./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c 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_spec5_product17.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 dcdc175f36a7a4b619ef1dcf44a5e5edbf0f1a99 ...................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-11-28 21:12:33,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:12:33,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:12:33,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:12:33,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:12:33,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:12:33,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:12:33,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:12:33,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:12:33,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:12:33,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:12:33,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:12:33,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:12:33,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:12:33,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:12:33,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:12:33,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:12:33,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:12:33,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:12:33,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:12:33,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:12:33,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:12:33,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:12:33,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:12:33,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:12:33,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:12:33,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:12:33,927 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:12:33,927 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:12:33,928 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:12:33,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:12:33,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:12:33,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:12:33,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:12:33,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:12:33,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:12:33,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:12:33,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:12:33,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:12:33,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:12:33,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:12:33,937 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:12:33,956 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:12:33,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:12:33,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:12:33,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:12:33,958 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:12:33,958 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:12:33,959 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:12:33,959 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:12:33,959 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:12:33,959 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:12:33,960 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:12:33,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:12:33,960 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:12:33,960 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:12:33,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:12:33,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:12:33,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:12:33,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:12:33,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:12:33,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:12:33,962 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:12:33,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:12:33,962 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:12:33,963 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:12:33,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:12:33,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:12:33,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:12:33,963 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:12:33,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:12:33,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:12:33,964 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:12:33,964 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:12:33,966 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:12:33,966 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 -> dcdc175f36a7a4b619ef1dcf44a5e5edbf0f1a99 [2019-11-28 21:12:34,320 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:12:34,347 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:12:34,351 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:12:34,352 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:12:34,353 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:12:34,354 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product17.cil.c [2019-11-28 21:12:34,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80119a4f5/fd6f87d7583b4f2ba4e2dbb33e6237a2/FLAGa0571c170 [2019-11-28 21:12:34,978 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:12:34,979 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product17.cil.c [2019-11-28 21:12:34,999 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80119a4f5/fd6f87d7583b4f2ba4e2dbb33e6237a2/FLAGa0571c170 [2019-11-28 21:12:35,253 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80119a4f5/fd6f87d7583b4f2ba4e2dbb33e6237a2 [2019-11-28 21:12:35,256 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:12:35,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:12:35,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:12:35,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:12:35,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:12:35,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:12:35" (1/1) ... [2019-11-28 21:12:35,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce269f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:35, skipping insertion in model container [2019-11-28 21:12:35,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:12:35" (1/1) ... [2019-11-28 21:12:35,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:12:35,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:12:35,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:12:35,719 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:12:35,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:12:35,926 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:12:35,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:35 