./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product48.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 5f57b6f2bb2bb4fa43dac897ff23a28c21886d7b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 02:54:18,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 02:54:18,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 02:54:18,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 02:54:18,381 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 02:54:18,383 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 02:54:18,384 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 02:54:18,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 02:54:18,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 02:54:18,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 02:54:18,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 02:54:18,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 02:54:18,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 02:54:18,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 02:54:18,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 02:54:18,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 02:54:18,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 02:54:18,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 02:54:18,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 02:54:18,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 02:54:18,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 02:54:18,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 02:54:18,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 02:54:18,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 02:54:18,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 02:54:18,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 02:54:18,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 02:54:18,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 02:54:18,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 02:54:18,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 02:54:18,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 02:54:18,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 02:54:18,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 02:54:18,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 02:54:18,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 02:54:18,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 02:54:18,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 02:54:18,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 02:54:18,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 02:54:18,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 02:54:18,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 02:54:18,418 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 02:54:18,439 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 02:54:18,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 02:54:18,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 02:54:18,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 02:54:18,441 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 02:54:18,441 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 02:54:18,442 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 02:54:18,442 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 02:54:18,442 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 02:54:18,442 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 02:54:18,442 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 02:54:18,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 02:54:18,443 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 02:54:18,443 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 02:54:18,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 02:54:18,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 02:54:18,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 02:54:18,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 02:54:18,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 02:54:18,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 02:54:18,445 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 02:54:18,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 02:54:18,445 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 02:54:18,445 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 02:54:18,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 02:54:18,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 02:54:18,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 02:54:18,446 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 02:54:18,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 02:54:18,447 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 02:54:18,447 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 02:54:18,447 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 02:54:18,448 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 02:54:18,448 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 -> 5f57b6f2bb2bb4fa43dac897ff23a28c21886d7b [2020-07-29 02:54:18,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 02:54:18,809 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 02:54:18,813 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 02:54:18,815 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 02:54:18,816 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 02:54:18,817 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2020-07-29 02:54:18,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/516b4c9a3/85fcfc49d3f348e695b546d55a4eb879/FLAG7af47b4cd [2020-07-29 02:54:19,350 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 02:54:19,351 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2020-07-29 02:54:19,362 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/516b4c9a3/85fcfc49d3f348e695b546d55a4eb879/FLAG7af47b4cd [2020-07-29 02:54:19,698 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/516b4c9a3/85fcfc49d3f348e695b546d55a4eb879 [2020-07-29 02:54:19,703 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 02:54:19,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 02:54:19,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 02:54:19,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 02:54:19,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 02:54:19,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:54:19" (1/1) ... [2020-07-29 02:54:19,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b98b30c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:19, skipping insertion in model container [2020-07-29 02:54:19,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:54:19" (1/1) ... [2020-07-29 02:54:19,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 02:54:19,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 