./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product42.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 0f3978068d3e88eb2e8d08ee6f85f2ba09bbc729 ........................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:26:58,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:26:58,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:26:58,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:26:58,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:26:58,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:26:58,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:26:58,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:26:58,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:26:58,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:26:58,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:26:58,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:26:58,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:26:58,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:26:58,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:26:58,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:26:58,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:26:58,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:26:58,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:26:58,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:26:58,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:26:58,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:26:58,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:26:58,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:26:58,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:26:58,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:26:58,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:26:58,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:26:58,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:26:58,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:26:58,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:26:58,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:26:58,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:26:58,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:26:58,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:26:58,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:26:58,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:26:58,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:26:58,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:26:58,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:26:58,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:26:58,743 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:26:58,783 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:26:58,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:26:58,784 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:26:58,784 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:26:58,788 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:26:58,788 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:26:58,788 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:26:58,788 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:26:58,789 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:26:58,789 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:26:58,789 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:26:58,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:26:58,789 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:26:58,790 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:26:58,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:26:58,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:26:58,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:26:58,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:26:58,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:26:58,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:26:58,793 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:26:58,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:26:58,793 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:26:58,794 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:26:58,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:26:58,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:26:58,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:26:58,795 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:26:58,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:26:58,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:26:58,795 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:26:58,797 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:26:58,798 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 -> 0f3978068d3e88eb2e8d08ee6f85f2ba09bbc729 [2019-11-28 03:26:59,103 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:26:59,119 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:26:59,123 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:26:59,124 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:26:59,125 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:26:59,125 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2019-11-28 03:26:59,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d4f0b579/5c29f8491569473bbd20c4ddeb54816d/FLAG6665c9882 [2019-11-28 03:26:59,674 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:26:59,675 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2019-11-28 03:26:59,688 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d4f0b579/5c29f8491569473bbd20c4ddeb54816d/FLAG6665c9882 [2019-11-28 03:27:00,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d4f0b579/5c29f8491569473bbd20c4ddeb54816d [2019-11-28 03:27:00,010 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:27:00,011 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:27:00,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:27:00,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:27:00,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:27:00,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:27:00" (1/1) ... [2019-11-28 03:27:00,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21aba202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:00, skipping insertion in model container [2019-11-28 03:27:00,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:27:00" (1/1) ... [2019-11-28 03:27:00,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:27:00,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:27:00,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:27:00,477 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:27:00,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:27:00,601 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:27:00,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:00 WrapperNode [2019-11-28 03:27:00,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:27:00,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:27:00,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:27:00,602 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:27:00,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:00" (1/1) ... [2019-11-28 03:27:00,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:00" (1/1) ... [2019-11-28 03:27:00,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:27:00,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:27:00,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:27:00,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:27:00,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:00" (1/1) ... [2019-11-28 03:27:00,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:00" (1/1) ... [2019-11-28 