./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product60.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 9f9d802e48c20b812c0aeb303e5b9a04b1c7ed3d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 03:31:34,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:31:34,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:31:34,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:31:34,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:31:34,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:31:34,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:31:34,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:31:34,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:31:34,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:31:34,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:31:34,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:31:34,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:31:34,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:31:34,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:31:34,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:31:34,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:31:34,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:31:34,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:31:34,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:31:34,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:31:34,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:31:34,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:31:34,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:31:34,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:31:34,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:31:34,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:31:34,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:31:34,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:31:34,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:31:34,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:31:34,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:31:34,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:31:34,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:31:34,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:31:34,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:31:34,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:31:34,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:31:34,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:31:34,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:31:34,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:31:34,159 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:31:34,175 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:31:34,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:31:34,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:31:34,176 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:31:34,177 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:31:34,177 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:31:34,177 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:31:34,177 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:31:34,177 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:31:34,178 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:31:34,178 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:31:34,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:31:34,178 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:31:34,178 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:31:34,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:31:34,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:31:34,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:31:34,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:31:34,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:31:34,180 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:31:34,180 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:31:34,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:31:34,180 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:31:34,180 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:31:34,181 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:31:34,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:31:34,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:31:34,181 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:31:34,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:31:34,182 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:31:34,182 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:31:34,183 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:31:34,183 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 -> 9f9d802e48c20b812c0aeb303e5b9a04b1c7ed3d [2019-11-28 03:31:34,505 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:31:34,521 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:31:34,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:31:34,527 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:31:34,528 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:31:34,530 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c [2019-11-28 03:31:34,584 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/395d519a0/59e60a2009374a959c6d483ab32768b9/FLAG6216531af [2019-11-28 03:31:35,078 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:31:35,079 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c [2019-11-28 03:31:35,109 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/395d519a0/59e60a2009374a959c6d483ab32768b9/FLAG6216531af [2019-11-28 03:31:35,331 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/395d519a0/59e60a2009374a959c6d483ab32768b9 [2019-11-28 03:31:35,335 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:31:35,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:31:35,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:31:35,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:31:35,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:31:35,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:31:35" (1/1) ... [2019-11-28 03:31:35,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c90127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:35, skipping insertion in model container [2019-11-28 03:31:35,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:31:35" (1/1) ... [2019-11-28 03:31:35,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:31:35,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:31:35,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:31:35,902 