./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product48.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_spec1_product48.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 79b21ff72ec330797470eae9e06bb1504f09bc51 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:59:41,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:59:41,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:59:41,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:59:41,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:59:41,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:59:41,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:59:41,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:59:41,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:59:41,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:59:41,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:59:41,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:59:41,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:59:41,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:59:41,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:59:41,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:59:41,503 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:59:41,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:59:41,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:59:41,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:59:41,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:59:41,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:59:41,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:59:41,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:59:41,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:59:41,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:59:41,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:59:41,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:59:41,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:59:41,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:59:41,534 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:59:41,535 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:59:41,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:59:41,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:59:41,539 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:59:41,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:59:41,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:59:41,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:59:41,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:59:41,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:59:41,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:59:41,544 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 20:59:41,587 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:59:41,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:59:41,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:59:41,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:59:41,592 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:59:41,593 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:59:41,593 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:59:41,593 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:59:41,595 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:59:41,596 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:59:41,596 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:59:41,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:59:41,597 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:59:41,597 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:59:41,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:59:41,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:59:41,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:59:41,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:59:41,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:59:41,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:59:41,600 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:59:41,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:59:41,601 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:59:41,601 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:59:41,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:59:41,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:59:41,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:59:41,602 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:59:41,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:59:41,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:59:41,603 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:59:41,605 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:59:41,606 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:59:41,607 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 -> 79b21ff72ec330797470eae9e06bb1504f09bc51 [2019-11-28 20:59:41,904 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:59:41,917 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:59:41,920 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:59:41,922 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:59:41,922 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:59:41,923 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product48.cil.c [2019-11-28 20:59:41,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4bb49bc7/13dbc5dc3d0d4dcfa96c80965eb5a02a/FLAG0a7926593 [2019-11-28 20:59:42,555 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:59:42,556 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product48.cil.c [2019-11-28 20:59:42,572 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4bb49bc7/13dbc5dc3d0d4dcfa96c80965eb5a02a/FLAG0a7926593 [2019-11-28 20:59:42,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4bb49bc7/13dbc5dc3d0d4dcfa96c80965eb5a02a [2019-11-28 20:59:42,907 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:59:42,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:59:42,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:59:42,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:59:42,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:59:42,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:59:42" (1/1) ... [2019-11-28 20:59:42,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b95a8f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:42, skipping insertion in model container [2019-11-28 20:59:42,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:59:42" (1/1) ... [2019-11-28 20:59:42,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:59:42,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:59:43,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:59:43,356 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:59:43,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:59:43,482 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:59:43,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:43 WrapperNode [2019-11-28 20:59:43,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:59:43,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:59:43,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:59:43,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:59:43,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:43" (1/1) ... [2019-11-28 