02:54:20,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:54:20,333 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 02:54:20,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:54:20,520 INFO L208 MainTranslator]: Completed translation [2020-07-29 02:54:20,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:20 WrapperNode [2020-07-29 02:54:20,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 02:54:20,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 02:54:20,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 02:54:20,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 02:54:20,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:20" (1/1) ... [2020-07-29 02:54:20,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:20" (1/1) ... [2020-07-29 02:54:20,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 02:54:20,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 02:54:20,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 02:54:20,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 02:54:20,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:20" (1/1) ... [2020-07-29 02:54:20,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:20" (1/1) ... [2020-07-29 02:54:20,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:20" (1/1) ... [2020-07-29 02:54:20,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:20" (1/1) ... [2020-07-29 02:54:20,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:20" (1/1) ... [2020-07-29 02:54:20,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:20" (1/1) ... [2020-07-29 02:54:20,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:20" (1/1) ... [2020-07-29 02:54:20,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 02:54:20,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 02:54:20,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 02:54:20,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 02:54:20,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:54:20,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 02:54:20,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-29 02:54:20,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 02:54:20,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 02:54:22,330 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 02:54:22,331 INFO L295 CfgBuilder]: Removed 198 assume(true) statements. [2020-07-29 02:54:22,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:54:22 BoogieIcfgContainer [2020-07-29 02:54:22,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 02:54:22,340 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 02:54:22,341 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 02:54:22,345 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 02:54:22,346 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:54:22,346 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 02:54:19" (1/3) ... [2020-07-29 02:54:22,348 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46032fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:54:22, skipping insertion in model container [2020-07-29 02:54:22,348 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:54:22,348 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:54:20" (2/3) ... [2020-07-29 02:54:22,349 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46032fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:54:22, skipping insertion in model container [2020-07-29 02:54:22,349 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:54:22,349 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:54:22" (3/3) ... [2020-07-29 02:54:22,351 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product48.cil.c [2020-07-29 02:54:22,403 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 02:54:22,404 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 02:54:22,404 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 02:54:22,405 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 02:54:22,405 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 02:54:22,406 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 02:54:22,406 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 02:54:22,406 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 02:54:22,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 128 states. [2020-07-29 02:54:22,485 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2020-07-29 02:54:22,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:54:22,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:54:22,493 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:54:22,493 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:54:22,493 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 02:54:22,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 128 states. [2020-07-29 02:54:22,509 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2020-07-29 02:54:22,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:54:22,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:54:22,510 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:54:22,511 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:54:22,517 INFO L794 eck$LassoCheckResult]: Stem: 89#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(30);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(9);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(21);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(30);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(9);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(25);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 16#L-1true havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 37#L959true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 38#L967true main_#t~ret37 := valid_product_#res;main_~tmp~4 := main_#t~ret37;havoc main_#t~ret37; 81#L534true assume 0 != main_~tmp~4; 51#L507true havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 11#L51-1true [2020-07-29 02:54:22,518 INFO L796 eck$LassoCheckResult]: Loop: 11#L51-1true assume !false; 39#L879true assume test_~splverifierCounter~0 < 4; 129#L880true test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 5#L888true assume !(0 != test_~tmp~9); 8#L888-1true test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 42#L898true assume !(0 != test_~tmp___0~2); 43#L898-1true test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 102#L908true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 111#L916-1true assume !(0 != ~pumpRunning~0); 17#L563true assume !