./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product38.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_spec2_product38.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 8d2ada62bfae5f387fd77a4f29c02d0bf22e8cd9 ................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 03:30:22,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:30:22,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:30:22,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:30:22,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:30:22,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:30:22,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:30:22,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:30:22,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:30:22,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:30:22,859 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:30:22,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:30:22,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:30:22,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:30:22,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:30:22,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:30:22,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:30:22,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:30:22,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:30:22,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:30:22,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:30:22,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:30:22,876 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:30:22,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:30:22,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:30:22,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:30:22,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:30:22,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:30:22,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:30:22,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:30:22,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:30:22,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:30:22,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:30:22,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:30:22,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:30:22,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:30:22,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:30:22,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:30:22,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:30:22,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:30:22,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:30:22,892 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:30:22,909 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:30:22,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:30:22,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:30:22,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:30:22,911 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:30:22,912 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:30:22,912 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:30:22,912 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:30:22,913 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:30:22,913 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:30:22,913 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:30:22,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:30:22,914 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:30:22,914 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:30:22,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:30:22,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:30:22,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:30:22,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:30:22,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:30:22,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:30:22,916 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:30:22,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:30:22,916 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:30:22,917 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:30:22,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:30:22,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:30:22,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:30:22,918 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:30:22,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:30:22,918 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:30:22,919 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:30:22,920 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:30:22,920 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 -> 8d2ada62bfae5f387fd77a4f29c02d0bf22e8cd9 [2019-11-28 03:30:23,261 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:30:23,275 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:30:23,278 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:30:23,281 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:30:23,282 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:30:23,283 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c [2019-11-28 03:30:23,345 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/989011f7e/c1056b3ec0af456fb0827e28aadc6e53/FLAG13d01d012 [2019-11-28 03:30:23,820 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:30:23,821 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c [2019-11-28 03:30:23,834 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/989011f7e/c1056b3ec0af456fb0827e28aadc6e53/FLAG13d01d012 [2019-11-28 03:30:24,198 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/989011f7e/c1056b3ec0af456fb0827e28aadc6e53 [2019-11-28 03:30:24,201 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:30:24,202 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:30:24,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:30:24,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:30:24,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:30:24,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:30:24" (1/1) ... [2019-11-28 03:30:24,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@500e6159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:24, skipping insertion in model container [2019-11-28 03:30:24,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:30:24" (1/1) ... [2019-11-28 03:30:24,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:30:24,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:30:24,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:30:24,758 