./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product54.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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 ../sv-benchmarks/c/product-lines/minepump_spec2_product54.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 5f4b0de905917a1846797fc2994ae6377b8a6114 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-8bd4bc6 [2020-07-29 02:38:06,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 02:38:06,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 02:38:06,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 02:38:06,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 02:38:06,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 02:38:06,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 02:38:06,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 02:38:06,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 02:38:06,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 02:38:06,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 02:38:06,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 02:38:06,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 02:38:06,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 02:38:06,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 02:38:06,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 02:38:06,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 02:38:06,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 02:38:06,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 02:38:06,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 02:38:06,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 02:38:06,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 02:38:06,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 02:38:06,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 02:38:06,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 02:38:06,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 02:38:06,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 02:38:06,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 02:38:06,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 02:38:06,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 02:38:06,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 02:38:06,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 02:38:06,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 02:38:06,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 02:38:06,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 02:38:06,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 02:38:06,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 02:38:06,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 02:38:06,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 02:38:06,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 02:38:06,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 02:38:06,655 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 02:38:06,680 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 02:38:06,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 02:38:06,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 02:38:06,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 02:38:06,683 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 02:38:06,683 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 02:38:06,684 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 02:38:06,684 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 02:38:06,684 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 02:38:06,684 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 02:38:06,684 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 02:38:06,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 02:38:06,685 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 02:38:06,685 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 02:38:06,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 02:38:06,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 02:38:06,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 02:38:06,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 02:38:06,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 02:38:06,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 02:38:06,687 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 02:38:06,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 02:38:06,687 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 02:38:06,687 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 02:38:06,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 02:38:06,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 02:38:06,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 02:38:06,688 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 02:38:06,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 02:38:06,689 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 02:38:06,689 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 02:38:06,689 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 02:38:06,690 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 02:38:06,690 INFO L138 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 -> 5f4b0de905917a1846797fc2994ae6377b8a6114 [2020-07-29 02:38:07,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 02:38:07,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 02:38:07,082 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 02:38:07,084 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 02:38:07,086 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 02:38:07,088 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product54.cil.c [2020-07-29 02:38:07,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a975ce04/4c86838550f547c28fef83cdf4dc4fb5/FLAG847bfdc1a [2020-07-29 02:38:07,805 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 02:38:07,806 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product54.cil.c [2020-07-29 02:38:07,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a975ce04/4c86838550f547c28fef83cdf4dc4fb5/FLAG847bfdc1a [2020-07-29 02:38:08,072 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a975ce04/4c86838550f547c28fef83cdf4dc4fb5 [2020-07-29 