(0 != ~systemActive~0); 77#L570true havoc __utac_acc__Specification4_spec__1_#t~ret0, __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 27#L849true __utac_acc__Specification4_spec__1_#t~ret0 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret0;havoc __utac_acc__Specification4_spec__1_#t~ret0; 14#L51true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 11#L51-1true [2020-07-29 02:54:22,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:54:22,526 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-07-29 02:54:22,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:54:22,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461887852] [2020-07-29 02:54:22,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:54:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:22,826 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:22,935 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:22,982 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:54:22,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:54:22,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1669770356, now seen corresponding path program 1 times [2020-07-29 02:54:22,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:54:22,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982543136] [2020-07-29 02:54:22,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:54:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:54:23,066 INFO L280 TraceCheckUtils]: 0: Hoare triple {134#true} assume !false; {134#true} is VALID [2020-07-29 02:54:23,066 INFO L280 TraceCheckUtils]: 1: Hoare triple {134#true} assume test_~splverifierCounter~0 < 4; {134#true} is VALID [2020-07-29 02:54:23,067 INFO L280 TraceCheckUtils]: 2: Hoare triple {134#true} test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; {134#true} is VALID [2020-07-29 02:54:23,067 INFO L280 TraceCheckUtils]: 3: Hoare triple {134#true} assume !(0 != test_~tmp~9); {134#true} is VALID [2020-07-29 02:54:23,068 INFO L280 TraceCheckUtils]: 4: Hoare triple {134#true} test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; {134#true} is VALID [2020-07-29 02:54:23,068 INFO L280 TraceCheckUtils]: 5: Hoare triple {134#true} assume !(0 != test_~tmp___0~2); {134#true} is VALID [2020-07-29 02:54:23,069 INFO L280 TraceCheckUtils]: 6: Hoare triple {134#true} test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; {134#true} is VALID [2020-07-29 02:54:23,071 INFO L280 TraceCheckUtils]: 7: Hoare triple {134#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {136#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:54:23,072 INFO L280 TraceCheckUtils]: 8: Hoare triple {136#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {136#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:54:23,073 INFO L280 TraceCheckUtils]: 9: Hoare triple {136#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {135#false} is VALID [2020-07-29 02:54:23,074 INFO L280 TraceCheckUtils]: 10: Hoare triple {135#false} havoc __utac_acc__Specification4_spec__1_#t~ret0, __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; {135#false} is VALID [2020-07-29 02:54:23,074 INFO L280 TraceCheckUtils]: 11: Hoare triple {135#false} __utac_acc__Specification4_spec__1_#t~ret0 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret0;havoc __utac_acc__Specification4_spec__1_#t~ret0; {135#false} is VALID [2020-07-29 02:54:23,075 INFO L280 TraceCheckUtils]: 12: Hoare triple {135#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); {135#false} is VALID [2020-07-29 02:54:23,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:54:23,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982543136] [2020-07-29 02:54:23,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:54:23,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-29 02:54:23,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690449492] [2020-07-29 02:54:23,088 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-29 02:54:23,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:54:23,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 02:54:23,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 02:54:23,107 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 3 states. [2020-07-29 02:54:23,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:54:23,709 INFO L93 Difference]: Finished difference Result 250 states and 360 transitions. [2020-07-29 02:54:23,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 02:54:23,710 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 02:54:23,731 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:54:23,733 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 250 states and 360 transitions. [2020-07-29 02:54:23,752 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 162 [2020-07-29 02:54:23,769 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 250 states to 236 states and 345 transitions. [2020-07-29 02:54:23,770 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 236 [2020-07-29 02:54:23,771 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 236 [2020-07-29 02:54:23,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 236 states and 345 transitions. [2020-07-29 02:54:23,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:54:23,774 INFO L688 BuchiCegarLoop]: Abstraction has 236 states and 345 transitions. [2020-07-29 02:54:23,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states and 345 transitions. [2020-07-29 02:54:23,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 234. [2020-07-29 02:54:23,821 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:54:23,822 INFO L82 GeneralOperation]: Start isEquivalent. First operand 236 states and 345 transitions. Second operand 234 states. [2020-07-29 02:54:23,822 INFO L74 IsIncluded]: Start isIncluded. First operand 236 states and 345 transitions. Second operand 234 states. [2020-07-29 02:54:23,824 INFO L87 Difference]: Start difference. First operand 236 states and 345 transitions. Second operand 234 states. [2020-07-29 02:54:23,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:54:23,838 INFO L93 Difference]: Finished difference Result 236 states and 345 transitions. [2020-07-29 02:54:23,839 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 345 transitions. [2020-07-29 02:54:23,842 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:54:23,842 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:54:23,843 INFO L74 IsIncluded]: Start isIncluded. First operand 234 states. Second operand 236 states and 345 transitions. [2020-07-29 02:54:23,843 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 236 states and 345 transitions. [2020-07-29 02:54:23,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:54:23,856 INFO L93 Difference]: Finished difference Result 236 states and 345 transitions. [2020-07-29 02:54:23,856 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 345 transitions. [2020-07-29 02:54:23,858 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:54:23,858 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:54:23,858 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:54:23,859 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:54:23,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-07-29 