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:30:24,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:30:24,873 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:30:24,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:24 WrapperNode [2019-11-28 03:30:24,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:30:24,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:30:24,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:30:24,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:30:24,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:24" (1/1) ... [2019-11-28 03:30:24,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:24" (1/1) ... [2019-11-28 03:30:24,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:30:24,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:30:24,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:30:24,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:30:24,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:24" (1/1) ... [2019-11-28 03:30:24,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:24" (1/1) ... [2019-11-28 03:30:24,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:24" (1/1) ... [2019-11-28 03:30:24,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:24" (1/1) ... [2019-11-28 03:30:25,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:24" (1/1) ... [2019-11-28 03:30:25,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:24" (1/1) ... [2019-11-28 03:30:25,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:24" (1/1) ... [2019-11-28 03:30:25,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:30:25,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:30:25,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:30:25,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:30:25,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:24" (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 03:30:25,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:30:25,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 03:30:25,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:30:25,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:30:25,955 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:30:25,957 INFO L297 CfgBuilder]: Removed 160 assume(true) statements. [2019-11-28 03:30:25,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:30:25 BoogieIcfgContainer [2019-11-28 03:30:25,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:30:25,962 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:30:25,963 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:30:25,966 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:30:25,968 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:30:25,968 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:30:24" (1/3) ... [2019-11-28 03:30:25,970 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@218daebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:30:25, skipping insertion in model container [2019-11-28 03:30:25,970 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:30:25,971 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:24" (2/3) ... [2019-11-28 03:30:25,972 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@218daebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:30:25, skipping insertion in model container [2019-11-28 03:30:25,972 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:30:25,973 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:30:25" (3/3) ... [2019-11-28 03:30:25,975 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product38.cil.c [2019-11-28 03:30:26,033 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:30:26,033 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:30:26,033 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:30:26,034 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:30:26,034 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:30:26,035 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:30:26,035 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:30:26,035 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:30:26,059 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 112 states. [2019-11-28 03:30:26,089 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-11-28 03:30:26,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:30:26,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:30:26,100 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:30:26,100 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:30:26,100 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:30:26,101 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 112 states. [2019-11-28 03:30:26,108 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-11-28 03:30:26,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:30:26,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:30:26,110 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:30:26,110 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:30:26,117 INFO L794 eck$LassoCheckResult]: Stem: 89#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.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);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 10#L-1true havoc main_#res;havoc main_#t~ret27, main_~retValue_acc~5, main_~tmp~5;havoc main_~retValue_acc~5;havoc main_~tmp~5; 100#L115true 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; 102#L123true main_#t~ret27 := valid_product_#res;main_~tmp~5 := main_#t~ret27;havoc main_#t~ret27; 17#L475true assume 0 != main_~tmp~5; 97#L451true ~methAndRunningLastTime~0 := 0; 113#L57true havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 111#L68-1true [2019-11-28 03:30:26,118 INFO L796 eck$LassoCheckResult]: Loop: 111#L68-1true assume !false; 78#L336true assume test_~splverifierCounter~0 < 4; 25#L337true test_~tmp~4 := test_#t~nondet23;havoc test_#t~nondet23; 28#L345true assume !(0 != test_~tmp~4); 29#L345-1true test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 81#L355true assume !(0 != test_~tmp___0~2); 82#L355-1true test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 5#L365true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 12#L373-2true assume !(0 != ~pumpRunning~0); 80#L143true assume !