./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product58_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_276f802d-948d-436d-ba4c-b3ff601bb26e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_276f802d-948d-436d-ba4c-b3ff601bb26e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_276f802d-948d-436d-ba4c-b3ff601bb26e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_276f802d-948d-436d-ba4c-b3ff601bb26e/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product58_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_276f802d-948d-436d-ba4c-b3ff601bb26e/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_276f802d-948d-436d-ba4c-b3ff601bb26e/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 99a0574ff0f23dd43b458f22f446fd063a15f78d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 14:30:44,597 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:30:44,599 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:30:44,607 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:30:44,607 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:30:44,608 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:30:44,609 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:30:44,610 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:30:44,611 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:30:44,612 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:30:44,613 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:30:44,613 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:30:44,614 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:30:44,615 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:30:44,616 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:30:44,616 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:30:44,617 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:30:44,618 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:30:44,620 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:30:44,620 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:30:44,621 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:30:44,621 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:30:44,623 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:30:44,623 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:30:44,623 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:30:44,624 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:30:44,625 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:30:44,625 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:30:44,626 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:30:44,627 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:30:44,627 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:30:44,627 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:30:44,627 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:30:44,628 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:30:44,628 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:30:44,629 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:30:44,629 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_276f802d-948d-436d-ba4c-b3ff601bb26e/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 14:30:44,638 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:30:44,638 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:30:44,639 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:30:44,639 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:30:44,639 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:30:44,639 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 14:30:44,639 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 14:30:44,639 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 14:30:44,640 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 14:30:44,640 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 14:30:44,640 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 14:30:44,640 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:30:44,640 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:30:44,640 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 14:30:44,640 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:30:44,640 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:30:44,640 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:30:44,641 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 14:30:44,641 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 14:30:44,641 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 14:30:44,641 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:30:44,641 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:30:44,641 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 14:30:44,641 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:30:44,641 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 14:30:44,642 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:30:44,642 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:30:44,642 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 14:30:44,642 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:30:44,642 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:30:44,642 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 14:30:44,643 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 14:30:44,643 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_276f802d-948d-436d-ba4c-b3ff601bb26e/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 -> 99a0574ff0f23dd43b458f22f446fd063a15f78d [2018-11-18 14:30:44,666 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:30:44,674 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:30:44,676 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:30:44,677 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:30:44,678 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:30:44,678 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_276f802d-948d-436d-ba4c-b3ff601bb26e/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product58_true-unreach-call_false-termination.cil.c [2018-11-18 14:30:44,722 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_276f802d-948d-436d-ba4c-b3ff601bb26e/bin-2019/uautomizer/data/484e957fa/cf15877398a044d7b44596c07b625128/FLAG7c8eb0cc0 [2018-11-18 14:30:45,163 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:30:45,163 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_276f802d-948d-436d-ba4c-b3ff601bb26e/sv-benchmarks/c/product-lines/minepump_spec4_product58_true-unreach-call_false-termination.cil.c [2018-11-18 14:30:45,170 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_276f802d-948d-436d-ba4c-b3ff601bb26e/bin-2019/uautomizer/data/484e957fa/cf15877398a044d7b44596c07b625128/FLAG7c8eb0cc0 [2018-11-18 14:30:45,179 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_276f802d-948d-436d-ba4c-b3ff601bb26e/bin-2019/uautomizer/data/484e957fa/cf15877398a044d7b44596c07b625128 [2018-11-18 14:30:45,182 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:30:45,183 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:30:45,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:30:45,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:30:45,187 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:30:45,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:30:45" (1/1) ... [2018-11-18 14:30:45,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53053714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:45, skipping insertion in model container [2018-11-18 14:30:45,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:30:45" (1/1) ... [2018-11-18 14:30:45,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:30:45,230 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:30:45,411 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:30:45,420 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:30:45,516 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:30:45,538 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:30:45,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:45 WrapperNode [2018-11-18 14:30:45,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:30:45,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:30:45,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:30:45,540 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:30:45,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:45" (1/1) ... [2018-11-18 14:30:45,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:45" (1/1) ... [2018-11-18 14:30:45,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:30:45,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:30:45,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:30:45,593 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:30:45,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:45" (1/1) ... [2018-11-18 14:30:45,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:45" (1/1) ... [2018-11-18 14:30:45,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:45" (1/1) ... [2018-11-18 14:30:45,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:45" (1/1) ... [2018-11-18 14:30:45,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:45" (1/1) ... [2018-11-18 14:30:45,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:45" (1/1) ... [2018-11-18 14:30:45,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:45" (1/1) ... [2018-11-18 14:30:45,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:30:45,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:30:45,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:30:45,628 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:30:45,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_276f802d-948d-436d-ba4c-b3ff601bb26e/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 14:30:45,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:30:45,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:30:45,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:30:46,328 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:30:46,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:30:46 BoogieIcfgContainer [2018-11-18 14:30:46,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:30:46,329 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 14:30:46,329 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 14:30:46,332 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 14:30:46,332 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:30:46,332 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 02:30:45" (1/3) ... [2018-11-18 14:30:46,333 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6591f2d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:30:46, skipping insertion in model container [2018-11-18 14:30:46,333 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:30:46,334 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:45" (2/3) ... [2018-11-18 14:30:46,334 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6591f2d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:30:46, skipping insertion in model container [2018-11-18 14:30:46,334 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:30:46,334 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:30:46" (3/3) ... [2018-11-18 14:30:46,335 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product58_true-unreach-call_false-termination.cil.c [2018-11-18 14:30:46,369 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:30:46,370 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 14:30:46,370 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 14:30:46,370 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 14:30:46,370 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:30:46,370 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:30:46,370 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 14:30:46,370 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:30:46,371 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 14:30:46,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 189 states. [2018-11-18 14:30:46,408 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2018-11-18 14:30:46,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:30:46,408 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:30:46,417 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:30:46,417 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:30:46,417 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 