02:54:23,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 342 transitions. [2020-07-29 02:54:23,872 INFO L711 BuchiCegarLoop]: Abstraction has 234 states and 342 transitions. [2020-07-29 02:54:23,873 INFO L591 BuchiCegarLoop]: Abstraction has 234 states and 342 transitions. [2020-07-29 02:54:23,873 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 02:54:23,873 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 234 states and 342 transitions. [2020-07-29 02:54:23,876 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 160 [2020-07-29 02:54:23,876 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:54:23,876 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:54:23,877 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:54:23,877 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:54:23,878 INFO L794 eck$LassoCheckResult]: Stem: 496#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(30);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(9);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(21);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(30);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(9);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(25);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 419#L-1 havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 420#L959 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 446#L967 main_#t~ret37 := valid_product_#res;main_~tmp~4 := main_#t~ret37;havoc main_#t~ret37; 447#L534 assume 0 != main_~tmp~4; 463#L507 havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 407#L51-1 [2020-07-29 02:54:23,878 INFO L796 eck$LassoCheckResult]: Loop: 407#L51-1 assume !false; 408#L879 assume test_~splverifierCounter~0 < 4; 537#L880 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 536#L888 assume !(0 != test_~tmp~9); 534#L888-1 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 533#L898 assume !(0 != test_~tmp___0~2); 531#L898-1 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 508#L908 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 509#L916-1 assume !(0 != ~pumpRunning~0); 421#L563 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 395#L621 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret38, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 397#L595-1 assume !(0 == ~pumpRunning~0); 569#L570 havoc __utac_acc__Specification4_spec__1_#t~ret0, __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 568#L849 __utac_acc__Specification4_spec__1_#t~ret0 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret0;havoc __utac_acc__Specification4_spec__1_#t~ret0; 414#L51 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 407#L51-1 [2020-07-29 02:54:23,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:54:23,879 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-07-29 02:54:23,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:54:23,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559611912] [2020-07-29 02:54:23,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:54:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:23,933 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:23,982 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:23,999 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:54:23,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:54:23,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1411824402, now seen corresponding path program 1 times [2020-07-29 02:54:24,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:54:24,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364567381] [2020-07-29 02:54:24,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:54:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:54:24,035 INFO L280 TraceCheckUtils]: 0: Hoare triple {1098#true} assume !false; {1098#true} is VALID [2020-07-29 02:54:24,035 INFO L280 TraceCheckUtils]: 1: Hoare triple {1098#true} assume test_~splverifierCounter~0 < 4; {1098#true} is VALID [2020-07-29 02:54:24,035 INFO L280 TraceCheckUtils]: 2: Hoare triple {1098#true} test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; {1098#true} is VALID [2020-07-29 02:54:24,036 INFO L280 TraceCheckUtils]: 3: Hoare triple {1098#true} assume !(0 != test_~tmp~9); {1098#true} is VALID [2020-07-29 02:54:24,036 INFO L280 TraceCheckUtils]: 4: Hoare triple {1098#true} test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; {1098#true} is VALID [2020-07-29 02:54:24,037 INFO L280 TraceCheckUtils]: 5: Hoare triple {1098#true} assume !(0 != test_~tmp___0~2); {1098#true} is VALID [2020-07-29 02:54:24,037 INFO L280 TraceCheckUtils]: 6: Hoare triple {1098#true} test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; {1098#true} is VALID [2020-07-29 02:54:24,037 INFO L280 TraceCheckUtils]: 7: Hoare triple {1098#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {1098#true} is VALID [2020-07-29 02:54:24,038 INFO L280 TraceCheckUtils]: 8: Hoare triple {1098#true} assume !(0 != ~pumpRunning~0); {1100#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 02:54:24,039 INFO L280 TraceCheckUtils]: 9: Hoare triple {1100#(= 0 ~pumpRunning~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; {1100#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 02:54:24,040 INFO L280 TraceCheckUtils]: 10: Hoare triple {1100#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret38, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; {1100#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 02:54:24,041 INFO L280 TraceCheckUtils]: 11: Hoare triple {1100#(= 0 ~pumpRunning~0)} assume !(0 == ~pumpRunning~0); {1099#false} is VALID [2020-07-29 02:54:24,041 INFO L280 TraceCheckUtils]: 12: Hoare triple {1099#false} havoc __utac_acc__Specification4_spec__1_#t~ret0, __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; {1099#false} is VALID [2020-07-29 02:54:24,042 INFO L280 TraceCheckUtils]: 13: Hoare triple {1099#false} __utac_acc__Specification4_spec__1_#t~ret0 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret0;havoc __utac_acc__Specification4_spec__1_#t~ret0; {1099#false} is VALID [2020-07-29 02:54:24,042 INFO L280 TraceCheckUtils]: 14: Hoare triple {1099#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); {1099#false} is VALID [2020-07-29 02:54:24,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:54:24,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364567381] [2020-07-29 02:54:24,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:54:24,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-29 02:54:24,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531492055] [2020-07-29 02:54:24,047 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-29 02:54:24,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:54:24,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 02:54:24,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 02:54:24,048 