./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/product-lines/minepump_spec5_product49.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 c3f15e5f0b48b2733d67e168986a8e79f37fa442 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-f6fb2bb [2019-11-19 20:05:24,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 20:05:24,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 20:05:24,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 20:05:24,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 20:05:24,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 20:05:24,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 20:05:24,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 20:05:24,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 20:05:24,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 20:05:24,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 20:05:24,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 20:05:24,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 20:05:24,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 20:05:24,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 20:05:24,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 20:05:24,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 20:05:24,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 20:05:24,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 20:05:24,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 20:05:24,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 20:05:24,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 20:05:24,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 20:05:24,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 20:05:24,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 20:05:24,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 20:05:24,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 20:05:24,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 20:05:24,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 20:05:24,563 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 20:05:24,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 20:05:24,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 20:05:24,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 20:05:24,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 20:05:24,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 20:05:24,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 20:05:24,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 20:05:24,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 20:05:24,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 20:05:24,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 20:05:24,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 20:05:24,572 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 20:05:24,589 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 20:05:24,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 20:05:24,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 20:05:24,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 20:05:24,591 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 20:05:24,591 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 20:05:24,592 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 20:05:24,592 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 20:05:24,592 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 20:05:24,592 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 20:05:24,593 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 20:05:24,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 20:05:24,593 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 20:05:24,593 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 20:05:24,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 20:05:24,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 20:05:24,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 20:05:24,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 20:05:24,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 20:05:24,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 20:05:24,595 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 20:05:24,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 20:05:24,596 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 20:05:24,596 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 20:05:24,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 20:05:24,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 20:05:24,597 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 20:05:24,597 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 20:05:24,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 20:05:24,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 20:05:24,598 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 20:05:24,599 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 20:05:24,600 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 -> c3f15e5f0b48b2733d67e168986a8e79f37fa442 [2019-11-19 20:05:24,976 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 20:05:24,991 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 20:05:24,996 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 20:05:24,998 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 20:05:24,998 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 20:05:24,999 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c [2019-11-19 20:05:25,067 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/748bf439d/419ee1df87d34f75871155b3a0259bd4/FLAGe434e8231 [2019-11-19 20:05:25,578 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 20:05:25,579 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c [2019-11-19 20:05:25,598 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/748bf439d/419ee1df87d34f75871155b3a0259bd4/FLAGe434e8231 [2019-11-19 20:05:25,858 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/748bf439d/419ee1df87d34f75871155b3a0259bd4 [2019-11-19 20:05:25,862 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 20:05:25,864 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 20:05:25,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 20:05:25,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 20:05:25,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 20:05:25,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:25" (1/1) ... [2019-11-19 20:05:25,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a21789a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:25, skipping insertion in model container [2019-11-19 20:05:25,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:25" (1/1) ... [2019-11-19 20:05:25,883 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 20:05:25,948 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 20:05:26,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:05:26,463 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 20:05:26,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:05:26,600 INFO L192 MainTranslator]: Completed translation [2019-11-19 20:05:26,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:26 WrapperNode [2019-11-19 20:05:26,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 20:05:26,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 20:05:26,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 20:05:26,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 20:05:26,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:26" (1/1) ... [2019-11-19 20:05:26,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:26" (1/1) ... [2019-11-19 20:05:26,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 20:05:26,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 