14:30:46,417 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 189 states. [2018-11-18 14:30:46,424 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2018-11-18 14:30:46,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:30:46,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:30:46,425 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:30:46,425 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:30:46,429 INFO L794 eck$LassoCheckResult]: Stem: 151#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(13);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string40.base,#t~string40.offset := 44];#memory_int := #memory_int[#t~string40.base,1 + #t~string40.offset := 77];#memory_int := #memory_int[#t~string40.base,2 + #t~string40.offset := 101];#memory_int := #memory_int[#t~string40.base,3 + #t~string40.offset := 116];#memory_int := #memory_int[#t~string40.base,4 + #t~string40.offset := 104];#memory_int := #memory_int[#t~string40.base,5 + #t~string40.offset := 58];#memory_int := #memory_int[#t~string40.base,6 + #t~string40.offset := 0];call #t~string42.base, #t~string42.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 67];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 82];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 73];#memory_int := #memory_int[#t~string42.base,3 + #t~string42.offset := 84];#memory_int := #memory_int[#t~string42.base,4 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 79];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 75];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 41];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(13);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 110];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 79];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 44];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 80];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 117];#memory_int := #memory_int[#t~string60.base,3 + #t~string60.offset := 109];#memory_int := #memory_int[#t~string60.base,4 + #t~string60.offset := 112];#memory_int := #memory_int[#t~string60.base,5 + #t~string60.offset := 58];#memory_int := #memory_int[#t~string60.base,6 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 110];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 79];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 41];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 32];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 10];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret47, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 92#L678true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 183#L671true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 100#L686true main_#t~ret47 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret47;havoc main_#t~ret47; 105#L642true assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 58#L615true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 171#L927-3true [2018-11-18 14:30:46,430 INFO L796 eck$LassoCheckResult]: Loop: 171#L927-3true assume true; 167#L927-1true assume !false; 131#L928true assume test_~splverifierCounter~0 < 4; 33#L929true test_~tmp~10 := test_#t~nondet71;havoc test_#t~nondet71; 49#L937true assume !(0 != test_~tmp~10); 59#L937-2true test_~tmp___0~3 := test_#t~nondet72;havoc test_#t~nondet72; 135#L947true assume !(0 != test_~tmp___0~3); 140#L947-2true test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 187#L957true assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet74;havoc test_#t~nondet74; 21#L965true assume 0 != test_~tmp___1~0; 3#L965-2true assume { :begin_inline_timeShift } true; 188#L701true assume !(0 != ~pumpRunning~0); 190#L701-2true assume !(0 != ~systemActive~0); 102#L708-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret35, __utac_acc__Specification4_spec__1_#t~ret36, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 126#L526true __utac_acc__Specification4_spec__1_#t~ret35 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret35;havoc __utac_acc__Specification4_spec__1_#t~ret35; 34#L417true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 40#L417-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 155#L718true assume { :end_inline_timeShift } true; 171#L927-3true [2018-11-18 14:30:46,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:46,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 14:30:46,437 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:30:46,437 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:30:46,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:46,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:30:46,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:30:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:30:46,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:46,608 INFO L82 PathProgramCache]: Analyzing trace with hash -737785708, now seen corresponding path program 1 times [2018-11-18 14:30:46,608 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:30:46,608 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:30:46,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:46,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:30:46,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:30:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:30:46,622 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:46,622 INFO L82 PathProgramCache]: Analyzing trace with hash 444855640, now seen corresponding path program 1 times [2018-11-18 14:30:46,622 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:30:46,622 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:30:46,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:46,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:30:46,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:30:46,770 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 14:30:46,771 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:30:46,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:30:46,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:30:46,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:30:46,865 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 