./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec5_product54_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_spec5_product54_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 3f1bc34860a9b5a05b4a0969639c999f2a7389fb ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 [2018-11-29 00:01:33,746 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-29 00:01:33,748 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-29 00:01:33,760 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-29 00:01:33,761 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-29 00:01:33,762 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-29 00:01:33,763 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-29 00:01:33,773 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-29 00:01:33,775 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-29 00:01:33,776 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-29 00:01:33,777 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-29 00:01:33,777 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-29 00:01:33,778 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-29 00:01:33,779 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-29 00:01:33,780 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-29 00:01:33,781 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-29 00:01:33,782 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-29 00:01:33,784 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-29 00:01:33,787 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-29 00:01:33,788 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-29 00:01:33,790 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-29 00:01:33,791 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-29 00:01:33,794 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-29 00:01:33,795 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-29 00:01:33,795 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-29 00:01:33,796 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-29 00:01:33,798 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-29 00:01:33,799 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-29 00:01:33,799 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-29 00:01:33,801 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-29 00:01:33,801 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-29 00:01:33,802 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-29 00:01:33,802 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-29 00:01:33,803 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-29 00:01:33,804 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-29 00:01:33,804 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-29 00:01:33,805 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-29 00:01:33,823 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-29 00:01:33,823 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-29 00:01:33,825 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-29 00:01:33,825 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-29 00:01:33,825 INFO L133 SettingsManager]: * Use SBE=true [2018-11-29 00:01:33,825 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-29 00:01:33,825 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-29 00:01:33,826 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-29 00:01:33,826 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-29 00:01:33,827 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-29 00:01:33,827 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-29 00:01:33,827 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-29 00:01:33,827 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-29 00:01:33,827 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-29 00:01:33,828 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-29 00:01:33,828 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-29 00:01:33,829 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-29 00:01:33,829 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-29 00:01:33,829 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-29 00:01:33,829 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-29 00:01:33,829 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-29 00:01:33,830 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-29 00:01:33,830 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-29 00:01:33,830 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-29 00:01:33,830 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-29 00:01:33,830 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-29 00:01:33,832 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-29 00:01:33,832 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-29 00:01:33,832 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-29 00:01:33,832 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-29 00:01:33,833 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-29 00:01:33,834 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-29 00:01:33,834 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 -> 3f1bc34860a9b5a05b4a0969639c999f2a7389fb [2018-11-29 00:01:33,872 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-29 00:01:33,885 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-29 00:01:33,889 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-29 00:01:33,891 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-29 00:01:33,891 INFO L276 PluginConnector]: CDTParser initialized [2018-11-29 00:01:33,892 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec5_product54_true-unreach-call_false-termination.cil.c [2018-11-29 00:01:33,955 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d63e26e0/66a7935c750d4f0f92b04c4b476f71f4/FLAG0481380fc [2018-11-29 00:01:34,513 INFO L307 CDTParser]: Found 1 translation units. [2018-11-29 00:01:34,514 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec5_product54_true-unreach-call_false-termination.cil.c [2018-11-29 00:01:34,545 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d63e26e0/66a7935c750d4f0f92b04c4b476f71f4/FLAG0481380fc [2018-11-29 00:01:34,735 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d63e26e0/66a7935c750d4f0f92b04c4b476f71f4 [2018-11-29 00:01:34,738 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-29 00:01:34,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-29 00:01:34,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-29 00:01:34,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-29 00:01:34,745 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-29 00:01:34,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:01:34" (1/1) ... [2018-11-29 00:01:34,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18e45167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:34, skipping insertion in model container [2018-11-29 