20:05:26,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 20:05:26,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 20:05:26,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:26" (1/1) ... [2019-11-19 20:05:26,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:26" (1/1) ... [2019-11-19 20:05:26,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:26" (1/1) ... [2019-11-19 20:05:26,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:26" (1/1) ... [2019-11-19 20:05:26,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:26" (1/1) ... [2019-11-19 20:05:26,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:26" (1/1) ... [2019-11-19 20:05:26,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:26" (1/1) ... [2019-11-19 20:05:26,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 20:05:26,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 20:05:26,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 20:05:26,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 20:05:26,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:26" (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 [2019-11-19 20:05:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 20:05:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 20:05:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 20:05:26,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 20:05:27,680 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 20:05:27,680 INFO L285 CfgBuilder]: Removed 170 assume(true) statements. [2019-11-19 20:05:27,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:27 BoogieIcfgContainer [2019-11-19 20:05:27,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 20:05:27,684 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 20:05:27,684 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 20:05:27,688 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 20:05:27,689 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:05:27,689 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:05:25" (1/3) ... [2019-11-19 20:05:27,691 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@272a99c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:05:27, skipping insertion in model container [2019-11-19 20:05:27,691 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:05:27,691 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:26" (2/3) ... [2019-11-19 20:05:27,692 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@272a99c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:05:27, skipping insertion in model container [2019-11-19 20:05:27,693 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:05:27,693 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:27" (3/3) ... [2019-11-19 20:05:27,695 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product49.cil.c [2019-11-19 20:05:27,743 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 20:05:27,743 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 20:05:27,743 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 20:05:27,743 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 20:05:27,743 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 20:05:27,744 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 20:05:27,744 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 20:05:27,744 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 20:05:27,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 123 states. [2019-11-19 20:05:27,792 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2019-11-19 20:05:27,792 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:27,792 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:27,802 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:27,802 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:27,802 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 20:05:27,803 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 123 states. [2019-11-19 20:05:27,811 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2019-11-19 20:05:27,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:27,811 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:27,813 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:27,813 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:27,819 INFO L794 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(77, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(101, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(116, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(104, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string30.base, #t~string30.offset, 1);call write~init~int(82, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(73, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(84, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 4 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(75, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0; 15#L-1true havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 69#L556true 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; 74#L564true main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 76#L520true assume 0 != main_~tmp~5; 110#L492true ~switchedOnBeforeTS~0 := 0; 83#L941true havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 32#L962-1true [2019-11-19 20:05:27,820 INFO L796 eck$LassoCheckResult]: Loop: 32#L962-1true assume !false; 17#L266true assume test_~splverifierCounter~0 < 4; 77#L267true test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 72#L275true assume !(0 != test_~tmp~4); 70#L275-1true test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 11#L285true assume !(0 != test_~tmp___0~2); 7#L285-1true test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 51#L295true assume 0 != test_~tmp___2~0; 41#L301-2true havoc __utac_acc__Specification5_spec__2_#t~ret72;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 102#L173true __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 30#L951true assume !(0 != ~pumpRunning~0); 13#L62true assume !(0 != ~systemActive~0); 59#L69true havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 84#L396true __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 29#L962true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 32#L962-1true [2019-11-19 20:05:27,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:27,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-19 20:05:27,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:27,838 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035453838] [2019-11-19 20:05:27,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:28,652 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:28,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:28,654 INFO L82 PathProgramCache]: Analyzing trace with hash 96105516, now seen corresponding path program 1 times [2019-11-19 20:05:28,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:28,656 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210145573] [2019-11-19 20:05:28,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:28,687 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:28,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:28,691 INFO L82 PathProgramCache]: Analyzing trace with hash 2030130726, now seen corresponding path program 1 times [2019-11-19 20:05:28,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:28,693 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906078884] [2019-11-19 20:05:28,693 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:28,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:28,881 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906078884] [2019-11-19 20:05:28,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:05:28,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 