./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product47.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 ef0694c6828fdd41a19c9b426d075f4f4dde925f ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:27:14,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:27:14,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:27:14,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:27:14,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:27:14,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:27:14,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:27:14,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:27:14,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:27:14,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:27:14,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:27:14,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:27:14,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:27:14,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:27:14,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:27:14,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:27:14,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:27:14,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:27:14,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:27:14,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:27:14,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:27:14,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:27:14,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:27:14,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:27:14,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:27:14,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:27:14,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:27:14,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:27:14,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:27:14,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:27:14,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:27:14,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:27:14,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:27:14,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:27:14,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:27:14,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:27:14,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:27:14,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:27:14,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:27:14,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:27:14,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:27:14,867 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:27:14,883 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:27:14,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:27:14,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:27:14,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:27:14,885 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:27:14,886 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:27:14,886 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:27:14,886 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:27:14,886 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:27:14,886 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:27:14,887 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:27:14,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:27:14,887 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:27:14,887 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:27:14,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:27:14,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:27:14,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:27:14,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:27:14,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:27:14,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:27:14,890 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:27:14,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:27:14,890 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:27:14,891 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:27:14,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:27:14,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:27:14,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:27:14,891 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:27:14,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:27:14,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:27:14,892 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:27:14,893 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:27:14,894 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 -> ef0694c6828fdd41a19c9b426d075f4f4dde925f [2019-11-28 03:27:15,186 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:27:15,199 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:27:15,203 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:27:15,205 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:27:15,206 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:27:15,206 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c [2019-11-28 03:27:15,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d774e237/7a422c99546741c0b2fc0bbf35ed3228/FLAG04aef3426 [2019-11-28 03:27:15,797 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:27:15,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c [2019-11-28 03:27:15,812 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d774e237/7a422c99546741c0b2fc0bbf35ed3228/FLAG04aef3426 [2019-11-28 03:27:16,096 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d774e237/7a422c99546741c0b2fc0bbf35ed3228 [2019-11-28 03:27:16,099 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:27:16,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:27:16,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:27:16,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:27:16,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:27:16,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:27:16" (1/1) ... [2019-11-28 03:27:16,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ee01756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:16, skipping insertion in model container [2019-11-28 03:27:16,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:27:16" (1/1) ... [2019-11-28 03:27:16,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:27:16,170 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:27:16,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:27:16,769 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:27:16,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:27:16,919 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:27:16,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:16 WrapperNode [2019-11-28 03:27:16,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:27:16,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:27:16,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:27:16,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:27:16,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:16" (1/1) ... [2019-11-28 03:27:16,964 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:16" (1/1) ... [2019-11-28 03:27:17,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:27:17,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:27:17,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:27:17,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:27:17,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:16" (1/1) ... [2019-11-28 