./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 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_product14.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 f8bd2b9cdfe426b4b4e5d96ef145364b2303f1ae .......................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-19 22:28:47,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:28:47,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:28:47,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:28:47,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:28:47,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:28:47,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:28:47,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:28:47,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:28:47,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:28:47,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:28:47,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:28:47,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:28:47,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:28:47,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:28:47,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:28:47,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:28:47,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:28:47,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:28:47,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:28:47,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:28:47,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:28:47,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:28:47,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:28:47,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:28:47,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:28:47,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:28:47,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:28:47,907 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:28:47,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:28:47,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:28:47,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:28:47,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:28:47,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:28:47,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:28:47,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:28:47,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:28:47,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:28:47,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:28:47,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:28:47,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:28:47,918 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 22:28:47,955 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:28:47,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:28:47,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:28:47,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:28:47,961 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:28:47,961 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 22:28:47,962 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 22:28:47,962 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 22:28:47,962 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 22:28:47,962 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 22:28:47,964 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 22:28:47,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:28:47,964 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:28:47,965 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:28:47,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:28:47,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:28:47,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:28:47,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 22:28:47,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 22:28:47,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 22:28:47,967 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:28:47,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:28:47,967 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 22:28:47,969 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:28:47,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 22:28:47,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:28:47,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:28:47,970 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 22:28:47,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:28:47,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:28:47,971 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 22:28:47,973 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 22:28:47,974 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 -> f8bd2b9cdfe426b4b4e5d96ef145364b2303f1ae [2019-11-19 22:28:48,291 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:28:48,306 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:28:48,310 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:28:48,311 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:28:48,311 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:28:48,312 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c [2019-11-19 22:28:48,373 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/183fe0655/7f92a963b8df45a2ae7a9f5179382b05/FLAG3d2a52fee [2019-11-19 22:28:48,910 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:28:48,911 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c [2019-11-19 22:28:48,931 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/183fe0655/7f92a963b8df45a2ae7a9f5179382b05/FLAG3d2a52fee [2019-11-19 22:28:49,248 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/183fe0655/7f92a963b8df45a2ae7a9f5179382b05 [2019-11-19 22:28:49,251 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:28:49,253 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:28:49,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:28:49,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:28:49,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:28:49,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:28:49" (1/1) ... [2019-11-19 22:28:49,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dfa0dd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:49, skipping insertion in model container [2019-11-19 22:28:49,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:28:49" (1/1) ... [2019-11-19 22:28:49,270 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:28:49,330 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:28:49,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:28:49,723 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:28:49,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:28:49,859 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:28:49,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:49 WrapperNode [2019-11-19 22:28:49,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:28:49,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:28:49,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:28:49,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:28:49,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:49" (1/1) ... [2019-11-19 22:28:49,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:49" (1/1) ... [2019-11-19 22:28:49,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:28:49,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:28:49,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:28:49,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:28:49,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:49" (1/1) ... [2019-11-19 22:28:49,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:49" (1/1) ... [2019-11-19 