./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec2_product56_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/product-lines/minepump_spec2_product56_true-unreach-call_false-termination.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 730b837dafcd2995b5acc94906fc5437a0c170a6 .................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:56:56,624 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:56:56,625 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:56:56,637 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:56:56,638 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:56:56,639 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:56:56,640 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:56:56,642 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:56:56,644 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:56:56,644 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:56:56,645 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:56:56,645 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:56:56,646 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:56:56,647 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:56:56,648 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:56:56,649 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:56:56,650 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:56:56,652 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:56:56,654 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:56:56,656 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:56:56,657 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:56:56,658 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:56:56,661 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:56:56,661 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:56:56,661 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:56:56,662 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:56:56,668 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:56:56,669 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:56:56,670 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:56:56,671 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:56:56,671 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:56:56,672 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:56:56,672 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:56:56,672 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:56:56,673 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:56:56,674 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:56:56,674 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 23:56:56,705 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:56:56,706 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:56:56,708 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:56:56,708 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:56:56,708 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:56:56,708 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:56:56,709 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:56:56,710 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:56:56,710 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:56:56,711 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:56:56,711 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:56:56,711 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:56:56,711 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:56:56,711 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:56:56,711 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:56:56,712 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:56:56,713 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:56:56,713 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:56:56,713 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:56:56,713 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:56:56,713 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:56:56,713 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:56:56,714 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:56:56,714 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:56:56,714 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:56:56,714 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:56:56,714 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:56:56,714 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:56:56,717 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:56:56,717 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:56:56,718 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:56:56,719 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:56:56,719 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 730b837dafcd2995b5acc94906fc5437a0c170a6 [2018-11-28 23:56:56,762 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:56:56,780 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:56:56,784 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:56:56,786 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:56:56,786 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:56:56,787 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec2_product56_true-unreach-call_false-termination.cil.c [2018-11-28 23:56:56,848 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ca164443/74752e98f77d465a9c97009f686963f1/FLAG807a53436 [2018-11-28 23:56:57,383 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:56:57,384 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec2_product56_true-unreach-call_false-termination.cil.c [2018-11-28 23:56:57,407 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ca164443/74752e98f77d465a9c97009f686963f1/FLAG807a53436 [2018-11-28 23:56:57,661 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ca164443/74752e98f77d465a9c97009f686963f1 [2018-11-28 23:56:57,665 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:56:57,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:56:57,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:56:57,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:56:57,675 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:56:57,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:56:57" (1/1) ... [2018-11-28 23:56:57,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71aa32a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:57, skipping insertion in model container [2018-11-28 23:56:57,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:56:57" (1/1) ... [2018-11-28 23:56:57,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:56:57,741 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:56:58,187 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:56:58,215 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:56:58,324 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:56:58,455 