03:27:17,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:16" (1/1) ... [2019-11-28 03:27:17,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:16" (1/1) ... [2019-11-28 03:27:17,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:16" (1/1) ... [2019-11-28 03:27:17,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:16" (1/1) ... [2019-11-28 03:27:17,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:16" (1/1) ... [2019-11-28 03:27:17,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:16" (1/1) ... [2019-11-28 03:27:17,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:27:17,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:27:17,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:27:17,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:27:17,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:27:17,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:27:17,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 03:27:17,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:27:17,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:27:18,046 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:27:18,047 INFO L297 CfgBuilder]: Removed 196 assume(true) statements. [2019-11-28 03:27:18,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:27:18 BoogieIcfgContainer [2019-11-28 03:27:18,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:27:18,050 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:27:18,050 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:27:18,054 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:27:18,055 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:27:18,055 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:27:16" (1/3) ... [2019-11-28 03:27:18,056 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@172ce263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:27:18, skipping insertion in model container [2019-11-28 03:27:18,057 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:27:18,057 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:16" (2/3) ... [2019-11-28 03:27:18,057 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@172ce263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:27:18, skipping insertion in model container [2019-11-28 03:27:18,058 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:27:18,058 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:27:18" (3/3) ... [2019-11-28 03:27:18,060 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product47.cil.c [2019-11-28 03:27:18,109 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:27:18,109 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:27:18,110 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:27:18,110 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:27:18,110 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:27:18,111 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:27:18,111 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:27:18,111 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:27:18,131 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 128 states. [2019-11-28 03:27:18,164 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2019-11-28 03:27:18,165 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:27:18,165 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:27:18,175 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:27:18,175 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:27:18,175 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:27:18,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 128 states. [2019-11-28 03:27:18,183 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2019-11-28 03:27:18,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:27:18,184 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:27:18,185 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:27:18,185 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:27:18,192 INFO L794 eck$LassoCheckResult]: Stem: 109#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);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(75, #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(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 16#L-1true havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 19#L103true 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; 32#L111true main_#t~ret73 := valid_product_#res;main_~tmp~9 := main_#t~ret73;havoc main_#t~ret73; 88#L947true assume 0 != main_~tmp~9; 128#L924true havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 9#L51-1true [2019-11-28 03:27:18,193 INFO L796 eck$LassoCheckResult]: Loop: 9#L51-1true assume !false; 114#L443true assume test_~splverifierCounter~0 < 4; 52#L444true test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 59#L452true assume !(0 != test_~tmp~5); 60#L452-1true test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 119#L462true assume !(0 != test_~tmp___0~2); 120#L462-1true test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 18#L472true assume 0 != test_~tmp___2~0; 127#L478-1true assume !(0 != ~pumpRunning~0); 125#L228true assume !(0 != ~systemActive~0); 48#L235true havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 113#L165-3true __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 13#L51true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 9#L51-1true [2019-11-28 03:27:18,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:27:18,201 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 03:27:18,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:27:18,211 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23534000] [2019-11-28 03:27:18,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:27:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:18,590 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:27:18,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:27:18,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1670724661, now seen corresponding path program 1 times [2019-11-28 03:27:18,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:27:18,592 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036037771] [2019-11-28 03:27:18,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:27:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:18,610 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:27:18,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:27:18,612 INFO L82 PathProgramCache]: Analyzing trace with hash 43554277, now seen corresponding path program 1 times [2019-11-28 03:27:18,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:27:18,613 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151333616] [2019-11-28 03:27:18,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:27:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:27:18,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:27:18,777 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151333616] [2019-11-28 03:27:18,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:27:18,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 03:27:18,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43918535] [2019-11-28 03:27:18,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:27:18,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 03:27:18,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 