./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product45.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_product45.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 37cb317c3bc7664ed231fa78380e175cc6a4d8af ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:14:08,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:14:08,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:14:08,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:14:08,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:14:08,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:14:08,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:14:08,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:14:08,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:14:08,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:14:08,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:14:08,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:14:08,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:14:08,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:14:08,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:14:08,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:14:08,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:14:08,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:14:08,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:14:08,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:14:08,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:14:08,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:14:08,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:14:08,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:14:08,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:14:08,948 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:14:08,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:14:08,950 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:14:08,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:14:08,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:14:08,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:14:08,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:14:08,953 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:14:08,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:14:08,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:14:08,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:14:08,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:14:08,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:14:08,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:14:08,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:14:08,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:14:08,960 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:14:08,997 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:14:08,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:14:08,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:14:08,999 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:14:08,999 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:14:08,999 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:14:09,000 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:14:09,003 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:14:09,003 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:14:09,003 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:14:09,003 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:14:09,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:14:09,005 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:14:09,005 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:14:09,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:14:09,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:14:09,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:14:09,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:14:09,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:14:09,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:14:09,007 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:14:09,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:14:09,008 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:14:09,008 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:14:09,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:14:09,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:14:09,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:14:09,009 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:14:09,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:14:09,010 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:14:09,010 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:14:09,011 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:14:09,012 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:14:09,013 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 -> 37cb317c3bc7664ed231fa78380e175cc6a4d8af [2019-11-28 21:14:09,317 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:14:09,333 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:14:09,337 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:14:09,338 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:14:09,339 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:14:09,340 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c [2019-11-28 21:14:09,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db2843f09/6fc378fe03dd4c0185c626eec440540a/FLAGb42b2e73d [2019-11-28 21:14:09,955 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:14:09,956 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c [2019-11-28 21:14:09,970 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db2843f09/6fc378fe03dd4c0185c626eec440540a/FLAGb42b2e73d [2019-11-28 21:14:10,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db2843f09/6fc378fe03dd4c0185c626eec440540a [2019-11-28 21:14:10,259 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:14:10,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:14:10,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:14:10,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:14:10,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:14:10,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:14:10" (1/1) ... [2019-11-28 21:14:10,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a27607f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:10, skipping insertion in model container [2019-11-28 21:14:10,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:14:10" (1/1) ... [2019-11-28 