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:31:36,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:31:36,044 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:31:36,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:36 WrapperNode [2019-11-28 03:31:36,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:31:36,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:31:36,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:31:36,045 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:31:36,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:36" (1/1) ... [2019-11-28 03:31:36,079 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:36" (1/1) ... [2019-11-28 03:31:36,124 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:31:36,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:31:36,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:31:36,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:31:36,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:36" (1/1) ... [2019-11-28 03:31:36,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:36" (1/1) ... [2019-11-28 03:31:36,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:36" (1/1) ... [2019-11-28 03:31:36,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:36" (1/1) ... [2019-11-28 03:31:36,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:36" (1/1) ... [2019-11-28 03:31:36,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:36" (1/1) ... [2019-11-28 03:31:36,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:36" (1/1) ... [2019-11-28 03:31:36,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:31:36,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:31:36,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:31:36,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:31:36,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:36" (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 03:31:36,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:31:36,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 03:31:36,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:31:36,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:31:37,126 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:31:37,126 INFO L297 CfgBuilder]: Removed 200 assume(true) statements. [2019-11-28 03:31:37,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:31:37 BoogieIcfgContainer [2019-11-28 03:31:37,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:31:37,128 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:31:37,129 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:31:37,132 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:31:37,133 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:31:37,133 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:31:35" (1/3) ... [2019-11-28 03:31:37,134 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d94eb75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:31:37, skipping insertion in model container [2019-11-28 03:31:37,134 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:31:37,135 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:36" (2/3) ... [2019-11-28 03:31:37,135 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d94eb75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:31:37, skipping insertion in model container [2019-11-28 03:31:37,135 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:31:37,135 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:31:37" (3/3) ... [2019-11-28 03:31:37,137 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product60.cil.c [2019-11-28 03:31:37,185 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:31:37,185 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:31:37,185 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:31:37,185 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:31:37,186 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:31:37,186 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:31:37,186 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:31:37,186 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:31:37,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states. [2019-11-28 03:31:37,237 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2019-11-28 03:31:37,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:31:37,238 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:31:37,247 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:37,247 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:37,247 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:31:37,247 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states. [2019-11-28 03:31:37,255 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2019-11-28 03:31:37,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:31:37,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:31:37,256 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:37,256 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:37,262 INFO L794 eck$LassoCheckResult]: Stem: 117#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~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.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(21);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 5#L-1true havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 112#L286true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 130#L294true main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 129#L250true assume 0 != main_~tmp~0; 41#L221true ~methAndRunningLastTime~0 := 0; 18#L984true havoc test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 21#L995-1true [2019-11-28 03:31:37,263 INFO L796 eck$LassoCheckResult]: Loop: 21#L995-1true assume !false; 39#L312true assume test_~splverifierCounter~0 < 4; 137#L313true test_~tmp~1 := test_#t~nondet12;havoc test_#t~nondet12; 3#L321true assume !(0 != test_~tmp~1); 4#L321-1true test_~tmp___0~0 := test_#t~nondet13;havoc test_#t~nondet13; 55#L331true assume !(0 != test_~tmp___0~0); 59#L331-1true test_~tmp___2~0 := test_#t~nondet14;havoc test_#t~nondet14; 131#L341true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 134#L349-1true assume !(0 != ~pumpRunning~0); 42#L747true assume !