INFO L87 Difference]: Start difference. First operand 234 states and 342 transitions. cyclomatic complexity: 111 Second operand 3 states. [2020-07-29 02:54:24,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:54:24,552 INFO L93 Difference]: Finished difference Result 317 states and 442 transitions. [2020-07-29 02:54:24,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 02:54:24,553 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 02:54:24,570 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:54:24,571 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 317 states and 442 transitions. [2020-07-29 02:54:24,601 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 223 [2020-07-29 02:54:24,620 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 317 states to 317 states and 442 transitions. [2020-07-29 02:54:24,620 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 317 [2020-07-29 02:54:24,621 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 317 [2020-07-29 02:54:24,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 317 states and 442 transitions. [2020-07-29 02:54:24,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:54:24,623 INFO L688 BuchiCegarLoop]: Abstraction has 317 states and 442 transitions. [2020-07-29 02:54:24,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states and 442 transitions. [2020-07-29 02:54:24,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-29 02:54:24,636 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:54:24,637 INFO L82 GeneralOperation]: Start isEquivalent. First operand 317 states and 442 transitions. Second operand 317 states. [2020-07-29 02:54:24,637 INFO L74 IsIncluded]: Start isIncluded. First operand 317 states and 442 transitions. Second operand 317 states. [2020-07-29 02:54:24,637 INFO L87 Difference]: Start difference. First operand 317 states and 442 transitions. Second operand 317 states. [2020-07-29 02:54:24,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:54:24,655 INFO L93 Difference]: Finished difference Result 317 states and 442 transitions. [2020-07-29 02:54:24,655 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 442 transitions. [2020-07-29 02:54:24,660 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:54:24,660 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:54:24,660 INFO L74 IsIncluded]: Start isIncluded. First operand 317 states. Second operand 317 states and 442 transitions. [2020-07-29 02:54:24,661 INFO L87 Difference]: Start difference. First operand 317 states. Second operand 317 states and 442 transitions. [2020-07-29 02:54:24,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:54:24,674 INFO L93 Difference]: Finished difference Result 317 states and 442 transitions. [2020-07-29 02:54:24,674 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 442 transitions. [2020-07-29 02:54:24,675 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:54:24,675 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:54:24,675 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:54:24,675 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:54:24,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-29 02:54:24,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 442 transitions. [2020-07-29 02:54:24,692 INFO L711 BuchiCegarLoop]: Abstraction has 317 states and 442 transitions. [2020-07-29 02:54:24,692 INFO L591 BuchiCegarLoop]: Abstraction has 317 states and 442 transitions. [2020-07-29 02:54:24,692 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-29 02:54:24,693 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 317 states and 442 transitions. [2020-07-29 02:54:24,696 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 223 [2020-07-29 02:54:24,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:54:24,696 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:54:24,698 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:54:24,698 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] [2020-07-29 02:54:24,698 INFO L794 eck$LassoCheckResult]: Stem: 1532#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(30);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(9);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(21);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(30);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(9);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(25);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1449#L-1 havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 1450#L959 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1478#L967 main_#t~ret37 := valid_product_#res;main_~tmp~4 := main_#t~ret37;havoc main_#t~ret37; 1479#L534 assume 0 != main_~tmp~4; 1496#L507 havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1437#L51-1 [2020-07-29 02:54:24,698 INFO L796 eck$LassoCheckResult]: Loop: 1437#L51-1 assume !false; 1438#L879 assume test_~splverifierCounter~0 < 4; 1480#L880 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 1423#L888 assume !(0 != test_~tmp~9); 1425#L888-1 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 1483#L898 assume !(0 != test_~tmp___0~2); 1484#L898-1 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 1544#L908 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1545#L916-1 assume !(0 != ~pumpRunning~0); 1451#L563 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1452#L621 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret38, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 1623#L595-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 1635#L857-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~9 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 1634#L862-1 isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; 1549#L740-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 1550#L740-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1507#L746-1 processEnvironment__wrappee__methaneQuery_#t~ret38 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret38;havoc processEnvironment__wrappee__methaneQuery_#t~ret38; 1508#L599-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 1434#L570 havoc __utac_acc__Specification4_spec__1_#t~ret0, __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 1523#L849 __utac_acc__Specification4_spec__1_#t~ret0 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret0;havoc __utac_acc__Specification4_spec__1_#t~ret0; 1444#L51 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 1437#L51-1 [2020-07-29 02:54:24,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:54:24,699 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-07-29 02:54:24,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:54:24,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3234585] [2020-07-29 02:54:24,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:54:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:24,784 