./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product04.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_spec3_product04.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 77951208f64a8e7a2de110a05be31eef72f84584 ....................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:32:02,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:32:02,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:32:02,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:32:02,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:32:02,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:32:02,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:32:02,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:32:02,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:32:02,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:32:02,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:32:02,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:32:02,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:32:02,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:32:02,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:32:02,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:32:02,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:32:02,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:32:02,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:32:02,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:32:02,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:32:02,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:32:02,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:32:02,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:32:02,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:32:02,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:32:02,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:32:02,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:32:02,831 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:32:02,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:32:02,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:32:02,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:32:02,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:32:02,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:32:02,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:32:02,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:32:02,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:32:02,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:32:02,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:32:02,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:32:02,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:32:02,841 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:32:02,858 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:32:02,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:32:02,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:32:02,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:32:02,860 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:32:02,860 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:32:02,861 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:32:02,861 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:32:02,861 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:32:02,861 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:32:02,862 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:32:02,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:32:02,862 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:32:02,862 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:32:02,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:32:02,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:32:02,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:32:02,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:32:02,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:32:02,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:32:02,864 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:32:02,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:32:02,865 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:32:02,865 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:32:02,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:32:02,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:32:02,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:32:02,866 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:32:02,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:32:02,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:32:02,867 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:32:02,868 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:32:02,869 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 -> 77951208f64a8e7a2de110a05be31eef72f84584 [2019-11-28 03:32:03,162 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:32:03,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:32:03,181 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:32:03,185 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:32:03,186 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:32:03,187 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c [2019-11-28 03:32:03,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b67eefd2f/f49a767e06884176b08d25fd365c1958/FLAG7d72668e0 [2019-11-28 03:32:03,832 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:32:03,833 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c [2019-11-28 03:32:03,849 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b67eefd2f/f49a767e06884176b08d25fd365c1958/FLAG7d72668e0 [2019-11-28 03:32:04,103 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b67eefd2f/f49a767e06884176b08d25fd365c1958 [2019-11-28 03:32:04,107 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:32:04,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:32:04,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:32:04,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:32:04,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:32:04,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:32:04" (1/1) ... [2019-11-28 03:32:04,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d0e939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:04, skipping insertion in model container [2019-11-28 03:32:04,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:32:04" (1/1) ... [2019-11-28 03:32:04,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:32:04,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:32:04,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:32:04,584 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:32:04,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:32:04,742 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:32:04,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:04 WrapperNode [2019-11-28 03:32:04,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:32:04,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:32:04,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:32:04,745 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:32:04,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:04" (1/1) ... [2019-11-28 03:32:04,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:04" (1/1) ... [2019-11-28 03:32:04,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:32:04,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:32:04,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:32:04,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:32:04,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:04" (1/1) ... [2019-11-28 03:32:04,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:04" (1/1) ... [2019-11-28 03:32:04,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:04" (1/1) ... [2019-11-28 