02:38:08,077 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 02:38:08,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 02:38:08,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 02:38:08,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 02:38:08,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 02:38:08,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:38:08" (1/1) ... [2020-07-29 02:38:08,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@719c97f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:38:08, skipping insertion in model container [2020-07-29 02:38:08,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:38:08" (1/1) ... [2020-07-29 02:38:08,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 02:38:08,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 02:38:08,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:38:08,607 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 02:38:08,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:38:08,759 INFO L208 MainTranslator]: Completed translation [2020-07-29 02:38:08,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:38:08 WrapperNode [2020-07-29 02:38:08,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 02:38:08,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 02:38:08,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 02:38:08,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 02:38:08,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:38:08" (1/1) ... [2020-07-29 02:38:08,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:38:08" (1/1) ... [2020-07-29 02:38:08,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 02:38:08,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 02:38:08,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 02:38:08,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 02:38:08,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:38:08" (1/1) ... [2020-07-29 02:38:08,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:38:08" (1/1) ... [2020-07-29 02:38:08,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:38:08" (1/1) ... [2020-07-29 02:38:08,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:38:08" (1/1) ... [2020-07-29 02:38:08,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:38:08" (1/1) ... [2020-07-29 02:38:08,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:38:08" (1/1) ... [2020-07-29 02:38:08,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:38:08" (1/1) ... [2020-07-29 02:38:08,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 02:38:08,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 02:38:08,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 02:38:08,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 02:38:08,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:38:08" (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 [2020-07-29 02:38:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 02:38:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-29 02:38:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 02:38:09,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 02:38:10,667 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 02:38:10,668 INFO L295 CfgBuilder]: Removed 280 assume(true) statements. [2020-07-29 02:38:10,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:38:10 BoogieIcfgContainer [2020-07-29 02:38:10,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 02:38:10,674 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 02:38:10,675 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 02:38:10,679 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 02:38:10,680 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:38:10,680 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 02:38:08" (1/3) ... [2020-07-29 02:38:10,681 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d55be77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:38:10, skipping insertion in model container [2020-07-29 02:38:10,682 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:38:10,682 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:38:08" (2/3) ... [2020-07-29 02:38:10,683 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d55be77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:38:10, skipping insertion in model container [2020-07-29 02:38:10,683 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:38:10,683 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:38:10" (3/3) ... [2020-07-29 02:38:10,685 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product54.cil.c [2020-07-29 02:38:10,743 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 02:38:10,743 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 02:38:10,743 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 02:38:10,744 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 02:38:10,744 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 02:38:10,744 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 02:38:10,745 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 02:38:10,745 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 02:38:10,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 190 states. [2020-07-29 02:38:10,833 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2020-07-29 02:38:10,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:38:10,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:38:10,842 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:38:10,843 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:38:10,843 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 02:38:10,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 190 states. [2020-07-29 02:38:10,861 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2020-07-29 02:38:10,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:38:10,862 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:38:10,863 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:38:10,864 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:38:10,871 INFO L794 eck$LassoCheckResult]: Stem: 150#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(30);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(9);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 14#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 153#L985true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 175#L993true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 152#L132true assume 0 != main_~tmp~0; 38#L103true ~methAndRunningLastTime~0 := 0; 67#L155true havoc test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 65#L166-1true [2020-07-29 02:38:10,872 INFO L796 eck$LassoCheckResult]: Loop: 65#L166-1true assume !false; 9#L566true assume test_~splverifierCounter~0 < 4; 145#L567true test_~tmp~5 := test_#t~nondet38;havoc test_#t~nondet38; 161#L575true assume !