./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8271090c98217a098933d4a7a6aa5b00a536c5c8 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 21:06:49,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:06:49,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:06:49,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:06:49,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:06:49,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:06:49,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:06:49,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:06:49,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:06:49,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:06:49,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:06:49,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:06:49,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:06:49,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:06:49,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:06:49,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:06:49,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:06:49,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:06:49,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:06:49,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:06:49,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:06:49,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:06:49,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:06:49,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:06:49,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:06:49,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:06:49,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:06:49,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:06:49,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:06:49,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:06:49,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:06:49,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:06:49,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:06:49,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:06:49,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:06:49,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:06:49,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:06:49,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:06:49,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:06:49,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:06:49,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:06:49,171 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:06:49,207 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:06:49,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:06:49,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:06:49,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:06:49,212 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:06:49,212 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:06:49,212 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:06:49,213 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:06:49,214 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:06:49,214 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:06:49,214 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:06:49,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:06:49,215 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:06:49,216 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:06:49,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:06:49,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:06:49,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:06:49,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:06:49,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:06:49,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:06:49,218 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:06:49,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:06:49,218 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:06:49,218 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:06:49,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:06:49,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:06:49,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:06:49,220 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:06:49,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:06:49,220 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:06:49,220 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:06:49,221 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:06:49,222 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:06:49,223 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 -> 8271090c98217a098933d4a7a6aa5b00a536c5c8 [2019-11-28 21:06:49,525 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:06:49,544 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:06:49,548 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:06:49,549 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:06:49,549 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:06:49,550 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2019-11-28 21:06:49,620 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b566eccd/d4fd14a168fd45b1898ebc245fdc9a5d/FLAG811e4bf7b [2019-11-28 21:06:50,114 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:06:50,115 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2019-11-28 21:06:50,129 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b566eccd/d4fd14a168fd45b1898ebc245fdc9a5d/FLAG811e4bf7b [2019-11-28 21:06:50,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b566eccd/d4fd14a168fd45b1898ebc245fdc9a5d [2019-11-28 21:06:50,478 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:06:50,480 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:06:50,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:06:50,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:06:50,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:06:50,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:06:50" (1/1) ... [2019-11-28 21:06:50,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ce65fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:06:50, skipping insertion in model container [2019-11-28 21:06:50,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:06:50" (1/1) ... [2019-11-28 21:06:50,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:06:50,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:06:50,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:06:50,964 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:06:51,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:06:51,083 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:06:51,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:06:51 WrapperNode [2019-11-28 21:06:51,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:06:51,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:06:51,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:06:51,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:06:51,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:06:51" (1/1) ... [2019-11-28 21:06:51,112 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:06:51" (1/1) ... [2019-11-28 21:06:51,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:06:51,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:06:51,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:06:51,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:06:51,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:06:51" (1/1) ... [2019-11-28 21:06:51,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:06:51" (1/1) ... [2019-11-28 21:06:51,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:06:51" (1/1) ... [2019-11-28 21:06:51,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:06:51" (1/1) ... [2019-11-28 21:06:51,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:06:51" (1/1) ... [2019-11-28 