20:59:43,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:43" (1/1) ... [2019-11-28 20:59:43,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:59:43,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:59:43,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:59:43,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:59:43,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:43" (1/1) ... [2019-11-28 20:59:43,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:43" (1/1) ... [2019-11-28 20:59:43,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:43" (1/1) ... [2019-11-28 20:59:43,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:43" (1/1) ... [2019-11-28 20:59:43,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:43" (1/1) ... [2019-11-28 20:59:43,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:43" (1/1) ... [2019-11-28 20:59:43,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:43" (1/1) ... [2019-11-28 20:59:43,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:59:43,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:59:43,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:59:43,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:59:43,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:43" (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 20:59:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:59:43,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 20:59:43,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:59:43,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:59:44,621 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:59:44,621 INFO L287 CfgBuilder]: Removed 198 assume(true) statements. [2019-11-28 20:59:44,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:59:44 BoogieIcfgContainer [2019-11-28 20:59:44,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:59:44,624 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:59:44,624 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:59:44,628 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:59:44,629 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:59:44,629 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:59:42" (1/3) ... [2019-11-28 20:59:44,631 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d5958f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:59:44, skipping insertion in model container [2019-11-28 20:59:44,631 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:59:44,631 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:43" (2/3) ... [2019-11-28 20:59:44,632 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d5958f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:59:44, skipping insertion in model container [2019-11-28 20:59:44,632 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:59:44,632 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:59:44" (3/3) ... [2019-11-28 20:59:44,634 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product48.cil.c [2019-11-28 20:59:44,685 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:59:44,685 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:59:44,685 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:59:44,686 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:59:44,686 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:59:44,686 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:59:44,687 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:59:44,687 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:59:44,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 128 states. [2019-11-28 20:59:44,736 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2019-11-28 20:59:44,736 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:59:44,736 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:59:44,744 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:59:44,744 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:59:44,744 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:59:44,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 128 states. [2019-11-28 20:59:44,752 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2019-11-28 20:59:44,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:59:44,753 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:59:44,754 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:59:44,754 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:59:44,760 INFO L794 eck$LassoCheckResult]: Stem: 73#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 9#L-1true havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~3, main_~tmp~0;havoc main_~retValue_acc~3;havoc main_~tmp~0; 36#L959true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 38#L967true main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 41#L229true assume 0 != main_~tmp~0; 37#L202true havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 99#L619-1true [2019-11-28 20:59:44,761 INFO L796 eck$LassoCheckResult]: Loop: 99#L619-1true assume !false; 39#L879true assume test_~splverifierCounter~0 < 4; 128#L880true test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 4#L888true assume !(0 != test_~tmp~9); 6#L888-1true test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 42#L898true assume !(0 != test_~tmp___0~2); 43#L898-1true test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 94#L908true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 105#L916-1true assume !(0 != ~pumpRunning~0); 25#L648true assume !(0 != ~systemActive~0); 88#L655true havoc __utac_acc__Specification1_spec__1_#t~ret46, __utac_acc__Specification1_spec__1_#t~ret47, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;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; 124#L90-3true __utac_acc__Specification1_spec__1_#t~ret46 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret46;havoc __utac_acc__Specification1_spec__1_#t~ret46; 96#L619true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 99#L619-1true [2019-11-28 20:59:44,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:44,768 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 20:59:44,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:44,778 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560670227] [2019-11-28 20:59:44,778 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:45,123 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:59:45,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:45,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1669770356, now seen corresponding path program 1 times [2019-11-28 20:59:45,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:45,126 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303209287] [2019-11-28 20:59:45,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:59:45,182 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 20:59:45,183 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303209287] [2019-11-28 20:59:45,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:59:45,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:59:45,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233244149] [2019-11-28 20:59:45,191 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 20:59:45,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:59:45,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:59:45,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:59:45,212 