./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product62.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 aba800ab301c8226900a4d7cbc461b1db848e476 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:42:43,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:42:43,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:42:43,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:42:43,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:42:43,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:42:43,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:42:43,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:42:43,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:42:43,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:42:43,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:42:43,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:42:43,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:42:43,894 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:42:43,895 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:42:43,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:42:43,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:42:43,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:42:43,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:42:43,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:42:43,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:42:43,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:42:43,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:42:43,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:42:43,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:42:43,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:42:43,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:42:43,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:42:43,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:42:43,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:42:43,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:42:43,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:42:43,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:42:43,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:42:43,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:42:43,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:42:43,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:42:43,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:42:43,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:42:43,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:42:43,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:42:43,920 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:42:43,936 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:42:43,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:42:43,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:42:43,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:42:43,938 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:42:43,938 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:42:43,939 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:42:43,939 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:42:43,939 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:42:43,939 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:42:43,940 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:42:43,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:42:43,940 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:42:43,941 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:42:43,941 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:42:43,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:42:43,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:42:43,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:42:43,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:42:43,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:42:43,943 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:42:43,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:42:43,943 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:42:43,943 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:42:43,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:42:43,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:42:43,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:42:43,944 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:42:43,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:42:43,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:42:43,945 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:42:43,946 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:42:43,947 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 -> aba800ab301c8226900a4d7cbc461b1db848e476 [2019-11-28 03:42:44,232 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:42:44,244 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:42:44,248 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:42:44,250 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:42:44,250 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:42:44,251 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c [2019-11-28 03:42:44,317 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a2c47d75/9899cdaa76db4ee68024e4ad0d80ce86/FLAG75a969487 [2019-11-28 03:42:44,860 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:42:44,863 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c [2019-11-28 03:42:44,878 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a2c47d75/9899cdaa76db4ee68024e4ad0d80ce86/FLAG75a969487 [2019-11-28 03:42:45,171 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a2c47d75/9899cdaa76db4ee68024e4ad0d80ce86 [2019-11-28 03:42:45,174 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:42:45,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:42:45,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:42:45,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:42:45,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:42:45,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:42:45" (1/1) ... [2019-11-28 03:42:45,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d0e939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:45, skipping insertion in model container [2019-11-28 03:42:45,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:42:45" (1/1) ... [2019-11-28 03:42:45,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:42:45,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:42:45,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:42:45,710 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:42:45,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:42:45,830 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:42:45,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:45 WrapperNode [2019-11-28 