./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product49.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_product49.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 81d3a03e2badb1d355e733e1f917b69305964186 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:07:07,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:07:07,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:07:07,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:07:07,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:07:07,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:07:07,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:07:07,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:07:07,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:07:07,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:07:07,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:07:07,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:07:07,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:07:07,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:07:07,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:07:07,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:07:07,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:07:07,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:07:07,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:07:07,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:07:07,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:07:07,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:07:07,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:07:07,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:07:07,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:07:07,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:07:07,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:07:07,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:07:07,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:07:07,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:07:07,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:07:07,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:07:07,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:07:07,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:07:07,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:07:07,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:07:07,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:07:07,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:07:07,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:07:07,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:07:07,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:07:07,412 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:07:07,428 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:07:07,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:07:07,430 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:07:07,430 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:07:07,430 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:07:07,431 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:07:07,431 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:07:07,431 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:07:07,431 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:07:07,431 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:07:07,432 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:07:07,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:07:07,432 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:07:07,432 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:07:07,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:07:07,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:07:07,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:07:07,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:07:07,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:07:07,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:07:07,434 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:07:07,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:07:07,434 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:07:07,434 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:07:07,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:07:07,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:07:07,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:07:07,435 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:07:07,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:07:07,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:07:07,436 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:07:07,437 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:07:07,438 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:07:07,438 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 -> 81d3a03e2badb1d355e733e1f917b69305964186 [2019-11-28 21:07:07,731 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:07:07,744 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:07:07,748 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:07:07,749 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:07:07,749 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:07:07,750 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c [2019-11-28 21:07:07,810 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eca05245f/eafddb28f5ff45bf80ea664ccbc684e8/FLAG475631bb3 [2019-11-28 21:07:08,323 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:07:08,324 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c [2019-11-28 21:07:08,337 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eca05245f/eafddb28f5ff45bf80ea664ccbc684e8/FLAG475631bb3 [2019-11-28 21:07:08,643 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eca05245f/eafddb28f5ff45bf80ea664ccbc684e8 [2019-11-28 21:07:08,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:07:08,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:07:08,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:07:08,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:07:08,652 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:07:08,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:07:08" (1/1) ... [2019-11-28 21:07:08,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@564c4a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:07:08, skipping insertion in model container [2019-11-28 21:07:08,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:07:08" (1/1) ... [2019-11-28 21:07:08,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:07:08,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:07:09,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:07:09,139 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:07:09,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:07:09,318 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:07:09,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:07:09 WrapperNode [2019-11-28 21:07:09,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:07:09,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:07:09,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:07:09,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:07:09,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:07:09" (1/1) ... [2019-11-28 21:07:09,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:07:09" (1/1) ... [2019-11-28 21:07:09,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:07:09,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:07:09,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:07:09,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:07:09,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:07:09" (1/1) ... [2019-11-28 21:07:09,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:07:09" (1/1) ... [2019-11-28 21:07:09,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:07:09" (1/1) ... [2019-11-28 