(0 != test_~tmp~5); 149#L575-1true test_~tmp___0~1 := test_#t~nondet39;havoc test_#t~nondet39; 16#L585true assume !(0 != test_~tmp___0~1); 20#L585-1true test_~tmp___2~0 := test_#t~nondet40;havoc test_#t~nondet40; 117#L595true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 126#L603-2true assume !(0 != ~pumpRunning~0); 189#L635true assume !(0 != ~systemActive~0); 105#L642true havoc __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_#t~ret2, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 138#L903-1true __utac_acc__Specification2_spec__2_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret1;havoc __utac_acc__Specification2_spec__2_#t~ret1; 69#L166true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 65#L166-1true [2020-07-29 02:38:10,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:38:10,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-07-29 02:38:10,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:38:10,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595142670] [2020-07-29 02:38:10,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:38:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:38:11,260 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:38:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:38:11,341 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:38:11,403 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:38:11,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:38:11,405 INFO L82 PathProgramCache]: Analyzing trace with hash 8756043, now seen corresponding path program 1 times [2020-07-29 02:38:11,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:38:11,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399825698] [2020-07-29 02:38:11,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:38:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:38:11,500 INFO L280 TraceCheckUtils]: 0: Hoare triple {196#true} assume !false; {196#true} is VALID [2020-07-29 02:38:11,500 INFO L280 TraceCheckUtils]: 1: Hoare triple {196#true} assume test_~splverifierCounter~0 < 4; {196#true} is VALID [2020-07-29 02:38:11,501 INFO L280 TraceCheckUtils]: 2: Hoare triple {196#true} test_~tmp~5 := test_#t~nondet38;havoc test_#t~nondet38; {196#true} is VALID [2020-07-29 02:38:11,501 INFO L280 TraceCheckUtils]: 3: Hoare triple {196#true} assume !(0 != test_~tmp~5); {196#true} is VALID [2020-07-29 02:38:11,501 INFO L280 TraceCheckUtils]: 4: Hoare triple {196#true} test_~tmp___0~1 := test_#t~nondet39;havoc test_#t~nondet39; {196#true} is VALID [2020-07-29 02:38:11,502 INFO L280 TraceCheckUtils]: 5: Hoare triple {196#true} assume !(0 != test_~tmp___0~1); {196#true} is VALID [2020-07-29 02:38:11,502 INFO L280 TraceCheckUtils]: 6: Hoare triple {196#true} test_~tmp___2~0 := test_#t~nondet40;havoc test_#t~nondet40; {196#true} is VALID [2020-07-29 02:38:11,504 INFO L280 TraceCheckUtils]: 7: Hoare triple {196#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {198#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:38:11,506 INFO L280 TraceCheckUtils]: 8: Hoare triple {198#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {198#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:38:11,507 INFO L280 TraceCheckUtils]: 9: Hoare triple {198#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {197#false} is VALID [2020-07-29 02:38:11,508 INFO L280 TraceCheckUtils]: 10: Hoare triple {197#false} havoc __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_#t~ret2, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; {197#false} is VALID [2020-07-29 02:38:11,508 INFO L280 TraceCheckUtils]: 11: Hoare triple {197#false} __utac_acc__Specification2_spec__2_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret1;havoc __utac_acc__Specification2_spec__2_#t~ret1; {197#false} is VALID [2020-07-29 02:38:11,509 INFO L280 TraceCheckUtils]: 12: Hoare triple {197#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; {197#false} is VALID [2020-07-29 02:38:11,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:38:11,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399825698] [2020-07-29 02:38:11,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:38:11,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-29 02:38:11,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049626517] [2020-07-29 02:38:11,521 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-29 02:38:11,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:38:11,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 02:38:11,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 02:38:11,540 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 3 states. [2020-07-29 02:38:12,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:38:12,058 INFO L93 Difference]: Finished difference Result 190 states and 282 transitions. [2020-07-29 02:38:12,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 02:38:12,063 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 02:38:12,087 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:38:12,089 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 190 states and 282 transitions. [2020-07-29 02:38:12,111 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2020-07-29 02:38:12,131 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 190 states to 183 states and 274 transitions. [2020-07-29 02:38:12,132 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2020-07-29 02:38:12,133 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2020-07-29 02:38:12,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 274 transitions. [2020-07-29 02:38:12,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:38:12,136 