00:01:34,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:01:34" (1/1) ... [2018-11-29 00:01:34,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-29 00:01:34,816 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-29 00:01:35,263 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-29 00:01:35,291 INFO L191 MainTranslator]: Completed pre-run [2018-11-29 00:01:35,390 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-29 00:01:35,528 INFO L195 MainTranslator]: Completed translation [2018-11-29 00:01:35,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:35 WrapperNode [2018-11-29 00:01:35,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-29 00:01:35,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-29 00:01:35,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-29 00:01:35,531 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-29 00:01:35,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:35" (1/1) ... [2018-11-29 00:01:35,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:35" (1/1) ... [2018-11-29 00:01:35,663 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-29 00:01:35,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-29 00:01:35,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-29 00:01:35,664 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-29 00:01:35,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:35" (1/1) ... [2018-11-29 00:01:35,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:35" (1/1) ... [2018-11-29 00:01:35,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:35" (1/1) ... [2018-11-29 00:01:35,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:35" (1/1) ... [2018-11-29 00:01:35,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:35" (1/1) ... [2018-11-29 00:01:35,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:35" (1/1) ... [2018-11-29 00:01:35,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:35" (1/1) ... [2018-11-29 00:01:35,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-29 00:01:35,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-29 00:01:35,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-29 00:01:35,739 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-29 00:01:35,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:35" (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 [2018-11-29 00:01:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-29 00:01:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-29 00:01:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-29 00:01:35,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-29 00:01:37,511 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-29 00:01:37,512 INFO L280 CfgBuilder]: Removed 292 assue(true) statements. [2018-11-29 00:01:37,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:01:37 BoogieIcfgContainer [2018-11-29 00:01:37,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-29 00:01:37,513 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-29 00:01:37,513 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-29 00:01:37,518 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-29 00:01:37,519 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-29 00:01:37,519 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 12:01:34" (1/3) ... [2018-11-29 00:01:37,520 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48d04cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 12:01:37, skipping insertion in model container [2018-11-29 00:01:37,521 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-29 00:01:37,521 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:35" (2/3) ... [2018-11-29 00:01:37,521 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48d04cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 12:01:37, skipping insertion in model container [2018-11-29 00:01:37,521 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-29 00:01:37,522 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:01:37" (3/3) ... [2018-11-29 00:01:37,524 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product54_true-unreach-call_false-termination.cil.c [2018-11-29 00:01:37,588 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-29 00:01:37,589 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-29 00:01:37,589 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-29 00:01:37,589 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-29 00:01:37,589 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-29 00:01:37,589 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-29 00:01:37,590 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-29 00:01:37,590 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-29 00:01:37,590 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-29 00:01:37,613 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 195 states. [2018-11-29 00:01:37,652 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 127 [2018-11-29 00:01:37,653 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-29 00:01:37,653 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-29 00:01:37,662 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-29 00:01:37,662 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-29 00:01:37,662 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-29 00:01:37,663 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 195 states. [2018-11-29 00:01:37,679 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 127 [2018-11-29 00:01:37,680 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-29 00:01:37,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-29 00:01:37,682 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-29 00:01:37,682 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-29 00:01:37,689 INFO L794 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string19.base, #t~string19.offset := #Ultimate.alloc(13);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25); 6#L-1true havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~4, main_~tmp~1;havoc main_~retValue_acc~4;havoc main_~tmp~1; 135#L640true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 26#L648true main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 173#L300true assume 0 != main_~tmp~1; 174#L272true ~switchedOnBeforeTS~0 := 0; 96#L49true havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 17#L70-1true [2018-11-29 00:01:37,690 INFO L796 eck$LassoCheckResult]: Loop: 17#L70-1true assume !false; 160#L562true assume test_~splverifierCounter~0 < 4; 116#L563true test_~tmp~7 := test_#t~nondet36;havoc test_#t~nondet36; 31#L571true assume !(0 != test_~tmp~7); 34#L571-1true test_~tmp___0~3 := test_#t~nondet37;havoc test_#t~nondet37; 169#L581true assume !