03:27:00,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:00" (1/1) ... [2019-11-28 03:27:00,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:00" (1/1) ... [2019-11-28 03:27:00,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:00" (1/1) ... [2019-11-28 03:27:00,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:00" (1/1) ... [2019-11-28 03:27:00,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:00" (1/1) ... [2019-11-28 03:27:00,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:27:00,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:27:00,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:27:00,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:27:00,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:27:00,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:27:00,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 03:27:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:27:00,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:27:01,512 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:27:01,513 INFO L297 CfgBuilder]: Removed 116 assume(true) statements. [2019-11-28 03:27:01,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:27:01 BoogieIcfgContainer [2019-11-28 03:27:01,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:27:01,515 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:27:01,515 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:27:01,518 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:27:01,519 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:27:01,520 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:27:00" (1/3) ... [2019-11-28 03:27:01,521 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b73686b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:27:01, skipping insertion in model container [2019-11-28 03:27:01,521 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:27:01,521 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:00" (2/3) ... [2019-11-28 03:27:01,522 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b73686b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:27:01, skipping insertion in model container [2019-11-28 03:27:01,522 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:27:01,522 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:27:01" (3/3) ... [2019-11-28 03:27:01,524 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product42.cil.c [2019-11-28 03:27:01,567 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:27:01,568 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:27:01,568 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:27:01,568 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:27:01,569 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:27:01,569 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:27:01,569 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:27:01,570 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:27:01,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states. [2019-11-28 03:27:01,609 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2019-11-28 03:27:01,610 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:27:01,610 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:27:01,616 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:27:01,617 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:27:01,617 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:27:01,617 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states. [2019-11-28 03:27:01,624 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2019-11-28 03:27:01,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:27:01,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:27:01,625 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:27:01,625 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:27:01,631 INFO L794 eck$LassoCheckResult]: Stem: 42#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 11#L-1true havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 39#L820true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 59#L828true main_#t~ret72 := valid_product_#res;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 43#L915true assume 0 != main_~tmp~8; 19#L892true havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 55#L777-1true [2019-11-28 03:27:01,632 INFO L796 eck$LassoCheckResult]: Loop: 55#L777-1true assume !false; 52#L521true assume test_~splverifierCounter~0 < 4; 8#L522true test_~tmp~3 := test_#t~nondet45;havoc test_#t~nondet45; 16#L530true assume !(0 != test_~tmp~3); 22#L530-1true test_~tmp___0~0 := test_#t~nondet46;havoc test_#t~nondet46; 80#L540true assume !(0 != test_~tmp___0~0); 82#L540-1true test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 61#L550true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 71#L558-2true assume !(0 != ~pumpRunning~0); 34#L589true assume !(0 != ~systemActive~0); 13#L596true havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 78#L456-1true __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; 53#L777true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 55#L777-1true [2019-11-28 03:27:01,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:27:01,644 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 03:27:01,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:27:01,652 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933253062] [2019-11-28 03:27:01,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:27:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:02,059 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:27:02,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:27:02,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1680236925, now seen corresponding path program 1 times [2019-11-28 03:27:02,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:27:02,062 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315787796] [2019-11-28 03:27:02,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:27:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:27:02,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:27:02,115 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315787796] [2019-11-28 03:27:02,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:27:02,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:27:02,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100084496] [2019-11-28 03:27:02,122 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:27:02,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:27:02,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:27:02,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:27:02,142 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2019-11-28 03:27:02,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:27:02,188 INFO L93 Difference]: Finished difference Result 84 states and 116 transitions. [2019-11-28 03:27:02,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:27:02,191 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 116 transitions. [2019-11-28 03:27:02,195 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-11-28 03:27:02,200 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 77 states and 108 transitions. [2019-11-28 03:27:02,201 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 77 [2019-11-28 03:27:02,202 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2019-11-28 03:27:02,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 108 transitions. [2019-11-28 03:27:02,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:27:02,204 INFO L688 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2019-11-28 03:27:02,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 