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:24,848 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:24,872 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:54:24,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:54:24,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1301686428, now seen corresponding path program 1 times [2020-07-29 02:54:24,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:54:24,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431984933] [2020-07-29 02:54:24,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:54:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:54:24,939 INFO L280 TraceCheckUtils]: 0: Hoare triple {2374#true} assume !false; {2374#true} is VALID [2020-07-29 02:54:24,940 INFO L280 TraceCheckUtils]: 1: Hoare triple {2374#true} assume test_~splverifierCounter~0 < 4; {2374#true} is VALID [2020-07-29 02:54:24,940 INFO L280 TraceCheckUtils]: 2: Hoare triple {2374#true} test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; {2374#true} is VALID [2020-07-29 02:54:24,940 INFO L280 TraceCheckUtils]: 3: Hoare triple {2374#true} assume !(0 != test_~tmp~9); {2374#true} is VALID [2020-07-29 02:54:24,941 INFO L280 TraceCheckUtils]: 4: Hoare triple {2374#true} test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; {2374#true} is VALID [2020-07-29 02:54:24,941 INFO L280 TraceCheckUtils]: 5: Hoare triple {2374#true} assume !(0 != test_~tmp___0~2); {2374#true} is VALID [2020-07-29 02:54:24,942 INFO L280 TraceCheckUtils]: 6: Hoare triple {2374#true} test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; {2374#true} is VALID [2020-07-29 02:54:24,942 INFO L280 TraceCheckUtils]: 7: Hoare triple {2374#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {2374#true} is VALID [2020-07-29 02:54:24,942 INFO L280 TraceCheckUtils]: 8: Hoare triple {2374#true} assume !(0 != ~pumpRunning~0); {2374#true} is VALID [2020-07-29 02:54:24,943 INFO L280 TraceCheckUtils]: 9: Hoare triple {2374#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; {2374#true} is VALID [2020-07-29 02:54:24,943 INFO L280 TraceCheckUtils]: 10: Hoare triple {2374#true} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret38, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; {2374#true} is VALID [2020-07-29 02:54:24,944 INFO L280 TraceCheckUtils]: 11: Hoare triple {2374#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; {2374#true} is VALID [2020-07-29 02:54:24,946 INFO L280 TraceCheckUtils]: 12: Hoare triple {2374#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~9 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; {2376#(= 0 |ULTIMATE.start_isHighWaterSensorDry_#res|)} is VALID [2020-07-29 02:54:24,947 INFO L280 TraceCheckUtils]: 13: Hoare triple {2376#(= 0 |ULTIMATE.start_isHighWaterSensorDry_#res|)} isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; {2377#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp~8)} is VALID [2020-07-29 02:54:24,947 INFO L280 TraceCheckUtils]: 14: Hoare triple {2377#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp~8)} assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; {2375#false} is VALID [2020-07-29 02:54:24,948 INFO L280 TraceCheckUtils]: 15: Hoare triple {2375#false} isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; {2375#false} is VALID [2020-07-29 02:54:24,948 INFO L280 TraceCheckUtils]: 16: Hoare triple {2375#false} processEnvironment__wrappee__methaneQuery_#t~ret38 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret38;havoc processEnvironment__wrappee__methaneQuery_#t~ret38; {2375#false} is VALID [2020-07-29 02:54:24,949 INFO L280 TraceCheckUtils]: 17: Hoare triple {2375#false} assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); {2375#false} is VALID [2020-07-29 02:54:24,949 INFO L280 TraceCheckUtils]: 18: Hoare triple {2375#false} havoc __utac_acc__Specification4_spec__1_#t~ret0, __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; {2375#false} is VALID [2020-07-29 02:54:24,949 INFO L280 TraceCheckUtils]: 19: Hoare triple {2375#false} __utac_acc__Specification4_spec__1_#t~ret0 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret0;havoc __utac_acc__Specification4_spec__1_#t~ret0; {2375#false} is VALID [2020-07-29 02:54:24,950 INFO L280 TraceCheckUtils]: 20: Hoare triple {2375#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); {2375#false} is VALID [2020-07-29 02:54:24,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:54:24,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431984933] [2020-07-29 02:54:24,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:54:24,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-29 02:54:24,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122707901] [2020-07-29 02:54:24,958 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-29 02:54:24,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:54:24,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-29 02:54:24,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-29 02:54:24,961 INFO L87 Difference]: Start difference. First operand 317 states and 442 transitions. cyclomatic complexity: 128 Second operand 4 states. [2020-07-29 02:54:25,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:54:25,944 INFO L93 Difference]: Finished difference Result 891 states and 1218 transitions. [2020-07-29 02:54:25,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-29 02:54:25,945 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-29 02:54:25,967 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:54:25,968 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 891 states and 1218 transitions. [2020-07-29 02:54:26,047 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 637 [2020-07-29 02:54:26,100 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 891 states to 891 states and 1218 transitions. [2020-07-29 02:54:26,100 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 891 [2020-07-29 02:54:26,101 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 891 [2020-07-29 02:54:26,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 891 states and 1218 transitions. [2020-07-29 02:54:26,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:54:26,103 INFO L688 BuchiCegarLoop]: Abstraction has 891 states and 1218 transitions. [2020-07-29 02:54:26,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states and 1218 transitions. [2020-07-29 02:54:26,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 341. [2020-07-29 02:54:26,118 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:54:26,118 INFO L82 GeneralOperation]: Start isEquivalent. First operand 891 states and 1218 transitions. Second operand 341 states. [2020-07-29 02:54:26,118 INFO L74 IsIncluded]: Start isIncluded. First operand 891 states and 1218 transitions. Second operand 341 states. [2020-07-29 02:54:26,119 INFO