21:14:10,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:14:10,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:14:10,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:14:10,794 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:14:10,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:14:10,921 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:14:10,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:10 WrapperNode [2019-11-28 21:14:10,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:14:10,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:14:10,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:14:10,923 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:14:10,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:10" (1/1) ... [2019-11-28 21:14:10,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:10" (1/1) ... [2019-11-28 21:14:11,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:14:11,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:14:11,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:14:11,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:14:11,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:10" (1/1) ... [2019-11-28 21:14:11,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:10" (1/1) ... [2019-11-28 21:14:11,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:10" (1/1) ... [2019-11-28 21:14:11,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:10" (1/1) ... [2019-11-28 21:14:11,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:10" (1/1) ... [2019-11-28 21:14:11,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:10" (1/1) ... [2019-11-28 21:14:11,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:10" (1/1) ... [2019-11-28 21:14:11,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:14:11,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:14:11,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:14:11,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:14:11,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:10" (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 21:14:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:14:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:14:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:14:11,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:14:12,176 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:14:12,178 INFO L287 CfgBuilder]: Removed 206 assume(true) statements. [2019-11-28 21:14:12,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:14:12 BoogieIcfgContainer [2019-11-28 21:14:12,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:14:12,180 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:14:12,180 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:14:12,184 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:14:12,185 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:14:12,185 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:14:10" (1/3) ... [2019-11-28 21:14:12,186 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d9b9576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:14:12, skipping insertion in model container [2019-11-28 21:14:12,187 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:14:12,187 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:14:10" (2/3) ... [2019-11-28 21:14:12,187 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d9b9576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:14:12, skipping insertion in model container [2019-11-28 21:14:12,187 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:14:12,188 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:14:12" (3/3) ... [2019-11-28 21:14:12,189 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product45.cil.c [2019-11-28 21:14:12,234 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:14:12,234 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:14:12,235 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:14:12,235 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:14:12,235 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:14:12,236 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:14:12,236 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:14:12,236 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:14:12,255 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states. [2019-11-28 21:14:12,286 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2019-11-28 21:14:12,286 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:12,286 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:12,294 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:12,295 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:12,295 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:14:12,295 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states. [2019-11-28 21:14:12,303 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2019-11-28 21:14:12,303 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:12,303 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:12,305 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:12,305 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:12,311 INFO L794 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 7#L-1true havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 76#L859true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 84#L867true main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 97#L955true assume 0 != main_~tmp~9; 32#L931true ~switchedOnBeforeTS~0 := 0; 89#L523true havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 6#L544-1true [2019-11-28 21:14:12,312 INFO L796 eck$LassoCheckResult]: Loop: 6#L544-1true assume !false; 17#L780true assume test_~splverifierCounter~0 < 4; 123#L781true test_~tmp~8 := test_#t~nondet69;havoc test_#t~nondet69; 4#L789true assume !(0 != test_~tmp~8); 127#L789-1true test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 47#L799true assume !(0 != test_~tmp___0~2); 25#L799-1true test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 92#L809true assume 0 != test_~tmp___2~0; 62#L815-2true havoc __utac_acc__Specification5_spec__2_#t~ret45;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 29#L708true __utac_acc__Specification5_spec__2_#t~ret45 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret45;havoc __utac_acc__Specification5_spec__2_#t~ret45; 5#L533true assume !(0 != ~pumpRunning~0); 117#L580true assume !