108 transitions. [2019-11-28 03:27:02,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-11-28 03:27:02,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-28 03:27:02,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2019-11-28 03:27:02,236 INFO L711 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2019-11-28 03:27:02,236 INFO L591 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2019-11-28 03:27:02,236 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:27:02,236 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 108 transitions. [2019-11-28 03:27:02,238 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-11-28 03:27:02,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:27:02,238 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:27:02,239 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:27:02,239 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:27:02,240 INFO L794 eck$LassoCheckResult]: Stem: 231#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 196#L-1 havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 197#L820 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 227#L828 main_#t~ret72 := valid_product_#res;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 232#L915 assume 0 != main_~tmp~8; 206#L892 havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 207#L777-1 [2019-11-28 03:27:02,240 INFO L796 eck$LassoCheckResult]: Loop: 207#L777-1 assume !false; 242#L521 assume test_~splverifierCounter~0 < 4; 193#L522 test_~tmp~3 := test_#t~nondet45;havoc test_#t~nondet45; 194#L530 assume !(0 != test_~tmp~3); 205#L530-1 test_~tmp___0~0 := test_#t~nondet46;havoc test_#t~nondet46; 210#L540 assume !(0 != test_~tmp___0~0); 236#L540-1 test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 246#L550 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 247#L558-2 assume !(0 != ~pumpRunning~0); 219#L589 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 179#L621 assume !(0 == ~pumpRunning~0); 181#L596 havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 195#L456-1 __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; 241#L777 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 207#L777-1 [2019-11-28 03:27:02,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:27:02,240 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 03:27:02,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:27:02,241 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382564315] [2019-11-28 03:27:02,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:27:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:02,349 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:27:02,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:27:02,350 INFO L82 PathProgramCache]: Analyzing trace with hash -589506373, now seen corresponding path program 1 times [2019-11-28 03:27:02,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:27:02,351 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024719955] [2019-11-28 03:27:02,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:27:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:27:02,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:27:02,366 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024719955] [2019-11-28 03:27:02,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:27:02,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:27:02,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733983840] [2019-11-28 03:27:02,368 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:27:02,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:27:02,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:27:02,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:27:02,369 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. cyclomatic complexity: 33 Second operand 3 states. [2019-11-28 03:27:02,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:27:02,466 INFO L93 Difference]: Finished difference Result 118 states and 159 transitions. [2019-11-28 03:27:02,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:27:02,468 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 159 transitions. [2019-11-28 03:27:02,470 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2019-11-28 03:27:02,473 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 118 states and 159 transitions. [2019-11-28 03:27:02,473 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 118 [2019-11-28 03:27:02,474 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 118 [2019-11-28 03:27:02,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 118 states and 159 transitions. [2019-11-28 03:27:02,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:27:02,476 INFO L688 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2019-11-28 03:27:02,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states and 159 transitions. [2019-11-28 03:27:02,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2019-11-28 03:27:02,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-11-28 03:27:02,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 159 transitions. [2019-11-28 03:27:02,485 INFO L711 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2019-11-28 03:27:02,485 INFO L591 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2019-11-28 03:27:02,485 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:27:02,486 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 118 states and 159 transitions. [2019-11-28 03:27:02,487 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2019-11-28 03:27:02,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:27:02,488 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:27:02,489 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:27:02,489 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] [2019-11-28 03:27:02,489 INFO L794 eck$LassoCheckResult]: Stem: 431#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 395#L-1 havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 396#L820 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 427#L828 main_#t~ret72 := valid_product_#res;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 432#L915 assume 0 != main_~tmp~8; 409#L892 havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 410#L777-1 [2019-11-28 03:27:02,490 INFO L796 eck$LassoCheckResult]: Loop: 410#L777-1 assume !false; 443#L521 assume test_~splverifierCounter~0 < 4; 444#L522 test_~tmp~3 := test_#t~nondet45;havoc test_#t~nondet45; 495#L530 assume !(0 != test_~tmp~3); 493#L530-1 test_~tmp___0~0 := test_#t~nondet46;havoc test_#t~nondet46; 492#L540 assume !(0 != test_~tmp___0~0); 490#L540-1 test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 489#L550 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 460#L558-2 assume !(0 != ~pumpRunning~0); 422#L589 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 381#L621 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 382#L496 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 425#L501 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 426#L741 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 456#L741-2 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 441#L747 processEnvironment_#t~ret49 := isHighWaterLevel_#res;processEnvironment_~tmp~4 := processEnvironment_#t~ret49;havoc processEnvironment_#t~ret49; 412#L625 assume !