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:56:58,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:58 WrapperNode [2018-11-28 23:56:58,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:56:58,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:56:58,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:56:58,456 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:56:58,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:58" (1/1) ... [2018-11-28 23:56:58,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:58" (1/1) ... [2018-11-28 23:56:58,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:56:58,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:56:58,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:56:58,550 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:56:58,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:58" (1/1) ... [2018-11-28 23:56:58,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:58" (1/1) ... [2018-11-28 23:56:58,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:58" (1/1) ... [2018-11-28 23:56:58,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:58" (1/1) ... [2018-11-28 23:56:58,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:58" (1/1) ... [2018-11-28 23:56:58,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:58" (1/1) ... [2018-11-28 23:56:58,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:58" (1/1) ... [2018-11-28 23:56:58,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:56:58,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:56:58,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:56:58,613 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:56:58,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:56:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 23:56:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 23:56:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:56:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:57:00,470 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:57:00,471 INFO L280 CfgBuilder]: Removed 284 assue(true) statements. [2018-11-28 23:57:00,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:57:00 BoogieIcfgContainer [2018-11-28 23:57:00,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:57:00,472 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:57:00,472 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:57:00,476 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:57:00,477 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:57:00,477 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:56:57" (1/3) ... [2018-11-28 23:57:00,479 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@175e3333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:57:00, skipping insertion in model container [2018-11-28 23:57:00,479 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:57:00,479 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:58" (2/3) ... [2018-11-28 23:57:00,480 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@175e3333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:57:00, skipping insertion in model container [2018-11-28 23:57:00,480 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:57:00,480 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:57:00" (3/3) ... [2018-11-28 23:57:00,483 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product56_true-unreach-call_false-termination.cil.c [2018-11-28 23:57:00,557 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:57:00,557 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:57:00,558 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:57:00,558 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:57:00,558 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:57:00,558 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:57:00,558 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:57:00,558 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:57:00,559 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:57:00,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 192 states. [2018-11-28 23:57:00,619 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2018-11-28 23:57:00,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:57:00,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:57:00,631 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:57:00,631 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:57:00,632 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:57:00,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 192 states. [2018-11-28 23:57:00,650 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2018-11-28 23:57:00,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:57:00,651 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:57:00,653 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:57:00,653 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:57:00,659 INFO L794 eck$LassoCheckResult]: Stem: 130#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string36.base, #t~string36.offset := #Ultimate.alloc(13);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~cleanupTimeShifts~0 := 4; 8#L-1true havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 191#L913true havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 3#L921true main_#t~ret74 := valid_product_#res;main_~tmp~10 := main_#t~ret74;havoc main_#t~ret74; 12#L1009true assume 0 != main_~tmp~10; 148#L985true ~methAndRunningLastTime~0 := 0; 5#L533true havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 6#L544-1true [2018-11-28 23:57:00,660 INFO L796 eck$LassoCheckResult]: Loop: 6#L544-1true assume !false; 9#L830true assume test_~splverifierCounter~0 < 4; 171#L831true test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 174#L839true assume !(0 != test_~tmp~9); 175#L839-1true test_~tmp___0~3 := test_#t~nondet70;havoc test_#t~nondet70; 30#L849true assume !(0 != test_~tmp___0~3); 33#L849-1true test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 103#L859true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 114#L867-1true assume !(0 != ~pumpRunning~0); 40#L579true assume !