03:42:45,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:42:45,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:42:45,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:42:45,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:42:45,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:45" (1/1) ... [2019-11-28 03:42:45,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:45" (1/1) ... [2019-11-28 03:42:45,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:42:45,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:42:45,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:42:45,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:42:45,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:45" (1/1) ... [2019-11-28 03:42:45,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:45" (1/1) ... [2019-11-28 03:42:45,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:45" (1/1) ... [2019-11-28 03:42:45,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:45" (1/1) ... [2019-11-28 03:42:45,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:45" (1/1) ... [2019-11-28 03:42:46,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:45" (1/1) ... [2019-11-28 03:42:46,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:45" (1/1) ... [2019-11-28 03:42:46,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:42:46,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:42:46,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:42:46,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:42:46,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:42:46,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:42:46,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 03:42:46,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:42:46,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:42:47,159 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:42:47,160 INFO L297 CfgBuilder]: Removed 364 assume(true) statements. [2019-11-28 03:42:47,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:42:47 BoogieIcfgContainer [2019-11-28 03:42:47,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:42:47,162 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:42:47,162 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:42:47,165 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:42:47,166 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:42:47,166 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:42:45" (1/3) ... [2019-11-28 03:42:47,168 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ef7cd9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:42:47, skipping insertion in model container [2019-11-28 03:42:47,168 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:42:47,168 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:45" (2/3) ... [2019-11-28 03:42:47,168 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ef7cd9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:42:47, skipping insertion in model container [2019-11-28 03:42:47,168 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:42:47,169 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:42:47" (3/3) ... [2019-11-28 03:42:47,170 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product62.cil.c [2019-11-28 03:42:47,214 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:42:47,215 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:42:47,215 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:42:47,215 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:42:47,215 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:42:47,216 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:42:47,216 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:42:47,216 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:42:47,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states. [2019-11-28 03:42:47,277 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2019-11-28 03:42:47,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:42:47,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:42:47,287 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:47,287 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:47,287 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:42:47,287 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states. [2019-11-28 03:42:47,297 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2019-11-28 03:42:47,298 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:42:47,298 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:42:47,299 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:47,299 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:47,305 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(13);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(110, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 3 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(80, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(117, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(109, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(112, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(32, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 15#L-1true havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~11, main_~tmp~11;havoc main_~retValue_acc~11;havoc main_~tmp~11; 137#L1025true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 59#L1033true main_#t~ret75 := valid_product_#res;main_~tmp~11 := main_#t~ret75;havoc main_#t~ret75; 70#L980true assume 0 != main_~tmp~11; 138#L953true ~switchedOnBeforeTS~0 := 0; 54#L312true havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 173#L333-1true [2019-11-28 03:42:47,306 INFO L796 eck$LassoCheckResult]: Loop: 173#L333-1true assume !false; 72#L369true assume test_~splverifierCounter~0 < 4; 133#L370true test_~tmp~7 := test_#t~nondet26;havoc test_#t~nondet26; 61#L378true assume !(0 != test_~tmp~7); 52#L378-1true test_~tmp___0~3 := test_#t~nondet27;havoc test_#t~nondet27; 161#L388true assume !(0 != test_~tmp___0~3); 165#L388-1true test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 110#L398true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 16#L406-2true havoc __utac_acc__Specification5_spec__2_#t~ret23;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 219#L217true __utac_acc__Specification5_spec__2_#t~ret23 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret23;havoc __utac_acc__Specification5_spec__2_#t~ret23; 170#L322true assume !(0 != ~pumpRunning~0); 200#L63true assume !