22:28:49,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:49" (1/1) ... [2019-11-19 22:28:49,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:49" (1/1) ... [2019-11-19 22:28:49,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:49" (1/1) ... [2019-11-19 22:28:49,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:49" (1/1) ... [2019-11-19 22:28:49,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:49" (1/1) ... [2019-11-19 22:28:49,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:28:49,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:28:49,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:28:49,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:28:49,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:28:50,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:28:50,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 22:28:50,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:28:50,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:28:50,776 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:28:50,777 INFO L285 CfgBuilder]: Removed 104 assume(true) statements. [2019-11-19 22:28:50,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:28:50 BoogieIcfgContainer [2019-11-19 22:28:50,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:28:50,779 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 22:28:50,779 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 22:28:50,783 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 22:28:50,783 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:28:50,784 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 10:28:49" (1/3) ... [2019-11-19 22:28:50,785 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d4aca46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:28:50, skipping insertion in model container [2019-11-19 22:28:50,785 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:28:50,785 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:49" (2/3) ... [2019-11-19 22:28:50,786 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d4aca46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:28:50, skipping insertion in model container [2019-11-19 22:28:50,786 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:28:50,786 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:28:50" (3/3) ... [2019-11-19 22:28:50,788 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product14.cil.c [2019-11-19 22:28:50,838 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 22:28:50,838 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 22:28:50,839 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 22:28:50,839 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:28:50,839 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:28:50,839 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 22:28:50,839 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:28:50,840 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 22:28:50,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states. [2019-11-19 22:28:50,880 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2019-11-19 22:28:50,880 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:28:50,881 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:28:50,888 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 22:28:50,888 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:28:50,888 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 22:28:50,888 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states. [2019-11-19 22:28:50,894 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2019-11-19 22:28:50,894 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:28:50,895 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:28:50,895 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 22:28:50,896 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:28:50,902 INFO L794 eck$LassoCheckResult]: Stem: 27#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 4#L-1true havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~7, main_~tmp~7;havoc main_~retValue_acc~7;havoc main_~tmp~7; 46#L74true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 41#L82true main_#t~ret62 := valid_product_#res;main_~tmp~7 := main_#t~ret62;havoc main_#t~ret62; 68#L807true assume 0 != main_~tmp~7; 49#L784true havoc test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 61#L105-1true [2019-11-19 22:28:50,902 INFO L796 eck$LassoCheckResult]: Loop: 61#L105-1true assume !false; 8#L669true assume test_~splverifierCounter~0 < 4; 24#L670true test_~tmp~6 := test_#t~nondet58;havoc test_#t~nondet58; 48#L678true assume !(0 != test_~tmp~6); 50#L678-1true test_~tmp___0~1 := test_#t~nondet59;havoc test_#t~nondet59; 36#L688true assume !(0 != test_~tmp___0~1); 38#L688-1true test_~tmp___2~0 := test_#t~nondet60;havoc test_#t~nondet60; 12#L698true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 18#L706-2true assume !(0 != ~pumpRunning~0); 5#L138true assume !(0 != ~systemActive~0); 57#L145true havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;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~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 45#L864-1true __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 37#L99true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 61#L105-1true [2019-11-19 22:28:50,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:50,910 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-19 22:28:50,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:50,921 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896659631] [2019-11-19 22:28:50,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:51,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:51,370 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:28:51,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:51,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1680944970, now seen corresponding path program 1 times [2019-11-19 22:28:51,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:51,374 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731223639] [2019-11-19 22:28:51,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:28:51,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:28:51,432 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731223639] [2019-11-19 22:28:51,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:28:51,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 22:28:51,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795423754] [2019-11-19 22:28:51,439 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 22:28:51,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:28:51,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:28:51,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:28:51,459 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 3 states. [2019-11-19 22:28:51,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:28:51,511 INFO L93 Difference]: Finished difference Result 72 states and 98 transitions. [2019-11-19 22:28:51,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:28:51,514 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 98 transitions. [2019-11-19 22:28:51,518 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2019-11-19 22:28:51,524 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 65 states and 90 transitions. [2019-11-19 22:28:51,525 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2019-11-19 22:28:51,526 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2019-11-19 22:28:51,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 90 transitions. [2019-11-19 22:28:51,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:28:51,528 INFO L688 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2019-11-19 22:28:51,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 