21:06:51,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:06:51" (1/1) ... [2019-11-28 21:06:51,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:06:51" (1/1) ... [2019-11-28 21:06:51,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:06:51,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:06:51,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:06:51,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:06:51,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:06:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:06:51,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:06:51,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:06:51,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:06:51,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:06:52,165 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:06:52,166 INFO L287 CfgBuilder]: Removed 198 assume(true) statements. [2019-11-28 21:06:52,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:06:52 BoogieIcfgContainer [2019-11-28 21:06:52,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:06:52,168 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:06:52,168 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:06:52,171 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:06:52,172 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:06:52,173 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:06:50" (1/3) ... [2019-11-28 21:06:52,174 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57a37ba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:06:52, skipping insertion in model container [2019-11-28 21:06:52,174 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:06:52,174 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:06:51" (2/3) ... [2019-11-28 21:06:52,174 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57a37ba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:06:52, skipping insertion in model container [2019-11-28 21:06:52,175 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:06:52,175 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:06:52" (3/3) ... [2019-11-28 21:06:52,177 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product45.cil.c [2019-11-28 21:06:52,223 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:06:52,223 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:06:52,224 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:06:52,224 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:06:52,224 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:06:52,224 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:06:52,224 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:06:52,225 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:06:52,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 132 states. [2019-11-28 21:06:52,275 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2019-11-28 21:06:52,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:06:52,276 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:06:52,285 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:06:52,286 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:06:52,286 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:06:52,286 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 132 states. [2019-11-28 21:06:52,294 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2019-11-28 21:06:52,294 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:06:52,294 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:06:52,295 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:06:52,296 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:06:52,302 INFO L794 eck$LassoCheckResult]: Stem: 88#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(13);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 5#L-1true havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 7#L563true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 18#L571true main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 27#L265true assume 0 != main_~tmp~1; 20#L238true havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 10#L59-1true [2019-11-28 21:06:52,302 INFO L796 eck$LassoCheckResult]: Loop: 10#L59-1true assume !false; 91#L487true assume test_~splverifierCounter~0 < 4; 30#L488true test_~tmp~6 := test_#t~nondet35;havoc test_#t~nondet35; 57#L496true assume !(0 != test_~tmp~6); 58#L496-1true test_~tmp___0~2 := test_#t~nondet36;havoc test_#t~nondet36; 115#L506true assume !(0 != test_~tmp___0~2); 98#L506-1true test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 9#L516true assume 0 != test_~tmp___2~0; 133#L522-2true assume !(0 != ~pumpRunning~0); 8#L288true assume !(0 != ~systemActive~0); 43#L295true havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;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; 99#L126-3true __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 50#L53true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 10#L59-1true [2019-11-28 21:06:52,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:06:52,310 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 21:06:52,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:06:52,321 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029006764] [2019-11-28 21:06:52,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:06:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:06:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:06:52,749 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:06:52,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:06:52,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1679313419, now seen corresponding path program 1 times [2019-11-28 21:06:52,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:06:52,751 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250957234] [2019-11-28 21:06:52,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:06:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:06:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:06:52,767 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:06:52,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:06:52,772 INFO L82 PathProgramCache]: Analyzing trace with hash 34965519, now seen corresponding path program 1 times [2019-11-28 21:06:52,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:06:52,772 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686290371] [2019-11-28 21:06:52,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:06:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:06:52,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:06:52,915 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686290371] [2019-11-28 21:06:52,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:06:52,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 21:06:52,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461332371] [2019-11-28 21:06:52,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:06:53,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:06:53,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:06:53,018 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 3 states. [2019-11-28 21:06:53,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:06:53,055 INFO L93 Difference]: Finished difference Result 132 states and 188 transitions. [2019-11-28 21:06:53,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:06:53,058 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 188 transitions. [2019-11-28 21:06:53,064 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2019-11-28 21:06:53,074 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 125 states and 180 transitions. [2019-11-28 21:06:53,077 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2019-11-28 21:06:53,080 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2019-11-28 21:06:53,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 180 