(0 != test_~tmp___0~3); 165#L581-1true test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 197#L591true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 5#L599-2true havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~6;havoc isPumpRunning_~retValue_acc~6;isPumpRunning_~retValue_acc~6 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~6; 123#L464true __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 19#L59true assume !(0 != ~pumpRunning~0); 180#L327true assume !(0 != ~systemActive~0); 41#L334true havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 67#L174true __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 21#L70true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 17#L70-1true [2018-11-29 00:01:37,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:01:37,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2018-11-29 00:01:37,703 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:01:37,704 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:01:37,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:37,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:01:37,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:37,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:38,036 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:01:38,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1016486541, now seen corresponding path program 1 times [2018-11-29 00:01:38,036 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:01:38,036 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:01:38,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:38,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:01:38,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-29 00:01:38,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-29 00:01:38,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-29 00:01:38,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-29 00:01:38,118 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-29 00:01:38,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-29 00:01:38,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-29 00:01:38,139 INFO L87 Difference]: Start difference. First operand 195 states. Second operand 3 states. [2018-11-29 00:01:38,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-29 00:01:38,238 INFO L93 Difference]: Finished difference Result 195 states and 287 transitions. [2018-11-29 00:01:38,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-29 00:01:38,241 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 287 transitions. [2018-11-29 00:01:38,247 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2018-11-29 00:01:38,255 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 188 states and 279 transitions. [2018-11-29 00:01:38,257 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 188 [2018-11-29 00:01:38,259 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 188 [2018-11-29 00:01:38,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 188 states and 279 transitions. [2018-11-29 00:01:38,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-29 00:01:38,262 INFO L705 BuchiCegarLoop]: Abstraction has 188 states and 279 transitions. [2018-11-29 00:01:38,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states and 279 transitions. [2018-11-29 00:01:38,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2018-11-29 00:01:38,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2018-11-29 00:01:38,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 279 transitions. [2018-11-29 00:01:38,310 INFO L728 BuchiCegarLoop]: Abstraction has 188 states and 279 transitions. [2018-11-29 00:01:38,310 INFO L608 BuchiCegarLoop]: Abstraction has 188 states and 279 transitions. [2018-11-29 00:01:38,310 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-29 00:01:38,310 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 188 states and 279 transitions. [2018-11-29 00:01:38,313 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2018-11-29 00:01:38,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-29 00:01:38,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-29 00:01:38,314 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-29 00:01:38,315 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-29 00:01:38,315 INFO L794 eck$LassoCheckResult]: Stem: 574#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string19.base, #t~string19.offset := #Ultimate.alloc(13);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25); 427#L-1 havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~4, main_~tmp~1;havoc main_~retValue_acc~4;havoc main_~tmp~1; 428#L640 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 497#L648 main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 510#L300 assume 0 != main_~tmp~1; 576#L272 ~switchedOnBeforeTS~0 := 0; 577#L49 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 475#L70-1 [2018-11-29 00:01:38,315 INFO L796 eck$LassoCheckResult]: Loop: 475#L70-1 assume !false; 476#L562 assume test_~splverifierCounter~0 < 4; 435#L563 test_~tmp~7 := test_#t~nondet36;havoc test_#t~nondet36; 436#L571 assume !(0 != test_~tmp~7); 508#L571-1 test_~tmp___0~3 := test_#t~nondet37;havoc test_#t~nondet37; 528#L581 assume !(0 != test_~tmp___0~3); 562#L581-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 563#L591 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 414#L599-2 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~6;havoc isPumpRunning_~retValue_acc~6;isPumpRunning_~retValue_acc~6 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~6; 424#L464 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 455#L59 assume !(0 != ~pumpRunning~0); 486#L327 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 545#L411 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret15, processEnvironment__wrappee__lowWaterSensor_~tmp~3;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3; 546#L385-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 467#L359-3 assume !(0 == ~pumpRunning~0); 468#L334 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 533#L174 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 488#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 475#L70-1 [2018-11-29 00:01:38,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:01:38,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2018-11-29 00:01:38,316 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:01:38,316 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:01:38,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:38,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:01:38,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:38,443 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:01:38,443 INFO L82 PathProgramCache]: Analyzing trace with hash 239725566, now seen corresponding path program 1 times [2018-11-29 00:01:38,443 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:01:38,444 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:01:38,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:38,445 