(0 != ~systemActive~0); 36#L70true havoc __utac_acc__Specification5_spec__3_#t~ret24, __utac_acc__Specification5_spec__3_#t~ret25, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 112#L866true __utac_acc__Specification5_spec__3_#t~ret24 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret24;havoc __utac_acc__Specification5_spec__3_#t~ret24; 168#L333true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 173#L333-1true [2019-11-28 03:42:47,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:47,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 03:42:47,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:47,323 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930635243] [2019-11-28 03:42:47,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:47,699 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:42:47,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:47,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1017841037, now seen corresponding path program 1 times [2019-11-28 03:42:47,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:47,702 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741405630] [2019-11-28 03:42:47,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:42:47,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:42:47,774 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741405630] [2019-11-28 03:42:47,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:42:47,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:42:47,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834328056] [2019-11-28 03:42:47,784 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:42:47,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:42:47,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:42:47,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:42:47,804 INFO L87 Difference]: Start difference. First operand 231 states. Second operand 3 states. [2019-11-28 03:42:47,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:42:47,867 INFO L93 Difference]: Finished difference Result 231 states and 335 transitions. [2019-11-28 03:42:47,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:42:47,870 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 231 states and 335 transitions. [2019-11-28 03:42:47,875 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2019-11-28 03:42:47,882 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 231 states to 224 states and 327 transitions. [2019-11-28 03:42:47,883 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 224 [2019-11-28 03:42:47,885 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 224 [2019-11-28 03:42:47,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 224 states and 327 transitions. [2019-11-28 03:42:47,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:42:47,888 INFO L688 BuchiCegarLoop]: Abstraction has 224 states and 327 transitions. [2019-11-28 03:42:47,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states and 327 transitions. [2019-11-28 03:42:47,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2019-11-28 03:42:47,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2019-11-28 03:42:47,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 327 transitions. [2019-11-28 03:42:47,932 INFO L711 BuchiCegarLoop]: Abstraction has 224 states and 327 transitions. [2019-11-28 03:42:47,933 INFO L591 BuchiCegarLoop]: Abstraction has 224 states and 327 transitions. [2019-11-28 03:42:47,933 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:42:47,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 224 states and 327 transitions. [2019-11-28 03:42:47,936 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2019-11-28 03:42:47,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:42:47,936 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:42:47,937 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:47,937 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 03:42:47,938 INFO L794 eck$LassoCheckResult]: Stem: 602#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(13);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(110, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 3 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(80, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(117, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(109, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(112, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(32, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 494#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~11, main_~tmp~11;havoc main_~retValue_acc~11;havoc main_~tmp~11; 495#L1025 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 571#L1033 main_#t~ret75 := valid_product_#res;main_~tmp~11 := main_#t~ret75;havoc main_#t~ret75; 572#L980 assume 0 != main_~tmp~11; 590#L953 ~switchedOnBeforeTS~0 := 0; 565#L312 havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 566#L333-1 [2019-11-28 03:42:47,938 INFO L796 eck$LassoCheckResult]: Loop: 566#L333-1 assume !false; 591#L369 assume test_~splverifierCounter~0 < 4; 592#L370 test_~tmp~7 := test_#t~nondet26;havoc test_#t~nondet26; 573#L378 assume !(0 != test_~tmp~7); 562#L378-1 test_~tmp___0~3 := test_#t~nondet27;havoc test_#t~nondet27; 563#L388 assume !(0 != test_~tmp___0~3); 662#L388-1 test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 645#L398 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 496#L406-2 havoc __utac_acc__Specification5_spec__2_#t~ret23;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 497#L217 __utac_acc__Specification5_spec__2_#t~ret23 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret23;havoc __utac_acc__Specification5_spec__2_#t~ret23; 674#L322 assume !(0 != ~pumpRunning~0); 509#L63 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 546#L147 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret1, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 547#L121-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 614#L95-3 assume !(0 == ~pumpRunning~0); 533#L70 havoc __utac_acc__Specification5_spec__3_#t~ret24, __utac_acc__Specification5_spec__3_#t~ret25, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 534#L866 __utac_acc__Specification5_spec__3_#t~ret24 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret24;havoc __utac_acc__Specification5_spec__3_#t~ret24; 646#L333 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 566#L333-1 [2019-11-28 03:42:47,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:47,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 03:42:47,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:47,940 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967575832] [2019-11-28 03:42:47,940 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:48,088 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:42:48,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:48,090 INFO L82 PathProgramCache]: Analyzing trace with hash 901397577, now seen corresponding path program 1 times [2019-11-28 03:42:48,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:48,091 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573088770] [2019-11-28 03:42:48,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:42:48,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:42:48,118 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573088770] [2019-11-28 03:42:48,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:42:48,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:42:48,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122191999] [2019-11-28 