(0 != ~systemActive~0); 43#L587true havoc __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_#t~ret47, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 14#L122true __utac_acc__Specification5_spec__3_#t~ret46 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret46;havoc __utac_acc__Specification5_spec__3_#t~ret46; 3#L544true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 6#L544-1true [2019-11-28 21:14:12,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:12,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:14:12,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:12,329 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180239371] [2019-11-28 21:14:12,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:12,758 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:12,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:12,760 INFO L82 PathProgramCache]: Analyzing trace with hash 96567276, now seen corresponding path program 1 times [2019-11-28 21:14:12,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:12,761 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498167241] [2019-11-28 21:14:12,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:12,798 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:12,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:12,800 INFO L82 PathProgramCache]: Analyzing trace with hash 2030592486, now seen corresponding path program 1 times [2019-11-28 21:14:12,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:12,801 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47123575] [2019-11-28 21:14:12,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:14:12,996 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 21:14:12,999 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47123575] [2019-11-28 21:14:13,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:14:13,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 21:14:13,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076429644] [2019-11-28 21:14:13,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:14:13,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 21:14:13,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 21:14:13,220 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 6 states. [2019-11-28 21:14:13,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:14:13,414 INFO L93 Difference]: Finished difference Result 135 states and 190 transitions. [2019-11-28 21:14:13,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 21:14:13,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 135 states and 190 transitions. [2019-11-28 21:14:13,422 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2019-11-28 21:14:13,430 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 135 states to 128 states and 183 transitions. [2019-11-28 21:14:13,431 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 128 [2019-11-28 21:14:13,432 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 128 [2019-11-28 21:14:13,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 183 transitions. [2019-11-28 21:14:13,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:14:13,434 INFO L688 BuchiCegarLoop]: Abstraction has 128 states and 183 transitions. [2019-11-28 21:14:13,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 183 transitions. [2019-11-28 21:14:13,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-11-28 21:14:13,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-11-28 21:14:13,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 183 transitions. [2019-11-28 21:14:13,479 INFO L711 BuchiCegarLoop]: Abstraction has 128 states and 183 transitions. [2019-11-28 21:14:13,479 INFO L591 BuchiCegarLoop]: Abstraction has 128 states and 183 transitions. [2019-11-28 21:14:13,479 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:14:13,480 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 128 states and 183 transitions. [2019-11-28 21:14:13,482 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2019-11-28 21:14:13,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:13,483 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:13,484 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:13,484 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:13,484 INFO L794 eck$LassoCheckResult]: Stem: 399#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 298#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 299#L859 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 388#L867 main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 392#L955 assume 0 != main_~tmp~9; 340#L931 ~switchedOnBeforeTS~0 := 0; 341#L523 havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 290#L544-1 [2019-11-28 21:14:13,485 INFO L796 eck$LassoCheckResult]: Loop: 290#L544-1 assume !false; 297#L780 assume test_~splverifierCounter~0 < 4; 316#L781 test_~tmp~8 := test_#t~nondet69;havoc test_#t~nondet69; 291#L789 assume !(0 != test_~tmp~8); 293#L789-1 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 361#L799 assume !(0 != test_~tmp___0~2); 330#L799-1 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 331#L809 assume 0 != test_~tmp___2~0; 376#L815-2 havoc __utac_acc__Specification5_spec__2_#t~ret45;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 337#L708 __utac_acc__Specification5_spec__2_#t~ret45 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret45;havoc __utac_acc__Specification5_spec__2_#t~ret45; 294#L533 assume !(0 != ~pumpRunning~0); 295#L580 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 406#L638 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret48, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 311#L612-1 assume !(0 == ~pumpRunning~0); 307#L587 havoc __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_#t~ret47, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 310#L122 __utac_acc__Specification5_spec__3_#t~ret46 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret46;havoc __utac_acc__Specification5_spec__3_#t~ret46; 288#L544 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 290#L544-1 [2019-11-28 21:14:13,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:13,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:14:13,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:13,486 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89371689] [2019-11-28 21:14:13,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:13,615 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:13,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:13,616 INFO L82 PathProgramCache]: Analyzing trace with hash -473447858, now seen corresponding path program 1 times [2019-11-28 21:14:13,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:13,617 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524382723] [2019-11-28 