21:07:09,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:07:09" (1/1) ... [2019-11-28 21:07:09,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:07:09" (1/1) ... [2019-11-28 21:07:09,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:07:09" (1/1) ... [2019-11-28 21:07:09,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:07:09" (1/1) ... [2019-11-28 21:07:09,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:07:09,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:07:09,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:07:09,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:07:09,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:07:09" (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 21:07:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:07:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:07:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:07:09,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:07:10,441 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:07:10,442 INFO L287 CfgBuilder]: Removed 162 assume(true) statements. [2019-11-28 21:07:10,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:07:10 BoogieIcfgContainer [2019-11-28 21:07:10,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:07:10,444 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:07:10,444 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:07:10,447 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:07:10,448 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:07:10,448 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:07:08" (1/3) ... [2019-11-28 21:07:10,449 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3307152e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:07:10, skipping insertion in model container [2019-11-28 21:07:10,450 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:07:10,450 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:07:09" (2/3) ... [2019-11-28 21:07:10,450 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3307152e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:07:10, skipping insertion in model container [2019-11-28 21:07:10,450 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:07:10,451 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:07:10" (3/3) ... [2019-11-28 21:07:10,452 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product49.cil.c [2019-11-28 21:07:10,495 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:07:10,495 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:07:10,495 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:07:10,495 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:07:10,496 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:07:10,496 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:07:10,496 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:07:10,496 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:07:10,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states. [2019-11-28 21:07:10,547 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2019-11-28 21:07:10,547 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:07:10,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:07:10,557 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:07:10,557 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:07:10,558 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:07:10,558 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states. [2019-11-28 21:07:10,566 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2019-11-28 21:07:10,567 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:07:10,567 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:07:10,568 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:07:10,568 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:07:10,574 INFO L794 eck$LassoCheckResult]: Stem: 104#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(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 4#L-1true havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 43#L480true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 49#L488true main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 108#L941true assume 0 != main_~tmp~9; 21#L918true havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 98#L333-1true [2019-11-28 21:07:10,575 INFO L796 eck$LassoCheckResult]: Loop: 98#L333-1true assume !false; 57#L262true assume test_~splverifierCounter~0 < 4; 3#L263true test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 14#L271true assume !(0 != test_~tmp~4); 36#L271-1true test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 95#L281true assume !(0 != test_~tmp___0~2); 91#L281-1true test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 121#L291true assume 0 != test_~tmp___2~0; 99#L297-2true assume !(0 != ~pumpRunning~0); 72#L58true assume !(0 != ~systemActive~0); 11#L65true havoc __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_#t~ret27, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 24#L395true __utac_acc__Specification3_spec__1_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret25;havoc __utac_acc__Specification3_spec__1_#t~ret25; 114#L327true assume 0 != __utac_acc__Specification3_spec__1_~tmp~5; 98#L333-1true [2019-11-28 21:07:10,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:07:10,583 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 21:07:10,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:07:10,594 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596077769] [2019-11-28 21:07:10,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:07:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:07:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:07:10,927 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:07:10,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:07:10,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1679775179, now seen corresponding path program 1 times [2019-11-28 21:07:10,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:07:10,930 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023944120] [2019-11-28 21:07:10,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:07:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:07:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:07:10,948 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:07:10,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:07:10,951 INFO L82 PathProgramCache]: Analyzing trace with hash 34503759, now seen corresponding path program 1 times [2019-11-28 21:07:10,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:07:10,951 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651642019] [2019-11-28 21:07:10,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:07:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:07:11,134 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 21:07:11,135 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651642019] [2019-11-28 21:07:11,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:07:11,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 21:07:11,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129851766] [2019-11-28 21:07:11,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:07:11,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 21:07:11,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 21:07:11,347 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 6 states. [2019-11-28 21:07:11,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:07:11,579 INFO L93 Difference]: Finished difference Result 120 states and 172 transitions. [2019-11-28 21:07:11,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 21:07:11,582 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 120 states and 172 transitions. [2019-11-28 21:07:11,591 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2019-11-28 21:07:11,598 