6 states. [2018-11-18 14:30:47,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:30:47,063 INFO L93 Difference]: Finished difference Result 186 states and 241 transitions. [2018-11-18 14:30:47,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:30:47,065 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 186 states and 241 transitions. [2018-11-18 14:30:47,069 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2018-11-18 14:30:47,075 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 186 states to 176 states and 231 transitions. [2018-11-18 14:30:47,076 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 176 [2018-11-18 14:30:47,076 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 176 [2018-11-18 14:30:47,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 176 states and 231 transitions. [2018-11-18 14:30:47,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:30:47,079 INFO L705 BuchiCegarLoop]: Abstraction has 176 states and 231 transitions. [2018-11-18 14:30:47,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states and 231 transitions. [2018-11-18 14:30:47,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2018-11-18 14:30:47,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-11-18 14:30:47,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 231 transitions. [2018-11-18 14:30:47,118 INFO L728 BuchiCegarLoop]: Abstraction has 176 states and 231 transitions. [2018-11-18 14:30:47,118 INFO L608 BuchiCegarLoop]: Abstraction has 176 states and 231 transitions. [2018-11-18 14:30:47,118 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 14:30:47,118 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 176 states and 231 transitions. [2018-11-18 14:30:47,123 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2018-11-18 14:30:47,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:30:47,123 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:30:47,124 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:30:47,124 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 14:30:47,124 INFO L794 eck$LassoCheckResult]: Stem: 561#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(13);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string40.base,#t~string40.offset := 44];#memory_int := #memory_int[#t~string40.base,1 + #t~string40.offset := 77];#memory_int := #memory_int[#t~string40.base,2 + #t~string40.offset := 101];#memory_int := #memory_int[#t~string40.base,3 + #t~string40.offset := 116];#memory_int := #memory_int[#t~string40.base,4 + #t~string40.offset := 104];#memory_int := #memory_int[#t~string40.base,5 + #t~string40.offset := 58];#memory_int := #memory_int[#t~string40.base,6 + #t~string40.offset := 0];call #t~string42.base, #t~string42.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 67];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 82];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 73];#memory_int := #memory_int[#t~string42.base,3 + #t~string42.offset := 84];#memory_int := #memory_int[#t~string42.base,4 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 79];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 75];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 41];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(13);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 110];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 79];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 44];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 80];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 117];#memory_int := #memory_int[#t~string60.base,3 + #t~string60.offset := 109];#memory_int := #memory_int[#t~string60.base,4 + #t~string60.offset := 112];#memory_int := #memory_int[#t~string60.base,5 + #t~string60.offset := 58];#memory_int := #memory_int[#t~string60.base,6 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 110];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 79];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 41];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 32];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 10];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 403#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret47, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 404#L678 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 516#L671 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 523#L686 main_#t~ret47 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret47;havoc main_#t~ret47; 524#L642 assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 477#L615 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 478#L927-3 [2018-11-18 14:30:47,124 INFO L796 eck$LassoCheckResult]: Loop: 478#L927-3 assume true; 563#L927-1 assume !false; 546#L928 assume test_~splverifierCounter~0 < 4; 448#L929 test_~tmp~10 := test_#t~nondet71;havoc test_#t~nondet71; 449#L937 assume !(0 != test_~tmp~10); 468#L937-2 test_~tmp___0~3 := test_#t~nondet72;havoc test_#t~nondet72; 479#L947 assume !(0 != test_~tmp___0~3); 551#L947-2 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 556#L957 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 568#L913 assume { :end_inline_startSystem } true; 393#L965-2 assume { :begin_inline_timeShift } true; 394#L701 assume !