(0 != ~systemActive~0); 120#L754true havoc __utac_acc__Specification2_spec__2_#t~ret73, __utac_acc__Specification2_spec__2_#t~ret74, __utac_acc__Specification2_spec__2_~tmp~10, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~10;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 96#L91-2true __utac_acc__Specification2_spec__2_#t~ret73 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~10 := __utac_acc__Specification2_spec__2_#t~ret73;havoc __utac_acc__Specification2_spec__2_#t~ret73; 16#L995true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~10);~methAndRunningLastTime~0 := 0; 21#L995-1true [2019-11-28 03:31:37,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:37,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 03:31:37,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:37,283 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082129529] [2019-11-28 03:31:37,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:37,631 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:37,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:37,632 INFO L82 PathProgramCache]: Analyzing trace with hash 14728148, now seen corresponding path program 1 times [2019-11-28 03:31:37,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:37,633 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392881320] [2019-11-28 03:31:37,633 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:31:37,693 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 03:31:37,694 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392881320] [2019-11-28 03:31:37,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:31:37,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:31:37,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509226892] [2019-11-28 03:31:37,705 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:31:37,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:31:37,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:31:37,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:31:37,724 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 3 states. [2019-11-28 03:31:37,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:31:37,824 INFO L93 Difference]: Finished difference Result 269 states and 391 transitions. [2019-11-28 03:31:37,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:31:37,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 269 states and 391 transitions. [2019-11-28 03:31:37,834 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 174 [2019-11-28 03:31:37,847 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 269 states to 255 states and 376 transitions. [2019-11-28 03:31:37,849 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 255 [2019-11-28 03:31:37,850 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 255 [2019-11-28 03:31:37,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 255 states and 376 transitions. [2019-11-28 03:31:37,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:31:37,853 INFO L688 BuchiCegarLoop]: Abstraction has 255 states and 376 transitions. [2019-11-28 03:31:37,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states and 376 transitions. [2019-11-28 03:31:37,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 253. [2019-11-28 03:31:37,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2019-11-28 03:31:37,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 373 transitions. [2019-11-28 03:31:37,898 INFO L711 BuchiCegarLoop]: Abstraction has 253 states and 373 transitions. [2019-11-28 03:31:37,898 INFO L591 BuchiCegarLoop]: Abstraction has 253 states and 373 transitions. [2019-11-28 03:31:37,898 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:31:37,899 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 253 states and 373 transitions. [2019-11-28 03:31:37,902 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 172 [2019-11-28 03:31:37,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:31:37,903 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:31:37,904 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:37,904 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:37,904 INFO L794 eck$LassoCheckResult]: Stem: 553#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~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.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(21);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 420#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 421#L286 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 552#L294 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 557#L250 assume 0 != main_~tmp~0; 484#L221 ~methAndRunningLastTime~0 := 0; 449#L984 havoc test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 450#L995-1 [2019-11-28 03:31:37,905 INFO L796 eck$LassoCheckResult]: Loop: 450#L995-1 assume !false; 580#L312 assume test_~splverifierCounter~0 < 4; 579#L313 test_~tmp~1 := test_#t~nondet12;havoc test_#t~nondet12; 578#L321 assume !(0 != test_~tmp~1); 576#L321-1 test_~tmp___0~0 := test_#t~nondet13;havoc test_#t~nondet13; 575#L331 assume !(0 != test_~tmp___0~0); 573#L331-1 test_~tmp___2~0 := test_#t~nondet14;havoc test_#t~nondet14; 572#L341 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 559#L349-1 assume !(0 != ~pumpRunning~0); 429#L747 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 485#L805 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret51, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 593#L779-1 assume !(0 == ~pumpRunning~0); 586#L754 havoc __utac_acc__Specification2_spec__2_#t~ret73, __utac_acc__Specification2_spec__2_#t~ret74, __utac_acc__Specification2_spec__2_~tmp~10, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~10;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 585#L91-2 __utac_acc__Specification2_spec__2_#t~ret73 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~10 := __utac_acc__Specification2_spec__2_#t~ret73;havoc __utac_acc__Specification2_spec__2_#t~ret73; 583#L995 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~10);~methAndRunningLastTime~0 := 0; 450#L995-1 [2019-11-28 03:31:37,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:37,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 03:31:37,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:37,906 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160783805] [2019-11-28 03:31:37,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:37,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:38,085 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:38,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:38,086 INFO L82 PathProgramCache]: Analyzing trace with hash -2011842179, now seen corresponding path program 1 times [2019-11-28 03:31:38,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:38,086 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186435033] [2019-11-28 03:31:38,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:31:38,119 