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 120 states to 113 states and 165 transitions. [2019-11-28 21:07:11,599 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 113 [2019-11-28 21:07:11,600 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 113 [2019-11-28 21:07:11,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 113 states and 165 transitions. [2019-11-28 21:07:11,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:07:11,606 INFO L688 BuchiCegarLoop]: Abstraction has 113 states and 165 transitions. [2019-11-28 21:07:11,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states and 165 transitions. [2019-11-28 21:07:11,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-11-28 21:07:11,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-11-28 21:07:11,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2019-11-28 21:07:11,649 INFO L711 BuchiCegarLoop]: Abstraction has 113 states and 165 transitions. [2019-11-28 21:07:11,650 INFO L591 BuchiCegarLoop]: Abstraction has 113 states and 165 transitions. [2019-11-28 21:07:11,652 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:07:11,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states and 165 transitions. [2019-11-28 21:07:11,659 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2019-11-28 21:07:11,659 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:07:11,659 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:07:11,660 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:07:11,661 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:07:11,661 INFO L794 eck$LassoCheckResult]: Stem: 370#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(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 260#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 261#L480 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 317#L488 main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 324#L941 assume 0 != main_~tmp~9; 293#L918 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 294#L333-1 [2019-11-28 21:07:11,661 INFO L796 eck$LassoCheckResult]: Loop: 294#L333-1 assume !false; 331#L262 assume test_~splverifierCounter~0 < 4; 258#L263 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 259#L271 assume !(0 != test_~tmp~4); 281#L271-1 test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 310#L281 assume !(0 != test_~tmp___0~2); 361#L281-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 362#L291 assume 0 != test_~tmp___2~0; 368#L297-2 assume !(0 != ~pumpRunning~0); 344#L58 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 337#L116 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 338#L90-1 assume !(0 == ~pumpRunning~0); 274#L65 havoc __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_#t~ret27, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 275#L395 __utac_acc__Specification3_spec__1_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret25;havoc __utac_acc__Specification3_spec__1_#t~ret25; 299#L327 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5; 294#L333-1 [2019-11-28 21:07:11,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:07:11,662 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 21:07:11,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:07:11,663 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219886077] [2019-11-28 21:07:11,663 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:07:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:07:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:07:11,781 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:07:11,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:07:11,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1996917037, now seen corresponding path program 1 times [2019-11-28 21:07:11,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:07:11,786 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93167099] [2019-11-28 21:07:11,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:07:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:07:11,818 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 21:07:11,818 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93167099] [2019-11-28 21:07:11,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:07:11,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:07:11,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971569899] [2019-11-28 21:07:11,819 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:07:11,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:07:11,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:07:11,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:07:11,820 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. cyclomatic complexity: 54 Second operand 3 states. [2019-11-28 21:07:11,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:07:11,947 INFO L93 Difference]: Finished difference Result 160 states and 222 transitions. [2019-11-28 21:07:11,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:07:11,948 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 222 transitions. [2019-11-28 21:07:11,952 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2019-11-28 21:07:11,959 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 160 states and 222 transitions. [2019-11-28 21:07:11,960 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 160 [2019-11-28 21:07:11,960 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 160 [2019-11-28 21:07:11,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 222 transitions. [2019-11-28 21:07:11,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:07:11,964 INFO L688 BuchiCegarLoop]: Abstraction has 160 states and 222 transitions. [2019-11-28 21:07:11,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 222 transitions. [2019-11-28 21:07:11,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2019-11-28 21:07:11,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-11-28 21:07:11,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 222 transitions. [2019-11-28 21:07:11,983 INFO L711 BuchiCegarLoop]: Abstraction has 160 states and 222 transitions. [2019-11-28 21:07:11,984 INFO L591 BuchiCegarLoop]: Abstraction has 160 states and 222 transitions. [2019-11-28 21:07:11,988 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:07:11,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 160 states and 222 transitions. [2019-11-28 21:07:11,990 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2019-11-28 21:07:11,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:07:11,990 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:07:11,991 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:07:11,992 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 21:07:11,992 INFO L794 eck$LassoCheckResult]: Stem: 655#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(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 539#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 540#L480 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 596#L488 main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 602#L941 assume 0 != main_~tmp~9; 571#L918 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 572#L333-1 [2019-11-28 21:07:11,992 INFO L796 eck$LassoCheckResult]: Loop: 572#L333-1 assume !false; 611#L262 assume test_~splverifierCounter~0 < 4; 537#L263 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 538#L271 assume !(0 != test_~tmp~4); 559#L271-1 test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 588#L281 assume !(0 != test_~tmp___0~2); 646#L281-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 647#L291 assume 0 != test_~tmp___2~0; 653#L297-2 assume !