03:42:48,122 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:42:48,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:42:48,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:42:48,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:42:48,123 INFO L87 Difference]: Start difference. First operand 224 states and 327 transitions. cyclomatic complexity: 105 Second operand 3 states. [2019-11-28 03:42:48,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:42:48,322 INFO L93 Difference]: Finished difference Result 228 states and 314 transitions. [2019-11-28 03:42:48,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:42:48,324 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 228 states and 314 transitions. [2019-11-28 03:42:48,327 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 156 [2019-11-28 03:42:48,335 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 228 states to 228 states and 314 transitions. [2019-11-28 03:42:48,335 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 228 [2019-11-28 03:42:48,336 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 228 [2019-11-28 03:42:48,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 228 states and 314 transitions. [2019-11-28 03:42:48,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:42:48,342 INFO L688 BuchiCegarLoop]: Abstraction has 228 states and 314 transitions. [2019-11-28 03:42:48,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states and 314 transitions. [2019-11-28 03:42:48,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2019-11-28 03:42:48,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2019-11-28 03:42:48,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2019-11-28 03:42:48,367 INFO L711 BuchiCegarLoop]: Abstraction has 228 states and 314 transitions. [2019-11-28 03:42:48,367 INFO L591 BuchiCegarLoop]: Abstraction has 228 states and 314 transitions. [2019-11-28 03:42:48,375 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:42:48,375 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states and 314 transitions. [2019-11-28 03:42:48,379 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 156 [2019-11-28 03:42:48,379 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:42:48,379 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:42:48,380 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:48,381 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] [2019-11-28 03:42:48,382 INFO L794 eck$LassoCheckResult]: Stem: 1095#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(13);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(110, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 3 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(80, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(117, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(109, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(112, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(32, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 969#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~11, main_~tmp~11;havoc main_~retValue_acc~11;havoc main_~tmp~11; 970#L1025 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1029#L1033 main_#t~ret75 := valid_product_#res;main_~tmp~11 := main_#t~ret75;havoc main_#t~ret75; 1033#L980 assume 0 != main_~tmp~11; 1035#L953 ~switchedOnBeforeTS~0 := 0; 1028#L312 havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1017#L333-1 [2019-11-28 03:42:48,382 INFO L796 eck$LassoCheckResult]: Loop: 1017#L333-1 assume !false; 1067#L369 assume test_~splverifierCounter~0 < 4; 1068#L370 test_~tmp~7 := test_#t~nondet26;havoc test_#t~nondet26; 1155#L378 assume !(0 != test_~tmp~7); 1153#L378-1 test_~tmp___0~3 := test_#t~nondet27;havoc test_#t~nondet27; 1152#L388 assume !(0 != test_~tmp___0~3); 1150#L388-1 test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 936#L398 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 938#L406-2 havoc __utac_acc__Specification5_spec__2_#t~ret23;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 971#L217 __utac_acc__Specification5_spec__2_#t~ret23 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret23;havoc __utac_acc__Specification5_spec__2_#t~ret23; 1077#L322 assume !(0 != ~pumpRunning~0); 1078#L63 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1008#L147 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret1, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1009#L121-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 954#L95-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret21, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 955#L874-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 983#L879-3 isHighWaterLevel_#t~ret21 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret21;havoc isHighWaterLevel_#t~ret21; 1030#L266-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 1115#L266-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1108#L272-3 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 1096#L99-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 950#L70 havoc __utac_acc__Specification5_spec__3_#t~ret24, __utac_acc__Specification5_spec__3_#t~ret25, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 947#L866 __utac_acc__Specification5_spec__3_#t~ret24 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret24;havoc __utac_acc__Specification5_spec__3_#t~ret24; 948#L333 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 1017#L333-1 [2019-11-28 03:42:48,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:48,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 03:42:48,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:48,384 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553881091] [2019-11-28 03:42:48,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:48,503 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:42:48,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:48,504 INFO L82 PathProgramCache]: Analyzing trace with hash -9342763, now seen corresponding path program 1 times [2019-11-28 03:42:48,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:48,505 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227020172] [2019-11-28 03:42:48,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:42:48,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:42:48,592 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227020172] [2019-11-28 03:42:48,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:42:48,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 03:42:48,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841422132] [2019-11-28 03:42:48,596 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:42:48,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:42:48,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 03:42:48,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 03:42:48,597 INFO L87 Difference]: Start difference. First