WrapperNode [2019-11-28 21:12:35,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:12:35,930 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:12:35,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:12:35,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:12:35,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:35" (1/1) ... [2019-11-28 21:12:35,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:35" (1/1) ... [2019-11-28 21:12:35,999 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:12:35,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:12:35,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:12:36,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:12:36,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:35" (1/1) ... [2019-11-28 21:12:36,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:35" (1/1) ... [2019-11-28 21:12:36,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:35" (1/1) ... [2019-11-28 21:12:36,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:35" (1/1) ... [2019-11-28 21:12:36,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:35" (1/1) ... [2019-11-28 21:12:36,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:35" (1/1) ... [2019-11-28 21:12:36,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:35" (1/1) ... [2019-11-28 21:12:36,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:12:36,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:12:36,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:12:36,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:12:36,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:35" (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 21:12:36,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:12:36,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:12:36,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:12:36,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:12:36,833 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:12:36,834 INFO L287 CfgBuilder]: Removed 110 assume(true) statements. [2019-11-28 21:12:36,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:12:36 BoogieIcfgContainer [2019-11-28 21:12:36,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:12:36,836 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:12:36,837 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:12:36,840 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:12:36,841 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:12:36,842 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:12:35" (1/3) ... [2019-11-28 21:12:36,843 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b68879d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:12:36, skipping insertion in model container [2019-11-28 21:12:36,844 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:12:36,844 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:35" (2/3) ... [2019-11-28 21:12:36,844 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b68879d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:12:36, skipping insertion in model container [2019-11-28 21:12:36,845 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:12:36,845 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:12:36" (3/3) ... [2019-11-28 21:12:36,847 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product17.cil.c [2019-11-28 21:12:36,890 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:12:36,890 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:12:36,890 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:12:36,890 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:12:36,891 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:12:36,891 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:12:36,891 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:12:36,892 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:12:36,913 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states. [2019-11-28 21:12:36,940 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-11-28 21:12:36,941 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:12:36,941 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:12:36,948 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:36,948 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:36,949 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:12:36,949 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states. [2019-11-28 21:12:36,955 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-11-28 21:12:36,955 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:12:36,955 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:12:36,956 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:36,956 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:36,962 INFO L794 eck$LassoCheckResult]: Stem: 42#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(13);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string43.base, #t~string43.offset, 1);call write~init~int(77, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(101, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(116, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(104, #t~string43.base, 4 + #t~string43.offset, 1);call write~init~int(58, #t~string43.base, 5 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 6 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string45.base, #t~string45.offset, 1);call write~init~int(82, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(73, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(84, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 4 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(75, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string49.base, #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 1 + #t~string49.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 8#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 72#L543true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 76#L551true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 46#L132true assume 0 != main_~tmp~0; 34#L103true ~switchedOnBeforeTS~0 := 0; 40#L564true havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 14#L585-1true [2019-11-28 21:12:36,963 INFO L796 eck$LassoCheckResult]: Loop: 14#L585-1true assume !false; 47#L868true assume test_~splverifierCounter~0 < 4; 82#L869true test_~tmp~7 := test_#t~nondet69;havoc test_#t~nondet69; 6#L877true assume !(0 != test_~tmp~7); 7#L877-1true test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 66#L887true assume !(0 != test_~tmp___0~2); 69#L887-1true test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 53#L897true assume 0 != test_~tmp___2~0; 26#L903-2true havoc __utac_acc__Specification5_spec__2_#t~ret37;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 16#L797true __utac_acc__Specification5_spec__2_#t~ret37 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret37;havoc __utac_acc__Specification5_spec__2_#t~ret37; 12#L574true assume !(0 != ~pumpRunning~0); 75#L712true assume !