(0 != ~systemActive~0); 23#L150true havoc __utac_acc__Specification2_spec__2_#t~ret0, __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 103#L533-1true __utac_acc__Specification2_spec__2_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret0;havoc __utac_acc__Specification2_spec__2_#t~ret0; 114#L68true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 111#L68-1true [2019-11-28 03:30:26,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:30:26,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 03:30:26,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:30:26,136 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709407471] [2019-11-28 03:30:26,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:30:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:30:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:30:26,521 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:30:26,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:30:26,522 INFO L82 PathProgramCache]: Analyzing trace with hash 5246667, now seen corresponding path program 1 times [2019-11-28 03:30:26,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:30:26,523 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884128064] [2019-11-28 03:30:26,523 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:30:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:30:26,605 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 03:30:26,608 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884128064] [2019-11-28 03:30:26,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:30:26,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:30:26,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710978114] [2019-11-28 03:30:26,620 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:30:26,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:30:26,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:30:26,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:30:26,647 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 3 states. [2019-11-28 03:30:26,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:30:26,722 INFO L93 Difference]: Finished difference Result 112 states and 162 transitions. [2019-11-28 03:30:26,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:30:26,726 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 112 states and 162 transitions. [2019-11-28 03:30:26,738 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2019-11-28 03:30:26,747 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 112 states to 105 states and 154 transitions. [2019-11-28 03:30:26,752 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 105 [2019-11-28 03:30:26,753 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 105 [2019-11-28 03:30:26,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 154 transitions. [2019-11-28 03:30:26,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:30:26,756 INFO L688 BuchiCegarLoop]: Abstraction has 105 states and 154 transitions. [2019-11-28 03:30:26,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 154 transitions. [2019-11-28 03:30:26,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2019-11-28 03:30:26,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-11-28 03:30:26,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 154 transitions. [2019-11-28 03:30:26,812 INFO L711 BuchiCegarLoop]: Abstraction has 105 states and 154 transitions. [2019-11-28 03:30:26,813 INFO L591 BuchiCegarLoop]: Abstraction has 105 states and 154 transitions. [2019-11-28 03:30:26,813 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:30:26,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states and 154 transitions. [2019-11-28 03:30:26,816 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2019-11-28 03:30:26,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:30:26,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:30:26,818 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:30:26,818 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:30:26,819 INFO L794 eck$LassoCheckResult]: Stem: 330#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.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);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 249#L-1 havoc main_#res;havoc main_#t~ret27, main_~retValue_acc~5, main_~tmp~5;havoc main_~retValue_acc~5;havoc main_~tmp~5; 250#L115 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; 334#L123 main_#t~ret27 := valid_product_#res;main_~tmp~5 := main_#t~ret27;havoc main_#t~ret27; 264#L475 assume 0 != main_~tmp~5; 265#L451 ~methAndRunningLastTime~0 := 0; 331#L57 havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 246#L68-1 [2019-11-28 03:30:26,819 INFO L796 eck$LassoCheckResult]: Loop: 246#L68-1 assume !false; 327#L336 assume test_~splverifierCounter~0 < 4; 272#L337 test_~tmp~4 := test_#t~nondet23;havoc test_#t~nondet23; 273#L345 assume !(0 != test_~tmp~4); 261#L345-1 test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 277#L355 assume !(0 != test_~tmp___0~2); 329#L355-1 test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 238#L365 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 240#L373-2 assume !(0 != ~pumpRunning~0); 253#L143 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 321#L201 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret3, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 266#L175-1 assume !(0 == ~pumpRunning~0); 234#L150 havoc __utac_acc__Specification2_spec__2_#t~ret0, __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 270#L533-1 __utac_acc__Specification2_spec__2_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret0;havoc __utac_acc__Specification2_spec__2_#t~ret0; 335#L68 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 246#L68-1 [2019-11-28 03:30:26,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:30:26,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 03:30:26,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:30:26,821 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174761352] [2019-11-28 03:30:26,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:30:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:30:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:30:27,031 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:30:27,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:30:27,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1693207934, now seen corresponding path program 1 times [2019-11-28 03:30:27,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:30:27,033 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608187211] [2019-11-28 03:30:27,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:30:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:30:27,069 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 03:30:27,069 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608187211] [2019-11-28 