transitions. [2019-11-28 21:06:53,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:06:53,082 INFO L688 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2019-11-28 21:06:53,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 180 transitions. [2019-11-28 21:06:53,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-11-28 21:06:53,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-11-28 21:06:53,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 180 transitions. [2019-11-28 21:06:53,113 INFO L711 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2019-11-28 21:06:53,114 INFO L591 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2019-11-28 21:06:53,114 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:06:53,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 180 transitions. [2019-11-28 21:06:53,116 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2019-11-28 21:06:53,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:06:53,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:06:53,117 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:06:53,117 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:06:53,118 INFO L794 eck$LassoCheckResult]: Stem: 376#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(13);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 277#L-1 havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 278#L563 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 282#L571 main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 300#L265 assume 0 != main_~tmp~1; 302#L238 havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 286#L59-1 [2019-11-28 21:06:53,118 INFO L796 eck$LassoCheckResult]: Loop: 286#L59-1 assume !false; 287#L487 assume test_~splverifierCounter~0 < 4; 314#L488 test_~tmp~6 := test_#t~nondet35;havoc test_#t~nondet35; 315#L496 assume !(0 != test_~tmp~6); 350#L496-1 test_~tmp___0~2 := test_#t~nondet36;havoc test_#t~nondet36; 351#L506 assume !(0 != test_~tmp___0~2); 354#L506-1 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 285#L516 assume 0 != test_~tmp___2~0; 276#L522-2 assume !(0 != ~pumpRunning~0); 283#L288 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 284#L346 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret14, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 337#L320-1 assume !(0 == ~pumpRunning~0); 332#L295 havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;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; 333#L126-3 __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 342#L53 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 286#L59-1 [2019-11-28 21:06:53,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:06:53,119 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 21:06:53,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:06:53,119 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847942448] [2019-11-28 21:06:53,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:06:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:06:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:06:53,271 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:06:53,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:06:53,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1992761193, now seen corresponding path program 1 times [2019-11-28 21:06:53,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:06:53,272 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141313396] [2019-11-28 21:06:53,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:06:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:06:53,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:06:53,303 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141313396] [2019-11-28 21:06:53,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:06:53,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:06:53,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385595641] [2019-11-28 21:06:53,308 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:06:53,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:06:53,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:06:53,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:06:53,309 INFO L87 Difference]: Start difference. First operand 125 states and 180 transitions. cyclomatic complexity: 57 Second operand 3 states. [2019-11-28 21:06:53,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:06:53,450 INFO L93 Difference]: Finished difference Result 172 states and 237 transitions. [2019-11-28 21:06:53,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:06:53,451 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 172 states and 237 transitions. [2019-11-28 21:06:53,455 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2019-11-28 21:06:53,461 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 172 states to 172 states and 237 transitions. [2019-11-28 21:06:53,461 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 172 [2019-11-28 21:06:53,462 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 172 [2019-11-28 21:06:53,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 172 states and 237 transitions. [2019-11-28 21:06:53,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:06:53,465 INFO L688 BuchiCegarLoop]: Abstraction has 172 states and 237 transitions. [2019-11-28 21:06:53,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states and 237 transitions. [2019-11-28 21:06:53,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2019-11-28 21:06:53,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-11-28 21:06:53,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 237 transitions. [2019-11-28 21:06:53,490 INFO L711 BuchiCegarLoop]: Abstraction has 172 states and 237 transitions. [2019-11-28 21:06:53,491 INFO L591 BuchiCegarLoop]: Abstraction has 172 states and 237 transitions. [2019-11-28 21:06:53,491 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:06:53,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 172 states and 237 transitions. [2019-11-28 21:06:53,493 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2019-11-28 21:06:53,493 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:06:53,494 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:06:53,496 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:06:53,496 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 21:06:53,496 INFO L794 eck$LassoCheckResult]: Stem: 687#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(13);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 580#L-1 havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 581#L563 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 586#L571 main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 602#L265 assume 0 != main_~tmp~1; 604#L238 havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 588#L59-1 [2019-11-28 21:06:53,496 INFO L796 eck$LassoCheckResult]: Loop: 588#L59-1 assume !false; 589#L487 assume test_~splverifierCounter~0 < 4; 616#L488 test_~tmp~6 := test_#t~nondet35;havoc test_#t~nondet35; 617#L496 assume !(0 != test_~tmp~6); 658#L496-1 test_~tmp___0~2 := test_#t~nondet36;havoc test_#t~nondet36; 659#L506 assume !(0 != test_~tmp___0~2); 662#L506-1 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 587#L516 assume 0 != test_~tmp___2~0; 579#L522-2 assume !