21:14:13,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:13,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:14:13,635 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 21:14:13,636 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524382723] [2019-11-28 21:14:13,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:14:13,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:14:13,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223135923] [2019-11-28 21:14:13,637 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:14:13,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:14:13,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:14:13,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:14:13,638 INFO L87 Difference]: Start difference. First operand 128 states and 183 transitions. cyclomatic complexity: 57 Second operand 3 states. [2019-11-28 21:14:13,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:14:13,762 INFO L93 Difference]: Finished difference Result 177 states and 242 transitions. [2019-11-28 21:14:13,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:14:13,763 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 177 states and 242 transitions. [2019-11-28 21:14:13,766 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2019-11-28 21:14:13,769 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 177 states to 177 states and 242 transitions. [2019-11-28 21:14:13,769 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2019-11-28 21:14:13,770 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2019-11-28 21:14:13,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 242 transitions. [2019-11-28 21:14:13,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:14:13,772 INFO L688 BuchiCegarLoop]: Abstraction has 177 states and 242 transitions. [2019-11-28 21:14:13,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 242 transitions. [2019-11-28 21:14:13,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2019-11-28 21:14:13,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2019-11-28 21:14:13,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 242 transitions. [2019-11-28 21:14:13,791 INFO L711 BuchiCegarLoop]: Abstraction has 177 states and 242 transitions. [2019-11-28 21:14:13,791 INFO L591 BuchiCegarLoop]: Abstraction has 177 states and 242 transitions. [2019-11-28 21:14:13,791 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:14:13,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 242 transitions. [2019-11-28 21:14:13,796 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2019-11-28 21:14:13,796 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:13,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:13,798 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:13,799 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, 1, 1] [2019-11-28 21:14:13,799 INFO L794 eck$LassoCheckResult]: Stem: 714#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 608#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 609#L859 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 703#L867 main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 707#L955 assume 0 != main_~tmp~9; 650#L931 ~switchedOnBeforeTS~0 := 0; 651#L523 havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 601#L544-1 [2019-11-28 21:14:13,801 INFO L796 eck$LassoCheckResult]: Loop: 601#L544-1 assume !false; 607#L780 assume test_~splverifierCounter~0 < 4; 626#L781 test_~tmp~8 := test_#t~nondet69;havoc test_#t~nondet69; 602#L789 assume !(0 != test_~tmp~8); 604#L789-1 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 672#L799 assume !(0 != test_~tmp___0~2); 640#L799-1 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 641#L809 assume 0 != test_~tmp___2~0; 691#L815-2 havoc __utac_acc__Specification5_spec__2_#t~ret45;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 647#L708 __utac_acc__Specification5_spec__2_#t~ret45 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret45;havoc __utac_acc__Specification5_spec__2_#t~ret45; 605#L533 assume !(0 != ~pumpRunning~0); 606#L580 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 721#L638 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret48, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 621#L612-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 622#L130-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 683#L135-1 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 693#L757-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 702#L757-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 688#L763-1 processEnvironment__wrappee__methaneQuery_#t~ret48 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~4 := processEnvironment__wrappee__methaneQuery_#t~ret48;havoc processEnvironment__wrappee__methaneQuery_#t~ret48; 689#L616-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4); 658#L587 havoc __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_#t~ret47, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 620#L122 __utac_acc__Specification5_spec__3_#t~ret46 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret46;havoc __utac_acc__Specification5_spec__3_#t~ret46; 599#L544 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 601#L544-1 [2019-11-28 21:14:13,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:13,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 21:14:13,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:13,802 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672648721] [2019-11-28 21:14:13,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:13,904 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:13,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:13,905 INFO L82 PathProgramCache]: Analyzing trace with hash 793590522, now seen corresponding path program 1 times [2019-11-28 21:14:13,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:13,906 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460302899] [2019-11-28 21:14:13,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:14:13,975 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 21:14:13,976 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460302899] [2019-11-28 21:14:13,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:14:13,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 21:14:13,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891316345] [2019-11-28 21:14:13,977 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:14:13,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:14:13,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:14:13,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:14:13,978 