20:05:28,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191316679] [2019-11-19 20:05:29,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:05:29,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 20:05:29,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-19 20:05:29,040 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 6 states. [2019-11-19 20:05:29,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:05:29,206 INFO L93 Difference]: Finished difference Result 123 states and 175 transitions. [2019-11-19 20:05:29,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 20:05:29,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 175 transitions. [2019-11-19 20:05:29,214 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2019-11-19 20:05:29,221 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 116 states and 168 transitions. [2019-11-19 20:05:29,223 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 116 [2019-11-19 20:05:29,226 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 116 [2019-11-19 20:05:29,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 168 transitions. [2019-11-19 20:05:29,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:05:29,229 INFO L688 BuchiCegarLoop]: Abstraction has 116 states and 168 transitions. [2019-11-19 20:05:29,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 168 transitions. [2019-11-19 20:05:29,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2019-11-19 20:05:29,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-11-19 20:05:29,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 168 transitions. [2019-11-19 20:05:29,286 INFO L711 BuchiCegarLoop]: Abstraction has 116 states and 168 transitions. [2019-11-19 20:05:29,287 INFO L591 BuchiCegarLoop]: Abstraction has 116 states and 168 transitions. [2019-11-19 20:05:29,287 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 20:05:29,287 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 168 transitions. [2019-11-19 20:05:29,290 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2019-11-19 20:05:29,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:29,291 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:29,292 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:29,292 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:29,292 INFO L794 eck$LassoCheckResult]: Stem: 357#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(77, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(101, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(116, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(104, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string30.base, #t~string30.offset, 1);call write~init~int(82, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(73, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(84, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 4 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(75, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0; 287#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 288#L556 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; 353#L564 main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 356#L520 assume 0 != main_~tmp~5; 358#L492 ~switchedOnBeforeTS~0 := 0; 364#L941 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 315#L962-1 [2019-11-19 20:05:29,293 INFO L796 eck$LassoCheckResult]: Loop: 315#L962-1 assume !false; 291#L266 assume test_~splverifierCounter~0 < 4; 292#L267 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 354#L275 assume !(0 != test_~tmp~4); 342#L275-1 test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 277#L285 assume !(0 != test_~tmp___0~2); 271#L285-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 272#L295 assume 0 != test_~tmp___2~0; 326#L301-2 havoc __utac_acc__Specification5_spec__2_#t~ret72;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 327#L173 __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 316#L951 assume !(0 != ~pumpRunning~0); 285#L62 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 286#L120 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 310#L94-1 assume !(0 == ~pumpRunning~0); 304#L69 havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 345#L396 __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 313#L962 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 315#L962-1 [2019-11-19 20:05:29,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:29,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-19 20:05:29,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:29,294 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113974296] [2019-11-19 20:05:29,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:29,582 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:29,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:29,583 INFO L82 PathProgramCache]: Analyzing trace with hash -477603702, now seen corresponding path program 1 times [2019-11-19 20:05:29,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:29,584 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918909984] [2019-11-19 20:05:29,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:29,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:29,599 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918909984] [2019-11-19 20:05:29,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:05:29,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 20:05:29,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181704386] [2019-11-19 20:05:29,600 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 20:05:29,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:05:29,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 20:05:29,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 20:05:29,601 INFO L87 Difference]: Start difference. First operand 116 states and 168 transitions. cyclomatic complexity: 54 Second operand 3 states. [2019-11-19 20:05:29,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:05:29,717 INFO L93 Difference]: Finished difference Result 165 states and 227 transitions. [2019-11-19 20:05:29,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 20:05:29,718 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 165 states and 227 transitions. [2019-11-19 20:05:29,721 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2019-11-19 20:05:29,724 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 165 states to 165 states and 227 transitions. [2019-11-19 20:05:29,724 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 165 [2019-11-19 20:05:29,725 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 165 [2019-11-19 20:05:29,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 165 states and 227 transitions. [2019-11-19 20:05:29,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:05:29,727 INFO L688 BuchiCegarLoop]: Abstraction has 165 states and 227 transitions. [2019-11-19 20:05:29,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states and 227 transitions. [2019-11-19 20:05:29,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2019-11-19 20:05:29,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2019-11-19 20:05:29,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 227 transitions. [2019-11-19 20:05:29,737 INFO L711 BuchiCegarLoop]: Abstraction has 165 states and 227 transitions. [2019-11-19 20:05:29,737 INFO L591 BuchiCegarLoop]: Abstraction has 165 states and 227 transitions. [2019-11-19 20:05:29,737 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 20:05:29,738 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 165 states and 227 transitions. [2019-11-19 20:05:29,739 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2019-11-19 20:05:29,740 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:29,740 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:29,741 