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 3 states. [2019-11-28 20:59:45,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:59:45,308 INFO L93 Difference]: Finished difference Result 250 states and 360 transitions. [2019-11-28 20:59:45,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:59:45,312 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 250 states and 360 transitions. [2019-11-28 20:59:45,321 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 162 [2019-11-28 20:59:45,330 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 250 states to 236 states and 345 transitions. [2019-11-28 20:59:45,331 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 236 [2019-11-28 20:59:45,333 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 236 [2019-11-28 20:59:45,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 236 states and 345 transitions. [2019-11-28 20:59:45,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:59:45,336 INFO L688 BuchiCegarLoop]: Abstraction has 236 states and 345 transitions. [2019-11-28 20:59:45,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states and 345 transitions. [2019-11-28 20:59:45,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 234. [2019-11-28 20:59:45,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2019-11-28 20:59:45,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 342 transitions. [2019-11-28 20:59:45,383 INFO L711 BuchiCegarLoop]: Abstraction has 234 states and 342 transitions. [2019-11-28 20:59:45,384 INFO L591 BuchiCegarLoop]: Abstraction has 234 states and 342 transitions. [2019-11-28 20:59:45,384 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:59:45,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 234 states and 342 transitions. [2019-11-28 20:59:45,388 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 160 [2019-11-28 20:59:45,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:59:45,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:59:45,389 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:59:45,389 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:59:45,390 INFO L794 eck$LassoCheckResult]: Stem: 482#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 398#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~3, main_~tmp~0;havoc main_~retValue_acc~3;havoc main_~tmp~0; 399#L959 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 442#L967 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 445#L229 assume 0 != main_~tmp~0; 443#L202 havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 444#L619-1 [2019-11-28 20:59:45,390 INFO L796 eck$LassoCheckResult]: Loop: 444#L619-1 assume !false; 446#L879 assume test_~splverifierCounter~0 < 4; 447#L880 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 389#L888 assume !(0 != test_~tmp~9); 391#L888-1 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 394#L898 assume !(0 != test_~tmp___0~2); 450#L898-1 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 452#L908 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 502#L916-1 assume !(0 != ~pumpRunning~0); 425#L648 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 426#L706 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret48, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 469#L680-1 assume !(0 == ~pumpRunning~0); 388#L655 havoc __utac_acc__Specification1_spec__1_#t~ret46, __utac_acc__Specification1_spec__1_#t~ret47, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;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; 495#L90-3 __utac_acc__Specification1_spec__1_#t~ret46 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret46;havoc __utac_acc__Specification1_spec__1_#t~ret46; 505#L619 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 444#L619-1 [2019-11-28 20:59:45,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:45,391 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 20:59:45,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:45,391 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11331566] [2019-11-28 20:59:45,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:45,604 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:59:45,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:45,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1411824402, now seen corresponding path program 1 times [2019-11-28 20:59:45,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:45,606 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171949652] [2019-11-28 20:59:45,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:59:45,622 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 20:59:45,622 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171949652] [2019-11-28 20:59:45,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:59:45,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:59:45,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770752645] [2019-11-28 20:59:45,623 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 20:59:45,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:59:45,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:59:45,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:59:45,625 INFO L87 Difference]: Start difference. First operand 234 states and 342 transitions. cyclomatic complexity: 111 Second operand 3 states. [2019-11-28 20:59:45,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:59:45,771 INFO L93 Difference]: Finished difference Result 317 states and 442 transitions. [2019-11-28 20:59:45,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:59:45,772 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 317 states and 442 transitions. [2019-11-28 20:59:45,777 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 223 [2019-11-28 20:59:45,781 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 317 states to 317 states and 442 transitions. [2019-11-28 20:59:45,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 317 [2019-11-28 20:59:45,783 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 317 [2019-11-28 20:59:45,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 317 states and 442 transitions. [2019-11-28 20:59:45,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:59:45,786 INFO L688 BuchiCegarLoop]: Abstraction has 317 states and 442 transitions. [2019-11-28 20:59:45,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states and 442 transitions. [2019-11-28 20:59:45,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2019-11-28 20:59:45,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2019-11-28 20:59:45,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 442 transitions. [2019-11-28 20:59:45,810 INFO L711 BuchiCegarLoop]: Abstraction has 317 states and 442 transitions. [2019-11-28 20:59:45,810 INFO L591 BuchiCegarLoop]: Abstraction has 317 states and 442 transitions. [2019-11-28 20:59:45,811 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 20:59:45,811 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 317 states and 442 transitions. [2019-11-28 20:59:45,814 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 223 [2019-11-28 20:59:45,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:59:45,815 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:59:45,816 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:59:45,817 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 20:59:45,817 INFO L794 eck$LassoCheckResult]: Stem: 1038#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 957#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~3, main_~tmp~0;havoc main_~retValue_acc~3;havoc main_~tmp~0; 958#L959 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 999#L967 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 1002#L229 assume 0 != main_~tmp~0; 1000#L202 havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1001#L619-1 [2019-11-28 20:59:45,818 INFO L796 eck$LassoCheckResult]: Loop: 1001#L619-1 assume !false; 1003#L879 assume test_~splverifierCounter~0 < 4; 1004#L880 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 1079#L888 assume !