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-29 00:01:38,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-29 00:01:38,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-29 00:01:38,511 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-29 00:01:38,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-29 00:01:38,511 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-29 00:01:38,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-29 00:01:38,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-29 00:01:38,512 INFO L87 Difference]: Start difference. First operand 188 states and 279 transitions. cyclomatic complexity: 93 Second operand 3 states. [2018-11-29 00:01:38,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-29 00:01:38,857 INFO L93 Difference]: Finished difference Result 201 states and 278 transitions. [2018-11-29 00:01:38,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-29 00:01:38,860 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 201 states and 278 transitions. [2018-11-29 00:01:38,865 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 138 [2018-11-29 00:01:38,868 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 201 states to 201 states and 278 transitions. [2018-11-29 00:01:38,875 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 201 [2018-11-29 00:01:38,875 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 201 [2018-11-29 00:01:38,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 201 states and 278 transitions. [2018-11-29 00:01:38,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-29 00:01:38,882 INFO L705 BuchiCegarLoop]: Abstraction has 201 states and 278 transitions. [2018-11-29 00:01:38,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states and 278 transitions. [2018-11-29 00:01:38,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2018-11-29 00:01:38,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2018-11-29 00:01:38,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 278 transitions. [2018-11-29 00:01:38,907 INFO L728 BuchiCegarLoop]: Abstraction has 201 states and 278 transitions. [2018-11-29 00:01:38,907 INFO L608 BuchiCegarLoop]: Abstraction has 201 states and 278 transitions. [2018-11-29 00:01:38,908 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-29 00:01:38,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 278 transitions. [2018-11-29 00:01:38,912 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 138 [2018-11-29 00:01:38,916 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-29 00:01:38,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-29 00:01:38,919 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-29 00:01:38,919 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] [2018-11-29 00:01:38,919 INFO L794 eck$LassoCheckResult]: Stem: 941#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string19.base, #t~string19.offset := #Ultimate.alloc(13);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25); 819#L-1 havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~4, main_~tmp~1;havoc main_~retValue_acc~4;havoc main_~tmp~1; 820#L640 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 865#L648 main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 876#L300 assume 0 != main_~tmp~1; 943#L272 ~switchedOnBeforeTS~0 := 0; 944#L49 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 850#L70-1 [2018-11-29 00:01:38,920 INFO L796 eck$LassoCheckResult]: Loop: 850#L70-1 assume !false; 851#L562 assume test_~splverifierCounter~0 < 4; 823#L563 test_~tmp~7 := test_#t~nondet36;havoc test_#t~nondet36; 824#L571 assume !(0 != test_~tmp~7); 873#L571-1 test_~tmp___0~3 := test_#t~nondet37;havoc test_#t~nondet37; 889#L581 assume !(0 != test_~tmp___0~3); 931#L581-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 932#L591 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 807#L599-2 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~6;havoc isPumpRunning_~retValue_acc~6;isPumpRunning_~retValue_acc~6 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~6; 816#L464 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 840#L59 assume !(0 != ~pumpRunning~0); 855#L327 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 911#L411 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret15, processEnvironment__wrappee__lowWaterSensor_~tmp~3;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3; 912#L385-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 847#L359-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 848#L182-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 922#L187-3 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 856#L513-9 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 857#L513-11 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 794#L519-3 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 795#L363-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 896#L334 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 897#L174 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 860#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 850#L70-1 [2018-11-29 00:01:38,920 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:01:38,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2018-11-29 00:01:38,920 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:01:38,921 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:01:38,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:38,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:01:38,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:38,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:01:38,996 INFO L82 PathProgramCache]: Analyzing trace with hash 444481642, now seen corresponding path program 1 times [2018-11-29 00:01:38,996 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:01:38,996 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:01:39,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:39,001 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-29 00:01:39,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-29 00:01:39,225 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-29 00:01:39,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-29 00:01:39,295 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-29 00:01:39,295 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-29 00:01:39,296 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-29 00:01:39,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-29 00:01:39,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-29 00:01:39,297 INFO L87 Difference]: Start difference. First operand 201 states and 278 transitions. cyclomatic complexity: 79 Second operand 5 states. [2018-11-29 00:01:40,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-29 00:01:40,606 INFO L93 Difference]: Finished difference Result 916 states and 1281 