03:27:18,924 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 6 states. [2019-11-28 03:27:19,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:27:19,175 INFO L93 Difference]: Finished difference Result 300 states and 426 transitions. [2019-11-28 03:27:19,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 03:27:19,178 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 300 states and 426 transitions. [2019-11-28 03:27:19,197 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 193 [2019-11-28 03:27:19,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 300 states to 279 states and 405 transitions. [2019-11-28 03:27:19,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 279 [2019-11-28 03:27:19,224 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 279 [2019-11-28 03:27:19,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 279 states and 405 transitions. [2019-11-28 03:27:19,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:27:19,233 INFO L688 BuchiCegarLoop]: Abstraction has 279 states and 405 transitions. [2019-11-28 03:27:19,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states and 405 transitions. [2019-11-28 03:27:19,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 162. [2019-11-28 03:27:19,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-11-28 03:27:19,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 234 transitions. [2019-11-28 03:27:19,291 INFO L711 BuchiCegarLoop]: Abstraction has 162 states and 234 transitions. [2019-11-28 03:27:19,291 INFO L591 BuchiCegarLoop]: Abstraction has 162 states and 234 transitions. [2019-11-28 03:27:19,291 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:27:19,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 162 states and 234 transitions. [2019-11-28 03:27:19,294 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 112 [2019-11-28 03:27:19,294 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:27:19,294 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:27:19,295 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:27:19,295 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:27:19,296 INFO L794 eck$LassoCheckResult]: Stem: 566#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);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(75, #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(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 467#L-1 havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 468#L103 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; 472#L111 main_#t~ret73 := valid_product_#res;main_~tmp~9 := main_#t~ret73;havoc main_#t~ret73; 493#L947 assume 0 != main_~tmp~9; 551#L924 havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 457#L51-1 [2019-11-28 03:27:19,296 INFO L796 eck$LassoCheckResult]: Loop: 457#L51-1 assume !false; 458#L443 assume test_~splverifierCounter~0 < 4; 516#L444 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 517#L452 assume !(0 != test_~tmp~5); 525#L452-1 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 526#L462 assume !(0 != test_~tmp___0~2); 539#L462-1 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 469#L472 assume 0 != test_~tmp___2~0; 470#L478-1 assume !(0 != ~pumpRunning~0); 479#L228 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret14, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 563#L286 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret13, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 490#L260-1 assume !(0 == ~pumpRunning~0); 491#L235 havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 514#L165-3 __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 463#L51 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 457#L51-1 [2019-11-28 03:27:19,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:27:19,297 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 03:27:19,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:27:19,298 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302248834] [2019-11-28 03:27:19,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:27:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:19,462 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:27:19,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:27:19,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1966055757, now seen corresponding path program 1 times [2019-11-28 03:27:19,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:27:19,463 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195132410] [2019-11-28 03:27:19,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:27:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:27:19,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:27:19,483 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195132410] [2019-11-28 03:27:19,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:27:19,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:27:19,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241502010] [2019-11-28 03:27:19,485 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:27:19,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:27:19,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:27:19,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:27:19,486 INFO L87 Difference]: Start difference. First operand 162 states and 234 transitions. cyclomatic complexity: 75 Second operand 3 states. [2019-11-28 03:27:19,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:27:19,623 INFO L93 Difference]: Finished difference Result 201 states and 274 transitions. [2019-11-28 03:27:19,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:27:19,624 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 201 states and 274 transitions. [2019-11-28 03:27:19,627 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 142 [2019-11-28 03:27:19,629 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 201 states to 201 states and 274 transitions. [2019-11-28 03:27:19,630 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 201 [2019-11-28 03:27:19,630 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 201 [2019-11-28 03:27:19,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 201 states and 274 transitions. [2019-11-28 03:27:19,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:27:19,632 INFO L688 BuchiCegarLoop]: Abstraction has 201 states and 274 transitions. [2019-11-28 03:27:19,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states and 274 transitions. [2019-11-28 03:27:19,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2019-11-28 03:27:19,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2019-11-28 03:27:19,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 274 transitions. [2019-11-28 03:27:19,644 INFO L711 BuchiCegarLoop]: Abstraction has 201 states and 274 transitions. [2019-11-28 03:27:19,644 INFO L591 BuchiCegarLoop]: Abstraction has 201 states and 274 transitions. [2019-11-28 03:27:19,644 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:27:19,644 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 274 transitions. [2019-11-28 03:27:19,647 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 142 [2019-11-28 03:27:19,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:27:19,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:27:19,649 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:27:19,649 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:27:19,650 INFO L794 eck$LassoCheckResult]: Stem: 939#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);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(75, #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(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 837#L-1 havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 838#L103 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; 842#L111 main_#t~ret73 := valid_product_#res;main_~tmp~9 := main_#t~ret73;havoc main_#t~ret73; 864#L947 assume 0 != main_~tmp~9; 925#L924 havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 827#L51-1 [2019-11-28 03:27:19,650 INFO L796 eck$LassoCheckResult]: Loop: 827#L51-1 assume !false; 828#L443 assume test_~splverifierCounter~0 < 4; 889#L444 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 890#L452 assume !