(0 != ~pumpRunning~0); 625#L58 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 618#L116 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 619#L90-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 639#L435-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 640#L440-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 623#L218-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 622#L218-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 598#L224-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 599#L94-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 552#L65 havoc __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_#t~ret27, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 553#L395 __utac_acc__Specification3_spec__1_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret25;havoc __utac_acc__Specification3_spec__1_#t~ret25; 577#L327 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5; 572#L333-1 [2019-11-28 21:07:11,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:07:11,993 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 21:07:11,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:07:11,994 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056030641] [2019-11-28 21:07:11,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:07:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:07:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:07:12,127 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:07:12,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:07:12,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1058929087, now seen corresponding path program 1 times [2019-11-28 21:07:12,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:07:12,129 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728123506] [2019-11-28 21:07:12,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:07:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:07:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:07:12,146 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:07:12,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:07:12,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1515000281, now seen corresponding path program 1 times [2019-11-28 21:07:12,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:07:12,148 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452192422] [2019-11-28 21:07:12,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:07:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:07:12,232 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 21:07:12,233 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452192422] [2019-11-28 21:07:12,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:07:12,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:07:12,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912542475] [2019-11-28 21:07:12,377 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-11-28 21:07:12,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:07:12,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:07:12,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:07:12,449 INFO L87 Difference]: Start difference. First operand 160 states and 222 transitions. cyclomatic complexity: 64 Second operand 5 states. [2019-11-28 21:07:12,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:07:12,614 INFO L93 Difference]: Finished difference Result 555 states and 776 transitions. [2019-11-28 21:07:12,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 21:07:12,615 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 555 states and 776 transitions. [2019-11-28 21:07:12,626 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 408 [2019-11-28 21:07:12,634 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 555 states to 555 states and 776 transitions. [2019-11-28 21:07:12,634 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 555 [2019-11-28 21:07:12,636 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 555 [2019-11-28 21:07:12,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 555 states and 776 transitions. [2019-11-28 21:07:12,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:07:12,644 INFO L688 BuchiCegarLoop]: Abstraction has 555 states and 776 transitions. [2019-11-28 21:07:12,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states and 776 transitions. [2019-11-28 21:07:12,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 314. [2019-11-28 21:07:12,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2019-11-28 21:07:12,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 430 transitions. [2019-11-28 21:07:12,689 INFO L711 BuchiCegarLoop]: Abstraction has 314 states and 430 transitions. [2019-11-28 21:07:12,689 INFO L591 BuchiCegarLoop]: Abstraction has 314 states and 430 transitions. [2019-11-28 21:07:12,689 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 21:07:12,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 314 states and 430 transitions. [2019-11-28 21:07:12,692 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 220 [2019-11-28 21:07:12,693 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:07:12,694 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:07:12,695 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:07:12,695 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 21:07:12,695 INFO L794 eck$LassoCheckResult]: Stem: 1399#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(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1274#L-1 havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 1275#L480 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 1334#L488 main_#t~ret74 := valid_product_#res;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 1341#L941 assume 0 != main_~tmp~9; 1309#L918 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1310#L333-1 [2019-11-28 21:07:12,697 INFO L796 eck$LassoCheckResult]: Loop: 1310#L333-1 assume !false; 1482#L262 assume test_~splverifierCounter~0 < 4; 1481#L263 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 1480#L271 assume !(0 != test_~tmp~4); 1478#L271-1 test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 1477#L281 assume !(0 != test_~tmp___0~2); 1476#L281-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 1475#L291 assume 0 != test_~tmp___2~0; 1473#L297-2 assume !(0 != ~pumpRunning~0); 1449#L58 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1470#L116 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1442#L90-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1453#L435-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1450#L440-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 1447#L218-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1445#L218-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1443#L224-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 1428#L94-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1286#L65 havoc __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_#t~ret27, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 1287#L395 __utac_acc__Specification3_spec__1_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret25;havoc __utac_acc__Specification3_spec__1_#t~ret25; 1313#L327 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~5);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 1486#L427 __utac_acc__Specification3_spec__1_#t~ret26 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~3 := __utac_acc__Specification3_spec__1_#t~ret26;havoc __utac_acc__Specification3_spec__1_#t~ret26; 1484#L333 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3); 1310#L333-1 [2019-11-28 21:07:12,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:07:12,697 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-11-28 21:07:12,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:07:12,698 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387539662] [2019-11-28 21:07:12,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:07:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:07:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:07:12,792 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:07:12,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:07:12,793 