(0 != test_~tmp~9); 1165#L888-1 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 1162#L898 assume !(0 != test_~tmp___0~2); 1159#L898-1 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 1155#L908 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1057#L916-1 assume !(0 != ~pumpRunning~0); 1149#L648 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 969#L706 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret48, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 970#L680-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1015#L130-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1016#L135-1 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 1022#L825-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 1066#L825-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 1037#L831-1 processEnvironment__wrappee__methaneQuery_#t~ret48 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret48;havoc processEnvironment__wrappee__methaneQuery_#t~ret48; 976#L684-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 945#L655 havoc __utac_acc__Specification1_spec__1_#t~ret46, __utac_acc__Specification1_spec__1_#t~ret47, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;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; 1051#L90-3 __utac_acc__Specification1_spec__1_#t~ret46 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret46;havoc __utac_acc__Specification1_spec__1_#t~ret46; 1061#L619 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 1001#L619-1 [2019-11-28 20:59:45,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:45,818 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 20:59:45,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:45,819 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371256975] [2019-11-28 20:59:45,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:45,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:46,009 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:59:46,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:46,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1301686428, now seen corresponding path program 1 times [2019-11-28 20:59:46,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:46,011 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120766203] [2019-11-28 20:59:46,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:59:46,054 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 20:59:46,054 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120766203] [2019-11-28 20:59:46,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:59:46,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 20:59:46,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797668566] [2019-11-28 20:59:46,056 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 20:59:46,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:59:46,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:59:46,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:59:46,057 INFO L87 Difference]: Start difference. First operand 317 states and 442 transitions. cyclomatic complexity: 128 Second operand 4 states. [2019-11-28 20:59:46,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:59:46,242 INFO L93 Difference]: Finished difference Result 891 states and 1218 transitions. [2019-11-28 20:59:46,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:59:46,243 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 891 states and 1218 transitions. [2019-11-28 20:59:46,253 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 637 [2019-11-28 20:59:46,262 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 891 states to 891 states and 1218 transitions. [2019-11-28 20:59:46,263 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 891 [2019-11-28 20:59:46,265 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 891 [2019-11-28 20:59:46,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 891 states and 1218 transitions. [2019-11-28 20:59:46,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:59:46,271 INFO L688 BuchiCegarLoop]: Abstraction has 891 states and 1218 transitions. [2019-11-28 20:59:46,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states and 1218 transitions. [2019-11-28 20:59:46,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 341. [2019-11-28 20:59:46,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2019-11-28 20:59:46,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 466 transitions. [2019-11-28 20:59:46,327 INFO L711 BuchiCegarLoop]: Abstraction has 341 states and 466 transitions. [2019-11-28 20:59:46,327 INFO L591 BuchiCegarLoop]: Abstraction has 341 states and 466 transitions. [2019-11-28 20:59:46,327 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 20:59:46,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 341 states and 466 transitions. [2019-11-28 20:59:46,334 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2019-11-28 20:59:46,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:59:46,335 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:59:46,336 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:59:46,338 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 20:59:46,339 INFO L794 eck$LassoCheckResult]: Stem: 2274#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2176#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~3, main_~tmp~0;havoc main_~retValue_acc~3;havoc main_~tmp~0; 2177#L959 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 2220#L967 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 2223#L229 assume 0 != main_~tmp~0; 2221#L202 havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2222#L619-1 [2019-11-28 20:59:46,340 INFO L796 eck$LassoCheckResult]: Loop: 2222#L619-1 assume !false; 2408#L879 assume test_~splverifierCounter~0 < 4; 2407#L880 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 2406#L888 assume !(0 != test_~tmp~9); 2171#L888-1 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 2172#L898 assume !(0 != test_~tmp___0~2); 2229#L898-1 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 2328#L908 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2304#L916-1 assume !(0 != ~pumpRunning~0); 2369#L648 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 2396#L706 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret48, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 2392#L680-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 2241#L130-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 2242#L135-1 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 2317#L825-3 assume !