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:29,741 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, 1] [2019-11-19 20:05:29,741 INFO L794 eck$LassoCheckResult]: Stem: 644#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(77, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(101, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(116, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(104, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string30.base, #t~string30.offset, 1);call write~init~int(82, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(73, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(84, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 4 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(75, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0; 574#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 575#L556 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; 640#L564 main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 643#L520 assume 0 != main_~tmp~5; 645#L492 ~switchedOnBeforeTS~0 := 0; 653#L941 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 601#L962-1 [2019-11-19 20:05:29,742 INFO L796 eck$LassoCheckResult]: Loop: 601#L962-1 assume !false; 579#L266 assume test_~splverifierCounter~0 < 4; 580#L267 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 641#L275 assume !(0 != test_~tmp~4); 628#L275-1 test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 564#L285 assume !(0 != test_~tmp___0~2); 560#L285-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 561#L295 assume 0 != test_~tmp___2~0; 609#L301-2 havoc __utac_acc__Specification5_spec__2_#t~ret72;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 610#L173 __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 602#L951 assume !(0 != ~pumpRunning~0); 572#L62 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 573#L120 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 597#L94-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 624#L404-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 555#L409-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 556#L222-3 assume !(0 != isHighWaterLevel_~tmp~2);isHighWaterLevel_~tmp___0~0 := 1; 667#L222-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 664#L228-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 590#L98-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 592#L69 havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 632#L396 __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 599#L962 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 601#L962-1 [2019-11-19 20:05:29,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:29,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-19 20:05:29,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:29,743 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349524883] [2019-11-19 20:05:29,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:30,023 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:30,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:30,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1457587912, now seen corresponding path program 1 times [2019-11-19 20:05:30,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:30,025 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346393133] [2019-11-19 20:05:30,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:30,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:30,073 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346393133] [2019-11-19 20:05:30,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:05:30,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 20:05:30,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134687940] [2019-11-19 20:05:30,074 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 20:05:30,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:05:30,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 20:05:30,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 20:05:30,077 INFO L87 Difference]: Start difference. First operand 165 states and 227 transitions. cyclomatic complexity: 64 Second operand 4 states. [2019-11-19 20:05:30,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:05:30,245 INFO L93 Difference]: Finished difference Result 317 states and 429 transitions. [2019-11-19 20:05:30,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 20:05:30,246 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 317 states and 429 transitions. [2019-11-19 20:05:30,254 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 224 [2019-11-19 20:05:30,262 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 317 states to 317 states and 429 transitions. [2019-11-19 20:05:30,263 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 317 [2019-11-19 20:05:30,265 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 317 [2019-11-19 20:05:30,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 317 states and 429 transitions. [2019-11-19 20:05:30,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:05:30,274 INFO L688 BuchiCegarLoop]: Abstraction has 317 states and 429 transitions. [2019-11-19 20:05:30,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states and 429 transitions. [2019-11-19 20:05:30,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 177. [2019-11-19 20:05:30,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2019-11-19 20:05:30,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 239 transitions. [2019-11-19 20:05:30,302 INFO L711 BuchiCegarLoop]: Abstraction has 177 states and 239 transitions. [2019-11-19 20:05:30,302 INFO L591 BuchiCegarLoop]: Abstraction has 177 states and 239 transitions. [2019-11-19 20:05:30,303 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 20:05:30,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 239 transitions. [2019-11-19 20:05:30,306 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2019-11-19 20:05:30,307 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:30,308 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:30,309 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:30,310 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, 1] [2019-11-19 20:05:30,312 INFO L794 eck$LassoCheckResult]: Stem: 1137#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(77, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(101, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(116, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(104, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string30.base, #t~string30.offset, 1);call write~init~int(82, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(73, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(84, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 4 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(75, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0; 1066#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 1067#L556 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; 1133#L564 main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 1136#L520 assume 0 != main_~tmp~5; 1138#L492 ~switchedOnBeforeTS~0 := 0; 1146#L941 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1093#L962-1 [2019-11-19 20:05:30,312 INFO L796 eck$LassoCheckResult]: Loop: 1093#L962-1 assume !false; 1071#L266 assume test_~splverifierCounter~0 < 4; 1072#L267 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 1134#L275 assume !(0 != test_~tmp~4); 1120#L275-1 test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 1056#L285 assume !(0 != test_~tmp___0~2); 1050#L285-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 1051#L295 assume 0 != test_~tmp___2~0; 1101#L301-2 havoc __utac_acc__Specification5_spec__2_#t~ret72;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1102#L173 __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 1094#L951 assume !