(0 != test_~tmp~5); 898#L452-1 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 899#L462 assume !(0 != test_~tmp___0~2); 912#L462-1 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 839#L472 assume 0 != test_~tmp___2~0; 840#L478-1 assume !(0 != ~pumpRunning~0); 943#L228 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret14, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 936#L286 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret13, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 861#L260-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 855#L205-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~4 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 856#L210-1 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 875#L405-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 910#L405-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 895#L411-1 processEnvironment__wrappee__methaneQuery_#t~ret13 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~1 := processEnvironment__wrappee__methaneQuery_#t~ret13;havoc processEnvironment__wrappee__methaneQuery_#t~ret13; 896#L264-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1); 886#L235 havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 887#L165-3 __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 833#L51 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 827#L51-1 [2019-11-28 03:27:19,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:27:19,651 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 03:27:19,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:27:19,652 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420056286] [2019-11-28 03:27:19,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:27:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:19,770 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:27:19,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:27:19,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1687938725, now seen corresponding path program 1 times [2019-11-28 03:27:19,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:27:19,771 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146655943] [2019-11-28 03:27:19,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:27:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:27:19,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:27:19,802 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146655943] [2019-11-28 03:27:19,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:27:19,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 03:27:19,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328558500] [2019-11-28 03:27:19,803 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:27:19,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:27:19,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 03:27:19,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 03:27:19,805 INFO L87 Difference]: Start difference. First operand 201 states and 274 transitions. cyclomatic complexity: 76 Second operand 4 states. [2019-11-28 03:27:19,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:27:19,919 INFO L93 Difference]: Finished difference Result 567 states and 762 transitions. [2019-11-28 03:27:19,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 03:27:19,920 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 567 states and 762 transitions. [2019-11-28 03:27:19,927 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 410 [2019-11-28 03:27:19,932 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 567 states to 567 states and 762 transitions. [2019-11-28 03:27:19,932 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 567 [2019-11-28 03:27:19,934 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 567 [2019-11-28 03:27:19,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 567 states and 762 transitions. [2019-11-28 03:27:19,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:27:19,936 INFO L688 BuchiCegarLoop]: Abstraction has 567 states and 762 transitions. [2019-11-28 03:27:19,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states and 762 transitions. [2019-11-28 03:27:19,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 213. [2019-11-28 03:27:19,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2019-11-28 03:27:19,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 286 transitions. [2019-11-28 03:27:19,956 INFO L711 BuchiCegarLoop]: Abstraction has 213 states and 286 transitions. [2019-11-28 03:27:19,956 INFO L591 BuchiCegarLoop]: Abstraction has 213 states and 286 transitions. [2019-11-28 03:27:19,956 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 03:27:19,957 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 213 states and 286 transitions. [2019-11-28 03:27:19,958 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 150 [2019-11-28 03:27:19,959 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:27:19,959 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:27:19,961 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:27:19,961 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:27:19,962 INFO L794 eck$LassoCheckResult]: Stem: 1727#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);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(75, #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(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1616#L-1 havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 1617#L103 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; 1621#L111 main_#t~ret73 := valid_product_#res;main_~tmp~9 := main_#t~ret73;havoc main_#t~ret73; 1647#L947 assume 0 != main_~tmp~9; 1713#L924 havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1604#L51-1 [2019-11-28 03:27:19,962 INFO L796 eck$LassoCheckResult]: Loop: 1604#L51-1 assume !false; 1605#L443 assume test_~splverifierCounter~0 < 4; 1730#L444 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 1805#L452 assume !(0 != test_~tmp~5); 1803#L452-1 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 1802#L462 assume !(0 != test_~tmp___0~2); 1800#L462-1 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 1798#L472 assume 0 != test_~tmp___2~0; 1797#L478-1 assume !(0 != ~pumpRunning~0); 1733#L228 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret14, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1724#L286 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret13, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1644#L260-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 1636#L205-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~4 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 1637#L210-1 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 1696#L405-3 assume !