transitions. [2018-11-29 00:01:40,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-29 00:01:40,609 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 916 states and 1281 transitions. [2018-11-29 00:01:40,619 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 625 [2018-11-29 00:01:40,627 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 916 states to 916 states and 1281 transitions. [2018-11-29 00:01:40,628 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 916 [2018-11-29 00:01:40,629 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 916 [2018-11-29 00:01:40,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 916 states and 1281 transitions. [2018-11-29 00:01:40,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-29 00:01:40,635 INFO L705 BuchiCegarLoop]: Abstraction has 916 states and 1281 transitions. [2018-11-29 00:01:40,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states and 1281 transitions. [2018-11-29 00:01:40,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 392. [2018-11-29 00:01:40,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 392 states. [2018-11-29 00:01:40,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 537 transitions. [2018-11-29 00:01:40,660 INFO L728 BuchiCegarLoop]: Abstraction has 392 states and 537 transitions. [2018-11-29 00:01:40,660 INFO L608 BuchiCegarLoop]: Abstraction has 392 states and 537 transitions. [2018-11-29 00:01:40,660 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-29 00:01:40,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 392 states and 537 transitions. [2018-11-29 00:01:40,663 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 274 [2018-11-29 00:01:40,663 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-29 00:01:40,663 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-29 00:01:40,664 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-29 00:01:40,664 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] [2018-11-29 00:01:40,665 INFO L794 eck$LassoCheckResult]: Stem: 2093#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string19.base, #t~string19.offset := #Ultimate.alloc(13);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25); 1955#L-1 havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~4, main_~tmp~1;havoc main_~retValue_acc~4;havoc main_~tmp~1; 1956#L640 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 2002#L648 main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 2013#L300 assume 0 != main_~tmp~1; 2096#L272 ~switchedOnBeforeTS~0 := 0; 2097#L49 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1986#L70-1 [2018-11-29 00:01:40,665 INFO L796 eck$LassoCheckResult]: Loop: 1986#L70-1 assume !false; 1987#L562 assume test_~splverifierCounter~0 < 4; 2070#L563 test_~tmp~7 := test_#t~nondet36;havoc test_#t~nondet36; 2297#L571 assume !(0 != test_~tmp~7); 2294#L571-1 test_~tmp___0~3 := test_#t~nondet37;havoc test_#t~nondet37; 2293#L581 assume !(0 != test_~tmp___0~3); 2288#L581-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 2287#L591 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2285#L599-2 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~6;havoc isPumpRunning_~retValue_acc~6;isPumpRunning_~retValue_acc~6 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~6; 2284#L464 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 1991#L59 assume !(0 != ~pumpRunning~0); 1992#L327 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 2052#L411 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret15, processEnvironment__wrappee__lowWaterSensor_~tmp~3;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3; 2053#L385-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 1983#L359-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1984#L182-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 2064#L187-3 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 1993#L513-9 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 1994#L513-11 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 1930#L519-3 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 1931#L363-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 2035#L334 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 2036#L174 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 2129#L70 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~6;havoc isPumpRunning_~retValue_acc~6;isPumpRunning_~retValue_acc~6 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~6; 2130#L464-1 __utac_acc__Specification5_spec__3_#t~ret2 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 2100#L74 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 1986#L70-1 [2018-11-29 00:01:40,665 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:01:40,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2018-11-29 00:01:40,665 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:01:40,666 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:01:40,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:40,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:01:40,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:40,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:01:40,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1945086949, now seen corresponding path program 1 times [2018-11-29 00:01:40,774 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:01:40,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:01:40,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:40,776 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-29 00:01:40,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:40,793 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:01:40,793 INFO L82 PathProgramCache]: Analyzing trace with hash -21124693, now seen corresponding path program 1 times [2018-11-29 00:01:40,794 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:01:40,794 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:01:40,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:40,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:01:40,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:01:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:01:42,052 WARN L180 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2018-11-29 00:01:50,618 WARN L180 SmtUtils]: Spent 8.46 s on a formula simplification. DAG size of input: 429 DAG size of output: 427 [2018-11-29 00:01:54,634 WARN L180 SmtUtils]: Spent 4.01 s on a formula simplification that was a NOOP. DAG size: 425 [2018-11-29 00:01:54,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 12:01:54 BoogieIcfgContainer [2018-11-29 00:01:54,723 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-29 00:01:54,724 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-29 00:01:54,724 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-29 00:01:54,724 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-29 00:01:54,725 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:01:37" (3/4) ... [2018-11-29 00:01:54,729 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-29 00:01:54,825 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-29 00:01:54,825 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-29 00:01:54,826 INFO L168 Benchmark]: Toolchain (without parser) took 20087.47 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 316.1 MB). Free memory was 954.0 MB in the beginning and 850.8 MB in the end (delta: 103.3 MB). Peak memory consumption was 419.4 MB. Max. memory is 11.5 GB. [2018-11-29 00:01:54,827 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-29 00:01:54,831 INFO L168 Benchmark]: CACSL2BoogieTranslator took 788.