INFO L87 Difference]: Start difference. First operand 177 states and 242 transitions. cyclomatic complexity: 67 Second operand 5 states. [2019-11-28 21:14:14,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:14:14,286 INFO L93 Difference]: Finished difference Result 772 states and 1065 transitions. [2019-11-28 21:14:14,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 21:14:14,288 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 772 states and 1065 transitions. [2019-11-28 21:14:14,297 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 529 [2019-11-28 21:14:14,307 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 772 states to 772 states and 1065 transitions. [2019-11-28 21:14:14,307 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 772 [2019-11-28 21:14:14,310 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 772 [2019-11-28 21:14:14,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 772 states and 1065 transitions. [2019-11-28 21:14:14,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:14:14,315 INFO L688 BuchiCegarLoop]: Abstraction has 772 states and 1065 transitions. [2019-11-28 21:14:14,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states and 1065 transitions. [2019-11-28 21:14:14,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 344. [2019-11-28 21:14:14,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2019-11-28 21:14:14,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 465 transitions. [2019-11-28 21:14:14,341 INFO L711 BuchiCegarLoop]: Abstraction has 344 states and 465 transitions. [2019-11-28 21:14:14,341 INFO L591 BuchiCegarLoop]: Abstraction has 344 states and 465 transitions. [2019-11-28 21:14:14,341 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 21:14:14,342 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 344 states and 465 transitions. [2019-11-28 21:14:14,346 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 242 [2019-11-28 21:14:14,346 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:14:14,346 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:14:14,347 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:14:14,348 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, 1, 1, 1, 1] [2019-11-28 21:14:14,348 INFO L794 eck$LassoCheckResult]: Stem: 1705#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1576#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 1577#L859 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1692#L867 main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 1696#L955 assume 0 != main_~tmp~9; 1624#L931 ~switchedOnBeforeTS~0 := 0; 1625#L523 havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1702#L544-1 [2019-11-28 21:14:14,349 INFO L796 eck$LassoCheckResult]: Loop: 1702#L544-1 assume !false; 1876#L780 assume test_~splverifierCounter~0 < 4; 1875#L781 test_~tmp~8 := test_#t~nondet69;havoc test_#t~nondet69; 1874#L789 assume !(0 != test_~tmp~8); 1871#L789-1 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 1870#L799 assume !(0 != test_~tmp___0~2); 1868#L799-1 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 1867#L809 assume 0 != test_~tmp___2~0; 1864#L815-2 havoc __utac_acc__Specification5_spec__2_#t~ret45;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 1840#L708 __utac_acc__Specification5_spec__2_#t~ret45 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret45;havoc __utac_acc__Specification5_spec__2_#t~ret45; 1834#L533 assume !(0 != ~pumpRunning~0); 1833#L580 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1832#L638 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret48, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1817#L612-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1665#L130-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1666#L135-1 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 1679#L757-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1691#L757-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1674#L763-1 processEnvironment__wrappee__methaneQuery_#t~ret48 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~4 := processEnvironment__wrappee__methaneQuery_#t~ret48;havoc processEnvironment__wrappee__methaneQuery_#t~ret48; 1675#L616-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4); 1633#L587 havoc __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_#t~ret47, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1762#L122 __utac_acc__Specification5_spec__3_#t~ret46 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret46;havoc __utac_acc__Specification5_spec__3_#t~ret46; 1763#L544 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 1626#L708-1 __utac_acc__Specification5_spec__3_#t~ret47 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret47;havoc __utac_acc__Specification5_spec__3_#t~ret47; 1627#L548 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 1702#L544-1 [2019-11-28 21:14:14,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:14,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-28 21:14:14,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:14,350 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523863484] [2019-11-28 21:14:14,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:14,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:14,420 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:14,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:14,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1863698731, now seen corresponding path program 1 times [2019-11-28 21:14:14,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:14,422 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075086906] [2019-11-28 21:14:14,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:14,437 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:14,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:14:14,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1927124913, now seen corresponding path program 1 times [2019-11-28 21:14:14,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:14:14,438 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401317793] [2019-11-28 21:14:14,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:14:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:14,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:14:14,513 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:14:14,709 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-11-28 21:14:33,261 WARN L192 SmtUtils]: Spent 18.45 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:14:44,879 WARN L192 SmtUtils]: Spent 11.60 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:14:44,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:14:44 BoogieIcfgContainer [2019-11-28 21:14:44,965 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:14:44,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:14:44,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:14:44,966 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:14:44,967 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:14:12" (3/4) ... [2019-11-28 21:14:44,970 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:14:45,033 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:14:45,034 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:14:45,035 INFO L168 Benchmark]: Toolchain (without parser) took 34775.29 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 323.0 MB). Free memory was 953.7 MB in the beginning and 1.2 GB in the end (delta: -241.9 MB). Peak memory consumption was 81.