L87 Difference]: Start difference. First operand 891 states and 1218 transitions. Second operand 341 states. [2020-07-29 02:54:26,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:54:26,167 INFO L93 Difference]: Finished difference Result 891 states and 1218 transitions. [2020-07-29 02:54:26,167 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1218 transitions. [2020-07-29 02:54:26,169 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:54:26,169 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:54:26,169 INFO L74 IsIncluded]: Start isIncluded. First operand 341 states. Second operand 891 states and 1218 transitions. [2020-07-29 02:54:26,170 INFO L87 Difference]: Start difference. First operand 341 states. Second operand 891 states and 1218 transitions. [2020-07-29 02:54:26,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:54:26,212 INFO L93 Difference]: Finished difference Result 891 states and 1218 transitions. [2020-07-29 02:54:26,212 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1218 transitions. [2020-07-29 02:54:26,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:54:26,214 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:54:26,214 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:54:26,215 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:54:26,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-07-29 02:54:26,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 466 transitions. [2020-07-29 02:54:26,223 INFO L711 BuchiCegarLoop]: Abstraction has 341 states and 466 transitions. [2020-07-29 02:54:26,223 INFO L591 BuchiCegarLoop]: Abstraction has 341 states and 466 transitions. [2020-07-29 02:54:26,223 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-29 02:54:26,224 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 341 states and 466 transitions. [2020-07-29 02:54:26,225 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2020-07-29 02:54:26,226 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:54:26,226 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:54:26,226 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:54:26,226 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] [2020-07-29 02:54:26,227 INFO L794 eck$LassoCheckResult]: Stem: 3403#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(30);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(9);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(21);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(30);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(9);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(25);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(77, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(101, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(116, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(104, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string64.base, #t~string64.offset, 1);call write~init~int(82, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(73, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(84, #t~string64.base, 3 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 4 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(75, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 3302#L-1 havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 3303#L959 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 3339#L967 main_#t~ret37 := valid_product_#res;main_~tmp~4 := main_#t~ret37;havoc main_#t~ret37; 3340#L534 assume 0 != main_~tmp~4; 3359#L507 havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3360#L51-1 [2020-07-29 02:54:26,227 INFO L796 eck$LassoCheckResult]: Loop: 3360#L51-1 assume !false; 3587#L879 assume test_~splverifierCounter~0 < 4; 3588#L880 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 3277#L888 assume !(0 != test_~tmp~9); 3279#L888-1 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 3285#L898 assume !(0 != test_~tmp___0~2); 3346#L898-1 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 3348#L908 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3419#L916-1 assume !(0 != ~pumpRunning~0); 3304#L563 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 3280#L621 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret38, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 3281#L595-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 3354#L857-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 3581#L862-1 isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; 3579#L740-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 3576#L740-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 3574#L746-1 processEnvironment__wrappee__methaneQuery_#t~ret38 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret38;havoc processEnvironment__wrappee__methaneQuery_#t~ret38; 3572#L599-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 3385#L570 havoc __utac_acc__Specification4_spec__1_#t~ret0, __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 3594#L849 __utac_acc__Specification4_spec__1_#t~ret0 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret0;havoc __utac_acc__Specification4_spec__1_#t~ret0; 3592#L51 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 3360#L51-1 [2020-07-29 02:54:26,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:54:26,227 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2020-07-29 02:54:26,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:54:26,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874155981] [2020-07-29 02:54:26,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:54:26,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:26,259 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:26,286 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:26,294 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:54:26,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:54:26,295 INFO L82 PathProgramCache]: Analyzing trace with hash 621628058, now seen corresponding path program 1 times [2020-07-29 02:54:26,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:54:26,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157858803] [2020-07-29 02:54:26,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:54:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:26,301 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:26,305 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:26,308 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:54:26,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:54:26,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1077699252, now seen corresponding path program 1 times [2020-07-29 02:54:26,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:54:26,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054369310] [2020-07-29 02:54:26,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:54:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:26,362 