03:32:04,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:04" (1/1) ... [2019-11-28 03:32:04,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:04" (1/1) ... [2019-11-28 03:32:04,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:04" (1/1) ... [2019-11-28 03:32:04,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:04" (1/1) ... [2019-11-28 03:32:04,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:32:04,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:32:04,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:32:04,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:32:04,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:04" (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 03:32:04,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:32:04,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 03:32:04,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:32:04,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:32:05,576 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:32:05,577 INFO L297 CfgBuilder]: Removed 78 assume(true) statements. [2019-11-28 03:32:05,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:32:05 BoogieIcfgContainer [2019-11-28 03:32:05,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:32:05,579 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:32:05,580 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:32:05,583 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:32:05,585 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:32:05,585 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:32:04" (1/3) ... [2019-11-28 03:32:05,586 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4298e844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:32:05, skipping insertion in model container [2019-11-28 03:32:05,587 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:32:05,587 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:04" (2/3) ... [2019-11-28 03:32:05,588 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4298e844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:32:05, skipping insertion in model container [2019-11-28 03:32:05,588 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:32:05,588 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:32:05" (3/3) ... [2019-11-28 03:32:05,590 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product04.cil.c [2019-11-28 03:32:05,637 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:32:05,637 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:32:05,638 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:32:05,638 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:32:05,638 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:32:05,638 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:32:05,638 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:32:05,639 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:32:05,654 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states. [2019-11-28 03:32:05,683 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2019-11-28 03:32:05,683 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:32:05,683 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:32:05,692 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:32:05,693 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:32:05,693 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:32:05,693 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states. [2019-11-28 03:32:05,698 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2019-11-28 03:32:05,698 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:32:05,699 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:32:05,699 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:32:05,700 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:32:05,706 INFO L794 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(13);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 12#L-1true havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3; 55#L517true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 57#L525true main_#t~ret46 := valid_product_#res;main_~tmp~3 := main_#t~ret46;havoc main_#t~ret46; 38#L615true assume 0 != main_~tmp~3; 63#L591true havoc test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 6#L654-1true [2019-11-28 03:32:05,707 INFO L796 eck$LassoCheckResult]: Loop: 6#L654-1true assume !false; 61#L818true assume test_~splverifierCounter~0 < 4; 14#L819true test_~tmp~5 := test_#t~nondet67;havoc test_#t~nondet67; 45#L827true assume !(0 != test_~tmp~5); 49#L827-1true test_~tmp___0~1 := test_#t~nondet68;havoc test_#t~nondet68; 23#L837true assume !(0 != test_~tmp___0~1); 3#L837-1true test_~tmp___2~0 := test_#t~nondet69;havoc test_#t~nondet69; 64#L847true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 9#L855-1true assume !(0 != ~pumpRunning~0); 30#L684true assume !(0 != ~systemActive~0); 15#L691true havoc __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_#t~ret49, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 56#L89true __utac_acc__Specification3_spec__1_#t~ret47 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret47;havoc __utac_acc__Specification3_spec__1_#t~ret47; 36#L648true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 6#L654-1true [2019-11-28 03:32:05,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:32:05,714 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 03:32:05,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:32:05,722 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694416888] [2019-11-28 03:32:05,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:32:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:32:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:32:06,121 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:32:06,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:32:06,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1672941121, now seen corresponding path program 1 times [2019-11-28 03:32:06,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:32:06,123 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050291080] [2019-11-28 03:32:06,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:32:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:32:06,180 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 03:32:06,181 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050291080] [2019-11-28 03:32:06,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:32:06,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:32:06,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651617033] [2019-11-28 03:32:06,189 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:32:06,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:32:06,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:32:06,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:32:06,211 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 3 states. [2019-11-28 03:32:06,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:32:06,291 INFO L93 Difference]: Finished difference Result 118 states and 162 transitions. [2019-11-28 03:32:06,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:32:06,294 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 162 transitions. [2019-11-28 03:32:06,302 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 74 [2019-11-28 03:32:06,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 104 states and 147 transitions. [2019-11-28 03:32:06,320 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2019-11-28 03:32:06,323 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2019-11-28 03:32:06,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 147 transitions. [2019-11-28 03:32:06,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:32:06,327 INFO L688 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2019-11-28 03:32:06,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 