INFO L688 BuchiCegarLoop]: Abstraction has 183 states and 274 transitions. [2020-07-29 02:38:12,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 274 transitions. [2020-07-29 02:38:12,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2020-07-29 02:38:12,194 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:38:12,195 INFO L82 GeneralOperation]: Start isEquivalent. First operand 183 states and 274 transitions. Second operand 183 states. [2020-07-29 02:38:12,195 INFO L74 IsIncluded]: Start isIncluded. First operand 183 states and 274 transitions. Second operand 183 states. [2020-07-29 02:38:12,196 INFO L87 Difference]: Start difference. First operand 183 states and 274 transitions. Second operand 183 states. [2020-07-29 02:38:12,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:38:12,211 INFO L93 Difference]: Finished difference Result 183 states and 274 transitions. [2020-07-29 02:38:12,212 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 274 transitions. [2020-07-29 02:38:12,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:38:12,214 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:38:12,214 INFO L74 IsIncluded]: Start isIncluded. First operand 183 states. Second operand 183 states and 274 transitions. [2020-07-29 02:38:12,215 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 183 states and 274 transitions. [2020-07-29 02:38:12,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:38:12,227 INFO L93 Difference]: Finished difference Result 183 states and 274 transitions. [2020-07-29 02:38:12,227 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 274 transitions. [2020-07-29 02:38:12,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:38:12,229 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:38:12,230 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:38:12,230 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:38:12,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-07-29 02:38:12,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 274 transitions. [2020-07-29 02:38:12,242 INFO L711 BuchiCegarLoop]: Abstraction has 183 states and 274 transitions. [2020-07-29 02:38:12,243 INFO L591 BuchiCegarLoop]: Abstraction has 183 states and 274 transitions. [2020-07-29 02:38:12,243 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 02:38:12,243 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 274 transitions. [2020-07-29 02:38:12,245 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2020-07-29 02:38:12,245 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:38:12,245 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:38:12,246 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:38:12,246 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:38:12,247 INFO L794 eck$LassoCheckResult]: Stem: 564#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(30);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(9);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 413#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 414#L985 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 566#L993 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 565#L132 assume 0 != main_~tmp~0; 453#L103 ~methAndRunningLastTime~0 := 0; 454#L155 havoc test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 491#L166-1 [2020-07-29 02:38:12,247 INFO L796 eck$LassoCheckResult]: Loop: 491#L166-1 assume !false; 401#L566 assume test_~splverifierCounter~0 < 4; 402#L567 test_~tmp~5 := test_#t~nondet38;havoc test_#t~nondet38; 563#L575 assume !(0 != test_~tmp~5); 562#L575-1 test_~tmp___0~1 := test_#t~nondet39;havoc test_#t~nondet39; 417#L585 assume !(0 != test_~tmp___0~1); 419#L585-1 test_~tmp___2~0 := test_#t~nondet40;havoc test_#t~nondet40; 423#L595 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 543#L603-2 assume !(0 != ~pumpRunning~0); 396#L635 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret44, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 551#L719 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret43, processEnvironment__wrappee__lowWaterSensor_~tmp~7;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~7; 552#L693-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret42, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 492#L667-3 assume !(0 == ~pumpRunning~0); 486#L642 havoc __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_#t~ret2, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 533#L903-1 __utac_acc__Specification2_spec__2_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret1;havoc __utac_acc__Specification2_spec__2_#t~ret1; 495#L166 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 491#L166-1 [2020-07-29 02:38:12,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:38:12,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-07-29 02:38:12,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:38:12,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458626846] [2020-07-29 02:38:12,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:38:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:38:12,328 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:38:12,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:38:12,445 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:38:12,470 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:38:12,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:38:12,471 INFO L82 PathProgramCache]: Analyzing trace with hash 761854716, now seen corresponding path program 1 times [2020-07-29 02:38:12,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:38:12,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531447844] [2020-07-29 02:38:12,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:38:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:38:12,501 INFO L280 TraceCheckUtils]: 0: Hoare triple {943#true} assume !false; {943#true} is VALID [2020-07-29 02:38:12,502 INFO L280 TraceCheckUtils]: 1: Hoare triple {943#true} assume test_~splverifierCounter~0 < 4; {943#true} is VALID [2020-07-29 02:38:12,502 INFO L280 TraceCheckUtils]: 2: Hoare triple {943#true} test_~tmp~5 := test_#t~nondet38;havoc test_#t~nondet38; {943#true} is VALID [2020-07-29 02:38:12,502 INFO L280 TraceCheckUtils]: 3: Hoare triple {943#true} assume !