operand 228 states and 314 transitions. cyclomatic complexity: 88 Second operand 5 states. [2019-11-28 03:42:48,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:42:48,981 INFO L93 Difference]: Finished difference Result 1078 states and 1497 transitions. [2019-11-28 03:42:48,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 03:42:48,982 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1078 states and 1497 transitions. [2019-11-28 03:42:48,991 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 733 [2019-11-28 03:42:48,999 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1078 states to 1078 states and 1497 transitions. [2019-11-28 03:42:48,999 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1078 [2019-11-28 03:42:49,001 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1078 [2019-11-28 03:42:49,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1078 states and 1497 transitions. [2019-11-28 03:42:49,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:42:49,005 INFO L688 BuchiCegarLoop]: Abstraction has 1078 states and 1497 transitions. [2019-11-28 03:42:49,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states and 1497 transitions. [2019-11-28 03:42:49,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 446. [2019-11-28 03:42:49,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2019-11-28 03:42:49,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 609 transitions. [2019-11-28 03:42:49,024 INFO L711 BuchiCegarLoop]: Abstraction has 446 states and 609 transitions. [2019-11-28 03:42:49,024 INFO L591 BuchiCegarLoop]: Abstraction has 446 states and 609 transitions. [2019-11-28 03:42:49,025 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 03:42:49,025 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 446 states and 609 transitions. [2019-11-28 03:42:49,028 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 310 [2019-11-28 03:42:49,028 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:42:49,028 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:42:49,029 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:49,029 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, 1] [2019-11-28 03:42:49,029 INFO L794 eck$LassoCheckResult]: Stem: 2438#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(13);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(110, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 3 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(80, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(117, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(109, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(112, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(32, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 2296#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~11, main_~tmp~11;havoc main_~retValue_acc~11;havoc main_~tmp~11; 2297#L1025 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 2365#L1033 main_#t~ret75 := valid_product_#res;main_~tmp~11 := main_#t~ret75;havoc main_#t~ret75; 2369#L980 assume 0 != main_~tmp~11; 2372#L953 ~switchedOnBeforeTS~0 := 0; 2363#L312 havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2364#L333-1 [2019-11-28 03:42:49,030 INFO L796 eck$LassoCheckResult]: Loop: 2364#L333-1 assume !false; 2639#L369 assume test_~splverifierCounter~0 < 4; 2640#L370 test_~tmp~7 := test_#t~nondet26;havoc test_#t~nondet26; 2676#L378 assume !(0 != test_~tmp~7); 2673#L378-1 test_~tmp___0~3 := test_#t~nondet27;havoc test_#t~nondet27; 2672#L388 assume !(0 != test_~tmp___0~3); 2670#L388-1 test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 2669#L398 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2667#L406-2 havoc __utac_acc__Specification5_spec__2_#t~ret23;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2666#L217 __utac_acc__Specification5_spec__2_#t~ret23 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret23;havoc __utac_acc__Specification5_spec__2_#t~ret23; 2665#L322 assume !(0 != ~pumpRunning~0); 2664#L63 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 2533#L147 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret1, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 2530#L121-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 2528#L95-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret21, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 2526#L874-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 2313#L879-3 isHighWaterLevel_#t~ret21 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret21;havoc isHighWaterLevel_#t~ret21; 2523#L266-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 2521#L266-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 2519#L272-3 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 2517#L99-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 2277#L70 havoc __utac_acc__Specification5_spec__3_#t~ret24, __utac_acc__Specification5_spec__3_#t~ret25, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 2647#L866 __utac_acc__Specification5_spec__3_#t~ret24 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret24;havoc __utac_acc__Specification5_spec__3_#t~ret24; 2646#L333 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2645#L217-1 __utac_acc__Specification5_spec__3_#t~ret25 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret25;havoc __utac_acc__Specification5_spec__3_#t~ret25; 2644#L337 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 2364#L333-1 [2019-11-28 03:42:49,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:49,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-28 03:42:49,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:49,031 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607759020] [2019-11-28 03:42:49,031 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:49,090 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:42:49,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:49,091 INFO L82 PathProgramCache]: Analyzing trace with hash -388467952, now seen corresponding path program 1 times [2019-11-28 03:42:49,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:49,092 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880120696] [2019-11-28 03:42:49,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:49,106 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:42:49,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:49,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1940287702, now seen corresponding path program 1 times [2019-11-28 03:42:49,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:49,107 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563812921] [2019-11-28 03:42:49,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:49,181 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:42:49,395 WARN L192 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-11-28 03:43:12,116 WARN L192 SmtUtils]: Spent 22.64 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 03:43:25,421 WARN L192 SmtUtils]: Spent 13.30 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 03:43:25,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:43:25 BoogieIcfgContainer [2019-11-28 03:43:25,508 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:43:25,508 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:43:25,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:43:25,509 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:43:25,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:42:47" (3/4) ... [2019-11-28 03:43:25,513 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 03:43:25,578 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 03:43:25,579 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:43:25,581 INFO L168 Benchmark]: Toolchain (without parser) took 40405.37 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 329.8 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -148.6 MB). Peak memory consumption was 181.