(0 != ~systemActive~0); 170#L586true havoc __utac_acc__Specification2_spec__2_#t~ret45, __utac_acc__Specification2_spec__2_#t~ret46, __utac_acc__Specification2_spec__2_~tmp~3, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~3;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 51#L466-1true __utac_acc__Specification2_spec__2_#t~ret45 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~3 := __utac_acc__Specification2_spec__2_#t~ret45;havoc __utac_acc__Specification2_spec__2_#t~ret45; 4#L544true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3);~methAndRunningLastTime~0 := 0; 6#L544-1true [2018-11-28 23:57:00,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:57:00,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2018-11-28 23:57:00,676 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:57:00,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:57:00,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:57:00,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:57:00,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:57:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:57:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:57:00,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:57:00,968 INFO L82 PathProgramCache]: Analyzing trace with hash 17344788, now seen corresponding path program 1 times [2018-11-28 23:57:00,968 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:57:00,968 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:57:00,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:57:00,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:57:00,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:57:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:57:01,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:57:01,046 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:57:01,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:57:01,050 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:57:01,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:57:01,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:57:01,067 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 3 states. [2018-11-28 23:57:01,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:57:01,287 INFO L93 Difference]: Finished difference Result 377 states and 565 transitions. [2018-11-28 23:57:01,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:57:01,290 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 377 states and 565 transitions. [2018-11-28 23:57:01,301 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 246 [2018-11-28 23:57:01,312 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 377 states to 363 states and 550 transitions. [2018-11-28 23:57:01,313 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 363 [2018-11-28 23:57:01,315 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 363 [2018-11-28 23:57:01,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 363 states and 550 transitions. [2018-11-28 23:57:01,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:57:01,324 INFO L705 BuchiCegarLoop]: Abstraction has 363 states and 550 transitions. [2018-11-28 23:57:01,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states and 550 transitions. [2018-11-28 23:57:01,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 361. [2018-11-28 23:57:01,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2018-11-28 23:57:01,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 547 transitions. [2018-11-28 23:57:01,417 INFO L728 BuchiCegarLoop]: Abstraction has 361 states and 547 transitions. [2018-11-28 23:57:01,417 INFO L608 BuchiCegarLoop]: Abstraction has 361 states and 547 transitions. [2018-11-28 23:57:01,418 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:57:01,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 361 states and 547 transitions. [2018-11-28 23:57:01,424 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 244 [2018-11-28 23:57:01,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:57:01,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:57:01,425 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:57:01,428 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:57:01,428 INFO L794 eck$LassoCheckResult]: Stem: 752#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string36.base, #t~string36.offset := #Ultimate.alloc(13);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~cleanupTimeShifts~0 := 4; 588#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 589#L913 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 578#L921 main_#t~ret74 := valid_product_#res;main_~tmp~10 := main_#t~ret74;havoc main_#t~ret74; 579#L1009 assume 0 != main_~tmp~10; 596#L985 ~methAndRunningLastTime~0 := 0; 583#L533 havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 584#L544-1 [2018-11-28 23:57:01,429 INFO L796 eck$LassoCheckResult]: Loop: 584#L544-1 assume !false; 797#L830 assume test_~splverifierCounter~0 < 4; 778#L831 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 779#L839 assume !(0 != test_~tmp~9); 782#L839-1 test_~tmp___0~3 := test_#t~nondet70;havoc test_#t~nondet70; 626#L849 assume !(0 != test_~tmp___0~3); 598#L849-1 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 631#L859 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 729#L867-1 assume !(0 != ~pumpRunning~0); 641#L579 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 642#L663 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret48, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 623#L637-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret47, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 624#L611-3 assume !(0 == ~pumpRunning~0); 600#L586 havoc __utac_acc__Specification2_spec__2_#t~ret45, __utac_acc__Specification2_spec__2_#t~ret46, __utac_acc__Specification2_spec__2_~tmp~3, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~3;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 803#L466-1 __utac_acc__Specification2_spec__2_#t~ret45 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~3 := __utac_acc__Specification2_spec__2_#t~ret45;havoc __utac_acc__Specification2_spec__2_#t~ret45; 799#L544 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3);~methAndRunningLastTime~0 := 0; 584#L544-1 [2018-11-28 23:57:01,429 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:57:01,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2018-11-28 23:57:01,430 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:57:01,430 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:57:01,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:57:01,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:57:01,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:57:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:57:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:57:01,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:57:01,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1068871812, now seen corresponding path program 1 times [2018-11-28 23:57:01,573 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:57:01,575 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:57:01,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:57:01,576 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:57:01,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:57:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:57:01,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:57:01,640 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:57:01,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:57:01,641 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:57:01,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:57:01,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:57:01,642 