(0 != isHighWaterLevel_~tmp~8);isHighWaterLevel_~tmp___0~1 := 1; 2318#L825-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 2393#L831-1 processEnvironment__wrappee__methaneQuery_#t~ret48 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret48;havoc processEnvironment__wrappee__methaneQuery_#t~ret48; 2390#L684-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 2382#L655 havoc __utac_acc__Specification1_spec__1_#t~ret46, __utac_acc__Specification1_spec__1_#t~ret47, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;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; 2410#L90-3 __utac_acc__Specification1_spec__1_#t~ret46 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret46;havoc __utac_acc__Specification1_spec__1_#t~ret46; 2409#L619 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 2222#L619-1 [2019-11-28 20:59:46,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:46,341 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-11-28 20:59:46,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:46,342 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770874228] [2019-11-28 20:59:46,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:46,483 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:59:46,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:46,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1218273506, now seen corresponding path program 1 times [2019-11-28 20:59:46,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:46,485 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938847689] [2019-11-28 20:59:46,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:59:46,525 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 20:59:46,526 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938847689] [2019-11-28 20:59:46,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:59:46,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:59:46,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309826250] [2019-11-28 20:59:46,527 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 20:59:46,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:59:46,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:59:46,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:59:46,529 INFO L87 Difference]: Start difference. First operand 341 states and 466 transitions. cyclomatic complexity: 128 Second operand 5 states. [2019-11-28 20:59:46,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:59:46,715 INFO L93 Difference]: Finished difference Result 807 states and 1092 transitions. [2019-11-28 20:59:46,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:59:46,716 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 807 states and 1092 transitions. [2019-11-28 20:59:46,726 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 581 [2019-11-28 20:59:46,734 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 807 states to 807 states and 1092 transitions. [2019-11-28 20:59:46,734 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 807 [2019-11-28 20:59:46,736 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 807 [2019-11-28 20:59:46,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 807 states and 1092 transitions. [2019-11-28 20:59:46,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:59:46,738 INFO L688 BuchiCegarLoop]: Abstraction has 807 states and 1092 transitions. [2019-11-28 20:59:46,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states and 1092 transitions. [2019-11-28 20:59:46,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 377. [2019-11-28 20:59:46,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2019-11-28 20:59:46,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 502 transitions. [2019-11-28 20:59:46,763 INFO L711 BuchiCegarLoop]: Abstraction has 377 states and 502 transitions. [2019-11-28 20:59:46,763 INFO L591 BuchiCegarLoop]: Abstraction has 377 states and 502 transitions. [2019-11-28 20:59:46,763 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 20:59:46,764 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 377 states and 502 transitions. [2019-11-28 20:59:46,767 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 263 [2019-11-28 20:59:46,768 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:59:46,768 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:59:46,770 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:59:46,770 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 20:59:46,771 INFO L794 eck$LassoCheckResult]: Stem: 3441#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 3337#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~3, main_~tmp~0;havoc main_~retValue_acc~3;havoc main_~tmp~0; 3338#L959 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 3381#L967 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 3384#L229 assume 0 != main_~tmp~0; 3382#L202 havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3383#L619-1 [2019-11-28 20:59:46,772 INFO L796 eck$LassoCheckResult]: Loop: 3383#L619-1 assume !false; 3575#L879 assume test_~splverifierCounter~0 < 4; 3570#L880 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 3571#L888 assume !(0 != test_~tmp~9); 3603#L888-1 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 3602#L898 assume !(0 != test_~tmp___0~2); 3559#L898-1 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 3560#L908 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3470#L916-1 assume !(0 != ~pumpRunning~0); 3360#L648 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 3361#L706 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret48, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 3421#L680-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 3422#L130-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 3413#L135-1 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 3414#L825-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 3594#L825-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 3595#L831-1 processEnvironment__wrappee__methaneQuery_#t~ret48 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret48;havoc processEnvironment__wrappee__methaneQuery_#t~ret48; 3587#L684-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 3325#L655 havoc __utac_acc__Specification1_spec__1_#t~ret46, __utac_acc__Specification1_spec__1_#t~ret47, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;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; 3580#L90-3 __utac_acc__Specification1_spec__1_#t~ret46 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret46;havoc __utac_acc__Specification1_spec__1_#t~ret46; 3581#L619 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 3383#L619-1 [2019-11-28 20:59:46,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:46,773 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 5 times [2019-11-28 20:59:46,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:46,773 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512515206] [2019-11-28 20:59:46,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:46,865 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:59:46,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:46,866 INFO L82 PathProgramCache]: Analyzing trace with hash 621628058, now seen corresponding path program 1 times [2019-11-28 20:59:46,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:46,867 