(0 != isHighWaterLevel_~tmp~4);isHighWaterLevel_~tmp___0~1 := 1; 1697#L405-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 1681#L411-1 processEnvironment__wrappee__methaneQuery_#t~ret13 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~1 := processEnvironment__wrappee__methaneQuery_#t~ret13;havoc processEnvironment__wrappee__methaneQuery_#t~ret13; 1682#L264-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1); 1675#L235 havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 1729#L165-3 __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 1611#L51 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 1604#L51-1 [2019-11-28 03:27:19,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:27:19,963 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-11-28 03:27:19,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:27:19,963 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645381620] [2019-11-28 03:27:19,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:27:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:20,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:20,063 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:27:20,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:27:20,064 INFO L82 PathProgramCache]: Analyzing trace with hash 87068637, now seen corresponding path program 1 times [2019-11-28 03:27:20,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:27:20,065 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899776465] [2019-11-28 03:27:20,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:27:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:27:20,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:27:20,122 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899776465] [2019-11-28 03:27:20,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:27:20,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 03:27:20,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775940092] [2019-11-28 03:27:20,123 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:27:20,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:27:20,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 03:27:20,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 03:27:20,125 INFO L87 Difference]: Start difference. First operand 213 states and 286 transitions. cyclomatic complexity: 76 Second operand 5 states. [2019-11-28 03:27:20,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:27:20,311 INFO L93 Difference]: Finished difference Result 525 states and 699 transitions. [2019-11-28 03:27:20,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 03:27:20,312 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 525 states and 699 transitions. [2019-11-28 03:27:20,317 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 382 [2019-11-28 03:27:20,322 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 525 states to 525 states and 699 transitions. [2019-11-28 03:27:20,322 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 525 [2019-11-28 03:27:20,323 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 525 [2019-11-28 03:27:20,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 525 states and 699 transitions. [2019-11-28 03:27:20,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:27:20,324 INFO L688 BuchiCegarLoop]: Abstraction has 525 states and 699 transitions. [2019-11-28 03:27:20,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states and 699 transitions. [2019-11-28 03:27:20,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 231. [2019-11-28 03:27:20,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2019-11-28 03:27:20,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 304 transitions. [2019-11-28 03:27:20,342 INFO L711 BuchiCegarLoop]: Abstraction has 231 states and 304 transitions. [2019-11-28 03:27:20,343 INFO L591 BuchiCegarLoop]: Abstraction has 231 states and 304 transitions. [2019-11-28 03:27:20,343 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 03:27:20,343 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states and 304 transitions. [2019-11-28 03:27:20,345 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 162 [2019-11-28 03:27:20,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:27:20,345 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:27:20,347 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:27:20,347 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:27:20,348 INFO L794 eck$LassoCheckResult]: Stem: 2492#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);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(75, #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(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 2369#L-1 havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 2370#L103 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; 2374#L111 main_#t~ret73 := valid_product_#res;main_~tmp~9 := main_#t~ret73;havoc main_#t~ret73; 2401#L947 assume 0 != main_~tmp~9; 2474#L924 havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2357#L51-1 [2019-11-28 03:27:20,348 INFO L796 eck$LassoCheckResult]: Loop: 2357#L51-1 assume !false; 2358#L443 assume test_~splverifierCounter~0 < 4; 2559#L444 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 2575#L452 assume !(0 != test_~tmp~5); 2573#L452-1 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 2572#L462 assume !(0 != test_~tmp___0~2); 2570#L462-1 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 2568#L472 assume 0 != test_~tmp___2~0; 2501#L478-1 assume !(0 != ~pumpRunning~0); 2500#L228 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret14, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 2489#L286 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret13, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 2397#L260-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 2389#L205-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 2391#L210-1 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 2412#L405-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 2505#L405-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 2437#L411-1 processEnvironment__wrappee__methaneQuery_#t~ret13 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~1 := processEnvironment__wrappee__methaneQuery_#t~ret13;havoc processEnvironment__wrappee__methaneQuery_#t~ret13; 2438#L264-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1); 2423#L235 havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 2424#L165-3 __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 2364#L51 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 2357#L51-1 [2019-11-28 03:27:20,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:27:20,352 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 5 times [2019-11-28 03:27:20,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:27:20,353 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022743081] [2019-11-28 03:27:20,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:27:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:20,436 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:27:20,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:27:20,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1926970201, now seen corresponding path program 1 times [2019-11-28 03:27:20,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:27:20,438 