(0 != ~pumpRunning~0); 554#L701-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 566#L759 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 517#L733-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 476#L725-3 assume { :end_inline_processEnvironment__wrappee__base } true; 470#L733-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 396#L759-1 assume { :end_inline_processEnvironment } true; 525#L708-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret35, __utac_acc__Specification4_spec__1_#t~ret36, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 526#L526 __utac_acc__Specification4_spec__1_#t~ret35 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret35;havoc __utac_acc__Specification4_spec__1_#t~ret35; 446#L417 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 447#L417-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 454#L718 assume { :end_inline_timeShift } true; 478#L927-3 [2018-11-18 14:30:47,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:47,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 14:30:47,125 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:30:47,125 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:30:47,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:47,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:30:47,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:30:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:30:47,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:47,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1755815229, now seen corresponding path program 1 times [2018-11-18 14:30:47,170 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:30:47,170 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:30:47,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:47,171 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:30:47,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:30:47,237 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 14:30:47,237 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:30:47,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:30:47,237 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:30:47,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:30:47,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:30:47,238 INFO L87 Difference]: Start difference. First operand 176 states and 231 transitions. cyclomatic complexity: 57 Second operand 3 states. [2018-11-18 14:30:47,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:30:47,562 INFO L93 Difference]: Finished difference Result 240 states and 302 transitions. [2018-11-18 14:30:47,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:30:47,563 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 240 states and 302 transitions. [2018-11-18 14:30:47,565 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 168 [2018-11-18 14:30:47,567 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 240 states to 240 states and 302 transitions. [2018-11-18 14:30:47,567 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 240 [2018-11-18 14:30:47,567 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 240 [2018-11-18 14:30:47,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 240 states and 302 transitions. [2018-11-18 14:30:47,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:30:47,569 INFO L705 BuchiCegarLoop]: Abstraction has 240 states and 302 transitions. [2018-11-18 14:30:47,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states and 302 transitions. [2018-11-18 14:30:47,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2018-11-18 14:30:47,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2018-11-18 14:30:47,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 302 transitions. [2018-11-18 14:30:47,578 INFO L728 BuchiCegarLoop]: Abstraction has 240 states and 302 transitions. [2018-11-18 14:30:47,579 INFO L608 BuchiCegarLoop]: Abstraction has 240 states and 302 transitions. [2018-11-18 14:30:47,579 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 14:30:47,579 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 240 states and 302 transitions. [2018-11-18 14:30:47,580 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 168 [2018-11-18 14:30:47,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:30:47,581 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:30:47,581 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:30:47,581 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:30:47,582 INFO L794 eck$LassoCheckResult]: Stem: 993#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(13);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string40.base,#t~string40.offset := 44];#memory_int := #memory_int[#t~string40.base,1 + #t~string40.offset := 77];#memory_int := #memory_int[#t~string40.base,2 + #t~string40.offset := 101];#memory_int := #memory_int[#t~string40.base,3 + #t~string40.offset := 116];#memory_int := #memory_int[#t~string40.base,4 + #t~string40.offset := 104];#memory_int := #memory_int[#t~string40.base,5 + #t~string40.offset := 58];#memory_int := #memory_int[#t~string40.base,6 + #t~string40.offset := 0];call #t~string42.base, #t~string42.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 67];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 82];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 73];#memory_int := #memory_int[#t~string42.base,3 + #t~string42.offset := 84];#memory_int := #memory_int[#t~string42.base,4 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 79];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 75];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 41];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(13);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 110];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 79];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 44];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 80];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 117];#memory_int := #memory_int[#t~string60.base,3 + #t~string60.offset := 109];#memory_int := #memory_int[#t~string60.base,4 + #t~string60.offset := 112];#memory_int := #memory_int[#t~string60.base,5 + #t~string60.offset := 58];#memory_int := #memory_int[#t~string60.base,6 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 110];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 79];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 41];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 32];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 10];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 823#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret47, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 824#L678 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 942#L671 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 951#L686 main_#t~ret47 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret47;havoc main_#t~ret47; 952#L642 assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 898#L615 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 899#L927-3 [2018-11-18 14:30:47,582 INFO L796 eck$LassoCheckResult]: Loop: 899#L927-3 assume true; 996#L927-1 assume !false; 978#L928 assume test_~splverifierCounter~0 < 4; 867#L929 test_~tmp~10 := test_#t~nondet71;havoc test_#t~nondet71; 868#L937 assume !