925 states to 925 states and 1141 transitions. [2018-11-18 14:25:00,093 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 925 [2018-11-18 14:25:00,094 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 925 [2018-11-18 14:25:00,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 925 states and 1141 transitions. [2018-11-18 14:25:00,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:25:00,095 INFO L705 BuchiCegarLoop]: Abstraction has 925 states and 1141 transitions. [2018-11-18 14:25:00,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states and 1141 transitions. [2018-11-18 14:25:00,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 414. [2018-11-18 14:25:00,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2018-11-18 14:25:00,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 508 transitions. [2018-11-18 14:25:00,111 INFO L728 BuchiCegarLoop]: Abstraction has 414 states and 508 transitions. [2018-11-18 14:25:00,111 INFO L608 BuchiCegarLoop]: Abstraction has 414 states and 508 transitions. [2018-11-18 14:25:00,111 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 14:25:00,111 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 414 states and 508 transitions. [2018-11-18 14:25:00,138 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 291 [2018-11-18 14:25:00,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:25:00,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:25:00,139 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:25:00,139 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 14:25:00,139 INFO L794 eck$LassoCheckResult]: Stem: 4745#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string6.base, #t~string6.offset := #Ultimate.alloc(13);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 110];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 102];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 102];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 44];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 80];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 117];#memory_int := #memory_int[#t~string12.base,3 + #t~string12.offset := 109];#memory_int := #memory_int[#t~string12.base,4 + #t~string12.offset := 112];#memory_int := #memory_int[#t~string12.base,5 + #t~string12.offset := 58];#memory_int := #memory_int[#t~string12.base,6 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 110];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 79];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 102];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 102];#memory_int := #memory_int[#t~string16.base,3 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 41];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 32];#memory_int := #memory_int[#t~string18.base,2 + #t~string18.offset := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 10];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 0];call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(21);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(30);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(9);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(21);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(25);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(25);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];~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 4558#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 4559#L1003 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4759#L996 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 4653#L1011 main_#t~ret62 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret62;havoc main_#t~ret62; 4654#L837 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 4739#L811 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 4773#L320-3 [2018-11-18 14:25:00,139 INFO L796 eck$LassoCheckResult]: Loop: 4773#L320-3 assume true; 4792#L320-1 assume !false; 4771#L321 assume test_~splverifierCounter~0 < 4; 4772#L322 test_~tmp~6 := test_#t~nondet23;havoc test_#t~nondet23; 4957#L330 assume !(0 != test_~tmp~6); 4955#L330-2 test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 4953#L340 assume !(0 != test_~tmp___0~2); 4951#L340-2 test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 4949#L350 assume 0 != test_~tmp___2~0; 4642#L356-2 assume { :begin_inline_timeShift } true; 4582#L59 assume !(0 != ~pumpRunning~0); 4583#L59-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 4628#L143 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret1, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 4741#L117-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 4774#L91-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret21, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 4698#L961-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 4700#L966-3 isHighWaterLevel_#t~ret21 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret21;havoc isHighWaterLevel_#t~ret21; 4852#L262-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 4851#L262-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 4850#L268-3 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 4849#L95-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 4812#L83-6 assume { :end_inline_processEnvironment__wrappee__base } true; 4691#L91-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4695#L117-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 4754#L143-1 assume { :end_inline_processEnvironment } true; 4755#L66-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret63, __utac_acc__Specification1_spec__1_#t~ret64, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 4932#L921-5 __utac_acc__Specification1_spec__1_#t~ret63 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret63;havoc __utac_acc__Specification1_spec__1_#t~ret63; 4930#L859 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 4928#L859-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 4927#L76 assume { :end_inline_timeShift } true; 4773#L320-3 [2018-11-18 14:25:00,140 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:25:00,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2018-11-18 14:25:00,140 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:25:00,140 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:25:00,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:25:00,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:25:00,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:25:00,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:25:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:25:00,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:25:00,177 INFO L82 PathProgramCache]: Analyzing trace with hash 450894323, now seen corresponding path program 1 times [2018-11-18 14:25:00,177 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:25:00,177 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:25:00,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:25:00,178 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:25:00,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:25:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:25:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:25:00,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:25:00,189 INFO L82 PathProgramCache]: Analyzing trace with hash 848085175, now seen corresponding path program 1 times [2018-11-18 14:25:00,189 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:25:00,189 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:25:00,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:25:00,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:25:00,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:25:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:25:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:25:00,353 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2018-11-18 14:26:59,312 WARN L180 SmtUtils]: Spent 1.98 m on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 14:27:58,689 WARN L180 SmtUtils]: Spent 59.38 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 14:27:58,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 02:27:58 BoogieIcfgContainer [2018-11-18 14:27:58,768 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 14:27:58,768 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:27:58,768 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:27:58,768 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:27:58,769 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:24:57" (3/4) ... [2018-11-18 14:27:58,771 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 14:27:58,826 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_397b0dda-0249-4d9e-a2aa-6b8e9bd88358/bin-2019/uautomizer/witness.graphml [2018-11-18 14:27:58,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:27:58,827 INFO L168 Benchmark]: Toolchain (without parser) took 183248.50 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 295.7 MB). Free memory was 953.1 MB in the beginning and 1.1 GB in the end (delta: -183.0 MB). Peak memory consumption was 112.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:27:58,827 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:27:58,827 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 950.4 MB in the beginning and 1.2 GB in the end (delta: -223.3 MB). Peak memory consumption was 36.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:27:58,828 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.96 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: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:27:58,828 INFO L168 Benchmark]: Boogie Preprocessor took 56.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:27:58,828 INFO L168 Benchmark]: RCFGBuilder took 1338.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 101.6 MB). Peak memory consumption was 101.6 MB. Max. memory is 11.5 GB. [2018-11-18 14:27:58,831 INFO L168 Benchmark]: BuchiAutomizer took 181073.53 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 109.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -77.0 MB). Peak memory consumption was 263.3 MB. Max. memory is 11.5 GB. [2018-11-18 14:27:58,831 INFO L168 Benchmark]: Witness Printer took 57.95 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:27:58,833 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 628.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 950.4 MB in the beginning and 1.2 GB in the end (delta: -223.3 MB). Peak memory consumption was 36.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 89.96 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: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1338.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 101.6 MB). Peak memory consumption was 101.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 181073.53 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 109.