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:25,581 INFO L168 Benchmark]: CDTParser took 0.25 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 03:43:25,582 INFO L168 Benchmark]: CACSL2BoogieTranslator took 654.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -163.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:25,582 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.19 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 03:43:25,583 INFO L168 Benchmark]: Boogie Preprocessor took 103.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:43:25,583 INFO L168 Benchmark]: RCFGBuilder took 1135.33 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: 97.1 MB). Peak memory consumption was 97.1 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:25,584 INFO L168 Benchmark]: BuchiAutomizer took 38346.22 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 184.5 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -92.2 MB). Peak memory consumption was 356.0 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:25,585 INFO L168 Benchmark]: Witness Printer took 70.54 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:25,588 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 654.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -163.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 90.19 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 103.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1135.33 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: 97.1 MB). Peak memory consumption was 97.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 38346.22 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 184.5 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -92.2 MB). Peak memory consumption was 356.0 MB. Max. memory is 11.5 GB. * Witness Printer took 70.54 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 5 locations. The remainder module has 446 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 38.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 37.3s. 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, 632 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 446 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1027 SDtfs, 1807 SDslu, 1326 SDs, 0 SdLazy, 232 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 368]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1108} State at position 1 is {NULL=0, NULL=1116, NULL=1108, NULL=0, retValue_acc=1, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@702b2849=0, NULL=0, retValue_acc=0, tmp=0, NULL=1125, tmp___1=0, NULL=0, NULL=1119, cleanupTimeShifts=4, NULL=1127, tmp=1, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@110bd6aa=0, NULL=1130, NULL=0, NULL=0, NULL=1109, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=1133, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@469f11e=0, NULL=1111, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a71fe16=65, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@168f7be7=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@111c12f2=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2668fb5=0, NULL=1121, NULL=0, tmp=1, retValue_acc=1, NULL=0, tmp___0=0, NULL=1132, tmp=0, head=0, tmp=0, NULL=1129, NULL=0, NULL=0, NULL=1122, NULL=1115, tmp=1, tmp___0=0, NULL=0, NULL=0, tmp=0, switchedOnBeforeTS=0, NULL=1118, \result=0, NULL=1112, NULL=0, systemActive=1, \result=1, NULL=0, NULL=1110, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=1117, tmp___0=0, NULL=1131, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50b39084=0, NULL=1123, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fe3ba88=0, NULL=1113, NULL=0, NULL=0, NULL=0, NULL=1124, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7139802e=0, tmp___2=65, splverifierCounter=0, NULL=0, NULL=1120, NULL=1128, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a6539ef=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fa455fd=0, retValue_acc=0, NULL=0, NULL=1126, NULL=0, NULL=1114} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L306] int switchedOnBeforeTS ; [L594] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L791] int waterLevel = 1; [L792] int methaneLevelCritical = 0; [L894] int cleanupTimeShifts = 4; [L971] int retValue_acc ; [L972] int tmp ; [L1029] int retValue_acc ; [L1032] retValue_acc = 1 [L1033] return (retValue_acc); [L978] tmp = valid_product() [L980] COND TRUE \read(tmp) [L311] switchedOnBeforeTS = 0 [L359] int splverifierCounter ; [L360] int tmp ; [L361] int tmp___0 ; [L362] int tmp___1 ; [L363] int tmp___2 ; [L366] splverifierCounter = 0 Loop: [L368] COND TRUE 1 [L370] COND TRUE splverifierCounter < 4 [L376] tmp = __VERIFIER_nondet_int() [L378] COND FALSE !(\read(tmp)) [L386] tmp___0 = __VERIFIER_nondet_int() [L388] COND FALSE !(\read(tmp___0)) [L396] tmp___2 = __VERIFIER_nondet_int() [L398] COND TRUE \read(tmp___2) [L299] systemActive = 1 [L213] int retValue_acc ; [L216] retValue_acc = pumpRunning [L217] return (retValue_acc); [L320] switchedOnBeforeTS = isPumpRunning() [L63] COND FALSE !(\read(pumpRunning)) [L70] COND TRUE \read(systemActive) [L144] int tmp ; [L147] COND FALSE !(\read(pumpRunning)) [L118] int tmp ; [L121] COND FALSE !(\read(pumpRunning)) [L92] int tmp ; [L95] COND TRUE ! pumpRunning [L258] int retValue_acc ; [L259] int tmp ; [L260] int tmp___0 ; [L871] int retValue_acc ; [L874] COND TRUE waterLevel < 2 [L875] retValue_acc = 1 [L876] return (retValue_acc); [L264] tmp = isHighWaterSensorDry() [L266] COND TRUE \read(tmp) [L267] tmp___0 = 0 [L271] retValue_acc = tmp___0 [L272] return (retValue_acc); [L97] tmp = isHighWaterLevel() [L99] COND FALSE !(\read(tmp)) [L326] int tmp ; [L327] int tmp___0 ; [L862] int retValue_acc ; [L865] retValue_acc = waterLevel [L866] return (retValue_acc); [L331] tmp = getWaterLevel() [L333] COND TRUE tmp != 2 [L213] int retValue_acc ; [L216] retValue_acc = pumpRunning [L217] return (retValue_acc); [L335] tmp___0 = isPumpRunning() [L337] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...