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:45,036 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:14:45,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 656.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -153.6 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:45,038 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.41 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:45,038 INFO L168 Benchmark]: Boogie Preprocessor took 50.04 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 21:14:45,039 INFO L168 Benchmark]: RCFGBuilder took 1122.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.6 MB). Peak memory consumption was 71.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:45,040 INFO L168 Benchmark]: BuchiAutomizer took 32784.97 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 191.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -166.6 MB). Peak memory consumption was 396.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:14:45,040 INFO L168 Benchmark]: Witness Printer took 68.24 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:14:45,043 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 656.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -153.6 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 83.41 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.04 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 1122.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.6 MB). Peak memory consumption was 71.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 32784.97 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 191.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -166.6 MB). Peak memory consumption was 396.8 MB. Max. memory is 11.5 GB. * Witness Printer took 68.24 ms. Allocated memory is still 1.4 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 344 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 32.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 31.7s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 428 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 344 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 621 SDtfs, 1621 SDslu, 874 SDs, 0 SdLazy, 170 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 779]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5721} State at position 1 is {NULL=0, NULL=5745, NULL=5729, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9bbe8f2=0, NULL=5721, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44991d3b=0, NULL=0, NULL=5739, NULL=0, NULL=5725, NULL=5736, NULL=0, methaneLevelCritical=0, NULL=5748, retValue_acc=1, tmp___0=0, tmp=1, NULL=0, NULL=5732, NULL=5744, retValue_acc=0, NULL=0, tmp=0, tmp___1=0, NULL=5724, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30cca897=0, NULL=5735, NULL=5734, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=5746, NULL=5731, \result=0, NULL=5726, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f8efe=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43258f7a=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@465b8458=0, \result=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, tmp___0=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=5740, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63b3cc3f=0, NULL=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58fd8597=0, NULL=5730, NULL=5728, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a4e2ead=64, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2255bf4d=0, NULL=5727, tmp=1, tmp___2=64, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@691d5e01=0, NULL=5742, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=5737, NULL=5743, head=0, NULL=0, tmp=0, tmp=1, NULL=5733, NULL=0, NULL=0, NULL=5741, NULL=0, NULL=5738, retValue_acc=0, NULL=5747, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L319] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L517] int switchedOnBeforeTS ; [L570] int pumpRunning = 0; [L571] int systemActive = 1; [L872] int cleanupTimeShifts = 4; [L946] int retValue_acc ; [L947] int tmp ; [L863] int retValue_acc ; [L866] retValue_acc = 1 [L867] return (retValue_acc); [L953] tmp = valid_product() [L955] COND TRUE \read(tmp) [L522] switchedOnBeforeTS = 0 [L770] int splverifierCounter ; [L771] int tmp ; [L772] int tmp___0 ; [L773] int tmp___1 ; [L774] int tmp___2 ; [L777] splverifierCounter = 0 Loop: [L779] COND TRUE 1 [L781] COND TRUE splverifierCounter < 4 [L787] tmp = __VERIFIER_nondet_int() [L789] COND FALSE !(\read(tmp)) [L797] tmp___0 = __VERIFIER_nondet_int() [L799] COND FALSE !(\read(tmp___0)) [L807] tmp___2 = __VERIFIER_nondet_int() [L809] COND TRUE \read(tmp___2) [L704] int retValue_acc ; [L707] retValue_acc = pumpRunning [L708] return (retValue_acc); [L531] switchedOnBeforeTS = isPumpRunning() [L580] COND FALSE !(\read(pumpRunning)) [L587] COND TRUE \read(systemActive) [L635] int tmp ; [L638] COND FALSE !(\read(pumpRunning)) [L609] int tmp ; [L612] COND TRUE ! pumpRunning [L749] int retValue_acc ; [L750] int tmp ; [L751] int tmp___0 ; [L127] int retValue_acc ; [L130] COND TRUE waterLevel < 2 [L131] retValue_acc = 1 [L132] return (retValue_acc); [L755] tmp = isHighWaterSensorDry() [L757] COND TRUE \read(tmp) [L758] tmp___0 = 0 [L762] retValue_acc = tmp___0 [L763] return (retValue_acc); [L614] tmp = isHighWaterLevel() [L616] COND FALSE !(\read(tmp)) [L537] int tmp ; [L538] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L542] tmp = getWaterLevel() [L544] COND TRUE tmp != 2 [L704] int retValue_acc ; [L707] retValue_acc = pumpRunning [L708] return (retValue_acc); [L546] tmp___0 = isPumpRunning() [L548] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...