147 transitions. [2019-11-28 03:32:06,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 102. [2019-11-28 03:32:06,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-28 03:32:06,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 144 transitions. [2019-11-28 03:32:06,390 INFO L711 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2019-11-28 03:32:06,391 INFO L591 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2019-11-28 03:32:06,391 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:32:06,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states and 144 transitions. [2019-11-28 03:32:06,400 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 72 [2019-11-28 03:32:06,401 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:32:06,401 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:32:06,402 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:32:06,402 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:32:06,403 INFO L794 eck$LassoCheckResult]: Stem: 232#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(13);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 208#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3; 209#L517 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 260#L525 main_#t~ret46 := valid_product_#res;main_~tmp~3 := main_#t~ret46;havoc main_#t~ret46; 237#L615 assume 0 != main_~tmp~3; 238#L591 havoc test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 192#L654-1 [2019-11-28 03:32:06,404 INFO L796 eck$LassoCheckResult]: Loop: 192#L654-1 assume !false; 196#L818 assume test_~splverifierCounter~0 < 4; 212#L819 test_~tmp~5 := test_#t~nondet67;havoc test_#t~nondet67; 213#L827 assume !(0 != test_~tmp~5); 248#L827-1 test_~tmp___0~1 := test_#t~nondet68;havoc test_#t~nondet68; 223#L837 assume !(0 != test_~tmp___0~1); 189#L837-1 test_~tmp___2~0 := test_#t~nondet69;havoc test_#t~nondet69; 190#L847 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 199#L855-1 assume !(0 != ~pumpRunning~0); 204#L684 assume 0 != ~systemActive~0; 214#L691 havoc __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_#t~ret49, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 215#L89 __utac_acc__Specification3_spec__1_#t~ret47 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret47;havoc __utac_acc__Specification3_spec__1_#t~ret47; 234#L648 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 192#L654-1 [2019-11-28 03:32:06,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:32:06,405 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 03:32:06,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:32:06,406 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820332154] [2019-11-28 03:32:06,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:32:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:32:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:32:06,590 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:32:06,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:32:06,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1673030494, now seen corresponding path program 1 times [2019-11-28 03:32:06,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:32:06,592 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823050274] [2019-11-28 03:32:06,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:32:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:32:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:32:06,616 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:32:06,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:32:06,617 INFO L82 PathProgramCache]: Analyzing trace with hash 41248444, now seen corresponding path program 1 times [2019-11-28 03:32:06,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:32:06,618 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687686574] [2019-11-28 03:32:06,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:32:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:32:06,735 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 03:32:06,736 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687686574] [2019-11-28 03:32:06,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:32:06,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:32:06,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134017349] [2019-11-28 03:32:06,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:32:06,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 03:32:06,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 03:32:06,877 INFO L87 Difference]: Start difference. First operand 102 states and 144 transitions. cyclomatic complexity: 45 Second operand 5 states. [2019-11-28 03:32:07,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:32:07,053 INFO L93 Difference]: Finished difference Result 319 states and 461 transitions. [2019-11-28 03:32:07,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 03:32:07,054 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 319 states and 461 transitions. [2019-11-28 03:32:07,061 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 240 [2019-11-28 03:32:07,064 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 319 states to 319 states and 461 transitions. [2019-11-28 03:32:07,064 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 319 [2019-11-28 03:32:07,066 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 319 [2019-11-28 03:32:07,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 319 states and 461 transitions. [2019-11-28 03:32:07,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:32:07,073 INFO L688 BuchiCegarLoop]: Abstraction has 319 states and 461 transitions. [2019-11-28 03:32:07,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states and 461 transitions. [2019-11-28 03:32:07,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 198. [2019-11-28 03:32:07,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-11-28 03:32:07,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 274 transitions. [2019-11-28 03:32:07,094 INFO L711 BuchiCegarLoop]: Abstraction has 198 states and 274 transitions. [2019-11-28 03:32:07,094 INFO L591 BuchiCegarLoop]: Abstraction has 198 states and 274 transitions. [2019-11-28 03:32:07,096 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:32:07,098 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 198 states and 274 transitions. [2019-11-28 03:32:07,100 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 144 [2019-11-28 03:32:07,100 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:32:07,103 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:32:07,103 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:32:07,104 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:32:07,104 INFO L794 eck$LassoCheckResult]: Stem: 674#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(13);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 648#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3; 649#L517 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 703#L525 main_#t~ret46 := valid_product_#res;main_~tmp~3 := main_#t~ret46;havoc main_#t~ret46; 678#L615 assume 0 != main_~tmp~3; 679#L591 havoc test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 710#L654-1 [2019-11-28 03:32:07,105 INFO L796 eck$LassoCheckResult]: Loop: 710#L654-1 assume !false; 739#L818 assume test_~splverifierCounter~0 < 4; 654#L819 test_~tmp~5 := test_#t~nondet67;havoc test_#t~nondet67; 655#L827 assume !(0 != test_~tmp~5); 692#L827-1 test_~tmp___0~1 := test_#t~nondet68;havoc test_#t~nondet68; 664#L837 assume !(0 != test_~tmp___0~1); 628#L837-1 test_~tmp___2~0 := test_#t~nondet69;havoc test_#t~nondet69; 629#L847 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 642#L855-1 assume !