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261201703] [2019-11-28 20:59:46,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:46,885 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:59:46,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:46,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1077699252, now seen corresponding path program 1 times [2019-11-28 20:59:46,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:46,897 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574655870] [2019-11-28 20:59:46,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:46,990 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:59:47,134 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-11-28 21:00:12,751 WARN L192 SmtUtils]: Spent 25.52 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 21:00:27,003 WARN L192 SmtUtils]: Spent 14.25 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 21:00:27,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:00:27 BoogieIcfgContainer [2019-11-28 21:00:27,085 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:00:27,087 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:00:27,087 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:00:27,087 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:00:27,088 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:59:44" (3/4) ... [2019-11-28 21:00:27,092 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:00:27,168 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:00:27,168 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:00:27,170 INFO L168 Benchmark]: Toolchain (without parser) took 44262.11 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 287.8 MB). Free memory was 956.3 MB in the beginning and 1.2 GB in the end (delta: -262.3 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2019-11-28 21:00:27,171 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 21:00:27,172 INFO L168 Benchmark]: CACSL2BoogieTranslator took 573.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -127.6 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. [2019-11-28 21:00:27,172 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.37 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: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. [2019-11-28 21:00:27,173 INFO L168 Benchmark]: Boogie Preprocessor took 66.95 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:00:27,173 INFO L168 Benchmark]: RCFGBuilder took 987.72 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: 72.8 MB). Peak memory consumption was 72.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:00:27,179 INFO L168 Benchmark]: BuchiAutomizer took 42461.61 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 186.1 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -225.6 MB). Peak memory consumption was 400.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:00:27,180 INFO L168 Benchmark]: Witness Printer took 81.96 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: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2019-11-28 21:00:27,186 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 573.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -127.6 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 84.37 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: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 66.95 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 987.72 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: 72.8 MB). Peak memory consumption was 72.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 42461.61 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 186.1 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -225.6 MB). Peak memory consumption was 400.3 MB. Max. memory is 11.5 GB. * Witness Printer took 81.96 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: 9.5 MB). Peak memory consumption was 9.5 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 377 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 42.3s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 41.3s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 982 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 377 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 941 SDtfs, 1163 SDslu, 1188 SDs, 0 SdLazy, 197 SolverSat, 67 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 878]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2947} State at position 1 is {NULL=0, retValue_acc=0, NULL=2999, NULL=3000, NULL=0, NULL=2947, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1806961e=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@555721da=0, NULL=0, NULL=2949, NULL=0, NULL=2963, NULL=2955, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6341eb6c=0, NULL=0, NULL=0, methaneLevelCritical=0, tmp___0=0, retValue_acc=1, NULL=0, NULL=2954, NULL=2952, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@410b767e=0, NULL=0, tmp___1=0, tmp=0, NULL=2951, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54f8159=0, tmp___0=0, NULL=2959, cleanupTimeShifts=4, NULL=2948, NULL=3002, NULL=2957, NULL=3003, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64ff4ad7=0, \result=0, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, tmp=1, NULL=3001, \result=0, retValue_acc=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43966b66=0, NULL=0, NULL=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32f7a703=0, NULL=2961, NULL=2964, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b90ae95=57, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c6697f0=0, NULL=2998, tmp=1, tmp___2=57, tmp___0=0, NULL=2956, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=0, NULL=2950, NULL=2996, head=0, tmp=0, NULL=2953, NULL=0, NULL=2958, NULL=0, NULL=2997, NULL=2960, NULL=2962, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L141] int cleanupTimeShifts = 4; [L412] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L641] int pumpRunning = 0; [L642] int systemActive = 1; [L220] int retValue_acc ; [L221] int tmp ; [L963] int retValue_acc ; [L966] retValue_acc = 1 [L967] return (retValue_acc); [L227] tmp = valid_product() [L229] COND TRUE \read(tmp) [L869] int splverifierCounter ; [L870] int tmp ; [L871] int tmp___0 ; [L872] int tmp___1 ; [L873] int tmp___2 ; [L876] splverifierCounter = 0 Loop: [L878] COND TRUE 1 [L880] COND TRUE splverifierCounter < 4 [L886] tmp = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp)) [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND TRUE \read(tmp___2) [L854] systemActive = 1 [L648] COND FALSE !(\read(pumpRunning)) [L655] COND TRUE \read(systemActive) [L703] int tmp ; [L706] COND FALSE !(\read(pumpRunning)) [L677] int tmp ; [L680] COND TRUE ! pumpRunning [L817] int retValue_acc ; [L818] int tmp ; [L819] int tmp___0 ; [L127] int retValue_acc ; [L130] COND TRUE waterLevel < 2 [L131] retValue_acc = 1 [L132] return (retValue_acc); [L823] tmp = isHighWaterSensorDry() [L825] COND TRUE \read(tmp) [L826] tmp___0 = 0 [L830] retValue_acc = tmp___0 [L831] return (retValue_acc); [L682] tmp = isHighWaterLevel() [L684] COND FALSE !(\read(tmp)) [L612] int tmp ; [L613] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L617] tmp = isMethaneLevelCritical() [L619] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...