(0 != test_~tmp~10); 887#L937-2 test_~tmp___0~3 := test_#t~nondet72;havoc test_#t~nondet72; 900#L947 assume !(0 != test_~tmp___0~3); 983#L947-2 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 987#L957 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet74;havoc test_#t~nondet74; 849#L965 assume 0 != test_~tmp___1~0; 815#L965-2 assume { :begin_inline_timeShift } true; 816#L701 assume !(0 != ~pumpRunning~0); 1006#L701-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1000#L759 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 943#L733-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret69, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 944#L534-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 992#L539-1 isHighWaterLevel_#t~ret69 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret69;havoc isHighWaterLevel_#t~ret69; 923#L879-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 924#L879-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 825#L885-1 processEnvironment__wrappee__highWaterSensor_#t~ret49 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret49;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49; 826#L737-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 891#L725-2 assume { :end_inline_processEnvironment__wrappee__base } true; 892#L733-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 818#L759-1 assume { :end_inline_processEnvironment } true; 1018#L708-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret35, __utac_acc__Specification4_spec__1_#t~ret36, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 1017#L526 __utac_acc__Specification4_spec__1_#t~ret35 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret35;havoc __utac_acc__Specification4_spec__1_#t~ret35; 1015#L417 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 875#L417-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 876#L718 assume { :end_inline_timeShift } true; 899#L927-3 [2018-11-18 14:30:47,582 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:47,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 14:30:47,583 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:30:47,583 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:30:47,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:47,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:30:47,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:30:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:30:47,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:47,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1233012806, now seen corresponding path program 1 times [2018-11-18 14:30:47,620 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:30:47,620 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:30:47,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:47,621 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:30:47,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:30:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:30:47,631 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:47,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1358747530, now seen corresponding path program 1 times [2018-11-18 14:30:47,632 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:30:47,632 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:30:47,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:47,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:30:47,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:30:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:30:47,809 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2018-11-18 14:31:14,850 WARN L180 SmtUtils]: Spent 27.00 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 14:31:36,339 WARN L180 SmtUtils]: Spent 21.49 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 14:31:36,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 02:31:36 BoogieIcfgContainer [2018-11-18 14:31:36,402 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 14:31:36,402 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:31:36,402 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:31:36,402 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:31:36,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:30:46" (3/4) ... [2018-11-18 14:31:36,404 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 14:31:36,450 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_276f802d-948d-436d-ba4c-b3ff601bb26e/bin-2019/uautomizer/witness.graphml [2018-11-18 14:31:36,450 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:31:36,451 INFO L168 Benchmark]: Toolchain (without parser) took 51268.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.5 MB). Free memory was 957.0 MB in the beginning and 967.8 MB in the end (delta: -10.8 MB). Peak memory consumption was 161.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:31:36,451 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:31:36,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 957.0 MB in the beginning and 1.1 GB in the end (delta: -176.0 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-11-18 14:31:36,452 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:31:36,452 INFO L168 Benchmark]: Boogie Preprocessor took 34.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:31:36,452 INFO L168 Benchmark]: RCFGBuilder took 701.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.8 MB). Peak memory consumption was 79.8 MB. Max. memory is 11.5 GB. [2018-11-18 14:31:36,453 INFO L168 Benchmark]: BuchiAutomizer took 50072.35 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 28.3 MB). Free memory was 1.0 GB in the beginning and 975.0 MB in the end (delta: 72.8 MB). Peak memory consumption was 179.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:31:36,453 INFO L168 Benchmark]: Witness Printer took 48.41 ms. Allocated memory is still 1.2 GB. Free memory was 975.0 MB in the beginning and 967.8 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:31:36,455 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 355.