(0 != ~systemActive~0); 83#L719true havoc __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_#t~ret39, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 62#L686true __utac_acc__Specification5_spec__3_#t~ret38 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret38;havoc __utac_acc__Specification5_spec__3_#t~ret38; 10#L585true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 14#L585-1true [2019-11-28 21:12:36,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:36,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:12:36,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:36,980 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922450663] [2019-11-28 21:12:36,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:37,382 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:37,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:37,384 INFO L82 PathProgramCache]: Analyzing trace with hash 94196908, now seen corresponding path program 1 times [2019-11-28 21:12:37,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:37,385 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578417444] [2019-11-28 21:12:37,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:37,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:37,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:37,402 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:37,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:37,405 INFO L82 PathProgramCache]: Analyzing trace with hash 2028222118, now seen corresponding path program 1 times [2019-11-28 21:12:37,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:37,406 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528823876] [2019-11-28 21:12:37,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:12:37,581 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 21:12:37,583 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528823876] [2019-11-28 21:12:37,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:12:37,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 21:12:37,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265094505] [2019-11-28 21:12:37,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:12:37,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 21:12:37,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 21:12:37,765 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 6 states. [2019-11-28 21:12:37,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:12:37,929 INFO L93 Difference]: Finished difference Result 81 states and 109 transitions. [2019-11-28 21:12:37,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 21:12:37,935 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 109 transitions. [2019-11-28 21:12:37,939 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-11-28 21:12:37,945 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 74 states and 102 transitions. [2019-11-28 21:12:37,947 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 74 [2019-11-28 21:12:37,948 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 74 [2019-11-28 21:12:37,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 102 transitions. [2019-11-28 21:12:37,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:12:37,950 INFO L688 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2019-11-28 21:12:37,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 102 transitions. [2019-11-28 21:12:37,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2019-11-28 21:12:37,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-11-28 21:12:37,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2019-11-28 21:12:37,985 INFO L711 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2019-11-28 21:12:37,985 INFO L591 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2019-11-28 21:12:37,985 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:12:37,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 102 transitions. [2019-11-28 21:12:37,987 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-11-28 21:12:37,987 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:12:37,988 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:12:37,989 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:37,989 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:37,989 INFO L794 eck$LassoCheckResult]: Stem: 233#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(13);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string43.base, #t~string43.offset, 1);call write~init~int(77, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(101, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(116, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(104, #t~string43.base, 4 + #t~string43.offset, 1);call write~init~int(58, #t~string43.base, 5 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 6 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string45.base, #t~string45.offset, 1);call write~init~int(82, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(73, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(84, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 4 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(75, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string49.base, #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 1 + #t~string49.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 192#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 193#L543 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 253#L551 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 235#L132 assume 0 != main_~tmp~0; 224#L103 ~switchedOnBeforeTS~0 := 0; 225#L564 havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 195#L585-1 [2019-11-28 21:12:37,990 INFO L796 eck$LassoCheckResult]: Loop: 195#L585-1 assume !false; 203#L868 assume test_~splverifierCounter~0 < 4; 236#L869 test_~tmp~7 := test_#t~nondet69;havoc test_#t~nondet69; 186#L877 assume !(0 != test_~tmp~7); 188#L877-1 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 189#L887 assume !(0 != test_~tmp___0~2); 240#L887-1 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 241#L897 assume 0 != test_~tmp___2~0; 214#L903-2 havoc __utac_acc__Specification5_spec__2_#t~ret37;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 204#L797 __utac_acc__Specification5_spec__2_#t~ret37 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret37;havoc __utac_acc__Specification5_spec__2_#t~ret37; 198#L574 assume !(0 != ~pumpRunning~0); 199#L712 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 242#L744 assume !