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 03:31:38,120 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186435033] [2019-11-28 03:31:38,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:31:38,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:31:38,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843123340] [2019-11-28 03:31:38,121 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:31:38,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:31:38,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:31:38,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:31:38,122 INFO L87 Difference]: Start difference. First operand 253 states and 373 transitions. cyclomatic complexity: 123 Second operand 3 states. [2019-11-28 03:31:38,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:31:38,272 INFO L93 Difference]: Finished difference Result 342 states and 485 transitions. [2019-11-28 03:31:38,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:31:38,273 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 342 states and 485 transitions. [2019-11-28 03:31:38,278 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2019-11-28 03:31:38,282 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 342 states to 342 states and 485 transitions. [2019-11-28 03:31:38,283 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 342 [2019-11-28 03:31:38,284 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 342 [2019-11-28 03:31:38,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 342 states and 485 transitions. [2019-11-28 03:31:38,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:31:38,287 INFO L688 BuchiCegarLoop]: Abstraction has 342 states and 485 transitions. [2019-11-28 03:31:38,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states and 485 transitions. [2019-11-28 03:31:38,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2019-11-28 03:31:38,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2019-11-28 03:31:38,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 485 transitions. [2019-11-28 03:31:38,304 INFO L711 BuchiCegarLoop]: Abstraction has 342 states and 485 transitions. [2019-11-28 03:31:38,304 INFO L591 BuchiCegarLoop]: Abstraction has 342 states and 485 transitions. [2019-11-28 03:31:38,305 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:31:38,305 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 342 states and 485 transitions. [2019-11-28 03:31:38,309 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2019-11-28 03:31:38,309 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:31:38,309 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:31:38,310 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:38,310 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:38,311 INFO L794 eck$LassoCheckResult]: Stem: 1156#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~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.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(21);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 1021#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 1022#L286 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 1154#L294 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 1161#L250 assume 0 != main_~tmp~0; 1084#L221 ~methAndRunningLastTime~0 := 0; 1048#L984 havoc test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1049#L995-1 [2019-11-28 03:31:38,312 INFO L796 eck$LassoCheckResult]: Loop: 1049#L995-1 assume !false; 1185#L312 assume test_~splverifierCounter~0 < 4; 1183#L313 test_~tmp~1 := test_#t~nondet12;havoc test_#t~nondet12; 1184#L321 assume !(0 != test_~tmp~1); 1266#L321-1 test_~tmp___0~0 := test_#t~nondet13;havoc test_#t~nondet13; 1178#L331 assume !(0 != test_~tmp___0~0); 1175#L331-1 test_~tmp___2~0 := test_#t~nondet14;havoc test_#t~nondet14; 1176#L341 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1166#L349-1 assume !(0 != ~pumpRunning~0); 1085#L747 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1076#L805 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret51, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1077#L779-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret71, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1033#L131-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1034#L136-1 isHighWaterLevel_#t~ret71 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret71;havoc isHighWaterLevel_#t~ret71; 1057#L925-3 assume !(0 != isHighWaterLevel_~tmp~8);isHighWaterLevel_~tmp___0~1 := 1; 1140#L925-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1242#L931-1 processEnvironment__wrappee__highWaterSensor_#t~ret51 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret51;havoc processEnvironment__wrappee__highWaterSensor_#t~ret51; 1235#L783-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 1232#L754 havoc __utac_acc__Specification2_spec__2_#t~ret73, __utac_acc__Specification2_spec__2_#t~ret74, __utac_acc__Specification2_spec__2_~tmp~10, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~10;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1230#L91-2 __utac_acc__Specification2_spec__2_#t~ret73 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~10 := __utac_acc__Specification2_spec__2_#t~ret73;havoc __utac_acc__Specification2_spec__2_#t~ret73; 1193#L995 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~10);~methAndRunningLastTime~0 := 0; 1049#L995-1 [2019-11-28 03:31:38,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:38,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 03:31:38,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:38,314 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040355940] [2019-11-28 03:31:38,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:38,446 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:38,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:38,447 INFO L82 PathProgramCache]: Analyzing trace with hash 235083, now seen corresponding path program 1 times [2019-11-28 03:31:38,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:38,448 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612680099] [2019-11-28 03:31:38,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:31:38,487 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 03:31:38,488 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612680099] [2019-11-28 03:31:38,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:31:38,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 03:31:38,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165318055] [2019-11-28 