(0 != processEnvironment_~tmp~4); 399#L596 havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 400#L456-1 __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; 445#L777 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 410#L777-1 [2019-11-28 03:27:02,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:27:02,490 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 03:27:02,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:27:02,491 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793839152] [2019-11-28 03:27:02,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:27:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:02,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:02,585 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:27:02,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:27:02,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1033634393, now seen corresponding path program 1 times [2019-11-28 03:27:02,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:27:02,587 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978738363] [2019-11-28 03:27:02,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:27:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:02,607 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:27:02,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:27:02,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1018922419, now seen corresponding path program 1 times [2019-11-28 03:27:02,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:27:02,610 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948661059] [2019-11-28 03:27:02,610 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:27:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:02,734 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:27:02,882 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-11-28 03:27:29,789 WARN L192 SmtUtils]: Spent 26.83 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 03:27:42,157 WARN L192 SmtUtils]: Spent 12.37 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 03:27:42,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:27:42 BoogieIcfgContainer [2019-11-28 03:27:42,264 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:27:42,265 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:27:42,265 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:27:42,266 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:27:42,266 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:27:01" (3/4) ... [2019-11-28 03:27:42,270 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 03:27:42,333 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 03:27:42,333 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:27:42,335 INFO L168 Benchmark]: Toolchain (without parser) took 42323.86 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 291.5 MB). Free memory was 956.3 MB in the beginning and 1.2 GB in the end (delta: -288.3 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:27:42,336 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:27:42,336 INFO L168 Benchmark]: CACSL2BoogieTranslator took 589.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -145.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:27:42,337 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:27:42,339 INFO L168 Benchmark]: Boogie Preprocessor took 52.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:27:42,340 INFO L168 Benchmark]: RCFGBuilder took 783.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.3 MB). Peak memory consumption was 58.3 MB. Max. memory is 11.5 GB. [2019-11-28 03:27:42,340 INFO L168 Benchmark]: BuchiAutomizer took 40749.55 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 172.5 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -224.1 MB). Peak memory consumption was 390.3 MB. Max. memory is 11.5 GB. [2019-11-28 03:27:42,341 INFO L168 Benchmark]: Witness Printer took 68.70 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:27:42,345 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 589.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -145.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.40 ms. Allocated memory is still 1.1 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 52.67 ms. Allocated memory is still 1.1 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 783.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.3 MB). Peak memory consumption was 58.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 40749.55 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 172.5 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -224.1 MB). Peak memory consumption was 390.3 MB. Max. memory is 11.5 GB. * Witness Printer took 68.70 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 118 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 40.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 40.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 118 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 219 SDtfs, 203 SDslu, 48 SDs, 0 SdLazy, 24 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 520]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9292} State at position 1 is {NULL=0, NULL=14228, NULL=0, NULL=9292, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46500b78=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3345a177=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@701de084=57, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1416c335=0, NULL=0, NULL=14225, NULL=14206, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@119f6210=0, NULL=0, methaneLevelCritical=0, retValue_acc=1, tmp___0=0, tmp=0, NULL=0, retValue_acc=0, NULL=0, tmp___1=0, NULL=14223, NULL=14209, tmp___0=0, NULL=14218, NULL=14221, NULL=14226, cleanupTimeShifts=4, NULL=14220, NULL=14208, NULL=14224, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65ed6078=0, retValue_acc=0, \result=0, NULL=14205, tmp___0=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, \result=1, NULL=14215, head=0, pumpRunning=0, NULL=14227, \result=0, retValue_acc=1, NULL=14214, tmp=0, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a702a38=0, NULL=0, \result=1, NULL=14213, NULL=14204, NULL=14216, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d2f73d2=0, tmp___2=57, NULL=14207, tmp=1, splverifierCounter=0, NULL=0, \result=0, NULL=14222, head=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2da19438=0, NULL=0, NULL=14210, NULL=14219, NULL=0, NULL=14212, NULL=0, NULL=0, NULL=14217, NULL=14211} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L581] int pumpRunning = 0; [L582] int systemActive = 1; [L833] int cleanupTimeShifts = 4; [L906] int retValue_acc ; [L907] int tmp ; [L824] int retValue_acc ; [L827] retValue_acc = 1 [L828] return (retValue_acc); [L913] tmp = valid_product() [L915] COND TRUE \read(tmp) [L511] int splverifierCounter ; [L512] int tmp ; [L513] int tmp___0 ; [L514] int tmp___1 ; [L515] int tmp___2 ; [L518] splverifierCounter = 0 Loop: [L520] COND TRUE 1 [L522] COND TRUE splverifierCounter < 4 [L528] tmp = __VERIFIER_nondet_int() [L530] COND FALSE !(\read(tmp)) [L538] tmp___0 = __VERIFIER_nondet_int() [L540] COND FALSE !(\read(tmp___0)) [L548] tmp___2 = __VERIFIER_nondet_int() [L550] COND TRUE \read(tmp___2) [L755] systemActive = 1 [L589] COND FALSE !(\read(pumpRunning)) [L596] COND TRUE \read(systemActive) [L618] int tmp ; [L621] COND TRUE ! pumpRunning [L733] int retValue_acc ; [L734] int tmp ; [L735] int tmp___0 ; [L493] int retValue_acc ; [L496] COND TRUE waterLevel < 2 [L497] retValue_acc = 1 [L498] return (retValue_acc); [L739] tmp = isHighWaterSensorDry() [L741] COND TRUE \read(tmp) [L742] tmp___0 = 0 [L746] retValue_acc = tmp___0 [L747] return (retValue_acc); [L623] tmp = isHighWaterLevel() [L625] COND FALSE !(\read(tmp)) [L770] int tmp ; [L771] int tmp___0 ; [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); [L775] tmp = isMethaneLevelCritical() [L777] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...