(0 != ~pumpRunning~0); 584#L288 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 585#L346 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret14, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 645#L320-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 606#L166-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 607#L171-1 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 675#L465-3 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 680#L465-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 666#L471-1 processEnvironment__wrappee__methaneQuery_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~2 := processEnvironment__wrappee__methaneQuery_#t~ret14;havoc processEnvironment__wrappee__methaneQuery_#t~ret14; 667#L324-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~2); 639#L295 havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;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; 640#L126-3 __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 650#L53 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 588#L59-1 [2019-11-28 21:06:53,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:06:53,497 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 21:06:53,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:06:53,498 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422150045] [2019-11-28 21:06:53,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:06:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:06:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:06:53,652 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:06:53,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:06:53,652 INFO L82 PathProgramCache]: Analyzing trace with hash 790147587, now seen corresponding path program 1 times [2019-11-28 21:06:53,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:06:53,655 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825129093] [2019-11-28 21:06:53,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:06:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:06:53,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:06:53,676 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:06:53,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:06:53,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1246218781, now seen corresponding path program 1 times [2019-11-28 21:06:53,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:06:53,677 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884899407] [2019-11-28 21:06:53,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:06:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:06:53,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:06:53,801 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884899407] [2019-11-28 21:06:53,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:06:53,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:06:53,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226494091] [2019-11-28 21:06:53,945 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-11-28 21:06:54,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:06:54,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:06:54,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:06:54,020 INFO L87 Difference]: Start difference. First operand 172 states and 237 transitions. cyclomatic complexity: 67 Second operand 5 states. [2019-11-28 21:06:54,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:06:54,298 INFO L93 Difference]: Finished difference Result 574 states and 794 transitions. [2019-11-28 21:06:54,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 21:06:54,298 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 574 states and 794 transitions. [2019-11-28 21:06:54,306 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 411 [2019-11-28 21:06:54,312 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 574 states to 574 states and 794 transitions. [2019-11-28 21:06:54,313 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 574 [2019-11-28 21:06:54,314 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 574 [2019-11-28 21:06:54,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 574 states and 794 transitions. [2019-11-28 21:06:54,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:06:54,317 INFO L688 BuchiCegarLoop]: Abstraction has 574 states and 794 transitions. [2019-11-28 21:06:54,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states and 794 transitions. [2019-11-28 21:06:54,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 338. [2019-11-28 21:06:54,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2019-11-28 21:06:54,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 460 transitions. [2019-11-28 21:06:54,346 INFO L711 BuchiCegarLoop]: Abstraction has 338 states and 460 transitions. [2019-11-28 21:06:54,346 INFO L591 BuchiCegarLoop]: Abstraction has 338 states and 460 transitions. [2019-11-28 21:06:54,346 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 21:06:54,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 338 states and 460 transitions. [2019-11-28 21:06:54,350 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 236 [2019-11-28 21:06:54,350 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:06:54,350 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:06:54,351 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:06:54,352 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:06:54,352 INFO L794 eck$LassoCheckResult]: Stem: 1464#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(13);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string25.base, #t~string25.offset, 1);call write~init~int(80, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(117, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(109, #t~string25.base, 3 + #t~string25.offset, 1);call write~init~int(112, #t~string25.base, 4 + #t~string25.offset, 1);call write~init~int(58, #t~string25.base, 5 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 6 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string31.base, #t~string31.offset, 1);call write~init~int(32, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1344#L-1 havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 1345#L563 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1350#L571 main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 1368#L265 assume 0 != main_~tmp~1; 1369#L238 havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1370#L59-1 [2019-11-28 21:06:54,353 INFO L796 eck$LassoCheckResult]: Loop: 1370#L59-1 assume !false; 1467#L487 assume test_~splverifierCounter~0 < 4; 1383#L488 test_~tmp~6 := test_#t~nondet35;havoc test_#t~nondet35; 1384#L496 assume !(0 != test_~tmp~6); 1430#L496-1 test_~tmp___0~2 := test_#t~nondet36;havoc test_#t~nondet36; 1431#L506 assume !(0 != test_~tmp___0~2); 1475#L506-1 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 1351#L516 assume 0 != test_~tmp___2~0; 1343#L522-2 assume !(0 != ~pumpRunning~0); 1348#L288 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1349#L346 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret14, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 1414#L320-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1372#L166-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1373#L171-1 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 1454#L465-3 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 1455#L465-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1438#L471-1 processEnvironment__wrappee__methaneQuery_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~2 := processEnvironment__wrappee__methaneQuery_#t~ret14;havoc processEnvironment__wrappee__methaneQuery_#t~ret14; 1439#L324-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~2); 1611#L295 havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;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; 1477#L126-3 __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 1478#L53 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1362#L158 __utac_acc__Specification3_spec__1_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 1363#L59 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 1370#L59-1 [2019-11-28 21:06:54,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:06:54,353 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-11-28 21:06:54,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:06:54,354 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401677067] [2019-11-28 