(0 != ~pumpRunning~0); 243#L719 havoc __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_#t~ret39, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 250#L686 __utac_acc__Specification5_spec__3_#t~ret38 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret38;havoc __utac_acc__Specification5_spec__3_#t~ret38; 194#L585 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 195#L585-1 [2019-11-28 21:12:37,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:37,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:12:37,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:37,991 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809742524] [2019-11-28 21:12:37,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:38,143 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:38,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:38,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1401856253, now seen corresponding path program 1 times [2019-11-28 21:12:38,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:38,144 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050873469] [2019-11-28 21:12:38,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:38,158 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:38,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:38,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1576616887, now seen corresponding path program 1 times [2019-11-28 21:12:38,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:38,160 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946587653] [2019-11-28 21:12:38,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:12:38,228 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 21:12:38,229 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946587653] [2019-11-28 21:12:38,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:12:38,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:12:38,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178115075] [2019-11-28 21:12:38,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:12:38,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:12:38,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:12:38,336 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. cyclomatic complexity: 30 Second operand 5 states. [2019-11-28 21:12:38,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:12:38,562 INFO L93 Difference]: Finished difference Result 210 states and 288 transitions. [2019-11-28 21:12:38,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 21:12:38,564 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 288 transitions. [2019-11-28 21:12:38,570 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2019-11-28 21:12:38,573 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 210 states and 288 transitions. [2019-11-28 21:12:38,574 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 210 [2019-11-28 21:12:38,575 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 210 [2019-11-28 21:12:38,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 210 states and 288 transitions. [2019-11-28 21:12:38,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:12:38,578 INFO L688 BuchiCegarLoop]: Abstraction has 210 states and 288 transitions. [2019-11-28 21:12:38,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states and 288 transitions. [2019-11-28 21:12:38,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 141. [2019-11-28 21:12:38,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2019-11-28 21:12:38,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 190 transitions. [2019-11-28 21:12:38,592 INFO L711 BuchiCegarLoop]: Abstraction has 141 states and 190 transitions. [2019-11-28 21:12:38,592 INFO L591 BuchiCegarLoop]: Abstraction has 141 states and 190 transitions. [2019-11-28 21:12:38,592 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:12:38,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states and 190 transitions. [2019-11-28 21:12:38,594 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2019-11-28 21:12:38,595 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:12:38,595 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:12:38,596 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:38,596 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:38,596 INFO L794 eck$LassoCheckResult]: Stem: 540#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(13);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string43.base, #t~string43.offset, 1);call write~init~int(77, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(101, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(116, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(104, #t~string43.base, 4 + #t~string43.offset, 1);call write~init~int(58, #t~string43.base, 5 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 6 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string45.base, #t~string45.offset, 1);call write~init~int(82, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(73, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(84, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 4 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(75, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string49.base, #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 1 + #t~string49.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 491#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 492#L543 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 571#L551 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 543#L132 assume 0 != main_~tmp~0; 530#L103 ~switchedOnBeforeTS~0 := 0; 531#L564 havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 504#L585-1 [2019-11-28 21:12:38,597 INFO L796 eck$LassoCheckResult]: Loop: 504#L585-1 assume !false; 505#L868 assume test_~splverifierCounter~0 < 4; 544#L869 test_~tmp~7 := test_#t~nondet69;havoc test_#t~nondet69; 486#L877 assume !(0 != test_~tmp~7); 488#L877-1 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 617#L887 assume !(0 != test_~tmp___0~2); 614#L887-1 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 613#L897 assume 0 != test_~tmp___2~0; 522#L903-2 havoc __utac_acc__Specification5_spec__2_#t~ret37;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 523#L797 __utac_acc__Specification5_spec__2_#t~ret37 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret37;havoc __utac_acc__Specification5_spec__2_#t~ret37; 598#L574 assume !(0 != ~pumpRunning~0); 594#L712 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 552#L744 assume !