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:54:26,417 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:54:26,435 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:54:26,545 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-07-29 02:55:14,462 WARN L193 SmtUtils]: Spent 47.82 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2020-07-29 02:55:54,654 WARN L193 SmtUtils]: Spent 39.94 s on a formula simplification that was a NOOP. DAG size: 400 [2020-07-29 02:55:55,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 02:55:55 BoogieIcfgContainer [2020-07-29 02:55:55,114 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 02:55:55,115 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 02:55:55,116 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 02:55:55,117 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 02:55:55,118 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:54:22" (3/4) ... [2020-07-29 02:55:55,126 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 02:55:55,188 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 02:55:55,189 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 02:55:55,192 INFO L168 Benchmark]: Toolchain (without parser) took 95486.75 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 358.1 MB). Free memory was 957.5 MB in the beginning and 1.3 GB in the end (delta: -298.9 MB). Peak memory consumption was 59.2 MB. Max. memory is 11.5 GB. [2020-07-29 02:55:55,192 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:55:55,193 INFO L168 Benchmark]: CACSL2BoogieTranslator took 815.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -161.9 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2020-07-29 02:55:55,194 INFO L168 Benchmark]: Boogie Procedure Inliner took 122.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-29 02:55:55,195 INFO L168 Benchmark]: Boogie Preprocessor took 54.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-29 02:55:55,196 INFO L168 Benchmark]: RCFGBuilder took 1637.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 948.1 MB in the end (delta: 152.6 MB). Peak memory consumption was 152.6 MB. Max. memory is 11.5 GB. [2020-07-29 02:55:55,197 INFO L168 Benchmark]: BuchiAutomizer took 92773.86 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 224.9 MB). Free memory was 948.1 MB in the beginning and 1.3 GB in the end (delta: -308.4 MB). Peak memory consumption was 314.3 MB. Max. memory is 11.5 GB. [2020-07-29 02:55:55,197 INFO L168 Benchmark]: Witness Printer took 74.42 ms. Allocated memory is still 1.4 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:55:55,201 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 815.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -161.9 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 122.16 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 54.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1637.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 948.1 MB in the end (delta: 152.6 MB). Peak memory consumption was 152.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 92773.86 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 224.9 MB). Free memory was 948.1 MB in the beginning and 1.3 GB in the end (delta: -308.4 MB). Peak memory consumption was 314.3 MB. Max. memory is 11.5 GB. * Witness Printer took 74.42 ms. Allocated memory is still 1.4 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 341 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 92.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 89.8s. Construction of modules took 0.1s. Büchi inclusion checks took 1.9s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 552 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.2s Buchi closure took 0.0s. Biggest automaton had 341 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 688 SDtfs, 650 SDslu, 654 SDs, 0 SdLazy, 101 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 878]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1742} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=1766, NULL=1742, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=1752, methaneLevelCritical=0, tmp___0=0, retValue_acc=1, NULL=0, NULL=1760, NULL=0, NULL=1746, tmp___1=0, tmp=0, NULL=1758, retValue_acc=0, NULL=1757, NULL=1743, tmp___0=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f74a4ca=0, NULL=1764, NULL=1755, NULL=1765, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ae73f3d=0, NULL=1761, NULL=1749, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4cef5428=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34fd2ac5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@154e6cf1=0, NULL=0, \result=0, NULL=1745, NULL=1754, NULL=0, NULL=0, NULL=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=1751, NULL=1750, \result=0, NULL=1744, tmp=1, NULL=1748, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@99666e3=0, NULL=0, NULL=0, NULL=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12e2bedc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f7fd53e=57, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48463d42=0, NULL=1756, retValue_acc=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cb075bf=0, tmp___2=57, tmp___0=0, NULL=1767, splverifierCounter=0, head=0, NULL=1762, NULL=0, tmp=0, NULL=0, NULL=1759, NULL=0, NULL=0, NULL=1747, NULL=1753, NULL=1763, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L238] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L556] int pumpRunning = 0; [L557] int systemActive = 1; [L774] int waterLevel = 1; [L775] int methaneLevelCritical = 0; [L525] int retValue_acc ; [L526] int tmp ; [L963] int retValue_acc ; [L966] retValue_acc = 1 [L967] return (retValue_acc); [L532] tmp = valid_product() [L534] COND TRUE \read(tmp) [L869] int splverifierCounter ; [L870] int tmp ; [L871] int tmp___0 ; [L872] int tmp___1 ; [L873] int tmp___2 ; [L876] splverifierCounter = 0 Loop: [L878] COND TRUE 1 [L880] COND TRUE splverifierCounter < 4 [L886] tmp = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp)) [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND TRUE \read(tmp___2) [L769] systemActive = 1 [L563] COND FALSE !(\read(pumpRunning)) [L570] COND TRUE \read(systemActive) [L618] int tmp ; [L621] COND FALSE !(\read(pumpRunning)) [L592] int tmp ; [L595] COND TRUE ! pumpRunning [L732] int retValue_acc ; [L733] int tmp ; [L734] int tmp___0 ; [L854] int retValue_acc ; [L857] COND TRUE waterLevel < 2 [L858] retValue_acc = 1 [L859] return (retValue_acc); [L738] tmp = isHighWaterSensorDry() [L740] COND TRUE \read(tmp) [L741] tmp___0 = 0 [L745] retValue_acc = tmp___0 [L746] return (retValue_acc); [L597] tmp = isHighWaterLevel() [L599] COND FALSE !(\read(tmp)) [L44] int tmp ; [L45] int tmp___0 ; [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...