03:31:38,489 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:31:38,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:31:38,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 03:31:38,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 03:31:38,490 INFO L87 Difference]: Start difference. First operand 342 states and 485 transitions. cyclomatic complexity: 146 Second operand 4 states. [2019-11-28 03:31:38,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:31:38,625 INFO L93 Difference]: Finished difference Result 665 states and 927 transitions. [2019-11-28 03:31:38,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 03:31:38,626 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 665 states and 927 transitions. [2019-11-28 03:31:38,633 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 470 [2019-11-28 03:31:38,639 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 665 states to 665 states and 927 transitions. [2019-11-28 03:31:38,640 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 665 [2019-11-28 03:31:38,642 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 665 [2019-11-28 03:31:38,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 665 states and 927 transitions. [2019-11-28 03:31:38,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:31:38,646 INFO L688 BuchiCegarLoop]: Abstraction has 665 states and 927 transitions. [2019-11-28 03:31:38,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states and 927 transitions. [2019-11-28 03:31:38,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 366. [2019-11-28 03:31:38,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2019-11-28 03:31:38,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 509 transitions. [2019-11-28 03:31:38,667 INFO L711 BuchiCegarLoop]: Abstraction has 366 states and 509 transitions. [2019-11-28 03:31:38,667 INFO L591 BuchiCegarLoop]: Abstraction has 366 states and 509 transitions. [2019-11-28 03:31:38,667 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 03:31:38,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 366 states and 509 transitions. [2019-11-28 03:31:38,671 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2019-11-28 03:31:38,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:31:38,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:31:38,672 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:38,672 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:31:38,673 INFO L794 eck$LassoCheckResult]: Stem: 2199#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~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.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(21);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 2038#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 2039#L286 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 2196#L294 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 2201#L250 assume 0 != main_~tmp~0; 2107#L221 ~methAndRunningLastTime~0 := 0; 2071#L984 havoc test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2072#L995-1 [2019-11-28 03:31:38,673 INFO L796 eck$LassoCheckResult]: Loop: 2072#L995-1 assume !false; 2291#L312 assume test_~splverifierCounter~0 < 4; 2290#L313 test_~tmp~1 := test_#t~nondet12;havoc test_#t~nondet12; 2289#L321 assume !(0 != test_~tmp~1); 2287#L321-1 test_~tmp___0~0 := test_#t~nondet13;havoc test_#t~nondet13; 2124#L331 assume !(0 != test_~tmp___0~0); 2116#L331-1 test_~tmp___2~0 := test_#t~nondet14;havoc test_#t~nondet14; 2277#L341 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2203#L349-1 assume !(0 != ~pumpRunning~0); 2108#L747 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 2109#L805 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret51, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 2311#L779-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret71, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 2053#L131-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 2054#L136-1 isHighWaterLevel_#t~ret71 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret71;havoc isHighWaterLevel_#t~ret71; 2179#L925-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 2144#L925-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 2121#L931-1 processEnvironment__wrappee__highWaterSensor_#t~ret51 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret51;havoc processEnvironment__wrappee__highWaterSensor_#t~ret51; 2063#L783-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 2064#L754 havoc __utac_acc__Specification2_spec__2_#t~ret73, __utac_acc__Specification2_spec__2_#t~ret74, __utac_acc__Specification2_spec__2_~tmp~10, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~10;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 2177#L91-2 __utac_acc__Specification2_spec__2_#t~ret73 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~10 := __utac_acc__Specification2_spec__2_#t~ret73;havoc __utac_acc__Specification2_spec__2_#t~ret73; 2178#L995 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~10);~methAndRunningLastTime~0 := 0; 2072#L995-1 [2019-11-28 03:31:38,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:38,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-28 03:31:38,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:38,675 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296412598] [2019-11-28 03:31:38,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:38,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:38,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:38,763 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:38,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:38,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1774772279, now seen corresponding path program 1 times [2019-11-28 03:31:38,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:38,765 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749462232] [2019-11-28 03:31:38,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:38,782 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:38,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:31:38,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1630653, now seen corresponding path program 1 times [2019-11-28 03:31:38,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:31:38,784 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003586038] [2019-11-28 03:31:38,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:31:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:31:38,883 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:31:39,029 