03:30:27,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:30:27,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:30:27,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499025535] [2019-11-28 03:30:27,070 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:30:27,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:30:27,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:30:27,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:30:27,072 INFO L87 Difference]: Start difference. First operand 105 states and 154 transitions. cyclomatic complexity: 51 Second operand 3 states. [2019-11-28 03:30:27,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:30:27,198 INFO L93 Difference]: Finished difference Result 149 states and 208 transitions. [2019-11-28 03:30:27,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:30:27,203 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 208 transitions. [2019-11-28 03:30:27,205 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2019-11-28 03:30:27,208 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 149 states and 208 transitions. [2019-11-28 03:30:27,208 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 149 [2019-11-28 03:30:27,209 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 149 [2019-11-28 03:30:27,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 208 transitions. [2019-11-28 03:30:27,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:30:27,210 INFO L688 BuchiCegarLoop]: Abstraction has 149 states and 208 transitions. [2019-11-28 03:30:27,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 208 transitions. [2019-11-28 03:30:27,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2019-11-28 03:30:27,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-11-28 03:30:27,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 208 transitions. [2019-11-28 03:30:27,220 INFO L711 BuchiCegarLoop]: Abstraction has 149 states and 208 transitions. [2019-11-28 03:30:27,221 INFO L591 BuchiCegarLoop]: Abstraction has 149 states and 208 transitions. [2019-11-28 03:30:27,221 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:30:27,221 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 208 transitions. [2019-11-28 03:30:27,223 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2019-11-28 03:30:27,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:30:27,223 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:30:27,224 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:30:27,225 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 03:30:27,225 INFO L794 eck$LassoCheckResult]: Stem: 594#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.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);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 509#L-1 havoc main_#res;havoc main_#t~ret27, main_~retValue_acc~5, main_~tmp~5;havoc main_~retValue_acc~5;havoc main_~tmp~5; 510#L115 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; 600#L123 main_#t~ret27 := valid_product_#res;main_~tmp~5 := main_#t~ret27;havoc main_#t~ret27; 524#L475 assume 0 != main_~tmp~5; 525#L451 ~methAndRunningLastTime~0 := 0; 597#L57 havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 506#L68-1 [2019-11-28 03:30:27,226 INFO L796 eck$LassoCheckResult]: Loop: 506#L68-1 assume !false; 590#L336 assume test_~splverifierCounter~0 < 4; 591#L337 test_~tmp~4 := test_#t~nondet23;havoc test_#t~nondet23; 641#L345 assume !(0 != test_~tmp~4); 539#L345-1 test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 540#L355 assume !(0 != test_~tmp___0~2); 593#L355-1 test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 498#L365 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 500#L373-2 assume !(0 != ~pumpRunning~0); 513#L143 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 584#L201 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret3, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 526#L175-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret22, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 527#L573-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 573#L578-1 isHighWaterLevel_#t~ret22 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret22;havoc isHighWaterLevel_#t~ret22; 589#L303-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 588#L303-5 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 547#L309-1 processEnvironment__wrappee__highWaterSensor_#t~ret3 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret3;havoc processEnvironment__wrappee__highWaterSensor_#t~ret3; 548#L179-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 531#L150 havoc __utac_acc__Specification2_spec__2_#t~ret0, __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 532#L533-1 __utac_acc__Specification2_spec__2_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret0;havoc __utac_acc__Specification2_spec__2_#t~ret0; 601#L68 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 506#L68-1 [2019-11-28 03:30:27,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:30:27,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 03:30:27,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:30:27,227 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887747455] [2019-11-28 03:30:27,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:30:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:30:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:30:27,321 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:30:27,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:30:27,322 INFO L82 PathProgramCache]: Analyzing trace with hash 446590702, now seen corresponding path program 1 times [2019-11-28 03:30:27,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:30:27,323 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618067937] [2019-11-28 03:30:27,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:30:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:30:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:30:27,341 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:30:27,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:30:27,342 INFO L82 PathProgramCache]: Analyzing trace with hash -2075234968, now seen corresponding path program 1 times [2019-11-28 03:30:27,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:30:27,343 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140962926] [2019-11-28 03:30:27,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:30:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:30:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:30:27,472 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:30:27,641 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-11-28 