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -77.0 MB). Peak memory consumption was 263.3 MB. Max. memory is 11.5 GB. * Witness Printer took 57.95 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 414 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 181.0s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 179.5s. Construction of modules took 0.8s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1487 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 414 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1830 SDtfs, 3879 SDslu, 3403 SDs, 0 SdLazy, 310 SolverSat, 109 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time LassoAnalysisResults: nont1 unkn0 SFLI3 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: 320]: 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, "__utac__get_this_arg"=0, "Off"=33, "libacc.c"=17, "libacc.c"=0, "libacc.c"=24, "i > 0 && i <= this->argsCount"=0, retValue_acc=0, "OK"=38, retValue_acc=1, "__utac__get_this_argtype"=16, methaneLevelCritical=0, "On"=34, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17491c08=0, ",Meth:"=0, retValue_acc=0, tmp=0, "Env(Water:%i"=0, ",Meth:"=11, tmp___1=0, "On"=0, "Pump(System:"=0, tmp=0, "\n"=26, cleanupTimeShifts=4, tmp=0, tmp___0=0, "__utac__get_this_arg"=19, "i > 0 && i <= this->argsCount"=12, "On"=29, tmp=1, NULL=0, systemActive=1, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c793cfe=0, "On"=0, "libacc.c"=15, ",Pump:"=0, retValue_acc=0, "libacc.c"=0, ",Pump:"=31, \result=0, "Off"=0, "__utac__get_this_arg"=23, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_arg"=0, "libacc.c"=0, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=0, \result=1, ") "=27, head=0, pumpRunning=0, "libacc.c"=20, "i > 0 && i <= this->argsCount"=14, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d3d944e=0, ")"=39, "Env(Water:%i"=35, "CRIT"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3105815d=0, "Off"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a2d02e2=162, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1beb016=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ce86eca=0, ") "=0, \result=1, "i > 0 && i <= this->argsCount"=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6289816e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78d8c7b8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@336765bb=0, "OK"=0, tmp=1, ")"=0, tmp___2=162, tmp___0=0, retValue_acc=1, splverifierCounter=0, "__utac__get_this_argtype"=0, \result=0, "Pump(System:"=8, "CRIT"=37, "__utac__get_this_argtype"=36, tmp=0, head=0, tmp=0, "\n"=0, "Off"=28, "i > 0 && i <= this->argsCount"=18, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68f5cce2=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 320]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L222] FCALL "Pump(System:" [L226] FCALL "On" [L230] FCALL "Off" [L234] FCALL ",Pump:" [L238] FCALL "On" [L242] FCALL "Off" [L246] FCALL ") " [L248] FCALL "\n" [L683] FCALL "i > 0 && i <= this->argsCount" [L683] FCALL "libacc.c" [L684] FCALL "__utac__get_this_arg" [L690] FCALL "i > 0 && i <= this->argsCount" [L690] FCALL "libacc.c" [L691] FCALL "__utac__get_this_arg" [L729] FCALL "i > 0 && i <= this->argsCount" [L729] FCALL "libacc.c" [L730] FCALL "__utac__get_this_argtype" [L736] FCALL "i > 0 && i <= this->argsCount" [L736] FCALL "libacc.c" [L737] FCALL "__utac__get_this_argtype" [L930] FCALL "Env(Water:%i" [L931] FCALL ",Meth:" [L935] FCALL "CRIT" [L939] FCALL "OK" [L943] FCALL ")" [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L752] int cleanupTimeShifts = 4; [L878] int waterLevel = 1; [L879] int methaneLevelCritical = 0; [L555] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L828] int retValue_acc ; [L829] int tmp ; [L833] FCALL select_helpers() [L834] FCALL select_features() [L835] CALL, EXPR valid_product() [L1007] int retValue_acc ; [L1010] retValue_acc = 1 [L1011] RET return (retValue_acc); [L835] EXPR valid_product() [L835] tmp = valid_product() [L837] COND TRUE \read(tmp) [L839] FCALL setup() [L840] CALL runTest() [L819] CALL test() [L311] int splverifierCounter ; [L312] int tmp ; [L313] int tmp___0 ; [L314] int tmp___1 ; [L315] int tmp___2 ; [L318] splverifierCounter = 0 Loop: [L320] COND TRUE 1 [L322] COND TRUE splverifierCounter < 4 [L328] tmp = __VERIFIER_nondet_int() [L330] COND FALSE !(\read(tmp)) [L338] tmp___0 = __VERIFIER_nondet_int() [L340] COND FALSE !(\read(tmp___0)) [L348] tmp___2 = __VERIFIER_nondet_int() [L350] COND TRUE \read(tmp___2) [L365] CALL timeShift() [L59] COND FALSE !(\read(pumpRunning)) [L66] COND TRUE \read(systemActive) [L68] CALL processEnvironment() [L140] int tmp ; [L143] COND FALSE !(\read(pumpRunning)) [L158] CALL processEnvironment__wrappee__methaneQuery() [L114] int tmp ; [L117] COND FALSE !(\read(pumpRunning)) [L132] CALL processEnvironment__wrappee__highWaterSensor() [L88] int tmp ; [L91] COND TRUE ! pumpRunning [L93] CALL, EXPR isHighWaterLevel() [L254] int retValue_acc ; [L255] int tmp ; [L256] int tmp___0 ; [L260] CALL, EXPR isHighWaterSensorDry() [L958] int retValue_acc ; [L961] COND TRUE waterLevel < 2 [L962] retValue_acc = 1 [L963] RET return (retValue_acc); [L260] EXPR isHighWaterSensorDry() [L260] tmp = isHighWaterSensorDry() [L262] COND TRUE \read(tmp) [L263] tmp___0 = 0 [L267] retValue_acc = tmp___0 [L268] RET return (retValue_acc); [L93] EXPR isHighWaterLevel() [L93] tmp = isHighWaterLevel() [L95] COND FALSE !(\read(tmp)) [L101] RET, FCALL processEnvironment__wrappee__base() [L132] RET processEnvironment__wrappee__highWaterSensor() [L158] RET processEnvironment__wrappee__methaneQuery() [L68] processEnvironment() [L74] CALL __utac_acc__Specification1_spec__1() [L852] int tmp ; [L853] int tmp___0 ; [L857] CALL, EXPR isMethaneLevelCritical() [L917] int retValue_acc ; [L920] retValue_acc = methaneLevelCritical [L921] RET return (retValue_acc); [L857] EXPR isMethaneLevelCritical() [L857] tmp = isMethaneLevelCritical() [L859] COND FALSE, RET !(\read(tmp)) [L74] RET __utac_acc__Specification1_spec__1() [L365] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...