INFO L87 Difference]: Start difference. First operand 361 states and 547 transitions. cyclomatic complexity: 189 Second operand 3 states. [2018-11-28 23:57:02,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:57:02,316 INFO L93 Difference]: Finished difference Result 378 states and 539 transitions. [2018-11-28 23:57:02,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:57:02,318 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 378 states and 539 transitions. [2018-11-28 23:57:02,323 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 263 [2018-11-28 23:57:02,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 378 states to 378 states and 539 transitions. [2018-11-28 23:57:02,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 378 [2018-11-28 23:57:02,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 378 [2018-11-28 23:57:02,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 378 states and 539 transitions. [2018-11-28 23:57:02,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:57:02,332 INFO L705 BuchiCegarLoop]: Abstraction has 378 states and 539 transitions. [2018-11-28 23:57:02,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states and 539 transitions. [2018-11-28 23:57:02,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2018-11-28 23:57:02,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2018-11-28 23:57:02,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 539 transitions. [2018-11-28 23:57:02,350 INFO L728 BuchiCegarLoop]: Abstraction has 378 states and 539 transitions. [2018-11-28 23:57:02,351 INFO L608 BuchiCegarLoop]: Abstraction has 378 states and 539 transitions. [2018-11-28 23:57:02,351 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:57:02,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 378 states and 539 transitions. [2018-11-28 23:57:02,355 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 263 [2018-11-28 23:57:02,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:57:02,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:57:02,357 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:57:02,357 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:57:02,357 INFO L794 eck$LassoCheckResult]: Stem: 1463#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string36.base, #t~string36.offset := #Ultimate.alloc(13);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~cleanupTimeShifts~0 := 4; 1333#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 1334#L913 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 1323#L921 main_#t~ret74 := valid_product_#res;main_~tmp~10 := main_#t~ret74;havoc main_#t~ret74; 1324#L1009 assume 0 != main_~tmp~10; 1341#L985 ~methAndRunningLastTime~0 := 0; 1328#L533 havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1329#L544-1 [2018-11-28 23:57:02,357 INFO L796 eck$LassoCheckResult]: Loop: 1329#L544-1 assume !false; 1330#L830 assume test_~splverifierCounter~0 < 4; 1335#L831 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 1486#L839 assume !(0 != test_~tmp~9); 1408#L839-1 test_~tmp___0~3 := test_#t~nondet70;havoc test_#t~nondet70; 1370#L849 assume !(0 != test_~tmp___0~3); 1343#L849-1 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 1375#L859 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1444#L867-1 assume !(0 != ~pumpRunning~0); 1382#L579 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1383#L663 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret48, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 1368#L637-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret47, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 1369#L611-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret67, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 1458#L506-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 1478#L511-3 isHighWaterLevel_#t~ret67 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret67;havoc isHighWaterLevel_#t~ret67; 1435#L765-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1436#L765-11 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 1429#L771-3 processEnvironment__wrappee__highWaterSensor_#t~ret47 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret47;havoc processEnvironment__wrappee__highWaterSensor_#t~ret47; 1344#L615-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 1346#L586 havoc __utac_acc__Specification2_spec__2_#t~ret45, __utac_acc__Specification2_spec__2_#t~ret46, __utac_acc__Specification2_spec__2_~tmp~3, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~3;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 1506#L466-1 __utac_acc__Specification2_spec__2_#t~ret45 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~3 := __utac_acc__Specification2_spec__2_#t~ret45;havoc __utac_acc__Specification2_spec__2_#t~ret45; 1507#L544 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3);~methAndRunningLastTime~0 := 0; 1329#L544-1 [2018-11-28 23:57:02,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:57:02,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2018-11-28 23:57:02,362 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:57:02,362 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:57:02,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:57:02,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:57:02,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:57:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:57:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:57:02,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:57:02,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1737135944, now seen corresponding path program 1 times [2018-11-28 23:57:02,429 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:57:02,429 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:57:02,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:57:02,433 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:57:02,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:57:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:57:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:57:02,451 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:57:02,451 INFO L82 PathProgramCache]: Analyzing trace with hash 869951502, now seen corresponding path program 1 times [2018-11-28 23:57:02,451 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:57:02,451 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:57:02,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:57:02,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:57:02,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:57:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:57:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:57:03,542 WARN L180 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2018-11-28 23:57:03,952 WARN L180 