(0 != test_~tmp~5); {943#true} is VALID [2020-07-29 02:38:12,502 INFO L280 TraceCheckUtils]: 4: Hoare triple {943#true} test_~tmp___0~1 := test_#t~nondet39;havoc test_#t~nondet39; {943#true} is VALID [2020-07-29 02:38:12,503 INFO L280 TraceCheckUtils]: 5: Hoare triple {943#true} assume !(0 != test_~tmp___0~1); {943#true} is VALID [2020-07-29 02:38:12,503 INFO L280 TraceCheckUtils]: 6: Hoare triple {943#true} test_~tmp___2~0 := test_#t~nondet40;havoc test_#t~nondet40; {943#true} is VALID [2020-07-29 02:38:12,503 INFO L280 TraceCheckUtils]: 7: Hoare triple {943#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {943#true} is VALID [2020-07-29 02:38:12,504 INFO L280 TraceCheckUtils]: 8: Hoare triple {943#true} assume !(0 != ~pumpRunning~0); {945#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 02:38:12,505 INFO L280 TraceCheckUtils]: 9: Hoare triple {945#(= 0 ~pumpRunning~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret44, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; {945#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 02:38:12,505 INFO L280 TraceCheckUtils]: 10: Hoare triple {945#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret43, processEnvironment__wrappee__lowWaterSensor_~tmp~7;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~7; {945#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 02:38:12,506 INFO L280 TraceCheckUtils]: 11: Hoare triple {945#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret42, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; {945#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 02:38:12,506 INFO L280 TraceCheckUtils]: 12: Hoare triple {945#(= 0 ~pumpRunning~0)} assume !(0 == ~pumpRunning~0); {944#false} is VALID [2020-07-29 02:38:12,507 INFO L280 TraceCheckUtils]: 13: Hoare triple {944#false} havoc __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_#t~ret2, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; {944#false} is VALID [2020-07-29 02:38:12,507 INFO L280 TraceCheckUtils]: 14: Hoare triple {944#false} __utac_acc__Specification2_spec__2_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret1;havoc __utac_acc__Specification2_spec__2_#t~ret1; {944#false} is VALID [2020-07-29 02:38:12,507 INFO L280 TraceCheckUtils]: 15: Hoare triple {944#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; {944#false} is VALID [2020-07-29 02:38:12,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:38:12,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531447844] [2020-07-29 02:38:12,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:38:12,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-29 02:38:12,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907452096] [2020-07-29 02:38:12,512 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-29 02:38:12,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:38:12,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 02:38:12,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 02:38:12,513 INFO L87 Difference]: Start difference. First operand 183 states and 274 transitions. cyclomatic complexity: 93 Second operand 3 states. [2020-07-29 02:38:12,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:38:12,938 INFO L93 Difference]: Finished difference Result 191 states and 268 transitions. [2020-07-29 02:38:12,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 02:38:12,938 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 02:38:12,958 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:38:12,959 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 191 states and 268 transitions. [2020-07-29 02:38:12,969 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2020-07-29 02:38:12,980 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 191 states to 191 states and 268 transitions. [2020-07-29 02:38:12,980 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 191 [2020-07-29 02:38:12,981 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 191 [2020-07-29 02:38:12,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 191 states and 268 transitions. [2020-07-29 02:38:12,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:38:12,985 INFO L688 BuchiCegarLoop]: Abstraction has 191 states and 268 transitions. [2020-07-29 02:38:12,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states and 268 transitions. [2020-07-29 02:38:13,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2020-07-29 02:38:13,006 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:38:13,006 INFO L82 GeneralOperation]: Start isEquivalent. First operand 191 states and 268 transitions. Second operand 191 states. [2020-07-29 02:38:13,006 INFO L74 IsIncluded]: Start isIncluded. First operand 191 states and 268 transitions. Second operand 191 states. [2020-07-29 02:38:13,006 INFO L87 Difference]: Start difference. First operand 191 states and 268 transitions. Second operand 191 states. [2020-07-29 02:38:13,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:38:13,016 INFO L93 Difference]: Finished difference Result 191 states and 268 transitions. [2020-07-29 02:38:13,016 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 268 transitions. [2020-07-29 02:38:13,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:38:13,022 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:38:13,022 INFO L74 IsIncluded]: Start isIncluded. First operand 191 states. Second operand 191 states and 268 transitions. [2020-07-29 02:38:13,022 INFO L87 Difference]: Start difference. First operand 191 states. Second operand 191 states and 268 transitions. [2020-07-29 02:38:13,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:38:13,031 INFO L93 Difference]: Finished difference Result 191 states and 268 transitions. [2020-07-29 02:38:13,032 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 268 transitions. [2020-07-29 02:38:13,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:38:13,033 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:38:13,033 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:38:13,033 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:38:13,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-07-29 02:38:13,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 