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 954.0 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 43.6 MB. Max. memory is 11.5 GB. [2018-11-29 00:01:54,832 INFO L168 Benchmark]: Boogie Procedure Inliner took 132.65 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-29 00:01:54,834 INFO L168 Benchmark]: Boogie Preprocessor took 72.03 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-29 00:01:54,834 INFO L168 Benchmark]: RCFGBuilder took 1773.72 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: 74.2 MB). Peak memory consumption was 74.2 MB. Max. memory is 11.5 GB. [2018-11-29 00:01:54,835 INFO L168 Benchmark]: BuchiAutomizer took 17210.07 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 180.4 MB). Free memory was 1.0 GB in the beginning and 860.3 MB in the end (delta: 180.8 MB). Peak memory consumption was 368.8 MB. Max. memory is 11.5 GB. [2018-11-29 00:01:54,836 INFO L168 Benchmark]: Witness Printer took 101.42 ms. Allocated memory is still 1.3 GB. Free memory was 860.3 MB in the beginning and 850.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2018-11-29 00:01:54,839 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 788.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 954.0 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 43.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 132.65 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.03 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1773.72 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: 74.2 MB). Peak memory consumption was 74.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 17210.07 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 180.4 MB). Free memory was 1.0 GB in the beginning and 860.3 MB in the end (delta: 180.8 MB). Peak memory consumption was 368.8 MB. Max. memory is 11.5 GB. * Witness Printer took 101.42 ms. Allocated memory is still 1.3 GB. Free memory was 860.3 MB in the beginning and 850.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 392 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 17.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 15.0s. Construction of modules took 1.3s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 524 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 392 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 920 SDtfs, 1445 SDslu, 1171 SDs, 0 SdLazy, 232 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time LassoAnalysisResults: nont1 unkn0 SFLI3 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: 561]: 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=27, NULL=0, NULL=24, NULL=0, NULL=15, methaneLevelCritical=0, retValue_acc=1, NULL=0, NULL=37, tmp=0, NULL=22, retValue_acc=0, tmp___1=0, NULL=33, NULL=39, NULL=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e0de0f0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42962f94=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14505368=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38949f84=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49ce936f=0, NULL=0, NULL=0, waterLevel=1, NULL=0, NULL=23, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, retValue_acc=1, NULL=0, NULL=0, \result=1, NULL=20, NULL=0, NULL=0, NULL=0, tmp___0=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d79c5f6=0, NULL=26, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1df4fa44=0, NULL=11, head=0, tmp=0, NULL=17, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53df91a=0, NULL=16, NULL=0, retValue_acc=0, NULL=0, NULL=34, NULL=8, NULL=29, tmp___0=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d5ba9d=0, tmp=0, tmp=1, NULL=0, NULL=0, switchedOnBeforeTS=0, NULL=19, NULL=36, tmp=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=14, \result=1, NULL=18, \result=0, NULL=0, NULL=28, tmp___0=0, \result=0, NULL=31, NULL=0, tmp___2=56, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e6f53a0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51333c5=0, NULL=35, NULL=12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41b66c3f=0, NULL=38, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L43] int switchedOnBeforeTS ; [L99] int waterLevel = 1; [L100] int methaneLevelCritical = 0; [L211] int cleanupTimeShifts = 4; [L317] int pumpRunning = 0; [L318] int systemActive = 1; [L822] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L291] int retValue_acc ; [L292] int tmp ; [L644] int retValue_acc ; [L647] retValue_acc = 1 [L648] return (retValue_acc); [L298] tmp = valid_product() [L300] COND TRUE \read(tmp) [L48] switchedOnBeforeTS = 0 [L552] int splverifierCounter ; [L553] int tmp ; [L554] int tmp___0 ; [L555] int tmp___1 ; [L556] int tmp___2 ; [L559] splverifierCounter = 0 Loop: [L561] COND TRUE 1 [L563] COND TRUE splverifierCounter < 4 [L569] tmp = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp)) [L579] tmp___0 = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp___0)) [L589] tmp___2 = __VERIFIER_nondet_int() [L591] COND TRUE \read(tmp___2) [L546] systemActive = 1 [L460] int retValue_acc ; [L463] retValue_acc = pumpRunning [L464] return (retValue_acc); [L57] switchedOnBeforeTS = isPumpRunning() [L327] COND FALSE !(\read(pumpRunning)) [L334] COND TRUE \read(systemActive) [L408] int tmp ; [L411] COND FALSE !(\read(pumpRunning)) [L382] int tmp ; [L385] COND FALSE !(\read(pumpRunning)) [L356] int tmp ; [L359] COND TRUE ! pumpRunning [L505] int retValue_acc ; [L506] int tmp ; [L507] int tmp___0 ; [L179] int retValue_acc ; [L182] COND TRUE waterLevel < 2 [L183] retValue_acc = 1 [L184] return (retValue_acc); [L511] tmp = isHighWaterSensorDry() [L513] COND TRUE \read(tmp) [L514] tmp___0 = 0 [L518] retValue_acc = tmp___0 [L519] return (retValue_acc); [L361] tmp = isHighWaterLevel() [L363] COND FALSE !(\read(tmp)) [L63] int tmp ; [L64] int tmp___0 ; [L170] int retValue_acc ; [L173] retValue_acc = waterLevel [L174] return (retValue_acc); [L68] tmp = getWaterLevel() [L70] COND TRUE tmp != 2 [L460] int retValue_acc ; [L463] retValue_acc = pumpRunning [L464] return (retValue_acc); [L72] tmp___0 = isPumpRunning() [L74] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...