INFO L82 PathProgramCache]: Analyzing trace with hash -276388655, now seen corresponding path program 1 times [2019-11-28 21:07:12,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:07:12,794 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910579100] [2019-11-28 21:07:12,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:07:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:07:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:07:12,808 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:07:12,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:07:12,809 INFO L82 PathProgramCache]: Analyzing trace with hash -78635413, now seen corresponding path program 1 times [2019-11-28 21:07:12,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:07:12,810 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050946569] [2019-11-28 21:07:12,810 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:07:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:07:12,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:07:12,884 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:07:13,063 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-11-28 21:07:34,271 WARN L192 SmtUtils]: Spent 21.13 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 21:07:47,170 WARN L192 SmtUtils]: Spent 12.89 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 21:07:47,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:07:47 BoogieIcfgContainer [2019-11-28 21:07:47,275 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:07:47,276 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:07:47,276 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:07:47,277 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:07:47,277 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:07:10" (3/4) ... [2019-11-28 21:07:47,282 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:07:47,358 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:07:47,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:07:47,360 INFO L168 Benchmark]: Toolchain (without parser) took 38712.99 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 319.3 MB). Free memory was 955.0 MB in the beginning and 1.2 GB in the end (delta: -225.4 MB). Peak memory consumption was 93.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:07:47,361 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:07:47,362 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -169.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:07:47,362 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:07:47,363 INFO L168 Benchmark]: Boogie Preprocessor took 46.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:07:47,364 INFO L168 Benchmark]: RCFGBuilder took 999.42 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: 63.7 MB). Peak memory consumption was 63.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:07:47,364 INFO L168 Benchmark]: BuchiAutomizer took 36830.87 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 170.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -125.8 MB). Peak memory consumption was 378.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:07:47,365 INFO L168 Benchmark]: Witness Printer took 83.10 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:07:47,368 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 671.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -169.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 77.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.45 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 999.42 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: 63.7 MB). Peak memory consumption was 63.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 36830.87 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 170.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -125.8 MB). Peak memory consumption was 378.6 MB. Max. memory is 11.5 GB. * Witness Printer took 83.10 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 314 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 36.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 35.8s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 241 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 314 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 566 SDtfs, 1292 SDslu, 857 SDs, 0 SdLazy, 81 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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: 261]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6396} State at position 1 is {NULL=0, NULL=0, NULL=6402, NULL=6396, NULL=6419, NULL=0, NULL=0, methaneLevelCritical=0, NULL=6404, NULL=6417, tmp___0=0, tmp=0, NULL=0, NULL=0, NULL=6415, retValue_acc=0, NULL=0, NULL=6399, NULL=0, tmp___1=0, NULL=6423, NULL=0, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@482e6386=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1273f42e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d75e5e6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@113f2f20=0, cleanupTimeShifts=4, NULL=6420, tmp=0, NULL=6397, tmp___0=1, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=6403, \result=1, NULL=0, NULL=6413, NULL=0, NULL=6418, \result=0, NULL=0, retValue_acc=0, NULL=6411, NULL=0, NULL=0, NULL=6416, \result=1, retValue_acc=0, NULL=6401, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@233511f5=0, NULL=6414, \result=0, retValue_acc=1, NULL=6405, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15f2a1a6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19edbf75=61, NULL=0, NULL=6398, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d33397=0, \result=1, NULL=6406, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39dda28d=0, NULL=6410, NULL=0, tmp=1, tmp___2=61, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68afe2d6=0, retValue_acc=1, splverifierCounter=0, NULL=0, \result=0, NULL=6407, NULL=6409, NULL=6412, tmp=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6145d145=0, head=0, tmp=1, NULL=0, NULL=6400, NULL=0, NULL=6408} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int pumpRunning = 0; [L51] int systemActive = 1; [L352] int waterLevel = 1; [L353] int methaneLevelCritical = 0; [L662] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L859] int cleanupTimeShifts = 4; [L932] int retValue_acc ; [L933] int tmp ; [L484] int retValue_acc ; [L487] retValue_acc = 1 [L488] return (retValue_acc); [L939] tmp = valid_product() [L941] COND TRUE \read(tmp) [L252] int splverifierCounter ; [L253] int tmp ; [L254] int tmp___0 ; [L255] int tmp___1 ; [L256] int tmp___2 ; [L259] splverifierCounter = 0 Loop: [L261] COND TRUE 1 [L263] COND TRUE splverifierCounter < 4 [L269] tmp = __VERIFIER_nondet_int() [L271] COND FALSE !(\read(tmp)) [L279] tmp___0 = __VERIFIER_nondet_int() [L281] COND FALSE !(\read(tmp___0)) [L289] tmp___2 = __VERIFIER_nondet_int() [L291] COND TRUE \read(tmp___2) [L58] COND FALSE !(\read(pumpRunning)) [L65] COND TRUE \read(systemActive) [L113] int tmp ; [L116] COND FALSE !(\read(pumpRunning)) [L87] int tmp ; [L90] COND TRUE ! pumpRunning [L210] int retValue_acc ; [L211] int tmp ; [L212] int tmp___0 ; [L432] int retValue_acc ; [L435] COND TRUE waterLevel < 2 [L436] retValue_acc = 1 [L437] return (retValue_acc); [L216] tmp = isHighWaterSensorDry() [L218] COND TRUE \read(tmp) [L219] tmp___0 = 0 [L223] retValue_acc = tmp___0 [L224] return (retValue_acc); [L92] tmp = isHighWaterLevel() [L94] COND FALSE !(\read(tmp)) [L319] int tmp ; [L320] int tmp___0 ; [L321] int tmp___1 ; [L391] int retValue_acc ; [L394] retValue_acc = methaneLevelCritical [L395] return (retValue_acc); [L325] tmp = isMethaneLevelCritical() [L327] COND FALSE !(\read(tmp)) [L423] int retValue_acc ; [L426] retValue_acc = waterLevel [L427] return (retValue_acc); [L331] tmp___0 = getWaterLevel() [L333] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...