(0 != ~pumpRunning~0); 1062#L62 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1063#L120 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1089#L94-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1116#L404-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1154#L409-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 1167#L222-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1168#L222-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1162#L228-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 1082#L98-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1084#L69 havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 1124#L396 __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 1091#L962 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 1093#L962-1 [2019-11-19 20:05:30,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:30,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-19 20:05:30,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:30,314 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43807056] [2019-11-19 20:05:30,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:30,737 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:30,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:30,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1062372022, now seen corresponding path program 1 times [2019-11-19 20:05:30,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:30,739 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706499172] [2019-11-19 20:05:30,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:30,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:30,785 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706499172] [2019-11-19 20:05:30,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:05:30,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 20:05:30,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007696043] [2019-11-19 20:05:30,786 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 20:05:30,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:05:30,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 20:05:30,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 20:05:30,789 INFO L87 Difference]: Start difference. First operand 177 states and 239 transitions. cyclomatic complexity: 64 Second operand 5 states. [2019-11-19 20:05:31,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:05:31,134 INFO L93 Difference]: Finished difference Result 457 states and 605 transitions. [2019-11-19 20:05:31,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 20:05:31,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 457 states and 605 transitions. [2019-11-19 20:05:31,143 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 295 [2019-11-19 20:05:31,148 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 457 states to 457 states and 605 transitions. [2019-11-19 20:05:31,148 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 457 [2019-11-19 20:05:31,150 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 457 [2019-11-19 20:05:31,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 457 states and 605 transitions. [2019-11-19 20:05:31,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:05:31,152 INFO L688 BuchiCegarLoop]: Abstraction has 457 states and 605 transitions. [2019-11-19 20:05:31,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states and 605 transitions. [2019-11-19 20:05:31,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 323. [2019-11-19 20:05:31,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2019-11-19 20:05:31,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 427 transitions. [2019-11-19 20:05:31,192 INFO L711 BuchiCegarLoop]: Abstraction has 323 states and 427 transitions. [2019-11-19 20:05:31,193 INFO L591 BuchiCegarLoop]: Abstraction has 323 states and 427 transitions. [2019-11-19 20:05:31,193 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-19 20:05:31,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 323 states and 427 transitions. [2019-11-19 20:05:31,199 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 228 [2019-11-19 20:05:31,199 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:31,200 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:31,203 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:31,203 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, 1, 1, 1] [2019-11-19 20:05:31,204 INFO L794 eck$LassoCheckResult]: Stem: 1790#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(77, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(101, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(116, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(104, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string30.base, #t~string30.offset, 1);call write~init~int(82, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(73, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(84, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 4 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(75, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0; 1716#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 1717#L556 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; 1783#L564 main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 1789#L520 assume 0 != main_~tmp~5; 1791#L492 ~switchedOnBeforeTS~0 := 0; 1800#L941 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1744#L962-1 [2019-11-19 20:05:31,205 INFO L796 eck$LassoCheckResult]: Loop: 1744#L962-1 assume !false; 1721#L266 assume test_~splverifierCounter~0 < 4; 1722#L267 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 1792#L275 assume !(0 != test_~tmp~4); 2015#L275-1 test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 1706#L285 assume !(0 != test_~tmp___0~2); 1700#L285-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 1701#L295 assume 0 != test_~tmp___2~0; 1755#L301-2 havoc __utac_acc__Specification5_spec__2_#t~ret72;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2010#L173 __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 1743#L951 assume !(0 != ~pumpRunning~0); 1712#L62 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1713#L120 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1739#L94-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1767#L404-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1807#L409-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 1982#L222-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1981#L222-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1813#L228-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 1732#L98-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1734#L69 havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 1775#L396 __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 1741#L962 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1742#L173-1 __utac_acc__Specification5_spec__3_#t~ret74 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret74;havoc __utac_acc__Specification5_spec__3_#t~ret74; 1793#L966 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 1744#L962-1 [2019-11-19 20:05:31,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:31,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 5 times [2019-11-19 20:05:31,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:31,213 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281147602] [2019-11-19 20:05:31,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:31,529 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:31,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:31,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1262715471, now