90 transitions. [2019-11-19 22:28:51,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2019-11-19 22:28:51,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-11-19 22:28:51,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2019-11-19 22:28:51,572 INFO L711 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2019-11-19 22:28:51,572 INFO L591 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2019-11-19 22:28:51,573 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 22:28:51,573 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 90 transitions. [2019-11-19 22:28:51,575 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2019-11-19 22:28:51,575 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:28:51,575 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:28:51,576 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 22:28:51,576 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:28:51,576 INFO L794 eck$LassoCheckResult]: Stem: 191#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 155#L-1 havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~7, main_~tmp~7;havoc main_~retValue_acc~7;havoc main_~tmp~7; 156#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 202#L82 main_#t~ret62 := valid_product_#res;main_~tmp~7 := main_#t~ret62;havoc main_#t~ret62; 203#L807 assume 0 != main_~tmp~7; 212#L784 havoc test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 166#L105-1 [2019-11-19 22:28:51,577 INFO L796 eck$LassoCheckResult]: Loop: 166#L105-1 assume !false; 163#L669 assume test_~splverifierCounter~0 < 4; 164#L670 test_~tmp~6 := test_#t~nondet58;havoc test_#t~nondet58; 187#L678 assume !(0 != test_~tmp~6); 211#L678-1 test_~tmp___0~1 := test_#t~nondet59;havoc test_#t~nondet59; 197#L688 assume !(0 != test_~tmp___0~1); 198#L688-1 test_~tmp___2~0 := test_#t~nondet60;havoc test_#t~nondet60; 167#L698 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 168#L706-2 assume !(0 != ~pumpRunning~0); 157#L138 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 158#L170 assume !(0 != ~pumpRunning~0); 216#L145 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;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~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 209#L864-1 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 196#L99 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 166#L105-1 [2019-11-19 22:28:51,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:51,577 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-19 22:28:51,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:51,578 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633941575] [2019-11-19 22:28:51,578 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:51,766 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:28:51,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:51,767 INFO L82 PathProgramCache]: Analyzing trace with hash -590214418, now seen corresponding path program 1 times [2019-11-19 22:28:51,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:51,768 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252770097] [2019-11-19 22:28:51,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:51,786 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:28:51,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:51,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1012825108, now seen corresponding path program 1 times [2019-11-19 22:28:51,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:51,788 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370312419] [2019-11-19 22:28:51,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:28:51,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:28:51,985 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370312419] [2019-11-19 22:28:51,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:28:51,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 22:28:51,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741694697] [2019-11-19 22:28:52,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:28:52,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 22:28:52,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 22:28:52,128 INFO L87 Difference]: Start difference. First operand 65 states and 90 transitions. cyclomatic complexity: 27 Second operand 5 states. [2019-11-19 22:28:52,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:28:52,375 INFO L93 Difference]: Finished difference Result 211 states and 300 transitions. [2019-11-19 22:28:52,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-19 22:28:52,377 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 211 states and 300 transitions. [2019-11-19 22:28:52,382 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 145 [2019-11-19 22:28:52,385 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 211 states to 211 states and 300 transitions. [2019-11-19 22:28:52,385 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 211 [2019-11-19 22:28:52,386 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 211 [2019-11-19 22:28:52,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 211 states and 300 transitions. [2019-11-19 22:28:52,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:28:52,388 INFO L688 BuchiCegarLoop]: Abstraction has 211 states and 300 transitions. [2019-11-19 22:28:52,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states and 300 transitions. [2019-11-19 22:28:52,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 124. [2019-11-19 22:28:52,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-11-19 22:28:52,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 170 transitions. [2019-11-19 22:28:52,401 INFO L711 BuchiCegarLoop]: Abstraction has 124 states and 170 transitions. [2019-11-19 22:28:52,401 INFO L591 BuchiCegarLoop]: Abstraction has 124 states and 170 transitions. [2019-11-19 22:28:52,401 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 22:28:52,401 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 124 states and 170 transitions. [2019-11-19 22:28:52,403 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 86 [2019-11-19 22:28:52,403 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:28:52,403 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:28:52,405 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 22:28:52,405 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:28:52,406 INFO L794 eck$LassoCheckResult]: Stem: 485#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1); 449#L-1 havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~7, main_~tmp~7;havoc main_~retValue_acc~7;havoc main_~tmp~7; 450#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 498#L82 main_#t~ret62 := valid_product_#res;main_~tmp~7 := main_#t~ret62;havoc main_#t~ret62; 499#L807 assume 0 != main_~tmp~7; 509#L784 havoc test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 510#L105-1 [2019-11-19 22:28:52,406 INFO L796 eck$LassoCheckResult]: Loop: 510#L105-1 assume !false; 457#L669 assume test_~splverifierCounter~0 < 4; 458#L670 test_~tmp~6 := test_#t~nondet58;havoc test_#t~nondet58; 570#L678 assume !(0 != test_~tmp~6); 568#L678-1 test_~tmp___0~1 := test_#t~nondet59;havoc test_#t~nondet59; 567#L688 assume !(0 != test_~tmp___0~1); 495#L688-1 test_~tmp___2~0 := test_#t~nondet60;havoc test_#t~nondet60; 461#L698 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 462#L706-2 assume !(0 != ~pumpRunning~0); 451#L138 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 452#L170 assume !