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2018-11-28 23:57:09,858 WARN L180 SmtUtils]: Spent 5.88 s on a formula simplification. DAG size of input: 429 DAG size of output: 427 [2018-11-28 23:57:12,426 WARN L180 SmtUtils]: Spent 2.56 s on a formula simplification that was a NOOP. DAG size: 425 [2018-11-28 23:57:12,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:57:12 BoogieIcfgContainer [2018-11-28 23:57:12,482 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:57:12,483 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:57:12,483 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:57:12,483 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:57:12,485 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:57:00" (3/4) ... [2018-11-28 23:57:12,488 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 23:57:12,567 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:57:12,567 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:57:12,568 INFO L168 Benchmark]: Toolchain (without parser) took 14902.10 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 307.8 MB). Free memory was 954.0 MB in the beginning and 945.6 MB in the end (delta: 8.5 MB). Peak memory consumption was 316.2 MB. Max. memory is 11.5 GB. [2018-11-28 23:57:12,570 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:57:12,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 786.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 954.0 MB in the beginning and 1.1 GB in the end (delta: -163.2 MB). Peak memory consumption was 44.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:57:12,571 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:57:12,571 INFO L168 Benchmark]: Boogie Preprocessor took 62.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:57:12,573 INFO L168 Benchmark]: RCFGBuilder took 1858.91 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: 73.5 MB). Peak memory consumption was 73.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:57:12,574 INFO L168 Benchmark]: BuchiAutomizer took 12009.96 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 184.0 MB). Free memory was 1.0 GB in the beginning and 955.1 MB in the end (delta: 75.0 MB). Peak memory consumption was 329.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:57:12,574 INFO L168 Benchmark]: Witness Printer took 84.76 ms. Allocated memory is still 1.3 GB. Free memory was 955.1 MB in the beginning and 945.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2018-11-28 23:57:12,578 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 786.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 954.0 MB in the beginning and 1.1 GB in the end (delta: -163.2 MB). Peak memory consumption was 44.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 93.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1858.91 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: 73.5 MB). Peak memory consumption was 73.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 12009.96 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 184.0 MB). Free memory was 1.0 GB in the beginning and 955.1 MB in the end (delta: 75.0 MB). Peak memory consumption was 329.5 MB. Max. memory is 11.5 GB. * Witness Printer took 84.76 ms. Allocated memory is still 1.3 GB. Free memory was 955.1 MB in the beginning and 945.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 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 3 locations. The remainder module has 378 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 11.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 10.6s. Construction of modules took 0.7s. 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 378 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 492 SDtfs, 426 SDslu, 356 SDs, 0 SdLazy, 53 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 829]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30edaea7=0, NULL=0, NULL=26, NULL=0, retValue_acc=1, NULL=15, NULL=22, methaneLevelCritical=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78439104=0, NULL=0, retValue_acc=0, tmp___1=0, tmp=0, NULL=33, tmp=0, NULL=11, NULL=24, NULL=12, NULL=36, tmp=0, cleanupTimeShifts=4, NULL=37, NULL=23, tmp=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d136f14=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47e7f10a=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, NULL=34, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5aed2b34=0, retValue_acc=0, \result=0, NULL=29, NULL=0, NULL=0, NULL=28, NULL=0, NULL=0, \result=1, retValue_acc=0, NULL=27, head=0, pumpRunning=0, \result=0, NULL=38, retValue_acc=1, NULL=31, NULL=0, NULL=0, NULL=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25924385=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f174585=0, NULL=0, \result=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63d3ffb6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@164e8b16=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5abbf559=0, NULL=8, tmp=1, tmp___0=0, tmp___2=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6846b332=0, NULL=14, splverifierCounter=0, methAndRunningLastTime=0, \result=0, head=0, NULL=0, NULL=39, tmp=0, NULL=19, NULL=0, NULL=35, NULL=0, NULL=0, NULL=16, NULL=17, NULL=18, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L527] int methAndRunningLastTime ; [L572] int pumpRunning = 0; [L573] int systemActive = 1; [L926] int cleanupTimeShifts = 4; [L1000] int retValue_acc ; [L1001] int tmp ; [L917] int retValue_acc ; [L920] retValue_acc = 1 [L921] return (retValue_acc); [L1007] tmp = valid_product() [L1009] COND TRUE \read(tmp) [L532] methAndRunningLastTime = 0 [L820] int splverifierCounter ; [L821] int tmp ; [L822] int tmp___0 ; [L823] int tmp___1 ; [L824] int tmp___2 ; [L827] splverifierCounter = 0 Loop: [L829] COND TRUE 1 [L831] COND TRUE splverifierCounter < 4 [L837] tmp = __VERIFIER_nondet_int() [L839] COND FALSE !(\read(tmp)) [L847] tmp___0 = __VERIFIER_nondet_int() [L849] COND FALSE !(\read(tmp___0)) [L857] tmp___2 = __VERIFIER_nondet_int() [L859] COND TRUE \read(tmp___2) [L813] systemActive = 1 [L579] COND FALSE !(\read(pumpRunning)) [L586] COND TRUE \read(systemActive) [L660] int tmp ; [L663] COND FALSE !(\read(pumpRunning)) [L634] int tmp ; [L637] COND FALSE !(\read(pumpRunning)) [L608] int tmp ; [L611] COND TRUE ! pumpRunning [L757] int retValue_acc ; [L758] int tmp ; [L759] int tmp___0 ; [L503] int retValue_acc ; [L506] COND TRUE waterLevel < 2 [L507] retValue_acc = 1 [L508] return (retValue_acc); [L763] tmp = isHighWaterSensorDry() [L765] COND TRUE \read(tmp) [L766] tmp___0 = 0 [L770] retValue_acc = tmp___0 [L771] return (retValue_acc); [L613] tmp = isHighWaterLevel() [L615] COND FALSE !(\read(tmp)) [L537] int tmp ; [L538] int tmp___0 ; [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L542] tmp = isMethaneLevelCritical() [L544] COND FALSE !(\read(tmp)) [L560] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...