268 transitions. [2020-07-29 02:38:13,040 INFO L711 BuchiCegarLoop]: Abstraction has 191 states and 268 transitions. [2020-07-29 02:38:13,040 INFO L591 BuchiCegarLoop]: Abstraction has 191 states and 268 transitions. [2020-07-29 02:38:13,040 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-29 02:38:13,040 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 191 states and 268 transitions. [2020-07-29 02:38:13,043 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2020-07-29 02:38:13,043 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:38:13,043 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:38:13,045 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:38:13,045 INFO L850 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] [2020-07-29 02:38:13,045 INFO L794 eck$LassoCheckResult]: Stem: 1279#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(30);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(9);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1154#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1155#L985 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1281#L993 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1280#L132 assume 0 != main_~tmp~0; 1190#L103 ~methAndRunningLastTime~0 := 0; 1191#L155 havoc test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1215#L166-1 [2020-07-29 02:38:13,046 INFO L796 eck$LassoCheckResult]: Loop: 1215#L166-1 assume !false; 1145#L566 assume test_~splverifierCounter~0 < 4; 1146#L567 test_~tmp~5 := test_#t~nondet38;havoc test_#t~nondet38; 1278#L575 assume !(0 != test_~tmp~5); 1277#L575-1 test_~tmp___0~1 := test_#t~nondet39;havoc test_#t~nondet39; 1158#L585 assume !(0 != test_~tmp___0~1); 1160#L585-1 test_~tmp___2~0 := test_#t~nondet40;havoc test_#t~nondet40; 1166#L595 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1259#L603-2 assume !(0 != ~pumpRunning~0); 1268#L635 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret44, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 1266#L719 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret43, processEnvironment__wrappee__lowWaterSensor_~tmp~7;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~7; 1267#L693-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret42, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1216#L667-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret62, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 1143#L943-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 1144#L948-3 isHighWaterLevel_#t~ret62 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret62;havoc isHighWaterLevel_#t~ret62; 1205#L821-9 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 1222#L821-11 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1181#L827-3 processEnvironment__wrappee__highWaterSensor_#t~ret42 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret42;havoc processEnvironment__wrappee__highWaterSensor_#t~ret42; 1182#L671-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 1243#L642 havoc __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_#t~ret2, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 1250#L903-1 __utac_acc__Specification2_spec__2_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret1;havoc __utac_acc__Specification2_spec__2_#t~ret1; 1217#L166 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 1215#L166-1 [2020-07-29 02:38:13,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:38:13,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-07-29 02:38:13,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:38:13,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90679098] [2020-07-29 02:38:13,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:38:13,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:38:13,115 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:38:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:38:13,159 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:38:13,178 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:38:13,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:38:13,178 INFO L82 PathProgramCache]: Analyzing trace with hash 855373672, now seen corresponding path program 1 times [2020-07-29 02:38:13,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:38:13,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114849907] [2020-07-29 02:38:13,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:38:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:38:13,188 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:38:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:38:13,193 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:38:13,199 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:38:13,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:38:13,200 INFO L82 PathProgramCache]: Analyzing trace with hash -11810770, now seen corresponding path program 1 times [2020-07-29 02:38:13,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:38:13,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171958182] [2020-07-29 02:38:13,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:38:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:38:13,269 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:38:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:38:13,309 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:38:13,327 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:38:13,440 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-07-29 02:39:02,914 WARN L193 SmtUtils]: Spent 49.36 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2020-07-29 02:39:43,786 WARN L193 SmtUtils]: Spent 40.55 s on a formula simplification that was a NOOP. DAG size: 402 [2020-07-29 02:39:44,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 02:39:44 BoogieIcfgContainer [2020-07-29 02:39:44,146 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 02:39:44,146 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 02:39:44,147 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 02:39:44,147 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 02:39:44,148 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:38:10" (3/4) ... [2020-07-29 02:39:44,163 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 02:39:44,283 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 02:39:44,283 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 02:39:44,286 INFO L168 Benchmark]: Toolchain (without parser) took 96207.60 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 348.1 MB). Free memory was 954.9 MB in the beginning and 1.3 GB in the end (delta: -335.