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-11-28 03:32:03,671 WARN L192 SmtUtils]: Spent 24.57 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 03:32:15,954 WARN L192 SmtUtils]: Spent 12.27 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 03:32:16,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:32:16 BoogieIcfgContainer [2019-11-28 03:32:16,024 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:32:16,024 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:32:16,024 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:32:16,025 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:32:16,025 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:31:37" (3/4) ... [2019-11-28 03:32:16,028 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 03:32:16,087 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 03:32:16,087 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:32:16,089 INFO L168 Benchmark]: Toolchain (without parser) took 40751.85 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 325.1 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -157.7 MB). Peak memory consumption was 167.4 MB. Max. memory is 11.5 GB. [2019-11-28 03:32:16,089 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:32:16,090 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -188.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:32:16,091 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.88 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 03:32:16,091 INFO L168 Benchmark]: Boogie Preprocessor took 50.43 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 03:32:16,092 INFO L168 Benchmark]: RCFGBuilder took 952.65 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: 77.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 11.5 GB. [2019-11-28 03:32:16,093 INFO L168 Benchmark]: BuchiAutomizer took 38895.62 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 163.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -68.3 MB). Peak memory consumption was 362.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:32:16,093 INFO L168 Benchmark]: Witness Printer took 62.89 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: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. [2019-11-28 03:32:16,097 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 701.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -188.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.88 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 50.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 952.65 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: 77.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 38895.62 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 163.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -68.3 MB). Peak memory consumption was 362.7 MB. Max. memory is 11.5 GB. * Witness Printer took 62.89 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: 8.9 MB). Peak memory consumption was 8.9 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 4 locations. The remainder module has 366 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 38.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 38.1s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 301 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 366 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 602 SDtfs, 646 SDslu, 592 SDs, 0 SdLazy, 99 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 311]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=381} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=385, NULL=0, NULL=381, NULL=394, tmp=0, retValue_acc=0, NULL=0, NULL=0, NULL=388, NULL=0, NULL=402, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@309d810=0, NULL=403, NULL=405, methaneLevelCritical=0, NULL=399, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3523361f=0, tmp___0=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3acb9644=0, NULL=391, tmp___1=0, NULL=400, NULL=395, cleanupTimeShifts=4, NULL=387, tmp=0, NULL=401, tmp=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=406, \result=0, NULL=398, NULL=386, tmp___0=0, NULL=404, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=0, NULL=383, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65d5972c=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d32f69f=0, NULL=0, NULL=397, \result=1, NULL=396, retValue_acc=1, retValue_acc=0, NULL=384, tmp___0=0, tmp=1, tmp___2=63, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=393, NULL=390, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56d12b84=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@490816b1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ccfa0=63, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f7b22f2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f7b3bc5=0, head=0, tmp=0, NULL=0, NULL=0, NULL=382, NULL=392, NULL=389, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L160] int cleanupTimeShifts = 4; [L539] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L739] int pumpRunning = 0; [L740] int systemActive = 1; [L978] int methAndRunningLastTime ; [L241] int retValue_acc ; [L242] int tmp ; [L290] int retValue_acc ; [L293] retValue_acc = 1 [L294] return (retValue_acc); [L248] tmp = valid_product() [L250] COND TRUE \read(tmp) [L983] methAndRunningLastTime = 0 [L302] int splverifierCounter ; [L303] int tmp ; [L304] int tmp___0 ; [L305] int tmp___1 ; [L306] int tmp___2 ; [L309] splverifierCounter = 0 Loop: [L311] COND TRUE 1 [L313] COND TRUE splverifierCounter < 4 [L319] tmp = __VERIFIER_nondet_int() [L321] COND FALSE !(\read(tmp)) [L329] tmp___0 = __VERIFIER_nondet_int() [L331] COND FALSE !(\read(tmp___0)) [L339] tmp___2 = __VERIFIER_nondet_int() [L341] COND TRUE \read(tmp___2) [L973] systemActive = 1 [L747] COND FALSE !(\read(pumpRunning)) [L754] COND TRUE \read(systemActive) [L802] int tmp ; [L805] COND FALSE !(\read(pumpRunning)) [L776] int tmp ; [L779] COND TRUE ! pumpRunning [L917] int retValue_acc ; [L918] int tmp ; [L919] int tmp___0 ; [L128] int retValue_acc ; [L131] COND TRUE waterLevel < 2 [L132] retValue_acc = 1 [L133] return (retValue_acc); [L923] tmp = isHighWaterSensorDry() [L925] COND TRUE \read(tmp) [L926] tmp___0 = 0 [L930] retValue_acc = tmp___0 [L931] return (retValue_acc); [L781] tmp = isHighWaterLevel() [L783] COND FALSE !(\read(tmp)) [L988] int tmp ; [L989] int tmp___0 ; [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L993] tmp = isMethaneLevelCritical() [L995] COND FALSE !(\read(tmp)) [L1011] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...