(0 != ~pumpRunning~0); 553#L719 havoc __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_#t~ret39, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 577#L686 __utac_acc__Specification5_spec__3_#t~ret38 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret38;havoc __utac_acc__Specification5_spec__3_#t~ret38; 495#L585 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 496#L797-1 __utac_acc__Specification5_spec__3_#t~ret39 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret39;havoc __utac_acc__Specification5_spec__3_#t~ret39; 526#L589 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 504#L585-1 [2019-11-28 21:12:38,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:38,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 21:12:38,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:38,598 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382564315] [2019-11-28 21:12:38,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:38,678 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:38,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:38,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1435857662, now seen corresponding path program 1 times [2019-11-28 21:12:38,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:38,682 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024719955] [2019-11-28 21:12:38,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:38,696 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:38,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:38,697 INFO L82 PathProgramCache]: Analyzing trace with hash 994612932, now seen corresponding path program 1 times [2019-11-28 21:12:38,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:38,698 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169055796] [2019-11-28 21:12:38,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:38,845 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:38,986 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2019-11-28 21:13:07,176 WARN L192 SmtUtils]: Spent 28.12 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:13:20,876 WARN L192 SmtUtils]: Spent 13.69 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:13:20,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:13:20 BoogieIcfgContainer [2019-11-28 21:13:20,951 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:13:20,952 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:13:20,952 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:13:20,952 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:13:20,953 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:12:36" (3/4) ... [2019-11-28 21:13:20,956 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:13:21,058 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:13:21,059 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:13:21,060 INFO L168 Benchmark]: Toolchain (without parser) took 45803.41 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 307.8 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -180.8 MB). Peak memory consumption was 127.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:21,061 INFO L168 Benchmark]: CDTParser took 0.26 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 21:13:21,062 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:21,062 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:21,063 INFO L168 Benchmark]: Boogie Preprocessor took 46.41 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 21:13:21,063 INFO L168 Benchmark]: RCFGBuilder took 789.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.1 MB). Peak memory consumption was 57.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:21,064 INFO L168 Benchmark]: BuchiAutomizer took 44114.93 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 161.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -76.5 MB). Peak memory consumption was 377.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:21,065 INFO L168 Benchmark]: Witness Printer took 106.96 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:21,068 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 671.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.41 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 789.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.1 MB). Peak memory consumption was 57.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 44114.93 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 161.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -76.5 MB). Peak memory consumption was 377.9 MB. Max. memory is 11.5 GB. * Witness Printer took 106.96 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 141 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 44.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 43.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 69 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 141 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 260 SDtfs, 640 SDslu, 300 SDs, 0 SdLazy, 90 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 867]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9184} State at position 1 is {NULL=0, NULL=0, NULL=9199, NULL=0, retValue_acc=0, NULL=9184, NULL=0, NULL=0, NULL=0, NULL=9207, NULL=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6227c76e=0, NULL=0, NULL=9200, NULL=9197, tmp=1, tmp=0, NULL=0, tmp___1=0, NULL=9204, NULL=9191, NULL=9185, NULL=9188, retValue_acc=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=9209, NULL=9198, \result=0, NULL=9194, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2eb46170=0, NULL=0, NULL=9196, NULL=0, NULL=0, NULL=0, tmp___0=0, \result=1, head=0, pumpRunning=0, tmp=1, NULL=9193, NULL=9195, \result=0, NULL=9203, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5864334d=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16b115ff=0, NULL=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17b322ef=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52c81523=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4afb190b=0, NULL=9205, NULL=9208, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21de53fa=61, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33f1083d=0, NULL=9186, retValue_acc=1, tmp___2=61, tmp___0=0, NULL=9190, splverifierCounter=0, NULL=0, NULL=9189, head=0, NULL=0, tmp=0, NULL=9202, NULL=0, NULL=9187, NULL=0, NULL=9201, NULL=0, NULL=0, NULL=9206, NULL=9192} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L315] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L558] int switchedOnBeforeTS ; [L611] int waterLevel = 1; [L612] int methaneLevelCritical = 0; [L702] int pumpRunning = 0; [L703] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L547] int retValue_acc ; [L550] retValue_acc = 1 [L551] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L563] switchedOnBeforeTS = 0 [L858] int splverifierCounter ; [L859] int tmp ; [L860] int tmp___0 ; [L861] int tmp___1 ; [L862] int tmp___2 ; [L865] splverifierCounter = 0 Loop: [L867] COND TRUE 1 [L869] COND TRUE splverifierCounter < 4 [L875] tmp = __VERIFIER_nondet_int() [L877] COND FALSE !(\read(tmp)) [L885] tmp___0 = __VERIFIER_nondet_int() [L887] COND FALSE !(\read(tmp___0)) [L895] tmp___2 = __VERIFIER_nondet_int() [L897] COND TRUE \read(tmp___2) [L793] int retValue_acc ; [L796] retValue_acc = pumpRunning [L797] return (retValue_acc); [L572] switchedOnBeforeTS = isPumpRunning() [L712] COND FALSE !(\read(pumpRunning)) [L719] COND TRUE \read(systemActive) [L741] int tmp ; [L744] COND FALSE !(\read(pumpRunning)) [L578] int tmp ; [L579] int tmp___0 ; [L682] int retValue_acc ; [L685] retValue_acc = waterLevel [L686] return (retValue_acc); [L583] tmp = getWaterLevel() [L585] COND TRUE tmp != 2 [L793] int retValue_acc ; [L796] retValue_acc = pumpRunning [L797] return (retValue_acc); [L587] tmp___0 = isPumpRunning() [L589] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...