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2020-07-29 02:39:44,286 INFO L168 Benchmark]: CDTParser took 1.04 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:39:44,287 INFO L168 Benchmark]: CACSL2BoogieTranslator took 678.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -144.5 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2020-07-29 02:39:44,287 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.55 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-29 02:39:44,288 INFO L168 Benchmark]: Boogie Preprocessor took 67.53 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-29 02:39:44,288 INFO L168 Benchmark]: RCFGBuilder took 1730.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 905.1 MB in the end (delta: 180.8 MB). Peak memory consumption was 180.8 MB. Max. memory is 11.5 GB. [2020-07-29 02:39:44,289 INFO L168 Benchmark]: BuchiAutomizer took 93471.66 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 223.3 MB). Free memory was 905.1 MB in the beginning and 1.3 GB in the end (delta: -385.1 MB). Peak memory consumption was 280.6 MB. Max. memory is 11.5 GB. [2020-07-29 02:39:44,289 INFO L168 Benchmark]: Witness Printer took 137.25 ms. Allocated memory is still 1.4 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:39:44,291 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.04 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 678.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -144.5 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 114.55 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 67.53 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1730.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 905.1 MB in the end (delta: 180.8 MB). Peak memory consumption was 180.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 93471.66 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 223.3 MB). Free memory was 905.1 MB in the beginning and 1.3 GB in the end (delta: -385.1 MB). Peak memory consumption was 280.6 MB. Max. memory is 11.5 GB. * Witness Printer took 137.25 ms. Allocated memory is still 1.4 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 191 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 93.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 91.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 191 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 485 SDtfs, 418 SDslu, 81 SDs, 0 SdLazy, 45 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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: 565]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=51666, retValue_acc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6719c361=0, NULL=26572, NULL=0, retValue_acc=1, methaneLevelCritical=0, tmp___0=0, tmp=0, NULL=0, NULL=0, tmp=0, NULL=26571, NULL=0, tmp___1=0, retValue_acc=0, NULL=26565, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@183983d0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69a75543=0, cleanupTimeShifts=4, NULL=26575, NULL=26568, NULL=26560, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ab50c05=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54828162=0, tmp=0, NULL=26569, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bc3606e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59a9a385=39, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bb95207=0, systemActive=1, waterLevel=1, NULL=26573, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a68c8eb=0, retValue_acc=0, NULL=0, \result=0, NULL=51660, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, tmp=1, NULL=51664, NULL=51665, \result=0, NULL=26562, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44d66edc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1beca06=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=26566, \result=1, tmp___0=0, NULL=51661, NULL=51662, NULL=26567, NULL=0, NULL=0, tmp___2=39, NULL=51667, tmp___0=0, NULL=26563, retValue_acc=1, splverifierCounter=0, NULL=0, tmp=1, methAndRunningLastTime=0, \result=0, NULL=26561, NULL=51663, head=0, NULL=0, NULL=26564, NULL=0, NULL=26570, tmp=0, NULL=0, tmp=0, NULL=0, NULL=26574, NULL=51668} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L149] int methAndRunningLastTime ; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L628] int pumpRunning = 0; [L629] int systemActive = 1; [L860] int waterLevel = 1; [L861] int methaneLevelCritical = 0; [L123] int retValue_acc ; [L124] int tmp ; [L989] int retValue_acc ; [L992] retValue_acc = 1 [L993] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L154] methAndRunningLastTime = 0 [L556] int splverifierCounter ; [L557] int tmp ; [L558] int tmp___0 ; [L559] int tmp___1 ; [L560] int tmp___2 ; [L563] splverifierCounter = 0 Loop: [L565] COND TRUE 1 [L567] COND TRUE splverifierCounter < 4 [L573] tmp = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp)) [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND TRUE \read(tmp___2) [L854] systemActive = 1 [L635] COND FALSE !(\read(pumpRunning)) [L642] COND TRUE \read(systemActive) [L716] int tmp ; [L719] COND FALSE !(\read(pumpRunning)) [L690] int tmp ; [L693] COND FALSE !(\read(pumpRunning)) [L664] int tmp ; [L667] COND TRUE ! pumpRunning [L813] int retValue_acc ; [L814] int tmp ; [L815] int tmp___0 ; [L940] int retValue_acc ; [L943] COND TRUE waterLevel < 2 [L944] retValue_acc = 1 [L945] return (retValue_acc); [L819] tmp = isHighWaterSensorDry() [L821] COND TRUE \read(tmp) [L822] tmp___0 = 0 [L826] retValue_acc = tmp___0 [L827] return (retValue_acc); [L669] tmp = isHighWaterLevel() [L671] COND FALSE !(\read(tmp)) [L159] int tmp ; [L160] int tmp___0 ; [L899] int retValue_acc ; [L902] retValue_acc = methaneLevelCritical [L903] return (retValue_acc); [L164] tmp = isMethaneLevelCritical() [L166] COND FALSE !(\read(tmp)) [L182] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...