(0 != ~pumpRunning~0); 527#L145 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;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~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 506#L864-1 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 494#L99 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 473#L896 __utac_acc__Specification3_spec__1_#t~ret2 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret2;havoc __utac_acc__Specification3_spec__1_#t~ret2; 474#L105 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 510#L105-1 [2019-11-19 22:28:52,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:52,407 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-19 22:28:52,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:52,407 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127944870] [2019-11-19 22:28:52,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:52,476 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:28:52,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:52,477 INFO L82 PathProgramCache]: Analyzing trace with hash -260366912, now seen corresponding path program 1 times [2019-11-19 22:28:52,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:52,477 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421940061] [2019-11-19 22:28:52,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:52,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:52,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:52,490 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:28:52,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:52,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1632641690, now seen corresponding path program 1 times [2019-11-19 22:28:52,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:52,491 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085821110] [2019-11-19 22:28:52,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:52,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:52,565 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:28:52,683 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2019-11-19 22:29:14,343 WARN L191 SmtUtils]: Spent 21.59 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-19 22:29:26,101 WARN L191 SmtUtils]: Spent 11.76 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-19 22:29:26,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 10:29:26 BoogieIcfgContainer [2019-11-19 22:29:26,186 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 22:29:26,187 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:29:26,187 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:29:26,187 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:29:26,188 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:28:50" (3/4) ... [2019-11-19 22:29:26,191 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 22:29:26,259 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 22:29:26,259 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:29:26,261 INFO L168 Benchmark]: Toolchain (without parser) took 37008.26 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 312.0 MB). Free memory was 957.7 MB in the beginning and 1.2 GB in the end (delta: -283.3 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:29:26,261 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:29:26,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -169.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:29:26,263 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.08 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. [2019-11-19 22:29:26,263 INFO L168 Benchmark]: Boogie Preprocessor took 39.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:29:26,264 INFO L168 Benchmark]: RCFGBuilder took 799.51 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: 56.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 11.5 GB. [2019-11-19 22:29:26,265 INFO L168 Benchmark]: BuchiAutomizer took 35407.24 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 161.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -177.0 MB). Peak memory consumption was 369.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:29:26,265 INFO L168 Benchmark]: Witness Printer took 72.67 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:29:26,269 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 606.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -169.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.08 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 39.30 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 799.51 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: 56.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35407.24 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 161.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -177.0 MB). Peak memory consumption was 369.7 MB. Max. memory is 11.5 GB. * Witness Printer took 72.67 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 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 124 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 34.8s. 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, 87 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 124 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 205 SDtfs, 399 SDslu, 325 SDs, 0 SdLazy, 82 SolverSat, 24 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: 668]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9430} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f7f6117=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73d13bde=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4792720c=0, NULL=9431, NULL=14903, NULL=0, NULL=9430, NULL=9440, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=14513, NULL=14514, methaneLevelCritical=0, NULL=14899, NULL=9449, NULL=0, tmp=0, NULL=0, NULL=9441, tmp___1=0, NULL=0, tmp___0=1, NULL=14902, tmp=0, cleanupTimeShifts=4, NULL=9439, NULL=9443, NULL=9447, NULL=9446, NULL=14900, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, retValue_acc=0, NULL=14904, NULL=0, NULL=9432, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=9444, head=0, pumpRunning=0, \result=0, NULL=14901, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c7643c3=0, NULL=9445, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, NULL=14512, NULL=0, retValue_acc=1, retValue_acc=1, tmp___2=61, tmp___0=0, splverifierCounter=0, \result=0, NULL=14511, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1fbcc661=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2857adb8=0, tmp=0, tmp___1=0, head=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d38a04b=0, NULL=9433, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@511aa18d=61, NULL=0, NULL=9434, NULL=14898, NULL=9448, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e5a53e4=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L458] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L725] int cleanupTimeShifts = 4; [L821] int waterLevel = 1; [L822] int methaneLevelCritical = 0; [L798] int retValue_acc ; [L799] int tmp ; [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L805] tmp = valid_product() [L807] COND TRUE \read(tmp) [L659] int splverifierCounter ; [L660] int tmp ; [L661] int tmp___0 ; [L662] int tmp___1 ; [L663] int tmp___2 ; [L666] splverifierCounter = 0 Loop: [L668] COND TRUE 1 [L670] COND TRUE splverifierCounter < 4 [L676] tmp = __VERIFIER_nondet_int() [L678] COND FALSE !(\read(tmp)) [L686] tmp___0 = __VERIFIER_nondet_int() [L688] COND FALSE !(\read(tmp___0)) [L696] tmp___2 = __VERIFIER_nondet_int() [L698] COND TRUE \read(tmp___2) [L284] systemActive = 1 [L138] COND FALSE !(\read(pumpRunning)) [L145] COND TRUE \read(systemActive) [L167] int tmp ; [L170] COND FALSE !(\read(pumpRunning)) [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; [L860] int retValue_acc ; [L863] retValue_acc = methaneLevelCritical [L864] return (retValue_acc); [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) [L892] int retValue_acc ; [L895] retValue_acc = waterLevel [L896] return (retValue_acc); [L103] tmp___0 = getWaterLevel() [L105] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...