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466985529] [2019-11-28 03:27:20,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:27:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:20,451 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:27:20,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:27:20,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1911925901, now seen corresponding path program 1 times [2019-11-28 03:27:20,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:27:20,452 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487999611] [2019-11-28 03:27:20,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:27:20,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:27:20,527 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:27:20,671 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-11-28 03:27:41,524 WARN L192 SmtUtils]: Spent 20.79 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 03:27:55,240 WARN L192 SmtUtils]: Spent 13.71 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 03:27:55,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:27:55 BoogieIcfgContainer [2019-11-28 03:27:55,312 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:27:55,313 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:27:55,313 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:27:55,313 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:27:55,314 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:27:18" (3/4) ... [2019-11-28 03:27:55,317 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 03:27:55,381 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 03:27:55,381 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:27:55,383 INFO L168 Benchmark]: Toolchain (without parser) took 39282.00 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 326.1 MB). Free memory was 960.4 MB in the beginning and 1.2 GB in the end (delta: -231.9 MB). Peak memory consumption was 94.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:27:55,384 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:27:55,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 817.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -170.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-28 03:27:55,385 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.43 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-28 03:27:55,386 INFO L168 Benchmark]: Boogie Preprocessor took 72.88 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 03:27:55,387 INFO L168 Benchmark]: RCFGBuilder took 952.80 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: 73.6 MB). Peak memory consumption was 73.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:27:55,388 INFO L168 Benchmark]: BuchiAutomizer took 37262.53 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 176.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -145.2 MB). Peak memory consumption was 388.8 MB. Max. memory is 11.5 GB. [2019-11-28 03:27:55,388 INFO L168 Benchmark]: Witness Printer took 68.50 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2019-11-28 03:27:55,392 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 817.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -170.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 102.43 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.88 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 952.80 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: 73.6 MB). Peak memory consumption was 73.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 37262.53 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 176.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -145.2 MB). Peak memory consumption was 388.8 MB. Max. memory is 11.5 GB. * Witness Printer took 68.50 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 231 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 37.1s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 36.1s. Construction of modules took 0.4s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 765 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 231 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 937 SDtfs, 1680 SDslu, 1782 SDs, 0 SdLazy, 229 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 442]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3992} State at position 1 is {NULL=0, NULL=4008, NULL=3992, NULL=0, NULL=0, NULL=4014, methaneLevelCritical=0, NULL=3994, tmp___0=0, NULL=0, NULL=0, tmp=0, NULL=0, NULL=0, NULL=4015, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61f58fd7=0, tmp___1=0, NULL=0, NULL=0, NULL=0, NULL=4009, tmp___0=0, NULL=4007, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ac6135e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@895b459=62, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@492c4ee=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@160414fa=0, NULL=0, systemActive=1, waterLevel=1, NULL=4012, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@550f2f37=0, NULL=0, NULL=0, NULL=3995, NULL=0, NULL=4017, \result=0, retValue_acc=0, NULL=0, NULL=4016, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=4001, \result=1, NULL=3999, head=0, pumpRunning=0, NULL=4005, \result=0, retValue_acc=1, NULL=3997, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e0062f7=0, NULL=0, tmp=0, \result=1, NULL=3998, NULL=4000, NULL=3996, tmp=1, retValue_acc=1, tmp___2=62, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42bfec41=0, tmp___0=0, NULL=4003, NULL=4006, splverifierCounter=0, NULL=0, \result=0, NULL=4002, NULL=4010, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c2cf3ee=0, NULL=3993, tmp=0, head=0, tmp=0, NULL=0, NULL=0, NULL=4011, NULL=0, tmp=1, NULL=0, NULL=4013, NULL=0, NULL=4004, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@783f78bf=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L122] int waterLevel = 1; [L123] int methaneLevelCritical = 0; [L221] int pumpRunning = 0; [L222] int systemActive = 1; [L668] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L865] int cleanupTimeShifts = 4; [L938] int retValue_acc ; [L939] int tmp ; [L107] int retValue_acc ; [L110] retValue_acc = 1 [L111] return (retValue_acc); [L945] tmp = valid_product() [L947] COND TRUE \read(tmp) [L433] int splverifierCounter ; [L434] int tmp ; [L435] int tmp___0 ; [L436] int tmp___1 ; [L437] int tmp___2 ; [L440] splverifierCounter = 0 Loop: [L442] COND TRUE 1 [L444] COND TRUE splverifierCounter < 4 [L450] tmp = __VERIFIER_nondet_int() [L452] COND FALSE !(\read(tmp)) [L460] tmp___0 = __VERIFIER_nondet_int() [L462] COND FALSE !(\read(tmp___0)) [L470] tmp___2 = __VERIFIER_nondet_int() [L472] COND TRUE \read(tmp___2) [L228] COND FALSE !(\read(pumpRunning)) [L235] COND TRUE \read(systemActive) [L283] int tmp ; [L286] COND FALSE !(\read(pumpRunning)) [L257] int tmp ; [L260] COND TRUE ! pumpRunning [L397] int retValue_acc ; [L398] int tmp ; [L399] int tmp___0 ; [L202] int retValue_acc ; [L205] COND TRUE waterLevel < 2 [L206] retValue_acc = 1 [L207] return (retValue_acc); [L403] tmp = isHighWaterSensorDry() [L405] COND TRUE \read(tmp) [L406] tmp___0 = 0 [L410] retValue_acc = tmp___0 [L411] return (retValue_acc); [L262] tmp = isHighWaterLevel() [L264] COND FALSE !(\read(tmp)) [L44] int tmp ; [L45] int tmp___0 ; [L161] int retValue_acc ; [L164] retValue_acc = methaneLevelCritical [L165] return (retValue_acc); [L49] tmp = isMethaneLevelCritical() [L51] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...