21:06:54,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:06:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:06:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:06:54,421 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:06:54,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:06:54,422 INFO L82 PathProgramCache]: Analyzing trace with hash -877371915, now seen corresponding path program 1 times [2019-11-28 21:06:54,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:06:54,423 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579289435] [2019-11-28 21:06:54,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:06:54,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:06:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:06:54,437 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:06:54,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:06:54,438 INFO L82 PathProgramCache]: Analyzing trace with hash -679618673, now seen corresponding path program 1 times [2019-11-28 21:06:54,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:06:54,438 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588633911] [2019-11-28 21:06:54,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:06:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:06:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:06:54,516 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:06:54,676 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-11-28 21:07:17,153 WARN L192 SmtUtils]: Spent 22.41 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 21:07:28,637 WARN L192 SmtUtils]: Spent 11.48 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 21:07:28,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:07:28 BoogieIcfgContainer [2019-11-28 21:07:28,732 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:07:28,734 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:07:28,734 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:07:28,734 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:07:28,735 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:06:52" (3/4) ... [2019-11-28 21:07:28,739 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:07:28,826 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:07:28,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:07:28,828 INFO L168 Benchmark]: Toolchain (without parser) took 38348.13 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 303.6 MB). Free memory was 961.7 MB in the beginning and 1.2 GB in the end (delta: -194.8 MB). Peak memory consumption was 108.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:07:28,829 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:07:28,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 603.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -132.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:07:28,830 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:07:28,832 INFO L168 Benchmark]: Boogie Preprocessor took 67.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:07:28,834 INFO L168 Benchmark]: RCFGBuilder took 936.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:07:28,835 INFO L168 Benchmark]: BuchiAutomizer took 36564.75 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 190.8 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -151.6 MB). Peak memory consumption was 401.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:07:28,835 INFO L168 Benchmark]: Witness Printer took 92.64 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:07:28,841 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 603.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -132.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 67.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 936.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 36564.75 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 190.8 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -151.6 MB). Peak memory consumption was 401.0 MB. Max. memory is 11.5 GB. * Witness Printer took 92.64 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 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 338 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 36.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 35.7s. Construction of modules took 0.2s. 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, 236 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 338 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 593 SDtfs, 996 SDslu, 821 SDs, 0 SdLazy, 164 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 486]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6035} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7969d122=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e612016=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3cf503d1=0, retValue_acc=0, NULL=0, NULL=6036, NULL=0, NULL=6035, retValue_acc=0, NULL=6050, NULL=0, NULL=0, NULL=6052, NULL=6037, methaneLevelCritical=0, NULL=6046, tmp___0=0, NULL=0, NULL=0, NULL=6060, tmp=0, NULL=6058, NULL=0, tmp___1=0, NULL=6056, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a5caf4b=0, NULL=6038, NULL=0, NULL=0, NULL=0, tmp___0=1, tmp=0, cleanupTimeShifts=4, NULL=6057, NULL=6039, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60ad5755=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9caa956=62, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@298cd004=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6196cf8f=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=6045, \result=1, NULL=6048, NULL=0, NULL=6040, \result=0, NULL=0, NULL=6055, NULL=0, NULL=6051, \result=1, retValue_acc=1, head=0, pumpRunning=0, \result=0, NULL=6054, NULL=0, tmp=1, retValue_acc=1, NULL=0, NULL=0, \result=1, NULL=6053, NULL=6047, NULL=0, retValue_acc=1, NULL=0, tmp___2=62, tmp___0=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40cc9c88=0, splverifierCounter=0, NULL=0, \result=0, NULL=6043, NULL=6042, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f058eb8=0, NULL=6049, tmp___1=0, tmp=0, head=0, NULL=6041, NULL=6044, NULL=0, NULL=6059, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bdfbf31=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L83] int waterLevel = 1; [L84] int methaneLevelCritical = 0; [L177] int cleanupTimeShifts = 4; [L281] int pumpRunning = 0; [L282] int systemActive = 1; [L754] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L256] int retValue_acc ; [L257] int tmp ; [L567] int retValue_acc ; [L570] retValue_acc = 1 [L571] return (retValue_acc); [L263] tmp = valid_product() [L265] COND TRUE \read(tmp) [L477] int splverifierCounter ; [L478] int tmp ; [L479] int tmp___0 ; [L480] int tmp___1 ; [L481] int tmp___2 ; [L484] splverifierCounter = 0 Loop: [L486] COND TRUE 1 [L488] COND TRUE splverifierCounter < 4 [L494] tmp = __VERIFIER_nondet_int() [L496] COND FALSE !(\read(tmp)) [L504] tmp___0 = __VERIFIER_nondet_int() [L506] COND FALSE !(\read(tmp___0)) [L514] tmp___2 = __VERIFIER_nondet_int() [L516] COND TRUE \read(tmp___2) [L288] COND FALSE !(\read(pumpRunning)) [L295] COND TRUE \read(systemActive) [L343] int tmp ; [L346] COND FALSE !(\read(pumpRunning)) [L317] int tmp ; [L320] COND TRUE ! pumpRunning [L457] int retValue_acc ; [L458] int tmp ; [L459] int tmp___0 ; [L163] int retValue_acc ; [L166] COND TRUE waterLevel < 2 [L167] retValue_acc = 1 [L168] return (retValue_acc); [L463] tmp = isHighWaterSensorDry() [L465] COND TRUE \read(tmp) [L466] tmp___0 = 0 [L470] retValue_acc = tmp___0 [L471] return (retValue_acc); [L322] tmp = isHighWaterLevel() [L324] COND FALSE !(\read(tmp)) [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L122] int retValue_acc ; [L125] retValue_acc = methaneLevelCritical [L126] return (retValue_acc); [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L154] int retValue_acc ; [L157] retValue_acc = waterLevel [L158] return (retValue_acc); [L57] tmp___0 = getWaterLevel() [L59] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...