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 957.0 MB in the beginning and 1.1 GB in the end (delta: -176.0 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 701.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.8 MB). Peak memory consumption was 79.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 50072.35 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 28.3 MB). Free memory was 1.0 GB in the beginning and 975.0 MB in the end (delta: 72.8 MB). Peak memory consumption was 179.9 MB. Max. memory is 11.5 GB. * Witness Printer took 48.41 ms. Allocated memory is still 1.2 GB. Free memory was 975.0 MB in the beginning and 967.8 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 240 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 50.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 49.3s. Construction of modules took 0.4s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 240 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 452 SDtfs, 874 SDslu, 108 SDs, 0 SdLazy, 38 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 927]: 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52dc55dd=0, NULL=0, "Off"=0, "On"=0, ")"=0, ")"=33, ",Meth:"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d0f522f=0, "OK"=0, ",Pump:"=0, retValue_acc=0, "Env(Water:%i"=36, "CRIT"=0, "Off"=37, "On"=29, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d81e011=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b97efa5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bd7131d=0, "\n"=0, ") "=0, "\n"=8, tmp___1=153, "__utac__get_this_argtype"=19, "__utac__get_this_arg"=23, "__utac__get_this_arg"=11, tmp___0=0, "libacc.c"=20, cleanupTimeShifts=4, "libacc.c"=16, "CRIT"=35, tmp=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=0, NULL=0, systemActive=1, waterLevel=1, \result=1, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, "Env(Water:%i"=0, "Off"=27, \result=0, "OK"=34, "Pump(System:"=0, ",Pump:"=28, "Off"=0, "On"=0, \result=1, "i > 0 && i <= this->argsCount"=15, head=0, pumpRunning=0, \result=0, retValue_acc=1, "i > 0 && i <= this->argsCount"=12, tmp=1, "libacc.c"=0, ") "=38, "i > 0 && i <= this->argsCount"=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34ab8b7f=153, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55400592=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3eca87e7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4485c6b6=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4337343c=0, "libacc.c"=24, retValue_acc=0, tmp=1, tmp=0, tmp___0=0, tmp=1, tmp___2=0, retValue_acc=1, "i > 0 && i <= this->argsCount"=18, splverifierCounter=0, head=0, "libacc.c"=0, "libacc.c"=14, tmp=0, "i > 0 && i <= this->argsCount"=22, "__utac__get_this_arg"=0, "__utac__get_this_argtype"=17, "libacc.c"=0, "libacc.c"=0, ",Meth:"=26, "On"=39, "Pump(System:"=31} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 927]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L337] FCALL "i > 0 && i <= this->argsCount" [L337] FCALL "libacc.c" [L338] FCALL "__utac__get_this_arg" [L344] FCALL "i > 0 && i <= this->argsCount" [L344] FCALL "libacc.c" [L345] FCALL "__utac__get_this_arg" [L383] FCALL "i > 0 && i <= this->argsCount" [L383] FCALL "libacc.c" [L384] FCALL "__utac__get_this_argtype" [L390] FCALL "i > 0 && i <= this->argsCount" [L390] FCALL "libacc.c" [L391] FCALL "__utac__get_this_argtype" [L503] FCALL "Env(Water:%i" [L504] FCALL ",Meth:" [L508] FCALL "CRIT" [L512] FCALL "OK" [L516] FCALL ")" [L839] FCALL "Pump(System:" [L843] FCALL "On" [L847] FCALL "Off" [L851] FCALL ",Pump:" [L855] FCALL "On" [L859] FCALL "Off" [L863] FCALL ") " [L865] FCALL "\n" [L451] int waterLevel = 1; [L452] int methaneLevelCritical = 0; [L554] int cleanupTimeShifts = 4; [L694] int pumpRunning = 0; [L695] int systemActive = 1; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L633] int retValue_acc ; [L634] int tmp ; [L638] FCALL select_helpers() [L639] FCALL select_features() [L640] CALL, EXPR valid_product() [L682] int retValue_acc ; [L685] retValue_acc = 1 [L686] RET return (retValue_acc); [L640] EXPR valid_product() [L640] tmp = valid_product() [L642] COND TRUE \read(tmp) [L644] FCALL setup() [L645] CALL runTest() [L624] CALL test() [L918] int splverifierCounter ; [L919] int tmp ; [L920] int tmp___0 ; [L921] int tmp___1 ; [L922] int tmp___2 ; [L925] splverifierCounter = 0 Loop: [L927] COND TRUE 1 [L929] COND TRUE splverifierCounter < 4 [L935] tmp = __VERIFIER_nondet_int() [L937] COND FALSE !(\read(tmp)) [L945] tmp___0 = __VERIFIER_nondet_int() [L947] COND FALSE !(\read(tmp___0)) [L955] tmp___2 = __VERIFIER_nondet_int() [L957] COND FALSE !(\read(tmp___2)) [L963] tmp___1 = __VERIFIER_nondet_int() [L965] COND TRUE \read(tmp___1) [L972] CALL timeShift() [L701] COND FALSE !(\read(pumpRunning)) [L708] COND TRUE \read(systemActive) [L710] CALL processEnvironment() [L756] int tmp ; [L759] COND FALSE !(\read(pumpRunning)) [L774] CALL processEnvironment__wrappee__highWaterSensor() [L730] int tmp ; [L733] COND TRUE ! pumpRunning [L735] CALL, EXPR isHighWaterLevel() [L871] int retValue_acc ; [L872] int tmp ; [L873] int tmp___0 ; [L877] CALL, EXPR isHighWaterSensorDry() [L531] int retValue_acc ; [L534] COND TRUE waterLevel < 2 [L535] retValue_acc = 1 [L536] RET return (retValue_acc); [L877] EXPR isHighWaterSensorDry() [L877] tmp = isHighWaterSensorDry() [L879] COND TRUE \read(tmp) [L880] tmp___0 = 0 [L884] retValue_acc = tmp___0 [L885] RET return (retValue_acc); [L735] EXPR isHighWaterLevel() [L735] tmp = isHighWaterLevel() [L737] COND FALSE !(\read(tmp)) [L743] RET, FCALL processEnvironment__wrappee__base() [L774] RET processEnvironment__wrappee__highWaterSensor() [L710] processEnvironment() [L716] CALL __utac_acc__Specification4_spec__1() [L410] int tmp ; [L411] int tmp___0 ; [L415] CALL, EXPR getWaterLevel() [L522] int retValue_acc ; [L525] retValue_acc = waterLevel [L526] RET return (retValue_acc); [L415] EXPR getWaterLevel() [L415] tmp = getWaterLevel() [L417] COND FALSE, RET !(tmp == 0) [L716] RET __utac_acc__Specification4_spec__1() [L972] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...