(0 != ~pumpRunning~0); 644#L684 assume 0 != ~systemActive~0; 753#L691 havoc __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_#t~ret49, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 752#L89 __utac_acc__Specification3_spec__1_#t~ret47 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret47;havoc __utac_acc__Specification3_spec__1_#t~ret47; 751#L648 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 750#L121 __utac_acc__Specification3_spec__1_#t~ret48 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret48;havoc __utac_acc__Specification3_spec__1_#t~ret48; 748#L654 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 710#L654-1 [2019-11-28 03:32:07,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:32:07,106 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 03:32:07,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:32:07,107 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336748141] [2019-11-28 03:32:07,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:32:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:32:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:32:07,227 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:32:07,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:32:07,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1464530636, now seen corresponding path program 1 times [2019-11-28 03:32:07,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:32:07,229 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808317706] [2019-11-28 03:32:07,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:32:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:32:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:32:07,256 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:32:07,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:32:07,257 INFO L82 PathProgramCache]: Analyzing trace with hash 985054414, now seen corresponding path program 1 times [2019-11-28 03:32:07,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:32:07,258 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812776643] [2019-11-28 03:32:07,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:32:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:32:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:32:07,364 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:32:30,731 WARN L192 SmtUtils]: Spent 23.21 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 03:32:41,993 WARN L192 SmtUtils]: Spent 11.26 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 03:32:42,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:32:42 BoogieIcfgContainer [2019-11-28 03:32:42,081 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:32:42,082 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:32:42,082 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:32:42,082 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:32:42,084 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:32:05" (3/4) ... [2019-11-28 03:32:42,088 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 03:32:42,189 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 03:32:42,190 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:32:42,191 INFO L168 Benchmark]: Toolchain (without parser) took 38083.15 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 297.8 MB). Free memory was 957.7 MB in the beginning and 1.3 GB in the end (delta: -333.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:32:42,192 INFO L168 Benchmark]: CDTParser took 0.20 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 03:32:42,193 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -157.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:32:42,195 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.68 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:32:42,196 INFO L168 Benchmark]: Boogie Preprocessor took 34.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:32:42,200 INFO L168 Benchmark]: RCFGBuilder took 735.37 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: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. [2019-11-28 03:32:42,201 INFO L168 Benchmark]: BuchiAutomizer took 36501.91 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 164.1 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -226.5 MB). Peak memory consumption was 397.4 MB. Max. memory is 11.5 GB. [2019-11-28 03:32:42,201 INFO L168 Benchmark]: Witness Printer took 108.13 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:32:42,204 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 634.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -157.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.68 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 735.37 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: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 36501.91 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 164.1 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -226.5 MB). Peak memory consumption was 397.4 MB. Max. memory is 11.5 GB. * Witness Printer took 108.13 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 198 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 36.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 35.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 123 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 198 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 186 SDtfs, 347 SDslu, 361 SDs, 0 SdLazy, 53 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 817]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@395b9966=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=112, NULL=1, NULL=0, NULL=0, NULL=9231, NULL=0, retValue_acc=0, NULL=634, NULL=0, NULL=9233, NULL=9240, methaneLevelCritical=0, NULL=9227, tmp=0, NULL=9226, NULL=9228, NULL=0, tmp___1=0, NULL=9237, tmp___0=1, NULL=9222, NULL=9229, cleanupTimeShifts=4, NULL=9223, NULL=9236, tmp=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=9235, NULL=0, NULL=0, NULL=9242, NULL=0, NULL=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, \result=0, NULL=9238, tmp=1, NULL=9241, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16b5937=56, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7553803a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7045fd35=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c245dd9=0, NULL=9221, tmp___2=56, NULL=9220, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29e7ecd1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ba514ea=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ace4611=0, \result=0, NULL=9225, tmp___1=0, head=0, NULL=0, NULL=9230, NULL=0, NULL=0, NULL=9232, NULL=0, NULL=9224, NULL=9234, NULL=9239} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L46] int waterLevel = 1; [L47] int methaneLevelCritical = 0; [L295] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L530] int cleanupTimeShifts = 4; [L677] int pumpRunning = 0; [L678] int systemActive = 1; [L606] int retValue_acc ; [L607] int tmp ; [L521] int retValue_acc ; [L524] retValue_acc = 1 [L525] return (retValue_acc); [L613] tmp = valid_product() [L615] COND TRUE \read(tmp) [L808] int splverifierCounter ; [L809] int tmp ; [L810] int tmp___0 ; [L811] int tmp___1 ; [L812] int tmp___2 ; [L815] splverifierCounter = 0 Loop: [L817] COND TRUE 1 [L819] COND TRUE splverifierCounter < 4 [L825] tmp = __VERIFIER_nondet_int() [L827] COND FALSE !(\read(tmp)) [L835] tmp___0 = __VERIFIER_nondet_int() [L837] COND FALSE !(\read(tmp___0)) [L845] tmp___2 = __VERIFIER_nondet_int() [L847] COND TRUE \read(tmp___2) [L802] systemActive = 1 [L684] COND FALSE !(\read(pumpRunning)) [L691] COND TRUE \read(systemActive) [L640] int tmp ; [L641] int tmp___0 ; [L642] int tmp___1 ; [L85] int retValue_acc ; [L88] retValue_acc = methaneLevelCritical [L89] return (retValue_acc); [L646] tmp = isMethaneLevelCritical() [L648] COND FALSE !(\read(tmp)) [L117] int retValue_acc ; [L120] retValue_acc = waterLevel [L121] return (retValue_acc); [L652] tmp___0 = getWaterLevel() [L654] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...