03:30:27,745 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-11-28 03:30:57,785 WARN L192 SmtUtils]: Spent 30.01 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 03:31:12,763 WARN L192 SmtUtils]: Spent 14.96 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 03:31:12,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:31:12 BoogieIcfgContainer [2019-11-28 03:31:12,856 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:31:12,858 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:31:12,858 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:31:12,858 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:31:12,859 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:30:25" (3/4) ... [2019-11-28 03:31:12,863 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 03:31:12,982 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 03:31:12,983 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:31:12,985 INFO L168 Benchmark]: Toolchain (without parser) took 48782.43 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 256.4 MB). Free memory was 959.0 MB in the beginning and 1.2 GB in the end (delta: -276.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:31:12,987 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:31:12,993 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 75.0 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -91.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-28 03:31:12,994 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-28 03:31:12,996 INFO L168 Benchmark]: Boogie Preprocessor took 84.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:31:12,997 INFO L168 Benchmark]: RCFGBuilder took 923.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 975.3 MB in the end (delta: 67.8 MB). Peak memory consumption was 67.8 MB. Max. memory is 11.5 GB. [2019-11-28 03:31:12,998 INFO L168 Benchmark]: BuchiAutomizer took 46894.15 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 181.4 MB). Free memory was 975.3 MB in the beginning and 1.2 GB in the end (delta: -260.5 MB). Peak memory consumption was 398.9 MB. Max. memory is 11.5 GB. [2019-11-28 03:31:12,998 INFO L168 Benchmark]: Witness Printer took 125.23 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:31:13,003 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 671.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 75.0 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -91.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 84.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 923.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 975.3 MB in the end (delta: 67.8 MB). Peak memory consumption was 67.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 46894.15 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 181.4 MB). Free memory was 975.3 MB in the beginning and 1.2 GB in the end (delta: -260.5 MB). Peak memory consumption was 398.9 MB. Max. memory is 11.5 GB. * Witness Printer took 125.23 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 149 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 46.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 46.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 149 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 311 SDtfs, 269 SDslu, 63 SDs, 0 SdLazy, 33 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 335]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1470} State at position 1 is {NULL=1491, NULL=0, NULL=1470, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@de36d7b=0, retValue_acc=0, NULL=1480, NULL=0, NULL=0, NULL=1471, NULL=1481, methaneLevelCritical=0, NULL=1484, tmp___0=0, retValue_acc=0, NULL=0, tmp=0, NULL=0, NULL=0, NULL=1486, NULL=0, NULL=1492, NULL=0, tmp___1=0, NULL=1472, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@516a2f85=0, cleanupTimeShifts=4, tmp=0, NULL=1474, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e2dad87=0, NULL=1478, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=1487, NULL=1488, retValue_acc=0, \result=0, NULL=1495, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=1476, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8b551fc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12d4ecdc=0, NULL=1483, NULL=0, NULL=1494, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@322bf3a7=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7da8fdab=62, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2094f00=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32d1b21a=0, tmp=1, NULL=1485, NULL=0, \result=1, tmp___0=0, NULL=1489, NULL=1490, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@555ea11f=0, tmp=1, retValue_acc=1, tmp___2=62, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=1473, NULL=1479, NULL=1493, tmp=0, head=0, NULL=1477, NULL=0, tmp=0, NULL=0, NULL=0, NULL=0, NULL=1482, NULL=1475} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int methAndRunningLastTime ; [L136] int pumpRunning = 0; [L137] int systemActive = 1; [L392] int cleanupTimeShifts = 4; [L490] int waterLevel = 1; [L491] int methaneLevelCritical = 0; [L753] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L466] int retValue_acc ; [L467] int tmp ; [L119] int retValue_acc ; [L122] retValue_acc = 1 [L123] return (retValue_acc); [L473] tmp = valid_product() [L475] COND TRUE \read(tmp) [L56] methAndRunningLastTime = 0 [L326] int splverifierCounter ; [L327] int tmp ; [L328] int tmp___0 ; [L329] int tmp___1 ; [L330] int tmp___2 ; [L333] splverifierCounter = 0 Loop: [L335] COND TRUE 1 [L337] COND TRUE splverifierCounter < 4 [L343] tmp = __VERIFIER_nondet_int() [L345] COND FALSE !(\read(tmp)) [L353] tmp___0 = __VERIFIER_nondet_int() [L355] COND FALSE !(\read(tmp___0)) [L363] tmp___2 = __VERIFIER_nondet_int() [L365] COND TRUE \read(tmp___2) [L317] systemActive = 1 [L143] COND FALSE !(\read(pumpRunning)) [L150] COND TRUE \read(systemActive) [L198] int tmp ; [L201] COND FALSE !(\read(pumpRunning)) [L172] int tmp ; [L175] COND TRUE ! pumpRunning [L295] int retValue_acc ; [L296] int tmp ; [L297] int tmp___0 ; [L570] int retValue_acc ; [L573] COND TRUE waterLevel < 2 [L574] retValue_acc = 1 [L575] return (retValue_acc); [L301] tmp = isHighWaterSensorDry() [L303] COND TRUE \read(tmp) [L304] tmp___0 = 0 [L308] retValue_acc = tmp___0 [L309] return (retValue_acc); [L177] tmp = isHighWaterLevel() [L179] COND FALSE !(\read(tmp)) [L61] int tmp ; [L62] int tmp___0 ; [L529] int retValue_acc ; [L532] retValue_acc = methaneLevelCritical [L533] return (retValue_acc); [L66] tmp = isMethaneLevelCritical() [L68] COND FALSE !(\read(tmp)) [L84] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...