seen corresponding path program 1 times [2019-11-19 20:05:31,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:31,531 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984852955] [2019-11-19 20:05:31,539 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:31,558 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:31,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:31,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1326141653, now seen corresponding path program 1 times [2019-11-19 20:05:31,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:31,560 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444069696] [2019-11-19 20:05:31,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:31,877 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:32,061 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-11-19 20:05:55,918 WARN L191 SmtUtils]: Spent 23.76 s on a formula simplification. DAG size of input: 455 DAG size of output: 453 [2019-11-19 20:06:06,937 WARN L191 SmtUtils]: Spent 11.00 s on a formula simplification that was a NOOP. DAG size: 451 [2019-11-19 20:06:07,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:06:07 BoogieIcfgContainer [2019-11-19 20:06:07,029 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 20:06:07,029 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 20:06:07,029 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 20:06:07,030 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 20:06:07,030 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:27" (3/4) ... [2019-11-19 20:06:07,033 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 20:06:07,112 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 20:06:07,112 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 20:06:07,114 INFO L168 Benchmark]: Toolchain (without parser) took 41250.09 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 347.6 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -156.4 MB). Peak memory consumption was 191.2 MB. Max. memory is 11.5 GB. [2019-11-19 20:06:07,115 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:06:07,115 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -162.7 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2019-11-19 20:06:07,116 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.35 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. [2019-11-19 20:06:07,116 INFO L168 Benchmark]: Boogie Preprocessor took 53.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:06:07,117 INFO L168 Benchmark]: RCFGBuilder took 954.84 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: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. [2019-11-19 20:06:07,118 INFO L168 Benchmark]: BuchiAutomizer took 39344.94 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 211.3 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -81.1 MB). Peak memory consumption was 401.1 MB. Max. memory is 11.5 GB. [2019-11-19 20:06:07,118 INFO L168 Benchmark]: Witness Printer took 83.25 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2019-11-19 20:06:07,121 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 735.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -162.7 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 73.35 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 53.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 954.84 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: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 39344.94 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 211.3 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -81.1 MB). Peak memory consumption was 401.1 MB. Max. memory is 11.5 GB. * Witness Printer took 83.25 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 323 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 39.2s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 38.0s. Construction of modules took 0.4s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 274 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 323 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 757 SDtfs, 1415 SDslu, 874 SDs, 0 SdLazy, 200 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 265]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=0} State at position 1 is {NULL=0, NULL=0, NULL=-14, NULL=-11, NULL=0, NULL=0, retValue_acc=0, NULL=-18, NULL=-15, methaneLevelCritical=0, NULL=-22, retValue_acc=1, tmp=1, tmp___0=0, NULL=0, tmp=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=-24, NULL=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@791b6d51=0, NULL=0, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52f8ec4=0, NULL=-12, cleanupTimeShifts=4, NULL=-3, switchedOnBeforeTS=0, NULL=-25, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@318ed13e=0, \result=0, NULL=0, systemActive=1, waterLevel=1, NULL=-2, \result=1, NULL=0, NULL=0, NULL=0, NULL=-21, NULL=0, NULL=-8, \result=0, NULL=0, NULL=-16, NULL=0, NULL=0, NULL=0, NULL=0, NULL=-9, \result=1, NULL=-4, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3115b993=0, NULL=-17, \result=0, retValue_acc=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1bdbc8d2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30e5e705=0, NULL=-23, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e7f4990=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5afdf50f=68, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c1b71a1=0, \result=1, NULL=-19, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b31bc44=0, tmp=1, tmp___2=68, tmp___0=0, NULL=-1, NULL=-7, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=-10, NULL=-6, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8d6798f=0, head=0, retValue_acc=0, NULL=0, NULL=0, NULL=-5, NULL=-13, NULL=-20} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int pumpRunning = 0; [L51] int systemActive = 1; [L321] int waterLevel = 1; [L322] int methaneLevelCritical = 0; [L433] int cleanupTimeShifts = 4; [L738] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L935] int switchedOnBeforeTS ; [L511] int retValue_acc ; [L512] int tmp ; [L560] int retValue_acc ; [L563] retValue_acc = 1 [L564] return (retValue_acc); [L518] tmp = valid_product() [L520] COND TRUE \read(tmp) [L940] switchedOnBeforeTS = 0 [L256] int splverifierCounter ; [L257] int tmp ; [L258] int tmp___0 ; [L259] int tmp___1 ; [L260] int tmp___2 ; [L263] splverifierCounter = 0 Loop: [L265] COND TRUE 1 [L267] COND TRUE splverifierCounter < 4 [L273] tmp = __VERIFIER_nondet_int() [L275] COND FALSE !(\read(tmp)) [L283] tmp___0 = __VERIFIER_nondet_int() [L285] COND FALSE !(\read(tmp___0)) [L293] tmp___2 = __VERIFIER_nondet_int() [L295] COND TRUE \read(tmp___2) [L169] int retValue_acc ; [L172] retValue_acc = pumpRunning [L173] return (retValue_acc); [L949] switchedOnBeforeTS = isPumpRunning() [L62] COND FALSE !(\read(pumpRunning)) [L69] COND TRUE \read(systemActive) [L117] int tmp ; [L120] COND FALSE !(\read(pumpRunning)) [L91] int tmp ; [L94] COND TRUE ! pumpRunning [L214] int retValue_acc ; [L215] int tmp ; [L216] int tmp___0 ; [L401] int retValue_acc ; [L404] COND TRUE waterLevel < 2 [L405] retValue_acc = 1 [L406] return (retValue_acc); [L220] tmp = isHighWaterSensorDry() [L222] COND TRUE \read(tmp) [L223] tmp___0 = 0 [L227] retValue_acc = tmp___0 [L228] return (retValue_acc); [L96] tmp = isHighWaterLevel() [L98] COND FALSE !(\read(tmp)) [L955] int tmp ; [L956] int tmp___0 ; [L392] int retValue_acc ; [L395] retValue_acc = waterLevel [L396] return (retValue_acc); [L960] tmp = getWaterLevel() [L962] COND TRUE tmp != 2 [L169] int retValue_acc ; [L172] retValue_acc = pumpRunning [L173] return (retValue_acc); [L964] tmp___0 = isPumpRunning() [L966] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...